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:
Aug. 13, 1991
Filed:
Jul. 28, 1989
Applicant:
Inventor:
Raghavan K Pisharody, Palo Alto, CA (US);
Assignee:
Ampex Corporation, Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
505-1 ; 365161 ; 505701 ; 505703 ;
Abstract
A thin film magnetic array memory affords relatively high packing densities while avoiding the problem of magnetic domain creep through the use of thin films of superconducting material disposed on the work lines of the memory. The superconducting films shunt magnetic fields generated by currents carried within the word lines and prevent these fields from adversely affecting adjacent memory cells in the array. By constraining the magnetic fields with the use of the superconducting films, the word lines can be packed close to one another in the array structure, thereby increasing the amount of information that can be stored in a unit area of the array.