Thin film magnetic head substrate with lapping process...

Details Thin film magnetic head substrate with lapping process... Thin film magnetic head substrate with lapping process...

2007-04-09

2010-10-26

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S121000, C029S603100

Reexamination Certificate

active

07821744

ABSTRACT:
A thin film magnetic head substrate includes a plurality of head element portions having read elements and write elements in rows. Adjacent head element portions interpose a read monitor element and a write monitor element that are used as element resistance monitors for the read element and the write element when a lapping process is performed to form a medium-facing surface on the head element portion. A common electrode terminal is connected with the read monitor element and the write monitor element. A pair of individual electrode terminals are each connected to the read monitor element and the write monitor element, respectively.

REFERENCES:
patent: 5816890 (1998-10-01), Hao et al.
patent: 6884148 (2005-04-01), Dovek et al.
patent: 2005-317069 (2005-11-01), None
Office Action issued in corresponding Japanese Patent Application No. 2006-107397; issued May 27, 2008.

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