The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 28, 2019

Filed:

Jul. 18, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Kangguo Cheng, Schenectady, NY (US);

Wilfried E. Haensch, Somers, NY (US);

Ali Khakifirooz, Los Altos, CA (US);

Davood Shahrjerdi, Brooklyn, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 21/8234 (2006.01); H01L 27/088 (2006.01); H01L 21/84 (2006.01); H01L 29/06 (2006.01); H01L 29/423 (2006.01); H01L 29/786 (2006.01); H01L 29/08 (2006.01); H01L 29/10 (2006.01); H01L 29/417 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 29/66666 (2013.01); H01L 21/823412 (2013.01); H01L 21/823418 (2013.01); H01L 21/823475 (2013.01); H01L 21/823487 (2013.01); H01L 21/84 (2013.01); H01L 27/088 (2013.01); H01L 29/0649 (2013.01); H01L 29/0847 (2013.01); H01L 29/1037 (2013.01); H01L 29/41741 (2013.01); H01L 29/42392 (2013.01); H01L 29/66484 (2013.01); H01L 29/66545 (2013.01); H01L 29/7827 (2013.01); H01L 29/78618 (2013.01); H01L 29/78642 (2013.01); H01L 29/78696 (2013.01);
Abstract

A method of forming a semiconductor structure is provided. The method including forming a first vertical channel on a first layer of source/drain material that is perpendicular relative to the first vertical channel, and forming a first source/drain semiconductor structure by removing one or more portions of the first layer of source/drain material such that i) the first source/drain semiconductor structure has a vertical side that is substantially planar with a vertical side of the first vertical channel and ii) a width of the source/drain is greater than a width of the first vertical channel, wherein the first source/drain semiconductor structure extends perpendicularly from its vertical side farther than the first vertical channel extends perpendicularly from its vertical side.


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