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:
May. 10, 2005
Filed:
Sep. 08, 2004
Koji Hosono, Kanagawa, JP;
Hiroshi Nakamura, Kanagawa, JP;
Koji Hosono, Kanagawa, JP;
Hiroshi Nakamura, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device disclosed herein comprises a memory cell array in which memory cells are connected to word lines, a first voltage generating circuit which generates a first voltage, a second voltage generating circuit which generates a second voltage using the first voltage, a word line selecting circuit which selects at least one of the word lines, a word line voltage supplying circuit which supplies the second voltage to the selected word line through the word line selecting circuit, and a transfer voltage supplying circuit which supplies the first voltage to the word line selecting circuit and stops supplying it to be in a floating state before transferring the second voltage from the word line voltage supplying circuit to the selected word line, in an operation in which the second voltage is supplied to the selected word line after the first voltage is supplied to the word line selecting circuit.