Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomohiro Oki0
Takayo Kobayashi0
Date of Patent
November 16, 2010
0Patent Application Number
117907220
Date Filed
April 27, 2007
0Patent Primary Examiner
Patent abstract
According to an aspect of the present invention, there is provided a semiconductor device including a semiconductor substrate which includes a number of chip areas, a processed film which is formed on the semiconductor substrate, and a ring-shaped pattern which is formed on the processed film and along a peripheral portion of the semiconductor substrate.
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