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:
Oct. 18, 1988
Filed:
Aug. 12, 1986
Fujitsu Limited, Kanagawa, JP;
Abstract
A semiconductor memory device having data buses for connecting memory cells in memory cell arrays with input/output buffer circuit includes a plurality of memory cell arrays having repetitive patterns. In the device, a plurality of column decoders are adjacent to the memory cell arrays and have repetitive patterns. A portion of the column decoders is displaced from a regular location in the column decoder to a separate location on a substrate of the semiconductor memory device to leave a blank portion in the column decoder. The device also includes an input/output buffer circuit, data buses for connecting the memory cell arrays to the corresponding input/output buffer circuit through spaces outside the column decoders including the blank portion, and conductors for connecting the displaced portion of column decoders located in the separate location to the corresponding memory cell arrays through spaces outside the column decoders including the blank portion.