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.

Date of Patent:
May. 17, 2016

Filed:

Mar. 06, 2014
Applicant:

Microchip Technology Incorporated, Chandler, AZ (US);

Inventors:

Traian Bontas, Bacau, RO;

Claudiu-Dumitru Nechifor, Iasi, RO;

Iulian Dumitru, Bucharest, RO;

Kent Hewitt, Chandler, AZ (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/02 (2006.01); G11C 11/00 (2006.01); G11C 13/00 (2006.01); G11C 7/06 (2006.01); G11C 14/00 (2006.01); G11C 17/16 (2006.01); G11C 17/18 (2006.01);
U.S. Cl.
CPC ...
G11C 13/004 (2013.01); G11C 7/065 (2013.01); G11C 13/0007 (2013.01); G11C 13/0011 (2013.01); G11C 14/009 (2013.01); G11C 17/165 (2013.01); G11C 17/18 (2013.01);
Abstract

By arranging both a conductive and non-conductive resistive memory cell in a cross coupled arrangement to facilitate reading a data state the memory cells can have very small differences in their resistance values and still read correctly. This allows both of the memory cells' resistances to change over time and still have enough difference between their resistances to read the desired data state that was programmed. A pair of ReRAM or CBRAM resistive memory devices are configured as a one bit memory cell and used to store a single data bit wherein one of the resistive memory devices is in an ERASE condition and the other resistive memory devices of the pair is in a WRITE condition. Reading the resistance states of the resistive memory device pairs is accomplished without having to use a reference voltage or current since a trip-point is between the conductive states thereof.


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