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:
Jan. 23, 2018
Filed:
Aug. 30, 2016
International Business Machines Corporation, Armonk, NY (US);
John K. DeBrosse, Colchester, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Improved STT MRAM source line configurations are provided. In one aspect, a STT MRAM array includes: a plurality of cells including magnetic tunnel junctions in series with field effect transistors; a plurality of word lines perpendicular to a plurality of bit lines; a plurality of source line segments spanning m+1 of the bit lines, wherein m of the bit lines include regular array bit lines, and wherein at least one other of the bit lines includes an extra bit line that is connected to the source line segments such that the source line segments span the regular array bit lines and the extra bit line. An STT MRAM device and a method for operating an STT MRAM device are also provided.