U.S. patent application number 16/716438 was filed with the patent office on 2021-06-17 for adjustable mount for contacting probes to a dense pattern of pads in a circuit board.
The applicant listed for this patent is Arista Networks, Inc.. Invention is credited to Youngbae Park, Prasad V. Venugopal, James Alden Weaver.
Application Number | 20210185801 16/716438 |
Document ID | / |
Family ID | 1000004560139 |
Filed Date | 2021-06-17 |
United States Patent
Application |
20210185801 |
Kind Code |
A1 |
Park; Youngbae ; et
al. |
June 17, 2021 |
ADJUSTABLE MOUNT FOR CONTACTING PROBES TO A DENSE PATTERN OF PADS
IN A CIRCUIT BOARD
Abstract
Embodiments described herein relate to a system. The system may
include a base configured to be removably coupled to an electrical
component. The base may include a first plurality of crossbar
alignment features arranged in a first pattern. The system may also
include a crossbar configured to be removably coupled to the base
using a portion of the first plurality of crossbar alignment
features. The crossbar may include a first plurality of adapter
plate alignment features arranged in a second pattern. The system
may also include an adapter plate configured to be removably
coupled to the crossbar using a subset of the first plurality of
adapter plate alignment features. The adapter plate may include a
plurality of measurement device mounting features.
Inventors: |
Park; Youngbae; (Milpitas,
CA) ; Weaver; James Alden; (Palo Alto, CA) ;
Venugopal; Prasad V.; (Cupertino, CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Arista Networks, Inc. |
Santa Clara |
CA |
US |
|
|
Family ID: |
1000004560139 |
Appl. No.: |
16/716438 |
Filed: |
December 16, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G01R 31/281 20130101;
H05K 1/0268 20130101; G01R 1/067 20130101 |
International
Class: |
H05K 1/02 20060101
H05K001/02; G01R 1/067 20060101 G01R001/067; G01R 31/28 20060101
G01R031/28 |
Claims
1. A system, comprising: a base comprising a base mounting feature
and configured to be removably coupled to an electrical component
by a base mounting member inserted within the base mounting feature
and a corresponding electrical component mounting feature to secure
the base to the electrical component, the base comprising a first
plurality of crossbar alignment features arranged in a first
pattern, wherein the base is in direct physical contact with the
electrical component; a crossbar configured to be removably coupled
to the base using a portion of the first plurality of crossbar
alignment features, the crossbar comprising a first plurality of
adapter plate alignment features arranged in a second pattern,
wherein the crossbar is in direct physical contact with the portion
of the first plurality of crossbar alignment features and the base;
and an adapter plate configured to be removably coupled to the
crossbar using a subset of the first plurality of adapter plate
alignment features, the adapter plate comprising a plurality of
measurement device mounting features, wherein the adapter plate is
in direct physical contact with the first plurality of adapter
plate alignment features and the crossbar.
2. The system of claim 1, wherein the base further comprises: a
plurality base corners; and a base corner comprising a first
placement feature and configured to cause a valid placement of the
base coupled to the electrical component.
3. The system of claim 1, wherein the base further comprises: a
first base component comprising a plurality of electrical component
mounting features and a plurality of second base component mounting
features; and a second base component configured to be removably
coupled to the first base component using the plurality of second
base component mounting features, the second base component
comprising the first plurality of crossbar alignment features.
4. The system of claim 3, wherein: the first base component further
comprises: a first plurality first base component corners; and a
first base component placement feature configured to cause a valid
placement of the first base component coupled to the electrical
component, and the second base component further comprises: a
second plurality second base component corners; and a second base
component placement feature configured to cause a valid alignment
of the second base component with the first base component.
5. The system of claim 1, wherein the base further comprises: a
second plurality of crossbar alignment features arranged in a third
pattern and configured to align the crossbar to electrical
component features of the electrical component that are to be
measured by a measurement device mounted to the adapter plate using
a portion of the plurality of measurement device mounting
features.
6. The system of claim 5, wherein the second plurality of crossbar
alignment features are a plurality of holes configured to align the
crossbar to the electrical component features using an alignment
member inserted into a first hole of the plurality of holes and
into a second hole in the crossbar.
7. The system of claim 1, wherein the crossbar further comprises: a
second plurality of adapter plate alignment features arranged in a
third pattern and configured to align the crossbar to electrical
component features of the electrical component that are to be
measured by a measurement device mounted to the adapter plate using
a portion of the plurality of measurement device mounting
features.
8. The system of claim 7, wherein the second plurality of adapter
plate alignment features are a plurality of holes configured to
align the adapter plate to the electrical component features using
an alignment member inserted into a first hole of the plurality of
holes and into a second hole in the adapter plate.
9. The system of claim 1, wherein the base, the crossbar, and the
adapter plate comprise a conductive material.
10. The system of claim 1, wherein a measurement device is
operatively coupled to the electrical component in a perpendicular
configuration by coupling the measurement device to the system
using the plurality of measurement device mounting features.
11. The system of claim 10, wherein the measurement device
comprises a spring loaded tip for the operative coupling to the
electrical component.
12. The system of claim 10, wherein the measurement device is
configured to measure a signal integrity between a plurality of
measurement locations of the electrical component.
13. The system of claim 1, wherein the electrical component
includes a printed circuit board (PCB).
14. The system of claim 1, wherein the electrical component
comprises a plurality of measurement locations arranged in a grid
pattern.
15. The system of claim 1, wherein the base is removably coupled to
the electrical component using a plurality of heatsink mounting
locations of the electrical component.
