Method of making a monolithic magnetic read-while-write head...

Details Method of making a monolithic magnetic read-while-write head... Method of making a monolithic magnetic read-while-write head...

2007-09-11

2007-09-11

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S417000, C029S603110, C029S603130, C029S603160, C029S603180, C216S065000, C427S127000, C427S128000, C451S005000, C451S041000

Reexamination Certificate

active

10672880

ABSTRACT:
A method for fabricating a multi-track thin-film magnetoresistive tape head with precisely-aligned read/write track-pairs fabricated on a monolithic substrate wafer is provided. The wafer is fabricated using modified standard thin-film processes for fabricating direct access storage device heads and modified substrate lapping procedures. Gap-to-gap separation within each read/write track-pair is reduced to nearly the thickness of the substrate wafer. Fabricating on both sides of the wafer, may enable hundreds or thousands of head elements to be aligned in one step of the fabrication process while reducing the number of pieces in the completed head assembly.

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