William H-L. Ma

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Fishkill, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Vertical dual gate field effect transistor
- Patent number 7,176,089
- Issue date Feb 13, 2007
- International Business Machines Corporation
- Toshiharu Furukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of independent P and N gate length control of FET device mad...
- Patent number 6,998,332
- Issue date Feb 14, 2006
- International Business Machines Corporation
- Toshiharu Furukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Methods using disposable and permanent films for diffusion and impl...
- Patent number 6,924,200
- Issue date Aug 2, 2005
- International Business Machines Corporation
- Toshiharu Furukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for etching a semiconductor substrate using germanium hard mask
- Patent number 6,867,143
- Issue date Mar 15, 2005
- International Business Machines Corporation
- Toshiharu Furukawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...