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:
Apr. 01, 2025

Filed:

Dec. 13, 2022
Applicants:

Robert T. Bondokov, Watervliet, NY (US);

James R. Grandusky, Waterford, NY (US);

Jianfeng Chen, Ballston Lake, NY (US);

Shichao Wang, Troy, NY (US);

Toru Kimura, Tokyo, JP;

Thomas Miebach, Malta, NY (US);

Keisuke Yamaoka, Tokyo, JP;

Leo J. Schowalter, Latham, NY (US);

Inventors:

Robert T. Bondokov, Watervliet, NY (US);

James R. Grandusky, Waterford, NY (US);

Jianfeng Chen, Ballston Lake, NY (US);

Shichao Wang, Troy, NY (US);

Toru Kimura, Tokyo, JP;

Thomas Miebach, Malta, NY (US);

Keisuke Yamaoka, Tokyo, JP;

Leo J. Schowalter, Latham, NY (US);

Assignee:

CRYSTAL IS, INC., Green Island, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B 29/40 (2006.01); C01B 21/072 (2006.01); C30B 23/06 (2006.01); C30B 33/02 (2006.01); H01L 33/32 (2010.01);
U.S. Cl.
CPC ...
C30B 29/403 (2013.01); C30B 23/066 (2013.01); C30B 33/02 (2013.01); H01L 33/32 (2013.01); C01B 21/072 (2013.01); C01P 2006/60 (2013.01);
Abstract

In various embodiments, single-crystal aluminum nitride boules and substrates have low Urbach energies and/or absorption coefficients at deep-ultraviolet wavelengths. The single-crystal aluminum nitride may function as a platform for the fabrication of light-emitting devices such as light-emitting diodes and lasers. The single-crystal aluminum nitride boules may advantageously have diameters that increase along at least portions of their lengths.


Find Patent Forward Citations

Bondokov, Robert. (2025). Aluminum nitride crystals having low urbach energy and high transparency to deep-ultraviolet wavelengths (U.S. Patent No. 12264410). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12264410

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

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