16. The system of claim 1, wherein the first plurality of crossbar
alignment features each comprise two distal ends having a distance
between the two distal ends that is greater than a diameter of a
member configured to removably couple the crossbar to the base.
17. The system of claim 1, wherein the first plurality of adapter
plate alignment features each comprise two distal ends having a
distance between the two distal ends that is greater than a
diameter of a member configured to removably couple the adapter
plate to the crossbar.
18. The system of claim 1, wherein the base is one shape selected
from a group of shapes consisting of a rectangle and a square.
19. The system of claim 1, wherein the base is a single
component.
20. The system of claim 19, wherein the crossbar has a first length
configured to allow the crossbar to be removably coupled to the
base in a first orientation, and the system further comprises a
second crossbar having a second length configured to allow the
second crossbar to be removably coupled to the base in a second
orientation.
Description
BACKGROUND
[0001] Electrical components (e.g., circuit boards) often have
locations suitable for mounting other electrical components (e.g.,
integrated circuitry packages). Such locations may, for example, be
referred to as pads, and may provide electrical connection points
between the circuit board and the attached electrical component.
Electrical signals may pass between the pad locations via signal
paths within the electrical component. It may be useful to test the
signal path between the pad locations. However, it may be difficult
for existing apparatuses (e.g., probes) to be attached to the pads
in a secure, reliable, and controlled manner while also having the
flexibility to be located to test the signal between any set of pad
locations on the circuit board.
SUMMARY
[0002] In general, in one aspect, embodiments described herein
relate to a system.
[0003] In one or more embodiments, the system includes a base
configured to be removably coupled to an electrical component. In
one or more embodiments, the base includes a first plurality of
crossbar alignment features arranged in a first pattern. In one or
more embodiments, the system also includes a crossbar configured to
be removably coupled to the base using a portion of the first
plurality of crossbar alignment features. In one or more
embodiments, the crossbar includes a first plurality of adapter
plate alignment features arranged in a second pattern. In one or
more embodiments, the system also includes an adapter plate
configured to be removably coupled to the crossbar using a subset
of the first plurality of adapter plate alignment features. In one
or more embodiments, the adapter plate includes a plurality of
measurement device mounting features.
[0004] Other aspects of the embodiments disclosed herein will be
apparent from the following description and the appended
claims.
BRIEF DESCRIPTION OF DRAWINGS
[0005] FIG. 1 shows a system in accordance with one or more
embodiments described herein.
[0006] FIG. 2 shows mounting features in accordance with one or
more embodiments described herein.
[0007] FIG. 3 shows base components in accordance with one or more
embodiments described herein.
[0008] FIG. 4 shows electrical component coupling features in
accordance with one or more embodiments described herein.
[0009] FIG. 5 shows base features in accordance with one or more
embodiments described herein.
[0010] FIG. 6 shows base components with a crossbar and adapter
plate in accordance with one or more embodiments described
herein.
[0011] FIG. 7 shows a perspective view of base components with
attachment members in accordance with one or more embodiments
described herein.
[0012] FIG. 8 shows a perspective view of base components with
attachment members in accordance with one or more embodiments
described herein.
[0013] FIG. 9 shows a perspective view of a crossbar and adapter
plate with attachment members in accordance with one or more
embodiments described herein.
[0014] FIG. 10 shows a perspective view of a crossbar and adapter
plate with attachment members in accordance with one or more
embodiments described herein.
[0015] FIG. 11 shows a perspective view of adapter plate alignment
features in accordance with one or more embodiments described
herein.
[0016] FIG. 12 shows a perspective view of a single piece base in
accordance with one or more embodiments described herein.
[0017] FIG. 13 shows a perspective view of a system in accordance
with one or more embodiments described herein.
[0018] FIG. 14 shows a perspective view of a system in accordance
with one or more embodiments described herein.
[0019] FIG. 15 shows a perspective view of base alignment features
in accordance with one or more embodiments described herein.
DETAILED DESCRIPTION
[0020] Specific embodiments will now be described with reference to
the accompanying figures. In the following description, numerous
details are set forth as examples. It will be understood by those
skilled in the art, and having the benefit of this Detailed
Description, that one or more embodiments described herein may be
practiced without these specific details and that numerous
variations or modifications may be possible without departing from
the scope of the embodiments. Certain details known to those of
ordinary skill in the art may be omitted to avoid obscuring the
description.
[0021] In the following description of the figures, any component
described with regard to a figure, in various embodiments, may be
equivalent to one or more like-named components shown and/or
described with regard to any other figure. For brevity,
descriptions of these components may not be repeated with regard to
each figure. Thus, each and every embodiment of the components of
each figure is incorporated by reference and assumed to be
optionally present within every other figure having one or more
like-named components. Additionally, in accordance with various
embodiments described herein, any description of the components of
a figure is to be interpreted as an optional embodiment, which may
be implemented in addition to, in conjunction with, or in place of
the embodiments described with regard to a corresponding like-named
component in any other figure.
[0022] Throughout the application, ordinal numbers (e.g., first,
second, third, etc.) may be used as an adjective for an element (i.
e., any noun in the application). The use of ordinal numbers is not
to imply or create any particular ordering of the elements nor to
limit any element to being only a single element unless expressly
disclosed, such as by the use of the terms "before", "after",
"single", and other such terminology. Rather, the use of ordinal
numbers is to distinguish between the elements. By way of an
example, a first element is distinct from a second element, and the
first element may encompass more than one element and succeed (or
precede) the second element in an ordering of elements.
