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:
Feb. 25, 2025
Filed:
Oct. 05, 2022
Applicant:
Rockley Photonics Limited, Altrincham, GB;
Inventors:
Hua Yang, Cork, IE;
Mohamad Dernaika, Cork, IE;
Frank Peters, Cork, IE;
Guomin Yu, Glendora, CA (US);
Assignee:
Rockley Photonics Limited, Altrincham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/02 (2006.01); B41F 16/00 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
B41F 16/0066 (2013.01); H01L 21/6835 (2013.01); H01L 2221/68318 (2013.01); H01L 2221/68363 (2013.01);
Abstract
A source wafer for use in a micro-transfer printing process. The source wafer comprising: a wafer substrate; a photonic component, provided in a device coupon, the device coupon being attached to the wafer substrate via a release layer; and one or more etch stop layers, located between the photonic component and the wafer substrate.