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:
May. 17, 2016
Filed:
Mar. 06, 2013
International Business Machines Corporation, Armonk, NY (US);
Chung H. Lam, Peekskill, NY (US);
Jing Li, Ossining, NY (US);
Edward W. Kiewra, North Creek, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A memory array and a method for electrically coupling memory cell access devices to a word line. The memory array includes a source line electrically coupled to each source terminal of the memory cell access devices. The memory array also includes a first set of at least two vertical pillars positioned above and electrically coupled to the source line. A second set of vertical pillars electrically isolated from the source line and positioned such that the source line does not extend below the second set of vertical pillars is also included. Furthermore, gate terminals of the memory cell access devices laterally surround the first set of vertical pillars and the second set of vertical pillars. Finally, a first word line contact is positioned between two of the second set of vertical pillars. The first word line contact is electrically coupled to the gate terminals.