Device isolation structure of a semiconductor device and...

Semiconductor device manufacturing: process – Introduction of conductivity modifying dopant into... – Ion implantation of dopant into semiconductor region

Reexamination Certificate

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C438S524000, C257SE21546

Reexamination Certificate

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07629238

ABSTRACT:
Disclosed are an isolation structure and a method for forming the same. The present isolation structure includes a substrate having a first semiconductor layer having a first lattice parameter, a second semiconductor layer having a second lattice parameter larger than the first lattice parameter, and a strained semiconductor layer; a well in the substrate; a plurality of isolation layers in the strained semiconductor layer and the second semiconductor layer, defining an active region; and a plurality of punch stop layers under the isolation layers.

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Chinese Office Action; Application No. 200610103586.X; Dated: Jun. 27, 2008; The State Intellectual Property Office of the People's Republic of China; China.

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