Wall; Ralph N.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wall; Ralph N..The latest application filed is for "trench-gate insulated-gate bipolar transistors (igbts) and methods of manufacture".

Company Profile

3.17.10

Wall; Ralph N. - Pocatello ID
Wall; Ralph N. - Beaverton OR
Wall; Ralph N. - San Jose CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Trench-gate insulated-gate bipolar transistors Grant 11,056,581 - Liu , et al. July 6, 2	2021-07-06
TRENCH-GATE INSULATED-GATE BIPOLAR TRANSISTORS (IGBTs) AND METHODS OF MANUFACTURE App 20200350424 - LEE; Meng-Chia ; et al.	2020-11-05
Trench-gate insulated-gate bipolar transistors (IGBTs) Grant 10,727,326 - Lee , et al.	2020-07-28
Electronic device including an insulated gate bipolar transistor having a field-stop region and a process of forming the same Grant 10,546,948 - Lee , et al. Ja	2020-01-28
Accumulation enhanced insulated gate bipolar transistor (AEGT) and methods of use thereof Grant 10,388,726 - Lee , et al. A	2019-08-20
Accumulation Enhanced Insulated Gate Bipolar Transistor (aegt) And Methods Of Use Thereof App 20190123136 - LEE; Meng-Chia ; et al.	2019-04-25
TRENCH-GATE INSULATED-GATE BIPOLAR TRANSISTORS (IGBTs) AND METHODS OF MANUFACTURE App 20190058055 - LEE; Meng-Chia ; et al.	2019-02-21
TRENCH-GATE INSULATED-GATE BIPOLAR TRANSISTORS (IGBTs) AND METHODS OF MANUFACTURE App 20190058056 - Liu; Mingjiao ; et al.	2019-02-21
Semiconductor device with a buried junction layer having an interspersed pattern of doped and counter-doped materials Grant 10,128,330 - Wall , et al. November 13, 2	2018-11-13
Optimal acoustic impedance materials for polished substrate coating to suppress passband ripple in BAW resonators and filters Grant 8,952,768 - Godshalk , et al. February 10, 2	2015-02-10
Optimal Acoustic Impedance Materials for Polished Substrate Coating to Suppress Passband Ripple in BAW Resonators and Filters App 20130335169 - Godshalk; Edward Martin ; et al.	2013-12-19
Method to control BAW resonator top electrode edge during patterning Grant 8,522,411 - Bouche , et al. September 3, 2	2013-09-03
Optimal acoustic impedance materials for polished substrate coating to suppress passband ripple in BAW resonators and filters Grant 8,512,800 - Godshalk , et al. August 20, 2	2013-08-20
Process of making a BAW resonator bi-layer top electrode Grant 8,201,311 - Hamou , et al. June 19, 2	2012-06-19
Orientation-dependent etching of deposited AlN for structural use and sacrificial layers in MEMS Grant 7,960,200 - Bouche , et al. June 14, 2	2011-06-14
BAW resonator bi-layer top electrode with zero etch undercut Grant 7,737,612 - Hamou , et al. June 15, 2	2010-06-15
Method to control BAW resonator top electrode edge during patterning Grant 7,612,488 - Bouche , et al. November 3, 2	2009-11-03
BAW resonator bi-layer top electrode with zero etch undercut Grant 7,600,303 - Hamou , et al. October 13, 2	2009-10-13
Methods of contacting the top layer of a BAW resonator Grant 7,567,024 - Wall , et al. July 28, 2	2009-07-28
Optimal Acoustic Impedance Materials for Polished Substrate Coating to Suppress Passband Ripple in BAW Resonators and Filters App 20090142480 - Godshalk; Edward Martin ; et al.	2009-06-04
Methods of Contacting the Top Layer of a BAW Resonator App 20090079302 - Wall; Ralph N. ; et al.	2009-03-26
Orientation-dependent etching of deposited AIN for structural use and sacrificial layers in MEMS App 20080268575 - Bouche; Guillaume ; et al.	2008-10-30
Titanium-tungsten alloy based mirrors and electrodes in bulk acoustic wave devices App 20070035364 - Sridhar; Uppili ; et al.	2007-02-15
Metal trim mirror for optimized thin film resistor laser trimming Grant 6,919,984 - Wall , et al. July 19, 2	2005-07-19
Metal trim mirror for optimized thin film resistor laser trimming App 20050030632 - Wall, Ralph N. ; et al.	2005-02-10

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