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:
Feb. 03, 2015
Filed:
Aug. 15, 2013
International Business Machines Corporation, Armonk, NY (US);
Daniel Krebs, Rueschlikon, CH;
Abu Sebastian, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A semiconductor stack for performing at least a logic operation includes adjacent layers arranged in a stacked configuration with each layer comprising at least a phase-change memory cell in which a phase-change material is provided between a heater electrical terminal and at least two further heater electrical terminals, the phase-change material between the heater electrical terminal and each of the two further heater electrical terminals being operable in one of at least two reversibly transformable phases, an amorphous phase and a crystalline phase; wherein the semiconductor stack, when in use, is configurable to store information by way of an electrical resistance of the phase of the phase-change material between each heater electrical terminal and each of the two further heater electrical terminals in each layer, and the logic operation is performed on the basis of the information stored in the adjacent layers.