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Richard A. Ferguson
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Pleasant Valley, NY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Binary OPC for assist feature layout optimization
Patent number
7,147,976
Issue date
Dec 12, 2006
International Business Machines Corporation
Lars W. Liebmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Binary OPC for assist feature layout optimization
Patent number
7,001,693
Issue date
Feb 21, 2006
International Business Machines Corporation
Lars W. Liebmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Asymmetric halftone biasing for sub-grid pattern adjustment
Patent number
6,596,442
Issue date
Jul 22, 2003
International Business Machines Corporation
Alfred K. Wong
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process window based optical proximity correction of lithographic i...
Patent number
6,578,190
Issue date
Jun 10, 2003
International Business Machines Corporation
Richard A. Ferguson
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Detection of phase defects on photomasks by differential imaging
Patent number
6,327,033
Issue date
Dec 4, 2001
International Business Machines Corporation
Richard A. Ferguson
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Kernel-based fast aerial image computation for a large scale design...
Patent number
6,223,139
Issue date
Apr 24, 2001
International Business Machines Corporation
Alfred K. Wong
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for forming cornered images on a substrate and photomask for...
Patent number
6,184,151
Issue date
Feb 6, 2001
International Business Machines Corporation
William J. Adair
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of determining the printability of photomask defects
Patent number
5,965,306
Issue date
Oct 12, 1999
International Business Machines Corporation
Scott Marshall Mansfield
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for forming cornered images on a substrate and photomask for...
Patent number
5,959,325
Issue date
Sep 28, 1999
International Business Machines Corporation
William J. Adair
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Focus monitor for alternating phase shifted masks
Patent number
5,936,738
Issue date
Aug 10, 1999
International Business Machines Corporation
Lars W. Liebmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Exact transmission balanced alternating phase-shifting mask for pho...
Patent number
5,932,377
Issue date
Aug 3, 1999
International Business Machines Corporation
Richard A. Ferguson
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Lithographic patterning method and mask set therefor with light fie...
Patent number
5,807,649
Issue date
Sep 15, 1998
International Business Machines Corporation
Lars W. Liebmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High resolution phase edge lithography without the need for a trim...
Patent number
5,538,833
Issue date
Jul 23, 1996
International Business Machines Corporation
Richard A. Ferguson
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Binary OPC for assist feature layout optimization
Publication number
20060057475
Publication date
Mar 16, 2006
Lars W. Liebmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Binary OPC for assist feature layout optimization
Publication number
20040170905
Publication date
Sep 2, 2004
International Business Machines Corporation
Lars W. Liebmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Process window based optical proximity correction of lithographic i...
Publication number
20020091986
Publication date
Jul 11, 2002
International Business Machines Corporation
Richard A. Ferguson
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY