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:
May. 03, 1977
Filed:
May. 16, 1975
Applicant:
Inventor:
George Marr, Cupertino, CA (US);
Assignee:
Burroughs Corporation, Detroit, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
3401 / ; 307238 ; 307246 ;
Abstract
A dynamic capacitive memory cell having a storage node formed at the common junction of a fixed access capacitor and two MOS voltage variable capacitors. Data represented in the form of stored charge is written into the storage node through the fixed access capacitor under control of one of the MOS voltage variable capacitors and read out of the memory cell by a sensing device connected between the other voltage variable capacitor and ground. In another memory cell, one of the MOS voltage variable capacitors is replaced by an MOS transistor for preventing excess charge accumulation at the storage node.