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US Patent 7880273 Method of manufacturing semiconductor device from semiconductor wafer

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Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
78802731
Patent Inventor Names
Kenichi Sakamoto1
Date of Patent
February 1, 2011
1
Patent Application Number
115430831
Date Filed
October 5, 2006
1
Patent Primary Examiner
‌
Leonardo Andujar
1
Patent abstract

In a method of manufacturing a semiconductor device, a semiconductor wafer is provided. The wafer has semiconductor chip regions, a scribing line region and a predetermined region. A passivation layer is formed on the wafer. A photoresist film is formed on the passivation layer. A first pattern in a reticle is transferred to a first portion of the photoresist film above the scribing line region. The first pattern is transferred to a second portion of the photoresist film above the predetermined region. The photoresist film is developed. The passivation layer is etched using the photoresist film as a mask. The wafer is diced along the scribing line region to form semiconductor chips and a piece. Each of the semiconductor chips corresponds to each of chip regions. The piece group includes a piece which corresponds to the predetermined region.

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