Judith Schmidt

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St. John, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods for etching the edge of a silicon wafer
- Patent number 8,309,464
- Issue date Nov 13, 2012
- MEMC Electronic Materials, Inc.
- Henry F. Erk
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Edge etched silicon wafers
- Patent number 8,192,822
- Issue date Jun 5, 2012
- MEMC Electronic Materials, Inc.
- Henry F. Erk
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Silicon wafer etching process and composition
- Patent number 7,323,421
- Issue date Jan 29, 2008
- MEMC Electronic Materials, Inc.
- Mark G. Stinson
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Method and apparatus to place wafers into and out of machine
- Patent number 6,398,631
- Issue date Jun 4, 2002
- MEMC Electronic Materials, Inc.
- Gary L. Anderson
- B24 - GRINDING POLISHING
Information Patent Grant
Post-lapping cleaning process for silicon wafers
- Patent number 5,837,662
- Issue date Nov 17, 1998
- MEMC Electronic Materials, Inc.
- Jing Chai
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
METHODS FOR ETCHING THE EDGE OF A SILICON WAFER
- Publication number 20090247055
- Publication date Oct 1, 2009
- MEMC Electronic Materials, Inc.
- Henry F. Erk
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EDGE ETCHED SILICON WAFERS
- Publication number 20090246444
- Publication date Oct 1, 2009
- MEMC Electronic Materials, Inc.
- Henry F. Erk
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EDGE ETCHING APPARATUS FOR ETCHING THE EDGE OF A SILICON WAFER
- Publication number 20090242126
- Publication date Oct 1, 2009
- MEMC Electronic Materials, Inc.
- Henry F. Erk
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Silicon wafer etching process and composition
- Publication number 20060011588
- Publication date Jan 19, 2006
- Mark G. Stinson
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Process for etching silicon wafers
- Publication number 20040108297
- Publication date Jun 10, 2004
- MEMC Electronic Materials, Inc.
- Henry F. Erk
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Process for etching silicon wafers
- Publication number 20020034881
- Publication date Mar 21, 2002
- Milind S. Kulkarni
- H01 - BASIC ELECTRIC ELEMENTS