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Xue Hua Wu
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Union City, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Etching process to selectively remove copper plating seed layer
Patent number
6,767,477
Issue date
Jul 27, 2004
Headway Technologies, Inc.
Xue Hua Wu
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Masking frame plating method for forming masking frame plated layer
Patent number
6,627,390
Issue date
Sep 30, 2003
Headway Technologies, Inc.
Xue Hua Wu
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Etching process to selectively remove copper plating seed layer
Publication number
20020168223
Publication date
Nov 14, 2002
HEADWAY TECHNOLOGIES, INC.
Xue Hua Wu
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Masking frame plating method for forming masking frame plated layer
Publication number
20010036601
Publication date
Nov 1, 2001
HEADWAY TECHNOLOGIES, INC.
Xue Hua Wu
G11 - INFORMATION STORAGE