[0023] As used herein, the phrase operatively connected, or
operative connection, means that there exists between
elements/components/devices a direct or indirect connection that
allows the elements to interact with one another in some way. For
example, the phrase `operatively connected` may refer to any direct
(e.g., wired directly between two devices or components) or
indirect (e.g., wired and/or wireless connections between any
number of devices or components connecting the operatively
connected devices) connection. Thus, any path through which
information may travel may be considered an operative
connection.
[0024] Additionally, directional words (e.g., top, bottom, above,
below, right, left, x-direction, y-direction, etc.) may be used as
an adjective to a noun or as a relative location of an element or
component. The use of directional words is not meant to imply any
required orientation within any two dimensional plane or three
dimensional space. For example, the use of the words "top" and
"bottom" are meant to convey relative positions (e.g., as shown in
a figure), rather than any fixed position. The use of such words
may instead convey a spatial relationship between a component and
some other component.
[0025] In general, embodiments described herein relate to an
adjustable mount for mounting electrical probes to various pad
locations of a circuit board. Specifically, in one or more
embodiments, a modular system of components allows for location of
probe tips of a measurement device at a large variety of locations
in a manner that is secure, reliable, and controlled while allowing
for adjustments to place the probe tips at any of a variety of
locations on the circuit board using the same apparatus. In one or
more embodiments, the system is configured to allow for testing of
connectivity of the circuitry and/or the signal integrity of a
signal path.
[0026] In one or more embodiments, to probe the electrical
circuitry of a circuit board (e.g., a printed circuit board (PCB)),
a probe can be used. As an example, a circuit tester can be used by
touching its probe tips to exposed circuitry such as an etched pad,
solder ball or component for the debug of electrical circuitry of a
PCB or a printed circuit assembly (PCA). In one or more
embodiments, if the probing is used to check the signal integrity
(i.e., not just simple connectivity of the circuitry) more
complicated design of the probing is required to establish secure,
reliable and controlled electrical connection to the probe.
[0027] In one or more embodiments, a common method used for such
probing is to hold the probe in a holder that can be precisely
adjusted, allowing for careful location of the probe tips. In one
or more embodiments, testers often use a microscope or magnifying
glass to locate the fine tip of the probe properly. Also, it may be
necessary to have a slight spring loading to the fine tip of the
probe so that the electrical connection can be made in a reliable
manner Additionally, the location of the probe and the fixture of
the setup should be done with extra caution because any unwanted
movement can damage the board or probe, and also can hinder proper
measurement. In one or more embodiments, the probe and contact
point of a circuit board are small, making reliable contact
difficult.
[0028] In some scenarios, a jig can be designed which mates the
circuit board and the probe in a predefined location precisely.
Such jig may provide precise and secure mating between the probe
and the circuit board, but the probe mates to a predefined location
dictated by the jig.
[0029] As an example, in the case of a high-speed network switching
system, switch chips are implemented as a land grid array package
(LGA), which may have thousands of contact points to the circuit
board, and the circuit board has a grid of copper pads which meet
with the contact points on the LGA. The electrical connection is
made by surface mount technology (SMT). In such an example, the
switch chip may have a high speed signal transfer with each pad.
For validation of the design and the debugging, it may be required
to measure the electrical performance of the board using a probe
contacting the pads on the circuit board, prior to mounting the
LGA.
[0030] As discussed above, the pad is small, and the probe tip is
small. Due to electrical test requirements, the probe should be
precisely located to the circuit board. However, at the same time,
there are thousands of the pads in the board. In a typical test,
the probes need to be located to the some of the pads, but the
desired location may not be well pre-defined and might be defined
during the test. Aligning the probe to the pad manually each time
may be very time consuming, and may require extra caution, but
still the probe can be easily damaged, causing the test result to
be incorrect. Using a jig may solve the alignment and handling
issue, but it is impractical to prepare thousands of jigs of the
type shown to cover each potential measuring location. Accordingly,
a solution is needed to properly connect the probe tips to the test
locations that is adjustable to allow for testing of a variety of
locations on a circuit board without requiring a vast quantity of
jigs to facilitate the testing. In one or more embodiments, the
modular implementation of embodiments described herein allow for
precise placement of probe tips in any of a variety of locations of
an x-y grid of possible measurement locations using the same
modular apparatus without requiring the thousands of jigs that may
otherwise be necessary to accomplish the goals of testing a circuit
board.
[0031] FIG. 1 shows a system (100) in accordance with one or more
embodiments described herein. As shown in FIG. 1, the system
includes a first base component (102), a second base component
(104), a crossbar (106), an adapter plate (108), an electrical
component (110), a measurement device (112), first crossbar
alignment features (114), second crossbar alignment features (116),
an alignment feature (118), first adapter plate alignment features
(120), first adapter plate alignment features (120), second base
component mounting features (124), and first base component
mounting features (122). Each of these components is described
below.
[0032] In one or more embodiments, an electrical component (110) is
any component that is capable of having electrical signal(s)
traverse from one location to another location on the electrical
component. In one or more embodiments, an electrical component
(110) is a circuit board. In one or more embodiments, a circuit
board is any structure that is configured to provide electrical
connections between and/or within components (e.g., circuit
components, integrated circuitry packages, etc.) that are attached
in any way to the circuit board. In one or more embodiments, a
circuit board may also provide mechanical support for any such
components (e.g., within a computing device, network device, etc.).
A non-limiting example of a circuit board is referred to as a
printed circuit board (PCB).
[0033] In one or more embodiments, a computing device is any device
or any set of devices that includes circuitry. Specifically, as
used herein, a computing device is any device or set of devices
that includes any integrated circuitry packages attached in any way
to any one or more circuit boards. As an example, a computing
device may be any device capable of electronically processing
instructions and that includes, at least, one or more processors
(e.g., integrated circuitry), any amount of volatile or
non-volatile memory or storage, and/or any number of input and
output device(s).
