Magnetic head having a heater circuit for thermally-assisted...

Details Magnetic head having a heater circuit for thermally-assisted... Magnetic head having a heater circuit for thermally-assisted...

2007-01-30

2007-01-30

Cao, Allen (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Head accessory

Reexamination Certificate

active

11253494

ABSTRACT:
A magnetic head for thermally-assisted writing of data to a disk is disclosed. In one illustrative example, the magnetic head includes a write head element and a heating element which is a resistive infared radiator. The heating element is coupled to at least one via pad which is exposed on an outer surface of the magnetic head. This via pad may be the same pad utilized for the write head element or for a read sensor. The heating element is formed beneath or within the pole tip such that it is able to transfer heat to a portion of the disk before the write head element can write data to it Advantageously, the heater facilitates the writing of data to high coercivity media.

REFERENCES:
patent: 5991113 (1999-11-01), Meyer et al.
patent: 6317280 (2001-11-01), Nakajima et al.
patent: 6493183 (2002-12-01), Kasiraj et al.
patent: 6940691 (2005-09-01), Maat
patent: 2005/0013034 (2005-01-01), Margulies et al.
patent: 2005/0225899 (2005-10-01), Maat
patent: 2006/0028764 (2006-02-01), Lille
patent: 2006/0187583 (2006-08-01), Lou et al.

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