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:
Nov. 16, 2010
Filed:
Nov. 28, 2008
Chiaki Dono, Tokyo, JP;
Yasuji Koshikawa, Tokyo, JP;
Chiaki Dono, Tokyo, JP;
Yasuji Koshikawa, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A semiconductor memory device with low power consumption and improved transfer rate of an input/output buffer at reduced manufacturing cost is provided. Thick-film transistors are used for a memory cell array, a row decoder, and a sense amplifier, surrounded by a bold broken line. Thick-film transistors having a threshold voltage lower than the aforementioned transistors are used for input bufferstoand an input/output buffer, surrounded by a bold line. Thin-film transistors are used for a clock generator, a command decoder, a mode register, a controller, a row address buffer and refresh counter, a column address buffer and burst counter, a data control circuit, a latch circuit, a DLL, and a column decoder