[0034] Examples of computing devices include, but are not limited
to, a server (e.g., a blade-server in a blade-server chassis, a
rack server in a rack, etc.), a desktop computer, a mobile device
(e.g., laptop computer, smart phone, personal digital assistant,
tablet computer, and/or any other mobile computing device), a
network device (e.g., a multilayer switch, a router, a bridge,
etc.), a storage device, a media device (e.g., televisions), and/or
any other type of computing device.
[0035] Such a computing device may include any number of electrical
components (110) (e.g., circuit boards), each attached to any
number of integrated circuitry packages, with the circuit boards
and integrated circuitry packages arranged in any configuration. As
an example, computing devices often include a type of circuit board
referred to as a motherboard, to which integrated circuitry
packages are connected. Other circuit boards (e.g., expansion
cards, daughter boards, etc.) may also be connected to a
motherboard, and may further be connected to additional integrated
circuitry packages. All or any portion of the collection of circuit
boards and integrated circuitry packages, along with any other
computing device components, may collectively operate to perform
any or all of the intended function of the computing device (e.g.,
process network traffic).
[0036] In one or more embodiments, a circuit board includes circuit
board layers (not shown). In one or more embodiments, a circuit
board may include any number of layers. Each layer may have any
thickness and may be constructed of any material(s).
[0037] As an example, the circuit board may be a PCB. In one or
more embodiments, a PCB is a circuit board that includes a number
of layers attached to one another. At least some of the layers may
be conductive layers, which may be constructed from any conductive
material, and which may be separated from one another by any number
of non-conductive layers (e.g., a substrate) of any non-conductive
material. One non-limiting example of a conductive material within
a conductive layer is copper. One non-limiting example of a
non-conductive material in a non-conductive layer is fiber glass.
Other types of conductive and/or non-conductive materials may be
included in circuit board layers without departing from the scope
of embodiments described herein.
[0038] The layers of a circuit board may include any number of
other layers of any type. For example, the circuit board may have a
top layer that may be referred to as a solder mask or solder
resist, which functions to help prevent shorts between solder
locations at which integrated circuitry packages are attached to
the circuit board. As another example, a PCB may include a layer,
such as a silkscreen layer, on top of the solder mask layer that
includes, for example, printed information relating to
identification of components and/or locations on the circuit
board.
[0039] In one or more embodiments, within conductive layers of the
circuit board are conductive traces (not shown), which provide at
least a portion of signal propagation paths through which
electricity may propagate from one portion of the circuit board to
another within the conductive layer. In one or more embodiments, a
signal propagation path is a conductive path through which
electricity propagates. There may be any number of such traces in
any conductive layer of a circuit board.
[0040] In one or more embodiments, the circuit board traces operate
as wires that are fixed in place within a given conductive layer of
a circuit board. In one or more embodiments, the traces are
separated from other portions of the conductive layer and/or from
portions of other conductive layers via an insulator (e.g., air,
fiber glass, etc.). In one or more embodiments, other portions
within a conductive layer of a circuit board are used for any other
purpose, such as, for example, electromagnetic shielding.
[0041] Circuit board traces may provide at least a portion of a
signal propagation path for any type of electrical signal. Examples
of such electrical signals include, but are not limited to, power
signals, ground signals, or any signal that conveys any
information, or any portion of any information. For example, a
signal may be a signal that alternates between a higher and lower
level of signal (e.g., two voltage levels), which may be
interpreted as a binary signal and that conveys some form of
information. As another example, the signal may be an analog
signal, in which some signal feature (voltage, current, phase,
etc.) may be used to convey potentially changing information (e.g.,
pressure, velocity, temperature, etc.). As another example, two or
more signals may be paired together, with the information being
conveyed to a receiver by a relative difference between one or more
signal properties of the signals.
[0042] In one or more embodiments, though not shown in FIG. 1 for
the sake of clarity, the electrical component has a grid (i. e., an
array) of contact points arranged in a specific pattern, that allow
for making an electrical connection to the electrical component
(e.g., by an integrated circuitry package, a probe, etc.)
[0043] In one or more embodiments, the first base component (102)
is any component of any shape and material that is configured to be
removably coupled to an electrical component (e.g., a circuit
board). In one or more embodiments, the first base component (102)
is constructed of a conductive material, such as a metal (e.g.,
aluminum). In one or more embodiments, the first base component
(102) includes first base component mounting features (122). In one
or more embodiments, first base component mounting features (122)
are configured to allow the mounting of the system (100), and more
specifically the first base component (102), to the electrical
component (110). For example, as shown in FIG. 1, first base
component mounting features (122) may be tabs in which holes are
located to allow for insertion of a member that allows the first
base component (102) to be removably coupled to an electrical
component (110). For example, the holes may be screw holes that
allow for insertion of a screw that screws into electrical
component mounting features (discussed further in the description
of FIG. 2, below). Such a screw may secure the first base component
(102) to the electrical component (110).
[0044] In one or more embodiments, the system (100) also includes a
second base component (104). In one or more embodiments, a second
base component (104) is any component of any shape and material
that is configured to be removably coupled to the first base
component (102). In one or more embodiments, the second base
component (104) is constructed of a conductive material, such as a
metal (e.g., aluminum). In one or more embodiments, the second base
component (104) is removably coupled to the first base component
(102) using second base component mounting features (124). In one
or more embodiments, the second base component mounting features
(124) are configured to align with corresponding features on the
first base component (102). For example, the second base component
mounting features (124) may be screw holes that align with
corresponding screw holes of the first base component (102),
thereby allowing the second base component (104) to be removably
coupled to the first base component (102) using a set of screws of
an appropriate size.
