Method of forming semiconductor device

US9034705B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9034705-B2
Application numberUS-201313850887-A
CountryUS
Kind codeB2
Filing dateMar 26, 2013
Priority dateMar 26, 2013
Publication dateMay 19, 2015
Grant dateMay 19, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method of forming a semiconductor device is disclosed. At least one gate structure is provided on a substrate, wherein the gate structure includes a first spacer formed on a sidewall of a gate. A first disposable spacer material layer is deposited on the substrate covering the gate structure. The first disposable spacer material layer is etched to form a first disposable spacer on the first spacer. A second disposable spacer material layer is deposited on the substrate covering the gate structure. The second disposable spacer material layer is etched to form a second disposable spacer on the first disposable spacer. A portion of the substrate is removed, by using the first and second disposable spacers as a mask, so as to form two recesses in the substrate beside the gate structure. A stress-inducing layer is formed in the recesses.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of forming a semiconductor device, comprising: providing at least one gate structure on a substrate, wherein the gate structure comprises a first spacer formed on a sidewall of a gate; depositing a first disposable spacer material layer on the substrate covering the gate structure; etching the first disposable spacer material layer to form a first disposable spacer on the first spacer; depositing a second disposable spacer material layer on th…

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What does patent US9034705B2 cover?
A method of forming a semiconductor device is disclosed. At least one gate structure is provided on a substrate, wherein the gate structure includes a first spacer formed on a sidewall of a gate. A first disposable spacer material layer is deposited on the substrate covering the gate structure. The first disposable spacer material layer is etched to form a first disposable spacer on the first s…
Who is the assignee on this patent?
United Microelectronics Corp
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 May 19 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).