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:
Feb. 14, 1995
Filed:
Mar. 28, 1994
Craig S Lage, Austin, TX (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A ferromagnetic memory circuit (10) and a ferromagnetic memory device (15) which has a substrate (42). Within the substrate (42), a first current electrode (44) and a second current electrode (46) are formed. A control electrode (50) is formed to control current flow between the first and second current electrodes (44 and 46). A ferromagnetic region (68) is used to store a logic value via magnetic flux. Two conductive layers (62 and 70) and a conductive spacer (78) form a sense conductor for device (15). The sense conductor is used to externally provide the logic value stored in the device (15). A conductive layer (82) forms a program/erase line for altering the logic value stored in the device (15). A logic one or a logic zero is stored in ferromagnetic region (68) depending upon a direction and a magnitude of current flow through conductive layer (82).