Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mitsuaki Katagiri0
Satoshi Isa0
Shigeyuki Nakazawa0
Toru Chonan0
Date of Patent
June 7, 2011
0Patent Application Number
115357500
Date Filed
September 27, 2006
0Patent Primary Examiner
Patent abstract
A semiconductor device has a semiconductor chip which is usable as any one of 4-bit, 8-bit, and 16-bit structure devices, and a package for packaging the semiconductor chip. The semiconductor chip has first and second DQ pad groups of DQ system pads for said 16-bit structure device. The first DQ pad group is arranged in a first area at a vicinity of a middle part of a surface of the semiconductor chip while the second DQ pad group is arranged in a second area at an outer side of the first area on the surface. An additional pad necessary as one of DQ system pads for the 8-bit structure device except for pads included in the second DQ pad group is formed in the second area.
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