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. 01, 2026
Filed:
Feb. 20, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Huan-Chieh Chen, Taichung, TW;
Yao-Wen Chang, Taipei, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A phase-change material (PCM) switching device includes: a base dielectric layer; a spreader element disposed in the base dielectric layer, wherein the spreader element extends in a first horizontal direction and comprises: a central portion extending in the first horizontal direction and having a first width in a second horizontal direction perpendicular to the first horizontal direction; a first end portion at a first end of the central portion and having a second width in the second horizontal direction; and a second end portion at a second end of the central portion and having a third width in the second horizontal direction, and wherein at least one of the second width and the third width is larger than the first width; a heater element disposed over the spreader element; a thermal barrier element disposed on the heater element; and a PCM layer disposed on the thermal barrier element.