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:
Mar. 04, 2025
Filed:
Jun. 25, 2021
International Business Machines Corporation, Armonk, NY (US);
Kangguo Cheng, Schenectady, NY (US);
Carl Radens, LaGrangeville, NY (US);
Juntao Li, Cohoes, NY (US);
Ruilong Xie, Niskayuna, NY (US);
Praneet Adusumilli, Somerset, NJ (US);
Oscar van der Straten, Guilderland Center, NY (US);
Alexander Reznicek, Troy, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A ring-shaped heater, system, and method to gradually change the conductance of the phase change memory through a concentric ring-shaped heater. The system may include a phase change memory. The phase change memory may include a bottom electrode. The phase change memory may also include a ring-shaped heater patterned on top of the bottom electrode, the ring-shaped heater including: a plurality of concentric conductive heating layers, and a plurality of insulator spacers, where each insulator spacer separates each conductive heating layer. The phase change memory may also include a phase change material proximately connected to the ring-shaped heater. The phase change memory may also include a top electrode proximately connected to the phase change material.