[0045] In one or more embodiments, the second base component (104)
includes first crossbar alignment features (114). In one or more
embodiments, the first crossbar alignment features (114) are
configured to allow a crossbar (106) (discussed below) to be
removably coupled to the second base component (104). For example,
the first crossbar alignment features (114) may be screw holes into
which screws may be screwed to couple a crossbar (106) to the
second base component (104).
[0046] In one or more embodiments, the second base component (104)
includes second crossbar alignment features (116). In one or more
embodiments, the second crossbar alignment features (116) are
smaller holes than the first crossbar alignment features (114), and
may allow for members (e.g., pins) to be inserted in the second
crossbar alignment features (116) and into corresponding holes in a
crossbar (106) to allow for a more fine grained alignment of the
crossbar (106) with pad locations of an electrical component (110)
(e.g., a circuit board). In one or more embodiments, the
combination of the first crossbar alignment features (114) and the
second crossbar alignment features (116) allow for precisely
placing the crossbar (106) in a location that allows for probe tip
placement at locations where testing of a signal propagation path
is desired. In one or more embodiments, the first and/or second
crossbar alignment features (114, 116) are spaced at an interval
that is related (e.g., the same) to the spacing of the locations on
the electrical component (110) between which an electrical signal
may propagate (i. e., a signal propagation path).
[0047] In one or more embodiments, the system (100) includes a
crossbar (106). In one or more embodiments, a crossbar (106) is a
structure configured to cross from one side of the base components
(102, 104) to the other side of the base components. As shown in
FIG. 1, the crossbar (106) spans from the left side of the second
base component (104) to the right side of the second base
component. However, one having ordinary skill in the art, and the
benefit of this Detailed Description, will appreciate that the
crossbar (106) could instead span from the top of the second base
component (104) to the bottom of the second base component (104)
(i.e., perpendicular to the orientation shown in FIG. 1). In one or
more embodiments, when the base components (102, 104) have sides of
substantially the same length, the same crossbar (106) may be used
in either direction, as the length necessary to span from one side
to the other is the same. In one or more embodiments, a crossbar
(106) is constructed in any shape using any material, and is
configured to be removably coupled to the second base component
(104). In one or more embodiments, the crossbar (106) is
constructed of a conductive material, such as a metal (e.g.,
aluminum).
[0048] In one or more embodiments, the crossbar (106) includes
first adapter plate alignment features (120). In one or more
embodiments, the first adapter plate alignment features (120) are
configured to allow an adapter plate (108) (discussed below) to be
removably coupled to the crossbar. For example, the first adapter
plate alignment features (120) may be screw holes into which screws
may be screwed to couple an adapter plate (108) to a crossbar
(106). Although not shown in FIG. 1, the crossbar (106) may further
include second adapter plate alignment features. In one or more
embodiments, the second adapter plate alignment features are
smaller holes than the first adapter plate alignment features
(120), and may allow for members (e.g., pins) to be inserted in the
second adapter plate alignment features and into corresponding
holes in an adapter plate (108) to allow for a more fine grained
alignment of the alignment plate (108) with pad locations of an
electrical component (110).
[0049] In one or more embodiments, the combination of the first
adapter plate alignment features (120) and the second adapter plate
alignment features (not shown) allow for precise placement of the
adapter plate (108) in a location that allows for probe tip
placement at locations where testing of a signal propagation path
is desired. In one or more embodiments, the first and/or second
adapter plate alignment features are spaced at an interval that is
related (e.g., the same) to the spacing of the locations on the
electrical component between which an electrical signal may
propagate (i.e., a signal propagation path).
[0050] In one or more embodiments, the system (100) includes an
adapter plate (108). In one or more embodiments, an adapter plate
(108) is a structure configured to span from one side of the
crossbar (106) to the other side of the crossbar. In one or more
embodiments, an adapter plate (108) is constructed in any shape
using any material, and is configured to be removably coupled to
the crossbar using the first and second adapter plate alignment
features to position the adapter plate at a location along the
crossbar relative to contact points of the electrical component
between which a signal path is to be tested. In one or more
embodiments, the adapter plate (108) is constructed of a conductive
material, such as a metal (e.g., aluminum).
[0051] In one or more embodiments, the system (100) is coupled to a
measurement device (112). In one or more embodiments, a measurement
device (112) is any device capable of measuring electrical
properties (e.g., connectivity, signal integrity, etc.) of a signal
path between two contact points of an electrical component (110).
In one or more embodiments, the measurement device (112) includes
two probe tips configured to make contact with contact points of
the electrical component (110). In one or more embodiments, the
measurement device (112) is oriented substantially perpendicular to
the electrical component (110), which may help avoid damage to the
probe tips of the measurement device. In one or more embodiments,
the probe tips of the measurement device (112) are spring-loaded to
help ensure proper contact with the contact points of the
electrical component (110). In one or more embodiments, the
measurement device (112) is removably coupled to the adapter plate
(108). For example, the measurement device (112) may include a
bottom portion configured with one or more screw holes that
correspond to screw holes in the adapter plate (108) by which the
measurement device (112) may be secured to the adapter plate (108)
using one or more screws. In one or more embodiments, as shown in
FIG. 1, a measurement device (112) includes features that allow for
connecting additional measurement (e.g., multimeter) related
equipment to the measurement device (112).
[0052] While FIG. 1 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 1.
