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:
Jun. 10, 2014
Filed:
Jan. 26, 2012
Mizuki Kaneko, Yokohama, JP;
Tomoki Higashi, Yokohama, JP;
Tomonori Kurosawa, Zama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a resistance-change memory includes bit lines, word lines, a memory cell array including memory cells arranged at intersections between the bit lines and the word lines, each of the memory cells including a variable-resistance element and a diode, a control circuit configured to apply a reverse bias to the diode, and to write data to a selected memory cell, and a current limiting circuit configured to limit a current flowing to the selected memory cell in a write. The current limiting circuit controls the current flowing to the selected memory cell not to exceed a second compliance current obtained by adding a leakage current from an unselected memory cell to a predetermined first compliance current.