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Giant magnetoresistive sensor

United States Patent

December 14, 1999
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A magnetoresistive sensor element with a three-dimensional micro-architecture is capable of significantly improved sensitivity and highly localized measurement of magnetic fields. The sensor is formed of a multilayer film of alternately magnetic and nonmagnetic materials. The sensor is optimally operated in a current perpendicular to plane mode. The sensor is useful in magnetic read/write heads, for high density magnetic information storage and retrieval.
Stearns; Daniel G. (Los Altos, CA), Vernon; Stephen P. (Pleasanton, CA), Ceglio; Natale M. (Livermore, CA), Hawryluk; Andrew M. (Modesto, CA)
The United States of America as represented by the United States (Washington, DC)
08/ 202,991
February 28, 1994
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.