Strained semiconductor device with recessed channel and method for forming the sanme

A semiconductor device having a strained channel and a method of manufacture thereof is provided. The semiconductor device has a gate electrode formed over a channel recess. A first recess and a second recess formed on opposing sides of the gate electrode are filled with a stress-inducing material....

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Bibliographische Detailangaben
Hauptverfasser: LO HSIENCHING, CHEN KUANCHUNG, TSAI HANTING, SUNG HSUEHCHANG, CHENG CHUNFAI, FUNG KAHING, FAN WEIHAN, WANG HAITING, TSAI MINGHUAN, LU WEIYUAN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A semiconductor device having a strained channel and a method of manufacture thereof is provided. The semiconductor device has a gate electrode formed over a channel recess. A first recess and a second recess formed on opposing sides of the gate electrode are filled with a stress-inducing material. The stress-inducing material extends into an area wherein source/drain extensions overlap an edge of the gate electrode. In an embodiment, sidewalls of the channel recess and/or the first and second recesses may be along {111} facet planes.