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:
Jun. 16, 2026

Filed:

Dec. 16, 2023
Applicant:

Thinsic Inc., Santa Clara, CA (US);

Inventors:

Tirunelveli Subramaniam Ravi, San Jose, CA (US);

Jinho Seo, Saratoga, CA (US);

Bishnu Prasanna Gogoi, Scottsdale, AZ (US);

Assignee:

ThinSiC Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10D 62/82 (2025.01); H10P 14/20 (2026.01);
U.S. Cl.
CPC ...
H10D 62/82 (2025.01); H10P 14/276 (2026.01);
Abstract

A heterogeneous epitaxial structure formed on a SiC (silicon carbide) substrate. An intermediate layer comprising AlN is formed overlying the SiC substrate. The surface of the intermediate layer comprises AlN formed by lateral epitaxial growth. The lateral epitaxial growth merges to form the surface comprising a MELO layer (merged epitaxial lateral overgrowth). The intermediate layer includes a carbon layer underlying the MELO layer. At least one device layer comprising GaN (gallium nitride) is formed overlying the surface of the intermediate layer in which one or more semiconductor devices are formed. The carbon layer is heated to fracture portions of the intermediate layer to separate the SiC substrate from the intermediate layer. The SiC substrate is not consumed by the separation thereby allowing perpetual reuse in semiconductor wafer processing.


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Ravi, Tirunelveli. (2026). Hetero epitaxial structure and method therefor (U.S. Patent No. 12660269). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12660269

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