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:
Jan. 31, 2006
Filed:
Jun. 17, 2004
Yukio Tamai, Tenri, JP;
Kohji Inoue, Ikoma, JP;
Teruaki Morita, Kitakatsuragi-gun, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
One end of each variable resistive element, which forms a memory array, in the same row is connected to the same word line and the other end of each variable resistive element in the same column is connected to the same bit line. A first word line voltage is selected and applied to the selected word line, a second word line voltage is selected and applied to the unselected word lines, a first bit line voltage is selected and applied to the selected bit line, and a second bit line voltage is selected and applied to the unselected bit lines. The voltage difference between the first word line voltage and the first bit line voltage is set at a value that is no less than the first voltage difference that changes the resistance value of a variable resistive element, and the voltage difference between the first word line voltage and the second bit line voltage, the voltage difference between the second word line voltage and the first bit line voltage and the voltage difference between the second word line voltage and the second bit line voltage are respectively set at a value that is no greater than the second voltage difference that does not change the resistance value of a variable resistive element.