Weijian Wang

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for determining best focus using dark-field im...
- Patent number 7,095,904
- Issue date Aug 22, 2006
- Ultratech, Inc.
- Weijian Wang
- G02 - OPTICS
Information Patent Grant
Apparatus for and method of reducing or eliminating interference ef...
- Patent number 6,554,464
- Issue date Apr 29, 2003
- Ultratech Stepper, Inc.
- Andrew M. Hawryluk
- G02 - OPTICS
Information Patent Grant
Laser thermal processing apparatus and method
- Patent number 6,366,308
- Issue date Apr 2, 2002
- Ultratech Stepper, Inc.
- Andrew M. Hawryluk
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for determining best focus using dark-field im...
- Publication number 20040145671
- Publication date Jul 29, 2004
- ULTRATECH STEPPER, INC.
- Weijian Wang
- G02 - OPTICS