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Roger S. Tsai
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Torrance, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Metal-semiconductor heterodimension field effect transistors (MESHF...
Patent number
10,153,273
Issue date
Dec 11, 2018
Northrop Grumman Systems Corporation
Roger S. Tsai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multiple layer side-gate FET switch
Patent number
9,793,350
Issue date
Oct 17, 2017
Northrop Grumman Systems Corporation
Roger S. Tsai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multiple layer quantum well FET with a side-gate
Patent number
9,793,353
Issue date
Oct 17, 2017
Northrop Gumman Systems Corporation
Roger S. Tsai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Yield enhancing vertical redundancy method for 3D wafer level packa...
Patent number
9,425,110
Issue date
Aug 23, 2016
Northrop Grumman Systems Corporation
Jose G. Padilla
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High electron mobility transistor semiconductor device having field...
Patent number
7,800,132
Issue date
Sep 21, 2010
Northrop Grumman Systems Corporation
Ioulia Smorchkova
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for etching mesa isolation in antimony-based compound semico...
Patent number
7,135,411
Issue date
Nov 14, 2006
Northrop Grumman Corporation
Peter S. Nam
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semi-physical modeling of HEMT high frequency small signal equivale...
Patent number
6,772,400
Issue date
Aug 3, 2004
Northrop Grumman Corporation
Roger S. Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Hybrid semi-physical and data fitting HEMT modeling approach for la...
Patent number
6,711,723
Issue date
Mar 23, 2004
Northrop Grumman Corporation
Roger S. Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for unique determination of FET equivalent circuit model par...
Patent number
6,594,594
Issue date
Jul 15, 2003
Northrop Grumman Corporation
Roger Su-Tsung Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
S-parameter microscopy for semiconductor devices
Patent number
6,573,744
Issue date
Jun 3, 2003
Northrop Grumman Corporation
Roger S. Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Process for forming a large area, high gate current HEMT diode
Patent number
6,524,899
Issue date
Feb 25, 2003
TRW Inc.
Ronald W. Grundbacher
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Embedding parasitic model for pi-fet layouts
Patent number
6,503,774
Issue date
Jan 7, 2003
TRW Inc.
Roger S. Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single-layer dielectric structure with rounded corners, and circuit...
Patent number
6,396,679
Issue date
May 28, 2002
TRW Inc.
Ronald W. Grundbacher
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
High electron mobility transistor semiconductor device having field...
Publication number
20090108299
Publication date
Apr 30, 2009
Northrop Grumman Space & Mission Systems Corp.
Ioulia Smorchkova
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for etching mesa isolation in antimony-based compound semico...
Publication number
20060035467
Publication date
Feb 16, 2006
Peter S. Nam
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semi-physical modeling of HEMT DC-to high frequency electrothermal...
Publication number
20030055613
Publication date
Mar 20, 2003
TRW, Inc.
Roger S. Tsai
G01 - MEASURING TESTING
Information
Patent Application
S-parameter microscopy for semiconductor devices
Publication number
20030042928
Publication date
Mar 6, 2003
TRW, Inc.
Roger S. Tsai
G01 - MEASURING TESTING
Information
Patent Application
Semi-physical modeling of HEMT high frequency noise equivalent circ...
Publication number
20020116691
Publication date
Aug 22, 2002
TRW, Inc.
Roger S. Tsai
G01 - MEASURING TESTING
Information
Patent Application
Hybrid semi-physical and data fitting HEMT modeling approach for la...
Publication number
20020083406
Publication date
Jun 27, 2002
TRW, Inc.
Roger S. Tsai
G01 - MEASURING TESTING
Information
Patent Application
Embedding parasitic model for pi-fet layouts
Publication number
20020073387
Publication date
Jun 13, 2002
TRW, Inc.
Roger S. Tsai
G01 - MEASURING TESTING
Information
Patent Application
Process perturbation to measured-modeled method for semiconductor d...
Publication number
20020055193
Publication date
May 9, 2002
TRW, Inc.
Roger S. Tsai
G01 - MEASURING TESTING
Information
Patent Application
Semi-physical modeling of HEMT high frequency small signal equivale...
Publication number
20020007258
Publication date
Jan 17, 2002
TRW, Inc.
Roger S. Tsai
G06 - COMPUTING CALCULATING COUNTING