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:
Apr. 25, 1995
Filed:
May. 21, 1993
Satoru Takase, Yokohama, JP;
Tohru Furuyama, Tokyo, JP;
Donald C Stark, Zushi, JP;
Natsuki Kushiyama, Yokohama, JP;
Kiyofumi Sakurai, Yokohama, JP;
Hiroyuki Noji, Kawasaki, JP;
Shigeo Ohshima, Menlo Park, CA (US);
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A semiconductor memory device includes a silicon chip and sub-arrays formed in the chip. In each of the sub-arrays, memory cells arranged in a matrix form, word lines provided for respective rows of each of the sub-arrays, and bit lines provided for respective columns of each of the sub-arrays are arranged. Further, in the chip, amplifier groups for amplifying data read out from the memory cells are arranged for the respective sub-arrays. Amplifiers connected to respective bit lines are provided in the amplifier groups and the amplifiers each have a function of continuously holding data read out from the memory cell.