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. 07, 1989
Filed:
May. 02, 1986
Brian F Fitzgerald, Essex Junction, VT (US);
Kim Y Nguyen, Essex Junction, VT (US);
Son V Nguyen, Essex Junction, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A dynamic random access memory is provided wherein each cell has a storage capacitor and switching device and a bit/sense line or plate located along a sidewall of a trench formed in a semiconductor substrate. In a more particular structure of the cell, the trench width defines the length of the switching device, with the storage capacitor and a highly conductive bit/sense line being formed along opposite sidewalls of the trench. In an array of such cells, the highly conductive bit/sense line or plane interconnecting a large number of the cells of the array extends continuously from cell to cell within the trench at a sidewall thereof. Likewise, the storage capacitors of these many cells have a highly conductive common plate extending continuously within the trench at the opposite sidewall.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile