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:
Sep. 14, 2010
Filed:
Jun. 24, 2008
Yoshiro Riho, Tokyo, JP;
Hayato Oishi, Tokyo, JP;
Yoshinori Haraguchi, Tokyo, JP;
Yoshinori Matsui, Tokyo, JP;
Yoshiro Riho, Tokyo, JP;
Hayato Oishi, Tokyo, JP;
Yoshinori Haraguchi, Tokyo, JP;
Yoshinori Matsui, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A semiconductor device includes a column decoder that generates a column selecting signal that selects any of a plurality of bit line pairs to which memory cells are connected according to a column address that is input; a bit line selecting switch that connects by the column selecting signal any of a plurality of bit line pairs and a data I/O line pair that outputs data that has been read from a memory cell to the outside; a data amplifier that amplifies a voltage differential of a data I/O line pair and outputs data that has been read to an output buffer; a data I/O line switch that is provided in the data I/O lines; an I/O line precharge circuit that precharges a data I/O line pair that is not on the side of the data amplifier; and an amplifier precharge circuit that precharges a data I/O line pair that is on the side of the data amplifier.