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:
Jun. 15, 2010
Filed:
Feb. 15, 2008
Takashi Sakoh, Kanagawa, JP;
Mami Toda, Kanagawa, JP;
Takashi Sakoh, Kanagawa, JP;
Mami Toda, Kanagawa, JP;
NEC Electronics Corporation, Kanagawa, JP;
Abstract
A semiconductor memory device has bit lines, capacitors, bit contacts and capacitor contacts, wherein the bit lines are provided over a semiconductor substrate, the bit lines are connected to the semiconductor substrate through the bit contacts, the capacitors are connected to the semiconductor substrate through the capacitor contacts, and wherein in two adjacent bit lines, pitch d(first pitch) representing a pitch of portions provided with the capacitor contacts is larger than pitch d(second pitch) representing a pitch of portions provided with the bit contacts, and distance dbetween two such bit lines in the portions provided with the bit contacts is larger than width dof the bit lines in the portions provided with the bit contacts.