Patent ID: 7116516
Filing Date: 2006-10-03
Classification: G11B,Y10T

Abstract:
1. A method for forming a magnetic head, comprising the steps of: forming a first magnetic pole upon an insulator layer; forming a write gap layer upon said first magnetic pole; forming a plurality of lower helical coil traces upon said write gap layer; forming a yoke portion of a second magnetic pole above said lower helical coil traces; forming an etch stop layer upon said yoke; forming an etchable layer upon said etch stop layer; forming trenches for upper helical coil traces within said etchable layer and forming vias for vertical interconnect lines, wherein said trenches and vias are fabricated utilizing a single reactive ion etch (RIE) process step; forming a plurality of upper helical coil traces above said yoke and within said trenches, and forming a plurality of vertical interconnect lines within said vias between said upper helical coil traces and said lower helical coil traces, wherein said upper helical coil traces and said vertical interconnect lines are fabricated in a single process step, such that they are integrally formed; whereby said lower helical coil traces, said vertical interconnect lines and said upper helical coil traces are electrically connected to form a helical coil that surrounds said yoke.