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:
Nov. 12, 1991
Filed:
Jun. 22, 1990
Taishi Kubota, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A semiconductor memory includes a plurality of semiconductor memory cells formed in a matrix form on a semiconductor substrate, each semiconductor memory cell having a memory cell including a trench capacitor, a bit line, and a word line extending perpendicularly to the bit line. The word lines of semiconductor memory cells adjacent in a direction of the bit lines substantially vertically overlap each other. A method of manufacturing the above semiconductor memory includes the steps of forming a first word line of a given semiconductor memory cell, and forming a second word line of a semiconductor memory cell adjacent to the given semiconductor memory cell in a direction of the bit line on the first word line, so that the second word line overlaps the first word line in a substantially insulated state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile