U.S. patent application number 15/938436 was filed with the patent office on 2019-04-04 for memory device.
The applicant listed for this patent is Silicon Motion, Inc.. Invention is credited to Sheng-Liu LIN.
Application Number | 20190103689 15/938436 |
Document ID | / |
Family ID | 65431820 |
Filed Date | 2019-04-04 |
United States Patent
Application |
20190103689 |
Kind Code |
A1 |
LIN; Sheng-Liu |
April 4, 2019 |
MEMORY DEVICE
Abstract
A memory device is provided. The memory device includes a
substrate, a first interface connector, a second interface
connector and a plurality of memory chips. The substrate includes a
first edge, a second edge, a third edge and a fourth edge. The
first interface connector is disposed on the first edge, wherein
the first interface connector includes a plurality of first
edge-board contacts, and the first edge-board contacts extend
toward a first direction. The second interface connector is
disposed on the second edge, the second interface connector
includes a plurality of second edge-board contacts, and the second
edge-board contacts extend toward a second direction. The memory
chips are disposed on the substrate, wherein the second interface
connector is located between the memory chips and the first
interface connector in the first direction.
Inventors: |
LIN; Sheng-Liu; (Hsinchu
City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Silicon Motion, Inc. |
Jhubei City |
|
TW |
|
|
Family ID: |
65431820 |
Appl. No.: |
15/938436 |
Filed: |
March 28, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H05K 2201/094 20130101;
H05K 2201/10522 20130101; G06F 1/00 20130101; H05K 2201/09418
20130101; H05K 2201/10159 20130101; H05K 1/181 20130101; H01R
12/7076 20130101; H05K 2201/10015 20130101; H05K 1/029 20130101;
H05K 2201/09409 20130101; H01R 12/721 20130101; H01R 12/737
20130101; H05K 1/117 20130101; H05K 2201/09163 20130101; H01R 27/00
20130101 |
International
Class: |
H01R 12/72 20060101
H01R012/72; H05K 1/11 20060101 H05K001/11; H05K 1/18 20060101
H05K001/18; H01R 12/73 20060101 H01R012/73; H01R 12/70 20060101
H01R012/70; H01R 27/00 20060101 H01R027/00 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 30, 2017 |
TW |
106133912 |
Claims
1. A memory device, comprising: a substrate, which comprises a
first edge, a second edge, a third edge and a fourth edge, wherein
the first edge is parallel to the third edge, the second edge is
parallel to the fourth edge, the first edge is perpendicular to the
second edge, and a length of the first edge is shorter than a
length of the second edge; a first interface connector, disposed on
the first edge, wherein the first interface connector comprises a
plurality of first edge-board contacts, and the first edge-board
contacts extend toward a first direction; a second interface
connector, disposed on the second edge, the second interface
connector comprises a plurality of second edge-board contacts, and
the second edge-board contacts extend toward a second direction;
and a plurality of memory chips, disposed on the substrate, wherein
the second interface connector is located between the memory chips
and the first interface connector in the first direction wherein
the first interface connector is adapted to be inserted into a
first interface slot, the second interface connector is adapted to
be inserted into a second interface slot, wherein the memory device
is selectively connects to the first interface slot or the second
interface slot.
2. The memory device as claimed in claim 1, wherein the memory
chips are arranged in the first direction.
3. The memory device as claimed in claim 2, wherein the substrate
comprises a first surface and a second surface, the first surface
is opposite to the second surface, the memory chips comprise at
least one first flash memory chip, and the first flash memory chip
is disposed on the first surface.
4. The memory device as claimed in claim 3, further comprising a
controller, wherein the controller is disposed on the first surface
of the substrate, the controller is located between the first flash
memory chip and the second interface connector in the first
direction.
5. The memory device as claimed in claim 4, wherein the memory
chips further comprise a DRAM chip, the DRAM chip is disposed on
the first surface of the substrate, the DRAM chip is located
between the first flash memory chip and the controller in the first
direction.
6. The memory device as claimed in claim 5, wherein the memory
chips comprise a plurality of first flash memory chips, the first
flash memory chips are disposed on the first surface and arranged
in the first direction, the first flash memory chips are located
between the DRAM chip and the third edge.
7. The memory device as claimed in claim 4, further comprising at
least one passive component, the passive component is located
between the controller and the first interface connector in the
first direction, and the passive component is located between the
second interface connector and the fourth edge in the second
direction.
8. The memory device as claimed in claim 7, wherein the passive
component is a capacitor.
9. The memory device as claimed in claim 4, further comprising a
plurality of passive components, the passive components are located
between the controller and the first interface connector in the
first direction, the passive components are located between the
second interface connector and the fourth edge in the second
direction, and the passive components are arranged in the first
direction.
10. The memory device as claimed in claim 3, wherein the memory
chips comprise a plurality of second flash memory chips, and the
second flash memory chips are disposed on the second surface and
are arranged in the first direction.
11. The memory device as claimed in claim 10, wherein the memory
chips further comprise a DRAM chip, the DRAM chip is disposed on
the second surface of the substrate, the DRAM chip and the second
flash memory chip are arranged in the first direction.
12. The memory device as claimed in claim 1, wherein the first
interface connector is an M.2 connector, and the second interface
connector is a PCIE connector.
13. The memory device as claimed in claim 1, wherein the second
interface connector has a connector height, the substrate has a
substrate height, and the connector height is smaller than half of
the substrate height.
14. The memory device as claimed in claim 1, wherein the substrate
is equally compartmentalized into an upper substrate part and a
lower substrate part in the second direction, and the second
interface connector is only located in the lower substrate part.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This Application claims priority of Taiwan Patent
Application No. 106133912, filed on Sep. 30, 2017, the entirety of
which is incorporated by reference herein.
BACKGROUND OF THE INVENTION
Field of the Invention
[0002] The present invention relates to a memory device, and in
particular to a memory device having two connectors of two
different interface standards.
Description of the Related Art
[0003] Conventional memory cards with M.2 interface connectors come
in three different sizes: 2242(22 mm.times.42 mm), 2260(22
mm.times.60 mm), and 2280(22 mm.times.80 mm). When the M.2
interface memory card is coupled to the PCIE slot, the M.2
interface memory card must connect to the adapter card first, and
is coupled to the PCIE slot via the adapter card. Due to market
demand, the adapter card is commonly bundled with the M.2 interface
memory card, and the commodity cost of the M.2 interface memory
card is therefore increased.
BRIEF SUMMARY OF THE INVENTION
[0004] In one embodiment, a memory device is provided. The memory
device includes a substrate, a first interface connector, a second
interface connector and a plurality of memory chips. The substrate
includes a first edge, a second edge, a third edge and a fourth
edge, wherein the first edge is parallel to the third edge, the
second edge is parallel to the fourth edge, the first edge is
perpendicular to the second edge, and the length of the first edge
is shorter than the length of the second edge. The first interface
connector is disposed on the first edge, wherein the first
interface connector comprises a plurality of first edge-board
contacts, and the first edge-board contacts extend toward a first
direction. The second interface connector is disposed on the second
edge, the second interface connector comprises a plurality of
second edge-board contacts, and the second edge-board contacts
extend toward a second direction. The memory chips are disposed on
the substrate, wherein the second interface connector is located
between the memory chips and the first interface connector in the
first direction.
[0005] In one embodiment, the memory chips are arranged in the
first direction.
[0006] In one embodiment, the substrate comprises a first surface
and a second surface, the first surface is opposite to the second
surface, the memory chips comprise at least one first flash memory
chip, and the first flash memory chip is disposed on the first
surface.
[0007] In one embodiment, the memory device further comprises a
controller, wherein the controller is disposed on the first surface
of the substrate, the controller is located between the first flash
memory chip and the second interface connector in the first
direction.
[0008] In one embodiment, the memory chips further comprise a DRAM
chip, the DRAM chip is disposed on the first surface of the
substrate, the DRAM chip is located between the first flash memory
chip and the controller in the first direction.
[0009] In one embodiment, the memory chips comprise a plurality of
first flash memory chips, the first flash memory chips are disposed
on the first surface and arranged in the first direction, the first
flash memory chips are located between the DRAM chip and the third
edge.
[0010] In one embodiment, the memory device further comprises at
least one passive component, the passive component is located
between the controller and the first interface connector in the
first direction, and the passive component is located between the
second interface connector and the fourth edge in the second
direction.
[0011] In one embodiment, the passive component is a capacitor.
[0012] In one embodiment, the memory device further comprises a
plurality of passive components, the passive components are located
between the controller and the first interface connector in the
first direction, the passive components are located between the
second interface connector and the fourth edge in the second
direction, and the passive components are arranged in the first
direction.
