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:
Dec. 12, 2023

Filed:

Apr. 15, 2021
Applicant:

Applied Materials, Inc., Santa Clara, CA (US);

Inventors:

Chen-Ying Wu, Santa Clara, CA (US);

Abhishek Dube, Fremont, CA (US);

Yi-Chiau Huang, Fremont, CA (US);

Assignee:

Applied Materials, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01); H01L 29/66 (2006.01); H01L 29/167 (2006.01); H01L 21/02 (2006.01); H01L 21/225 (2006.01); H01L 29/423 (2006.01); H01L 29/775 (2006.01); H01L 29/786 (2006.01); H01L 29/06 (2006.01);
U.S. Cl.
CPC ...
H01L 29/0847 (2013.01); H01L 21/0262 (2013.01); H01L 21/02532 (2013.01); H01L 21/02576 (2013.01); H01L 21/2252 (2013.01); H01L 29/167 (2013.01); H01L 29/6675 (2013.01); H01L 29/66439 (2013.01); H01L 29/66772 (2013.01); H01L 29/0665 (2013.01); H01L 29/0673 (2013.01); H01L 29/42392 (2013.01); H01L 29/775 (2013.01); H01L 29/78696 (2013.01);
Abstract

A method for the selective formation of epitaxial layers is described herein. In the method, epitaxial layers are deposited to form source and drain regions around a horizontal gate all around (hGAA structure). The method includes co-flowing a combination of chlorinated silicon containing precursors, antimony containing precursors, and n-type dopant precursors. The resulting source and drain regions are selectively grown from crystalline nanosheets or nanowires of the hGAA structure over the non-crystalline gate structure and dielectric layers. The source and drain regions are predominantly grown in a <110> direction.


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