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. 04, 1997
Filed:
Feb. 20, 1996
Applicant:
Inventor:
Donald M Kenney, Shelburne, VT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257296 ; 257303 ; 257304 ;
Abstract
A DRAM one device cell and an associated precharge circuit are integrated together in a novel structure having an area of only four square features. The structure also provides physical and electrical separation between adjacent cells along a direction parallel to the DRAM word lines. The DRAM bit line length per bit is reduced by 50% relative to a conventional planar integrated structure disclosed elsewhere. As a result, bit line capacitance is also substantially reduced, and the effectiveness of a precharge technique for reduction of DRAM power consumption is enhanced by the dense novel structure.