Guard ring structure and method of forming the sam

专利名称：Guard ring structure and method of forming

the same

发明人：Wan-Yen Lin,Wun-Jie Lin,Yu-Ti Su,Bo-Ting

Chen,Jen-Chou Tseng,Kuo-Ji Chen,Sun-JayChang,Min-Chang Liang

申请号：US14464298申请日：20140820公开号：US09450044B2公开日：20160920

专利附图：

摘要：A circuit device includes core circuitry. The circuit device further includes a first

set of guard rings having a first dopant type, the first set of guard rings being around aperiphery of the core circuitry, the first set of guard rings comprising a first guard ringand a second guard ring. The circuit device further includes a second set of guard ringshaving a second dopant type, the second dopant type being opposite to the first dopanttype, wherein at least one guard ring of the second set of guard rings is around aperiphery of at least one guard ring of the first set of guard rings, and the second set ofguard rings comprises a third guard ring and a fourth guard ring.

申请人：TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

地址：Hsinchu TW

国籍：TW

代理机构：Hauptman Ham, LLP

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