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:
Jul. 07, 2015
Filed:
May. 30, 2014
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Michael R. Seningen, Austin, TX (US);
Michael E. Runas, Austin, TX (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/50 (2006.01); G11C 7/06 (2006.01); G11C 11/41 (2006.01); G11C 29/12 (2006.01);
U.S. Cl.
CPC ...
G11C 29/50 (2013.01); G11C 7/06 (2013.01); G11C 11/41 (2013.01); G11C 29/12 (2013.01); G11C 2029/1204 (2013.01); G11C 2029/5002 (2013.01);
Abstract
Embodiments of a memory are disclosed that may allow for the detection of weak data storage cells or may allow operation of data storage cells under conditions that may represent the effects of transistor ageing. The memory may include data storage cells, a column multiplexer, a sense amplifier, and a current injector. The current injector may be configured to generate multiple current levels and may be operable to controllably select one of the current levels to either source current to or sink current from the input of the sense amplifier.