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. 20, 2007
Filed:
Jul. 06, 2004
Masahiro Kamoshida, Yokohama, JP;
Daisaburo Takashima, Yokohama, JP;
Masahiro Kamoshida, Yokohama, JP;
Daisaburo Takashima, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A ferroelectric memory device includes a first bit line, a second bit line provided adjacent to the first bit line, a first memory cell block including a first terminal, a second terminal, and a plurality of memory cells connected in series between the first and second terminals and arranged in a first direction along the first bit line connected to the first terminal by a first block select transistor, a second memory cell block including a plurality of memory cells, and a plurality of first contacts arranged between the first and second memory cell blocks, each first contact connecting the upper electrode and drain or source electrode of one memory cell.