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. 11, 2010
Filed:
Feb. 05, 2008
Thomas Roehr, Aschheim, DE;
Thomas Roehr, Aschheim, DE;
Qimonda AG, Munich, DE;
Abstract
An integrated circuit including circuitry configured to perform erase and write functions. One embodiment includes a programmable metallization memory cell, a conductive line connected to a first node of the memory cell, and a bitline connected to a second node of the memory cell. The memory device also includes circuitry configured to perform a write operation by applying a first voltage to the conductive line and a second voltage to the bitline, perform an erase operation by applying the second voltage to the conductive line and the first voltage to the bitline, and apply a voltage midway between the first voltage and the second voltage to the conductive line when the write operation and the erase operation are not being performed.