[0013] In one embodiment, the memory chips comprise a plurality of
second flash memory chips, and the second flash memory chips are
disposed on the second surface and are arranged in the first
direction.
[0014] In one embodiment, the memory chips further comprise a DRAM
chip, the DRAM chip is disposed on the second surface of the
substrate, the DRAM chip and the second flash memory chip are
arranged in the first direction.
[0015] In one embodiment, the first interface connector is an M.2
connector, and the second interface connector is a PCIE
connector.
[0016] In one embodiment, the second interface connector has a
connector height, the substrate has a substrate height, and the
connector height is smaller than half of the substrate height.
[0017] In one embodiment, the substrate is equally
compartmentalized into an upper substrate part and a lower
substrate part in the second direction, and the second interface
connector is only located in the lower substrate part.
[0018] Utilizing the memory device of the embodiment of the
invention, the connectors of two different interfaces are
integrated on one single substrate, the conventional adapter card
is omitted, and the commodity cost of the memory device is
therefore decreased.
[0019] A detailed description is given in the following embodiments
with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention can be more fully understood by
reading the subsequent detailed description and examples with
references made to the accompanying drawings, wherein:
[0021] FIG. 1A shows a first surface of a memory device of a first
embodiment of the invention;
[0022] FIG. 1B shows a second surface of the memory device of the
first embodiment of the invention;
[0023] FIG. 2A shows a first surface of a memory device of a second
embodiment of the invention;
[0024] FIG. 2B shows a second surface of the memory device of the
second embodiment of the invention; and
[0025] FIG. 3 shows a memory device of a third embodiment of the
invention.
DETAILED DESCRIPTION OF THE INVENTION
[0026] The following description is of the best-contemplated mode
of carrying out the invention. This description is made for the
purpose of illustrating the general principles of the invention and
should not be taken in a limiting sense. The scope of the invention
is best determined by reference to the appended claims.
[0027] FIG. 1A shows a memory device M1 of a first embodiment of
the invention. The memory device M1 includes a substrate 3, a first
interface connector 1, a second interface connector 2 and a
plurality of memory chips 4. The substrate 3 includes a first edge
31, a second edge 32, a third edge 33 and a fourth edge 34. The
first edge 31 is parallel to the third edge 33. The second edge 32
is parallel to the fourth edge 34. The first edge 31 is
perpendicular to the second edge 32. The length of the first edge
31 is shorter than the length of the second edge 32. The first
interface connector 1 is disposed on the first edge 31. The first
interface connector 1 comprises a plurality of first edge-board
contacts 11. The first edge-board contacts 11 extend toward a first
direction X. The second interface connector 2 is disposed on the
second edge 32. The second interface connector 2 comprises a
plurality of second edge-board contacts 21. The second edge-board
contacts 21 extend toward a second direction Y. The memory chips 4
are disposed on the substrate 3. The second interface connector 2
is located between the memory chips 4 and the first interface
connector 1 in the first direction X.
[0028] Utilizing the memory device of the embodiment of the
invention, the connectors of two different interfaces are
integrated on one single substrate, the conventional adapter card
is omitted, and the commodity cost of the memory device is
therefore decreased.
[0029] With reference to FIG. 1A, in one embodiment, the memory
chips 4 are arranged in the first direction X.
[0030] With reference to FIGS. 1A and 1B, in one embodiment, the
substrate 3 comprises a first surface 35 and a second surface 36.
The first surface 35 is opposite to the second surface 36. The
memory chips 4 comprise at least one first flash memory chip 41,
and the first flash memory chip 41 is disposed on the first surface
35.
[0031] With reference to FIG. 1A, in one embodiment, the memory
device M1 further comprises a controller 5. The controller 5 is
disposed on the first surface 35 of the substrate 3. The controller
5 is located between the first flash memory chip 41 and the second
interface connector 2 in the first direction X. In this embodiment,
the controller 5 is coupled to the first interface connector 1 and
the second interface connector 2 by traces formed on the substrate.
The design of controller 5 being located between the first flash
memory chip 41 and the second interface connector 2 in the first
direction X can simplify the trace layout on the substrate.
[0032] With reference to FIG. 1A, in one embodiment, the memory
chips 4 further comprise a DRAM chip 43. The DRAM chip 43 is
disposed on the first surface 35 of the substrate 3. The DRAM chip
43 is located between the first flash memory chip 41 and the
controller 5 in the first direction X to simplify the trace layout
on the substrate.
