Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent
1989-07-11
1990-07-31
James, Andrew J.
Stock material or miscellaneous articles
Composite
Of bituminous or tarry residue
428693, 365158, 365173, G11C 1115
Patent
active
049453971
ABSTRACT:
A magnetic, solid state memory cell or sensor includes a magnetoresistive, ferromagnetic layer and a resistive layer overlying the magnetoresistive layer. The resistivity and dimensions of the resistive layer are such that, preferably, only a small fraction of any sense current flowing through the cell or sensor will flow between input and output contacts by way of the resistive layer, yet the magnitude of the sense current will not be reduced below a desired signal level due to the presence of the resistive layer. The resistive layer is comprised of a material which will not diffuse into the magnetoresistive layer. A compound or mixture of a metal and either nitrogen or oxygen, such as tantalum and nitrogen, is perferred as the resistive layer. It is also preferred that the resistive layer be nonmagnetic.
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Honeywell Inc.
James Andrew J.
Nguyen Viet Q.
Udseth W. T.
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