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:
Jan. 13, 1987
Filed:
Feb. 25, 1985
Applicant:
Inventors:
Donald G Craycraft, Spring Valley, OH (US);
Giao N Pham, Centerville, OH (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; G11C / ;
U.S. Cl.
CPC ...
307530 ; 307362 ; 365203 ; 365208 ; 365104 ;
Abstract
A sense amplifier for a read only memory array which is formed from a multiplicity of NAND organized FET stacks. The sense amplifier compares the current sinking capacity of a selected bit line stack with that of a reference stackline, the difference being detected as a voltage shift in a differential stage. Pass FETs with gate electrodes biased in inverse proportion to the bit and reference line potentials are serially connected between the corresponding lines and reference nodes.