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. 02, 2015
Filed:
Feb. 25, 2013
International Business Machines Corporation, Armonk, NY (US);
Mukta G. Farooq, Hopewell Junction, NY (US);
Eren Kursun, Ossining, NY (US);
Gary W. Maier, Poughkeepsie, NY (US);
Bipin Rajendran, New York, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A three dimensional (3D) stack of phase change memory (PCM) devices which includes PCM devices stacked in a 3D array, the PCM devices having memory regions; a memory management unit on at least one of the PCM devices; a stack controller in the memory management unit to monitor an ambient device temperature (T) with respect to a neighborhood of memory regions in the PCM devices and to adjust a programming current with respect to at least one of the memory regions in the neighborhood of memory regions in accordance with the T. Also disclosed is a method of programming a PCM device.