Thin film magnetic recording heads and systems and methods for m

Details Thin film magnetic recording heads and systems and methods for m Thin film magnetic recording heads and systems and methods for m

1996-04-19

1999-06-29

Nguyen, Nam

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

20429832, 156345, 2504921, 25049221, 25049222, 2504923, C23C 1454, C23F 102, G21K 510

Patent

active

059164247

ABSTRACT:
Thin-film magnetic recording heads and systems and processes for manufacturing the same are disclosed. In one embodiment, the invention is understood as a focused particle beam system that includes a pattern recognition element and that employs the pattern recognition element to image and analyze the pole-tip assembly footprint of a recording head and that employs a processor to generate instruction signals that direct a focused particle beam to remove selected portions of the recording head and thereby shape the pole-tip assembly of the recording head. The focused particle beam system provides a precision milling device that can employ the coordinate information to mill selectively the recording head and thereby shape the geometry of the pole-tip assembly footprint, including geometries that have contoured surfaces.

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