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:
Oct. 06, 2015
Filed:
Sep. 14, 2012
Applicants:
Jongsun Sel, Los Gatos, CA (US);
Tuan Pham, San Jose, CA (US);
Kazuya Tokunaga, San Francisco, CA (US);
Inventors:
Jongsun Sel, Los Gatos, CA (US);
Tuan Pham, San Jose, CA (US);
Kazuya Tokunaga, San Francisco, CA (US);
Assignee:
SanDisk Technologies Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); H01L 21/8239 (2006.01); H01L 27/115 (2006.01); H01L 27/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/11524 (2013.01); H01L 27/11519 (2013.01); H01L 27/0207 (2013.01);
Abstract
A NAND flash memory chip includes word lines formed by etching through concentric conductive loops and, in the same etch step, etching through a conductive strip to form select lines. A conductive loop forms two word lines which are in different erase blocks and are separately controlled by peripheral circuits.