FinFET with bottom SiGe layer in source/drain

US8963258B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8963258-B2
Application numberUS-201313800817-A
CountryUS
Kind codeB2
Filing dateMar 13, 2013
Priority dateMar 13, 2013
Publication dateFeb 24, 2015
Grant dateFeb 24, 2015

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Abstract

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A FinFET includes a substrate, a fin structure on the substrate, a source in the fin structure, a drain in the fin structure, a channel in the fin structure between the source and the drain, a gate dielectric layer over the channel, and a gate over the gate dielectric layer. At least one of the source and the drain includes a bottom SiGe layer.

First claim

Opening claim text (preview).

What is claimed is: 1. A FinFET, comprising: a substrate having a major surface; a fin structure on the substrate, the fin extending from the major surface and having a topmost surface; a source in the fin structure, the source extending below the topmost surface of the fin; a drain in the fin structure, the drain extending below the topmost surface of the fin; a channel in the fin structure between the source and the drain; a gate dielectric layer over the channel; and…

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What does patent US8963258B2 cover?
A FinFET includes a substrate, a fin structure on the substrate, a source in the fin structure, a drain in the fin structure, a channel in the fin structure between the source and the drain, a gate dielectric layer over the channel, and a gate over the gate dielectric layer. At least one of the source and the drain includes a bottom SiGe layer.
Who is the assignee on this patent?
Taiwan Semiconductor Mfg, Taiwan Semiconductor Mfg
What technology area does this patent fall under?
Primary CPC classification H10D30/024. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).