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:
Mar. 22, 2005
Filed:
Apr. 03, 2003
Shinzo Sakuma, Tokyo, JP;
Shinzo Sakuma, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A memory cell array includes ferroelectric memory cells arranged in the form of m rows and n columns, bit lines provided along a row direction, and word lines and plate lines provided along a column direction. The word lines are provided side by side so as to intersect each other at the border between the fourth row and the fifth row. The arrangement allows the connecting of four ferroelectric memory cells to the same plate line and the same word line. Since the number of ferroelectric memory cells to be accessed simultaneously will be one-half of the number of memory cells provided in one row, unnecessary access to the ferroelectric memory cells can be reduced, thereby deterioration of the ferroelectric memory cells can be suppressed.