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:
Jun. 23, 2026
Filed:
Apr. 01, 2024
Globalfoundries U.s. Inc., Malta, NY (US);
Yarong Lin, Flushing, NY (US);
Thomas Houghton, Marlboro, NY (US);
Teck Jung Tang, Ballston Lake, NY (US);
Mini Modh Ghosal, Maharashtra, IN;
Arunraj Prakash, Karnataka, IN;
GlobalFoundries U.S. Inc., Malta, NY (US);
Abstract
Structures including a photonic device, such as a spot-size converter, and an undercut, and related methods. The structure comprises a photonic device, a semiconductor substrate, and a dielectric layer disposed between the photonic device and the semiconductor substrate. The dielectric layer includes a plurality of D-shaped openings that are laterally offset from the photonic device, and each of the plurality of D-shaped openings has a first sidewall portion that is curved and a second sidewall portion that is substantially planar.