Ralph V. Vogelgesang

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Old Monroe, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for processing a semiconductor wafer
- Patent number 6,227,944
- Issue date May 8, 2001
- MEMC Electronics Materials, Inc.
- Yun-Biao Xin
- B24 - GRINDING POLISHING
Information Patent Grant
Polishing pad and process for forming same
- Patent number 6,179,950
- Issue date Jan 30, 2001
- MEMC Electronic Materials, Inc.
- Guoqiang (David) Zhang
- B24 - GRINDING POLISHING
Information Patent Grant
Method of conditioning wafer polishing pads
- Patent number 6,135,863
- Issue date Oct 24, 2000
- MEMC Electronic Materials, Inc.
- David Zhang
- B24 - GRINDING POLISHING