[0053] FIG. 2 shows an electrical component (200) in accordance
with one or more embodiments described herein. As shown in FIG. 2,
the electrical component (200) includes electrical component
mounting features (202). To avoid obscuring the electrical
component mounting features (202), the grid of contact points of
the electrical component (200) are not shown in FIG. 2. In one or
more embodiments, the electrical component mounting features (202)
are configured to allow a base, or portion thereof (e.g., first
base component (102) of FIG. 1), to be removably coupled to the
electrical component (200). In one or more embodiments, the
electrical component mounting features (202) are holes into which
members may be inserted to secure a base, or portion thereof, to
the electrical component (200). In one or more embodiments, the
electrical component mounting features (202) are screw holes to
allow the use of screws to removably couple the base, or portion
thereof, to the electrical component (200). In one or more
embodiments, the electrical component mounting features (202) are
holes for inserting pegs that are part of a base, or portion
thereof. Other types of attachment recesses may be used without
departing from the scope of embodiments described herein. As a
non-limiting example, the electrical component mounting features
(202) may be heat sink holes that are intended to allow one or more
heat sinks to be coupled to the electrical component (200). There
may be any number of electrical component mounting features (202)
on the electrical component at any location.
[0054] While FIG. 2 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 2.
[0055] FIG. 3 shows a base in accordance with one or more
embodiments described herein. Other components of the system to
which the base belongs are not shown in FIG. 3 in order to more
clearly show the base. As shown in FIG. 3, the base includes a
first base component (300) that is substantially similar to the
first base component discussed above in the description of FIG. 1.
As such, in one or more embodiments, the first base component (300)
is configured to be removably coupled to an electrical component
(not shown) using first base component mounting features (308)
(e.g., screws, pegs, etc.). Only one first base component mounting
feature (308) is called out in FIG. 3 for the sake of clarity.
However, as shown in FIG. 3, the first base component (300) has
four such first base component mounting features (308), located
near the inner corners of the first base component (300). One
having ordinary skill in the art and the benefit of this Detailed
Description, will appreciate that the first base component (300)
may have any number of first base component mounting features (308)
for mounting the first base component (300) to the electrical
component (not shown) without departing from the scope of
embodiments described herein.
[0056] In one or more embodiments, the first base component (300)
is also configured to be removably coupled to the second base
component (302) using second base component mounting features
(310). In one or more embodiments, the second base component
mounting features (310) are substantially similar to the second
base component mounting features (124) discussed above in the
description of FIG. 1. As such, in one or more embodiments, the
second base component mounting features (310) are holes that
correspond positionally to holes in the first base component (300),
and allow for the use of members (e.g., screws) inserted into the
holes to removably couple the second base component (302) to the
first base component (300). In one or more embodiments, the second
base component (302) includes first crossbar alignment features
(304). In one or more embodiments, the first crossbar alignment
features (304) shown in FIG. 3 are substantially similar to the
first crossbar alignment features (114) discussed above in the
description of FIG. 1. As such, the first crossbar alignment
features (304) may be a series of holes whose positioning is
designed to allow accurate placement of a crossbar (not shown)
relative to contact points on an electrical component (not
shown).
[0057] In one or more embodiments, the second base component (302)
includes second crossbar alignment features (306). In one or more
embodiments, the second crossbar alignment features (306) shown in
FIG. 3 are substantially similar to the second crossbar alignment
features (116) discussed above in the description of FIG. 1. As
such, the second crossbar alignment features (306) may be a series
of holes whose positioning is designed to allow accurate placement
of a crossbar (not shown) relative to contact points on an
electrical component (not shown). In one or more embodiments, the
second crossbar alignment features (306) are smaller than the first
crossbar alignment features, and are placed closer together, which
may allow, when used in conjunction with the first crossbar
alignment features, for more fine-grained placement of the crossbar
relative to contact points on an electrical component.
[0058] While FIG. 3 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein.
[0059] Accordingly, embodiments disclosed herein should not be
limited to the configuration of components shown in FIG. 3.
[0060] FIG. 4 shows the reverse side of a base (400) in accordance
with one or more embodiments described herein. Although FIG. 4
shows a single base (400) piece, which may exist in some
embodiments, the base (400) shown in FIG. 4 may be a first base
component, as described above in the descriptions of FIG. 1 and
FIG. 3. As shown in FIG. 4, the base (400) includes electrical
component coupling features (402). In one or more embodiments, as
shown in FIG. 4, the electrical component coupling features (402)
are pegs. In such embodiments, the pegs may be configured to be
inserted into electrical component mounting features (not shown),
such as electrical component mounting features (202) shown in FIG.
2. While FIG. 4 shows the electrical component coupling features
(402) as pegs, one having ordinary skill in the art and the benefit
of this Detailed Description, will appreciate that any other form
of electrical component coupling features (402) capable of securing
a base (400), or portion thereof, to an electrical component (not
shown) may be used without departing from the scope of embodiments
described herein. For example, the electrical component coupling
features (402) may be openings into which screws may be inserted to
screw the base (400), or portion thereof, to the electrical
component.
[0061] While FIG. 4 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 4.
[0062] FIG. 5 shows a base having a first base component (500) and
a second base component (504) mounted to an electrical component
(502). For the sake of clarity, the contact points of the
electrical component (502) are not shown in FIG. 5. Similarly, for
the sake of clarity, FIG. 5 does not show the members that are used
to secure the base to the electrical component (502). In the
embodiment shown in FIG. 5, the first base component mounting
features are shown as holes. In such embodiments, screws inserted
from the rear of the electrical component (502) may be used to
screw into the first base component mounting features to secure the
base to the electrical component.
