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:
Aug. 30, 2022
Filed:
Nov. 30, 2020
International Business Machines Corporation, Armonk, NY (US);
Praneet Adusumilli, Somerset, NJ (US);
Anirban Chandra, Troy, NY (US);
Takashi Ando, Eastchester, NY (US);
Cheng Chi, Jersey City, NJ (US);
Reinaldo Vega, Mahopac, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mushroom-type Phase-Change Memory (PCM) device includes a substrate, a lower interconnect disposed in the substrate, a first dielectric layer disposed on the substrate, a bottom electrode disposed in the first dielectric layer and extending above an upper surface of the first dielectric layer, a type drift-mitigation liner encircling an upper portion of the bottom electrode extending above the upper surface of the first dielectric layer, a PCM element disposed on the liner and an upper surface of the bottom electrode, a top electrode disposed on the PCM element, and a second dielectric layer disposed on an exposed portion of the first dielectric layer and the top electrode, wherein the second dielectric layer is disposed on sidewalls of the liner, the PCM element, and the top electrode.