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:
Aug. 12, 2008
Filed:
Aug. 17, 2006
Kohji Inoue, Ikoma, JP;
Kohji Inoue, Ikoma, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a semiconductor storage device with cross point type arrays of memory cells including variable resistor elements, a selected data line and unselected data lines are supplied with a row selecting potential and a row unselecting potential through a data line selecting transistor respectively, a selected bit line and unselected bit lines are supplied with a column selecting potential and a column unselecting potential through a bit line selecting transistor respectively. Data lines and bit lines are separately driven so that when the data line selecting transistor is higher in the current driving capability than the bit line selecting transistor, a second bias voltage between the row unselecting potential and column selecting potential is lower than a first bias voltage between the row selecting potential and column unselecting potential, in the opposite case, the first bias voltage is lower than the second voltage.