[0063] While FIG. 5 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 5.
[0064] FIG. 6 shows a crossbar (606) counted to a second base
component (604) and an adapter plate (608) mounted to the crossbar
(606) in accordance with one or more embodiments described herein.
As shown in FIG. 6, the portion of the system shown includes an
electrical component (600), a first base component (602), a second
base component (604), a crossbar (606), and an adapter plate (608).
Each of these components is described below.
[0065] The electrical component (600), the first base component
(602), the second base component (604), the crossbar (606), and the
adapter plate (608) shown in FIG. 6 are substantially similar to
like named components described above. FIG. 6 is intended to show
these components assembled to be removably coupled to one another
in accordance with one or more embodiments.
[0066] As shown in FIG. 6, the first base component (602) is
removably coupled to the electrical component (600) using the first
base component mounting features coupled to the electrical
component mounting features. Also as shown in FIG. 6, the first
base component (602) is removably coupled to the second base
component (604) using the second base component mounting features
(not shown) coupled to corresponding features on the first base
component (602). For the sake of clarity, members providing such
couplings, such as screws, are not shown in FIG. 6.
[0067] In one or more embodiments, the crossbar (606) is coupled to
the second base component (604) using the first crossbar alignment
features, with screws being shown as the member, in this particular
embodiment, as the items used to provide the said coupling.
Specifically, the screws are inserted into holes in the crossbar
(606) and screwed into the first crossbar alignment features to
secure the crossbar (606) to the second base component (604).
[0068] In one or more embodiments, the adapter plate (608) is
coupled to the crossbar (606) using the first adapter plate
alignment features, with screws being shown as the member, in this
particular embodiment, as the items used to provide the said
coupling. Specifically, the screws are inserted into the first
adapter plate alignment features and screwed into corresponding
features on the adapter plate to secure the adapter plate (608) to
the crossbar (606).
[0069] While FIG. 6 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 6.
[0070] FIG. 7 shows a closer view of the coupling of the crossbar
to the second base component (702) in accordance with one or more
embodiments described herein. Specifically, FIG. 7 shows a portion
of a first base component (700), which is coupled to a second base
component (702). FIG. 7 also shows the crossbar-to-base members
(704) used to removably couple the crossbar to the second base
component (702). In the embodiment shown in FIG. 7, the
crossbar-to-base member (704) is shown as a screw. Other types of
coupling members may be used without departing from the scope of
embodiments described herein. Also as shown in FIG. 7, each opening
in the crossbar through which the crossbar-to-base member (704) is
inserted is shown as having a shape with two distal ends (706). The
shape of the opening is shown as such to illustrate that the
crossbar-to-base member (704) may be positioned at any location
within said opening, allowing for flexible adjustment of the
position of the crossbar to better align with the underlying first
crossbar alignment features of the second base component.
[0071] While FIG. 7 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 7.
[0072] FIG. 8 shows another closer view of the coupling of the
crossbar (804) to the second base component (802) in accordance
with one or more embodiments described herein. Specifically, FIG. 8
shows a transparent view of the crossbar (804), thereby revealing
the second crossbar alignment features (808) in the second base
component (802), which is coupled to the first base component
(800). In one or more embodiments, the second crossbar alignment
features (808) are smaller and placed close to one another than the
first crossbar alignment features (806). In one or more
embodiments, a crossbar alignment member (810) (e.g., a cylindrical
pin) is placed with one end within at least one of the second
crossbar alignment features (808), and the other end within
corresponding features in the crossbar (804) itself. Such second
crossbar alignment features (808) may allow for more fine-grained
placement of the crossbar (804) relative to the contact points of
the electrical component (not shown) to which the first base
component (800) is mounted.
[0073] While FIG. 8 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 8.
[0074] FIG. 9 shows a closer view of the coupling of the adapter
plate (908) to the crossbar (900) in accordance with one or more
embodiments described herein. Specifically, FIG. 9 shows a portion
of a crossbar (900), which is coupled to an adapter plate (908).
FIG. 9 also shows the adapter plate-to-crossbar members (910) used
to removably couple the adapter plate (908) to the crossbar (900).
In the embodiment shown in FIG. 9, the adapter plate-to-crossbar
members (910) are shown as screws. Other types of coupling members
may be used without departing from the scope of embodiments
described herein. Also as shown in FIG. 9, each opening in the
crossbar (900) through which the adapter plate-to-crossbar members
(910) are inserted is shown as having a shape with two distal ends.
The shape of the opening is shown as such to illustrate that the
adapter plate-to-crossbar member (910) may be positioned at any
location within said opening, allowing for flexible adjustment of
the position of the adapter plate (908) to better align with the
underlying first adapter plate alignment features (902) of the
crossbar. FIG. 9 also shows a portion of the first crossbar
alignment features (904) and the second crossbar alignment features
(906), which are discussed in greater detail above.
[0075] While FIG. 9 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 9.
[0076] FIG. 10 shows another closer view of the coupling of the
adapter plate (1006) to the crossbar (1004) in accordance with one
or more embodiments described herein. Specifically, FIG. 10 shows a
transparent view of the crossbar (1004), thereby revealing the
coupling, via the first adapter plate alignment features (1010) of
the crossbar (1004), the adapter plate (1006) to the crossbar
(1004) via the adapter plate-to-crossbar members. Also shown again
are the second adapter plate alignment features (1008), the first
crossbar alignment features (1000), the second crossbar alignment
features (1002), and the distal ends of the first adapter plate
alignment features (1012).
[0077] While FIG. 10 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 10.
