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:
Sep. 03, 2013
Filed:
Mar. 02, 2009
Gregory Kengho Chen, Ann Arbor, MI (US);
Dennis Michael Sylvester, Ann Arbor, MI (US);
David Theodore Blaauw, Ann Arbor, MI (US);
Gregory Kengho Chen, Ann Arbor, MI (US);
Dennis Michael Sylvester, Ann Arbor, MI (US);
David Theodore Blaauw, Ann Arbor, MI (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
An integrated circuit memoryis provided with an array of memory cellsand power supply circuitry. Detected operating errors in malfunctioning memory cellsare identified using a built-in-self-test controller. The power supply circuitryis then configured to alter the voltage supply to the malfunctioning memory cellsin an attempt to correct their operation. The voltage supply of the row containing the malfunctioning memory cell and the column containing the malfunctioning memory cell may both be altered. The voltage alteration may be an increase or a decrease in voltage supply depending upon the nature of the malfunction detected.