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. 15, 2026
Filed:
Dec. 14, 2023
International Business Machines Corporation, Armonk, NY (US);
Hsianghan Hsu, Yokohama, JP;
Qianwen Chen, Chappaqua, NY (US);
Neng Liu, Albany, NY (US);
John Knickerbocker, Monroe, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A semiconductor structure with bidirectional wafer-level light coupling is provided. In one embodiment, the semiconductor structure includes a bidirectional diffractive grating coupler, where the bidirectional diffractive grating coupler includes a first diffractive grating coupler, a planar waveguide, and a second diffractive grating coupler, a first optical through-silicon via cladding coupled to the first diffractive grating coupler, and a second optical through-silicon via cladding coupled to the first diffractive grating coupler.