SCRs with checker board layouts

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United States of America Patent

PATENT NO 9812436
SERIAL NO

14844272

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Abstract

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An Electro-Static Discharge (ESD) protection circuit includes a plurality of groups of p-type heavily doped semiconductor strips (p+ strips) and a plurality of groups of n-type heavily doped semiconductor strips (n+ strips) forming an array having a plurality of rows and columns. In each of the rows and the columns, the plurality of groups of p+ strips and the plurality of groups of n+ strips are allocated in an alternating layout. The ESD protection circuit further includes a plurality of gate stacks, each including a first edge aligned to an edge of a group in the plurality of groups of p+ strips, and a second edge aligned to an edge of a group in the plurality of groups of n+ strips.

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Patent Owner(s)

  • TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Shui-Ming Zhubei, TW 24 540
Lin, Wun-Jie Hsin-Chu, TW 78 733
Song, Ming-Hsiang Hsin-Chu, TW 60 533
Su, Yu-Ti Tainan, TW 68 212
Yang, Han-Jen Taipei, TW 17 83

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