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.:
Date of Patent:
Sep. 02, 2025
Filed:
Nov. 01, 2022
Applicant:
Iqe Plc, Cardiff, GB;
Inventors:
Andrew Johnson, Cardiff, GB;
Andrew Joel, Cardiff, GB;
Assignee:
IQE plc, Cardiff, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10H 20/80 (2025.01); H01S 5/06 (2006.01); H01S 5/183 (2006.01); H01S 5/20 (2006.01); H10H 20/815 (2025.01);
U.S. Cl.
CPC ...
H10H 20/862 (2025.01); H01S 5/0607 (2013.01); H01S 5/18366 (2013.01); H01S 5/2027 (2013.01); H10H 20/815 (2025.01);
Abstract
A layered structure comprising a substrate having a first deformation. Also one or more device layers forming a device and having a second deformation. A deformation control layer which is pseudomorphic with respect to the substrate and having a third deformation. The deformation control layer is selected such that a sum of the first, second and third deformations matches a target level of deformation. Advantageously the layered structure has a controlled, known deformation which can be compressive, tensile or zero.