Method and apparatus for testing a magnetic head during manufact

Details Method and apparatus for testing a magnetic head during manufact Method and apparatus for testing a magnetic head during manufact

1996-10-17

1998-12-29

Patidar, Jay M.

Electricity: measuring and testing

Magnetic

Magnetic information storage element testing

324263, 324212, G01R 3312

Patent

active

058545549

ABSTRACT:
A method and apparatus for testing a magnetic head provided with at least one MR transducer. The method includes a step of applying a sense current varying with respect to time to the MR transducer element via input/output terminals of the MR transducer element, and a step of measuring a terminal voltage across the input/output terminals of the MR transducer element to check varying resistance characteristics of the MR transducer element with respect to the variation of the applied sense current.

REFERENCES:
patent: 3706926 (1972-12-01), Barrager et al.
patent: 5668477 (1997-09-01), Mahmoudian et al.
patent: 5696445 (1997-12-01), Inbar

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