Insulation layer structure for inductive write heads and method of fabrication
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United States of America Patent
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Oct 25, 2005
Grant Date -
N/A
app pub date -
Dec 21, 2000
filing date -
Dec 21, 2000
priority date (Note) -
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Abstract
A computer disk drive (22) having a write head (52) which includes a coil (38), a photoresist insulation layer (66) formed on the coil (38), and an insulation shell layer (102) which is formed on the photoresist insulation layer (66). In the first preferred embodiment (100), the top pole (42) of the write head (52) is formed on the insulation shell layer (102). In the second preferred embodiment (200), the disk drive write gap (76) is formed on the insulation shell layer (102) and the top pole (42) of the write head (52) is formed on the write gap (76). The insulation shell layers (102) in both embodiments are preferably made of dielectric materials (103). Methods of fabrication for these embodiments are also disclosed.
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