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:
Nov. 10, 2020

Filed:

Jul. 23, 2019
Applicant:

Globalfoundries Inc., Grand Cayman, KY;

Inventors:

Haiting Wang, Clifton Park, NY (US);

Sipeng Gu, Clifton Park, NY (US);

Jiehui Shu, Clifton Park, NY (US);

Scott H. Beasor, Greenwich, NY (US);

Zhenyu Hu, Clifton Park, NY (US);

Assignee:

GLOBALFOUNDRIES INC., Grand Cayman, KY;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/06 (2006.01); H01L 49/02 (2006.01); H01L 29/66 (2006.01); H01L 29/51 (2006.01); H01L 29/78 (2006.01); H01L 29/06 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0629 (2013.01); H01L 28/24 (2013.01); H01L 29/515 (2013.01); H01L 29/665 (2013.01); H01L 29/78 (2013.01); H01L 29/0653 (2013.01);
Abstract

A structure includes a first dielectric over a trench silicide (TS) contact and over a gate structure, and at least one cavity in the first dielectric. A metal resistor layer is on a bottom and sidewalls of the at least one cavity and extends over the first dielectric. A first contact is on the metal resistor layer over the first dielectric; and a second contact is on the metal resistor layer over the first dielectric. The metal resistor layer is over the TS contact and over the gate structure. Where a plurality of cavities are provided in the dielectric, a resistor structure formed by the metal resistor layer may have an undulating cross-section over the plurality of cavities and the dielectric.


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