Insulation layer structure for inductive write heads and method of fabrication

摘要

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.