Andrei Stefanescu

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O'Fallon, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Thermal annealing process for producing silicon wafers with improve...
- Patent number 6,743,495
- Issue date Jun 1, 2004
- MEMC Electronic Materials, Inc.
- Jiri L. Vasat
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor wafer manufacturing process
- Patent number 6,376,395
- Issue date Apr 23, 2002
- MEMC Electronic Materials, Inc.
- Jiri L. Vasat
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Process for the removal of copper from polished boron-doped silicon...
- Publication number 20030104680
- Publication date Jun 5, 2003
- MEMC Electronic Materials, Inc.
- Andrei D. Stefanescu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Thermal annealing process for producing silicon wafers with improve...
- Publication number 20020174828
- Publication date Nov 28, 2002
- MEMC Electronic Materials, Inc.
- Jiri L. Vasat
- C30 - CRYSTAL GROWTH
Information Patent Application
Method and apparatus for reconditioning a shipping container
- Publication number 20020140130
- Publication date Oct 3, 2002
- Andrei Stefanescu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Semiconductor Wafer Manufacturing Process
- Publication number 20020004305
- Publication date Jan 10, 2002
- Jiri L. Vasat
- H01 - BASIC ELECTRIC ELEMENTS