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:
Mar. 01, 2011
Filed:
Nov. 24, 2008
Andrew E. Horch, Seattle, WA (US);
Andrew E. Horch, Seattle, WA (US);
T-RAM Semiconductor, Inc., Mountain View, CA (US);
Abstract
A semiconductor device may comprise a plurality of memory cells. A memory cell may comprise a thyristor, at least a portion of which is formed in a pillar of semiconductor material. The pillar may comprise sidewalls defining a cylindrical circumference of a first diameter. In a particular embodiment, the pillars associated with the plurality of memory cells may define rows and columns of an array. In a further embodiment, a pillar may be spaced by a first distance of magnitude up to the first diameter relative to a neighboring pillar within its row. In an additional further embodiment, the pillar may be spaced by a second distance of a magnitude up to twice the first diameter, relative to a neighboring pillar within its column.