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Gerhard Brehm
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Emmerting, DE
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last 30 patents
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Patent Grant
Method for the generation of stacking-fault-induced damage on the b...
Patent number
5,710,077
Issue date
Jan 20, 1998
Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
Gerhard Brehm
C30 - CRYSTAL GROWTH
Information
Patent Grant
Process for the surface treatment of semiconductor slices
Patent number
5,164,323
Issue date
Nov 17, 1992
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
Gerhard Brehm
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for slicing crystalline wafers aided by magnet...
Patent number
5,030,910
Issue date
Jul 9, 1991
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
Joachim Junge
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Process for preserving the surface of silicon wafers
Patent number
4,973,563
Issue date
Nov 27, 1990
Wacker Chemitronic Gesellschaft
Helene Prigge
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process and apparatus for etching semiconductor surfaces
Patent number
4,971,654
Issue date
Nov 20, 1990
Wacker-Chemitronic Gesellschaft fur Electronik-Grundstoffe mbH
Anton Schnegg
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of haze-free polishing for semiconductor wafers
Patent number
4,968,381
Issue date
Nov 6, 1990
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
Helene Prigge
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and liquid preparation for removing residues of auxiliary sa...
Patent number
4,900,363
Issue date
Feb 13, 1990
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
Gerhard Brehm
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Process for sawing crystal rods or blocks into thin wafers
Patent number
4,844,047
Issue date
Jul 4, 1989
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
Gerhard Brehm
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for sharpening cutting-off tools and cutting-off process
Patent number
4,811,722
Issue date
Mar 14, 1989
Wacker Chemitronics GmbH
Gerhard Brehm
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Process and apparatus for abrasive machining of a wafer-like workpiece
Patent number
4,739,589
Issue date
Apr 26, 1988
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoff mbH
Gerhard Brehm
B24 - GRINDING POLISHING