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:
Mar. 04, 2003
Filed:
May. 22, 2001
Jong-Hoon Oh, Fremont, CA (US);
G-Link Technology, Hsin Chu, TW;
Abstract
A method and apparatus for testing memory devices. One embodiment provides a method including receiving a first input data bit having a first polarity, and receiving a second input data bit having a second polarity, wherein the second polarity is the complement of the first polarity. The method also includes writing the first input data bit to a first portion of a plurality of memory cells, writing the second input data bit to a second portion of a plurality of memory cells, and reading data bits from the first and second portions of the plurality of memory cells. An active signal is generated if the data bits read from the first portion of the plurality of memory cells and complements of the data bits read from the second portion of the plurality of memory cells each have the same polarity.