Patent ID: 6819527
Filing Date: 2004-11-16
Classification: G11B,Y10T

Abstract:
A magnetic head, comprising:a first magnetic pole layer; a write gap layer being formed on said first magnetic pole layer; a P2 pole tip being formed in a pole tip layer on said write gap layer; a plurality of lower helical coil traces being formed in said pole tip layer; a first insulator layer being formed on said lower coil traces; a yoke being formed on said first insulator layer, said yoke having lateral side edges, and being formed such that end portions of said lower helical coil traces extend outward beyond said lateral side edges of said yoke; a second insulator layer being formed at said lateral side edges of said yoke and above said end portions of said lower helical coil traces; a third insulator layer being formed on top of said yoke; a fourth insulator layer having a central portion that is formed upon said third insulator layer and side portions that are formed upon said second insulator layer; a plurality of upper helical coil traces being formed within said fourth insulator layer and on top of said third insulator layer, such that lateral ends of said upper helical coil traces project outward above said lateral end portions of said lower helical coil traces; a plurality of vertical interconnect lines being formed within said first, second and fourth insulator layers between said projecting ends of said upper helical coil traces and said end portions of said lower helical coil traces, wherein said upper helical coil traces and said vertical interconnect lines are integrally formed with a continuity of the same material composition throughout said vertical interconnect lines and said upper helical coil traces.