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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.

Patent No.:

US 11387271 B1

PDFFull Text
Date of Patent:
Jul. 12, 2022

Filed:

Dec. 17, 2019

Optical sensor with trench etched through dielectric over silicon

Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Scott Robert Summerfelt, Garland, TX (US);

Hassan Omar Ali, Murphy, TX (US);

Benjamin Stassen Cook, Los Gatos, CA (US);

Assignee:

TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);

Attorneys:

Michael A. Davis, Jr.

Charles A. Brill

Frank D. Cimino

Primary Examiner:

Jonathan Han

Int. Cl.
CPC ...
H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1462 (2013.01); H01L 27/14618 (2013.01); H01L 27/14627 (2013.01); H01L 27/14629 (2013.01); H01L 27/14636 (2013.01); H01L 27/14685 (2013.01);
Abstract

In described examples an integrated circuit (IC) has multiple layers of dielectric material overlying at least a portion of a surface of a substrate. A trench is etched through the layers of dielectric material to expose a portion the substrate to form a trench floor, the trench being surrounded by a trench wall formed by the layers of dielectric material. A metal perimeter band surrounds the trench adjacent the trench wall, the perimeter band being embedded in one of the layers of the dielectric material.

Find Patent Forward Citations

Summerfelt, Scott. (2022). Optical sensor with trench etched through dielectric over silicon (U.S. Patent No. 11387271). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11387271

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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