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. 21, 2019

Filed:

Aug. 29, 2017
Applicant:

Globalfoundries Inc., Grand Cayman, KY;

Inventors:

Min Gyu Sung, Latham, NY (US);

Ruilong Xie, Niskayuna, NY (US);

Chanro Park, Clifton Park, NY (US);

Murat Kerem Akarvardar, Saratoga Springs, NY (US);

Assignee:

GLOBALFOUNDRIES Inc., Grand Cayman, KY;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 27/088 (2006.01); H01L 21/8234 (2006.01); H01L 21/311 (2006.01); H01L 29/06 (2006.01); H01L 21/02 (2006.01); H01L 21/3105 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0886 (2013.01); H01L 21/31111 (2013.01); H01L 21/31144 (2013.01); H01L 21/823431 (2013.01); H01L 21/823481 (2013.01); H01L 29/0649 (2013.01); H01L 29/66795 (2013.01); H01L 21/0217 (2013.01); H01L 21/0228 (2013.01); H01L 21/02164 (2013.01); H01L 21/31053 (2013.01);
Abstract

Structures for the isolation of a fin-type field-effect transistor and methods of forming isolation for a fin-type field-effect transistor. A first dielectric layer is formed that encapsulates a plurality of fins. A second dielectric layer is formed that surrounds the first dielectric layer and the plurality of fins. A surface of the second dielectric layer relative to a surface of the first dielectric layer. A liner is conformally deposited on the surface of the first dielectric layer and on the recessed surface of the second dielectric layer. A section of the liner is removed to expose the surface of the first dielectric layer. The exposed surface of the first dielectric layer is recessed to reveal a portion of each of the plurality of fins.


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