Stacked semiconductor nanowires with tunnel spacers

US8969149B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8969149-B2
Application numberUS-201313893896-A
CountryUS
Kind codeB2
Filing dateMay 14, 2013
Priority dateMay 14, 2013
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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 structure is provided that includes at least one multilayered stacked semiconductor material structure located on a semiconductor substrate and at least one sacrificial gate material structure straddles a portion of the at least one multilayered stacked semiconductor structure. The at least one multilayered stacked semiconductor material structure includes alternating layers of sacrificial semiconductor material and semiconductor nanowire template material. End segments of each layer of sacrificial semiconductor material are then removed and filled with a dielectric spacer. Source/drain regions are formed from exposed sidewalls of each layer of semiconductor nanowire template material, and thereafter the at least one sacrificial gate material structure and remaining portions of the sacrificial semiconductor material are removed suspending each semiconductor material. A gate structure is formed within the areas previously occupied by the at least one sacrificial gate material structure and remaining portions of the sacrificial semiconductor material.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of forming a semiconductor structure, said method comprising: providing at least one multilayered stacked semiconductor material structure on a semiconductor substrate and at least one sacrificial gate material structure straddling a portion of the at least one multilayered stacked semiconductor structure, wherein the at least one multilayered stacked semiconductor material structure includes alternating layers of a sacrificial semiconductor materia…

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 US8969149B2 cover?
A structure is provided that includes at least one multilayered stacked semiconductor material structure located on a semiconductor substrate and at least one sacrificial gate material structure straddles a portion of the at least one multilayered stacked semiconductor structure. The at least one multilayered stacked semiconductor material structure includes alternating layers of sacrificial se…
Who is the assignee on this patent?
IBM
What technology area does this patent fall under?
Primary CPC classification H10D30/6706. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 03 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).