Method and manufacture of thin silicon on insulator (SOI) with recessed channel

作者: Werner A. Rausch , Bruce B. Doris , Huilong Zhu , Ying Zhang

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摘要: An RSD FET device with a recessed channel is formed raised silicon sources and drains gate electrode structure on an SOI (a Si layer substrate) by the steps as follows. Form SiGe over SiGe. Etch through to form space reaching down layer. pair of regions separated space. Line walls internal etch stop inner sidewall spacers. inside spacers external adjacent between next spacers, dope regions, whereby in source/drain thereabove below level