Asymmetric source/drain depths

US9515071B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9515071-B2
Application numberUS-201414582431-A
CountryUS
Kind codeB2
Filing dateDec 24, 2014
Priority dateDec 24, 2014
Publication dateDec 6, 2016
Grant dateDec 6, 2016

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A semiconductor device includes a substrate having a first region and a second region, an n-type transistor in the first region, the n-type transistor comprising a first set of source/drain features, and a p-type transistor in the second region, the p-type transistor comprising a second set of source/drain features. The second set of source/drain features extend deeper than the first set of source/drain features.

First claim

Opening claim text (preview).

What is claimed is: 1. A semiconductor device, comprising: a relaxed semiconductor layer on a substrate, the substrate comprising an n-type region and a p-type region; a tensile strained semiconductor layer on the relaxed semiconductor layer; a compressive strained semiconductor layer on the tensile strained semiconductor layer in the p-type region; a first gate in the n-type region and a second gate in the p-type region; and a first set of source/drain features adjacent t…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9515071B2 cover?
A semiconductor device includes a substrate having a first region and a second region, an n-type transistor in the first region, the n-type transistor comprising a first set of source/drain features, and a p-type transistor in the second region, the p-type transistor comprising a second set of source/drain features. The second set of source/drain features extend deeper than the first set of sou…
Who is the assignee on this patent?
Taiwan Semiconductor Mfg Co Ltd
What technology area does this patent fall under?
Primary CPC classification H10D84/017. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Dec 06 2016 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).