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. 23, 2009
Filed:
Jul. 21, 2007
John Christopher Arnold, North Chatham, NY (US);
Tricia Breen Carmichael, Windsor, CA (US);
John Christopher Arnold, North Chatham, NY (US);
Tricia Breen Carmichael, Windsor, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for forming a Phase Change Material (PCM) cell structure comprises forming both a lower electrode composed of a PCM layer and a conductive encapsulating upper electrode layer. The PCM is protected from damage by a conductive encapsulating layer. Electrical isolation between adjacent cells is provided by modifying the conductivity of both the PCM layer and the conductive encapsulating upper electrode layer subsequent to deposition thereof, thereby forming high electrical resistance regions between the cells.