Patent ID: 6034848
Filing Date: 2000-03-07
Classification: G11B,Y10T

Abstract:
A merged thin film magnetic head having a pole tip region, a yoke region and a back gap region, said yoke region having a pole tip end and a back gap end, comprising:a first shield layer;a combined second shield and bottom pole piece layer overlaying and magnetically coupled with said first shield layer at said pole tip end of said yoke region, and overlaying and magnetically coupled with said first shield layer at said back gap region;a read sensor disposed between said first shield layer and said combined second shield and bottom pole piece layer at said pole tip region;a patterned opening in said combined second shield and bottom pole piece layer at said yoke region thereof for exposing said first shield layer and forming a flat planarization surface thereon;a plurality of stacked thin film coil layers in said patterned opening on said flat planarization surface; anda top pole piece layer overlaying said thin film coil at said yoke region, overlaying said combined second shield and bottom pole piece layer at said pole tip region providing a pole tip and gap thereat, and overlaying said combined second shield and bottom pole piece layer at said back gap region.