Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hokuto Kumagai0
Date of Patent
March 3, 2009
0Patent Application Number
118449280
Date Filed
August 24, 2007
0Patent Primary Examiner
Patent abstract
A semiconductor device includes a seal ring formed on an outer circumference of an element forming region when seen from the top in a multilayer interconnect structure formed on a silicon layer, and dummy metal structures formed on a further outer circumference of the seal ring. The more inner circumference side the dummy interconnect is formed on, the more upper layer the dummy interconnect is arranged on.
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