Corrosion Resistant Magenetoresistive Devices
Original Publication Date: 1980-May-01
Included in the Prior Art Database: 2005-Feb-13
The corrosion problem of permalloy film devices is well known. As an example, a magnetoresistive (MR) head which utilizes a thin film (300 to 500 Angstrom thickness) suffers from corrosion, since the permalloy is exposed to ambient conditions. Passivation of such devices is difficult because the head element has to be exposed to ambient conditions for efficient sensing.