[0033] With reference to FIG. 1A, in one embodiment, the memory
chips 4 comprise a plurality of first flash memory chips 41. The
first flash memory chips 41 are disposed on the first surface 35
and arranged in the first direction X. The first flash memory chips
41 are located between the DRAM chip 43 and the third edge 33.
[0034] With reference to FIG. 1A, in one embodiment, the memory
device M1 further comprises at least one passive component 6. The
passive component 6 is located between the controller 5 and the
first interface connector 1 in the first direction X. The passive
component 6 is located between the second interface connector 2 and
the fourth edge 34 in the second direction Y. In this embodiment,
the position of the passive component 6 sufficiently utilizes the
space between the second interface connector 2 and the fourth edge
34.
[0035] In one embodiment, the passive component 6 is a capacitor.
In one embodiment, the memory device M1 further comprises a
plurality of passive components 6. The passive components 6 are
located between the controller 5 and the first interface connector
1 in the first direction X. The passive components 6 are located
between the second interface connector 2 and the fourth edge 34 in
the second direction. The passive components 6 are arranged in the
first direction X. However, the disclosure is not meant to restrict
the invention. The passive components 6 can be other components,
and the arrangement of the passive components 6 can also be
modified according to the shape or the size of the passive
components 6.
[0036] With reference to FIG. 1B, in one embodiment, the memory
chips 4 comprise a plurality of second flash memory chips 42. The
second flash memory chips 42 are disposed on the second surface 36
and are arranged in the first direction X. By disposing the second
flash memory chips 42 on the second surface 36, the memory capacity
of the memory device is further increased.
[0037] FIGS. 2A and 2B shows a memory device M2 of a second
embodiment of the invention. In this embodiment, the DRAM chip 43
of the memory chips 4 is disposed on the second surface 36 of the
substrate. The DRAM chip 36 and the second flash memory chip 42 are
arranged in the first direction X. In other words, there is no DRAM
chip 43 disposed on the first surface 35.
[0038] In another embodiment, the DRAM chip can also be omitted,
the memory chips of the memory device only include flash memory
chips, and there is no DRAM chip disposed neither on the first
surface 35 nor on the second surface 36.
[0039] In one embodiment, the first interface connector is an M.2
connector, and the second interface connector is a PCIE connector.
However, the disclosure is not meant to restrict the invention. In
other embodiment, the first interface connector and the second
interface connector can be connectors of other standards.
[0040] With reference to FIG. 1A, in this embodiment, the second
interface connector 2 has a connector height h. The substrate 3 has
a substrate height H. The connector height h is smaller than half
of the substrate height H. In other words, the substrate 3 is
equally compartmentalized into an upper substrate part 37 and a
lower substrate part 38 in the second direction Y, and the second
interface connector 2 is located on the lower substrate part 38 and
a portion of the upper substrate part 37.
[0041] FIG. 3 shows a memory device M3 of a third embodiment of the
invention. In this embodiment, the second interface connector 2 has
a connector height h. The substrate 3 has a substrate height H. The
connector height h is smaller than half of the substrate height H.
In other words, the substrate 3 is equally compartmentalized into
an upper substrate part 37 and a lower substrate part 38 in the
second direction Y, and the second interface connector 2 is only
located in the lower substrate part. In this embodiment, the second
interface connector 2 is adapted to connect the PCIE slot and
transmit data therewith. The size of the second interface connector
2 in this embodiment can be smaller than the standard PCIE
connector. The memory device of the embodiment of the invention has
decreased weight. Therefore, the second interface connector 2 of
this embodiment can still firmly connect to the PCIE slot even with
the smaller connector size.
[0042] In one embodiment, the size of the substrate can be 2260(22
mm.times.60 mm) or 2280(22 mm.times.80 mm), or other sizes.
[0043] Use of ordinal terms such as "first", "second", "third",
etc., in the claims to modify a claim element does not by itself
connote any priority, precedence, or order of one claim element
over another or the temporal order in which acts of a method are
performed, but are used merely as labels to distinguish one claim
element having a certain name from another element having the same
name (but for use of the ordinal term).
[0044] While the invention has been described by way of example and
in terms of the preferred embodiments, it should be understood that
the invention is not limited to the disclosed embodiments. On the
contrary, it is intended to cover various modifications and similar
arrangements (as would be apparent to those skilled in the art).
Therefore, the scope of the appended claims should be accorded the
broadest interpretation so as to encompass all such modifications
and similar arrangements.
* * * * *