[0078] FIG. 11 shows another closer view of the coupling of the
adapter plate (1106) to the crossbar in accordance with one or more
embodiments described herein. FIG. 11 again shows the crossbar, the
adapter plate (1106), the first adapter plate alignment features,
and the second adapter plate alignment features (1102).
Specifically, FIG. 10 shows the second adapter plate alignment
features (1102) in the crossbar, which is coupled to the adapter
plate (1106). In one or more embodiments, the second adapter plate
alignment features (1102) are smaller and placed close to one
another than the first adapter plate alignment features. In one or
more embodiments, an adapter plate alignment member (1100) (e.g., a
cylindrical pin) is placed with one end within the second adapter
plate alignment features (1102), and the other end within
corresponding features in the adapter plate (1106) itself. Such
second adapter plate alignment features (1102) may allow for more
fine-grained placement of the adapter plate (1106) relative to the
contact points of the electrical component (not shown) to which the
first base component is mounted.
[0079] While FIG. 11 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 11.
[0080] FIG. 12 shows an alternate embodiment of the system of FIG.
1 in accordance with one or more embodiments described herein. As
shown in FIG. 1, the system again includes first crossbar alignment
features (1202), second crossbar alignment features (1204), first
adapter plate alignment features (1208), and a measurement device
(1206), each of which are substantially similar to like-named
devices discussed above in the description of FIG. 1. Additionally,
FIG. 12 shows a base (1200). In one or more embodiments, the system
shown in FIG. 12 differs from that shown in FIG. 1, at least,
because the base (1200) is a single piece of any shape and material
that is configured to be removably coupled to an electrical
component (e.g., a circuit board). In other words, the base (1200)
is only a single piece of the system, rather than including a first
base component and a second base component, as shown, for example,
in FIG. 1.
[0081] While FIG. 12 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 12.
[0082] FIG. 13 and FIG. 14 show an alternate system in accordance
with one or more embodiments described herein. Specifically, FIG.
13 and FIG. 14 each show a base (1300, 1400) that is a single piece
of any shape and material that is configured to be removably
coupled to an electrical component (e.g., a circuit board).
Additionally, the base (1300, 1400) as shown in FIG. 13 and FIG. 14
is shown as being substantially rectangular rather than
substantially square. Such a base (1300, 1400) may be useful, for
example, when the underlying electrical component on which the
system is to be mounted requires a different shape to fit properly.
In one or more embodiments, because the lengths of the sides of the
base (1300, 1400) differ, a set of system components to facilitate
the base would include two crossbars (1302, 1402), each to be used
when the crossbar is to be oriented in a direction with differing
length requirements. As shown in FIG. 13, the crossbar (1302) is
relatively longer to cross the distance from left to right of the
base, while FIG. 14 shows a crossbar (1402) that is relatively
shorter, to facilitate the shorter distance from top to bottom of
the base. In either case, in one or more embodiments, an adapter
plate (1304, 1404) is removably coupled to the crossbar (1302,
1402) in manners substantially similar to those described
above.
[0083] While FIG. 13 and FIG. 14 each show a configuration of
components, other configurations may be used without departing from
the scope of embodiments described herein. Accordingly, embodiments
disclosed herein should not be limited to the configuration of
components shown in FIG. 13 and/or FIG. 14.
[0084] FIG. 15 again shows a portion of a system in accordance with
one or more embodiments described herein. As shown in FIG. 15, the
system includes a first base component (1500), a second base
component (1502), a crossbar (1508), and an adapter plate (1510),
each of which is substantially similar to like-named components
discussed above in the description of FIG. 1. FIG. 15 is intended
to draw attention to an additional feature of the system.
Specifically, FIG. 15 shows a first base component alignment
feature (1504) and a second base component alignment feature
(1506). In one or more embodiments, the first base component
alignment feature (1504) is a feature of the first base component
(1500) that differs from other aspects of the first base component
(1500) in such a way as to allow for proper alignment of the first
base component (1500) on the electrical component (not shown) to
which the first base component (1500) is removably coupled. In the
example shown in FIG. 15, the first base component alignment
feature (1504) is a chamfered corner, which differs from the other
corners of the first base component (1500), which are not so
chamfered.
[0085] Such a first base component alignment (1504) feature may
allow for proper alignment of the first base component (1500)
relative to the electrical component (not shown) to which it is
coupled. Similarly, to help ensure that the second base component
(1502) is properly aligned relative to the first base component
(1500), the second base component (1502) may also include a second
base component alignment feature (1506). As shown in FIG. 15, the
second base component alignment feature (1506) is a chamfered
corner, which differs from the other corners of the second base
component (1502), which are not so chamfered. Such a second base
component alignment feature (1506) may allow for the second base
component (1502) to be properly aligned relative to the first base
component (1500) and, thereby, to the electrical component (not
shown). Although FIG. 15 shows the first base component alignment
feature (1504) and the second base component alignment feature
(1506) to be in the same corner of the respective base components,
one having ordinary skill in the art and the benefit of this
Detailed Description will appreciate that the base component
alignment features may or may not be co-located, and may take any
form for allowing proper alignment of the base components relative
to one another and to the electrical component.
[0086] While FIG. 15 shows a configuration of components, other
configurations may be used without departing from the scope of
embodiments described herein. Accordingly, embodiments disclosed
herein should not be limited to the configuration of components
shown in FIG. 15.
[0087] While embodiments described herein have been described with
respect to a limited number of embodiments, those skilled in the
art, having the benefit of this Detailed Description, will
appreciate that other embodiments can be devised which do not
depart from the scope of embodiments as disclosed herein.
Accordingly, the scope of embodiments described herein should be
limited only by the attached claims.
* * * * *