Patent ID: 7627942
Filing Date: 2009-12-08
Classification: G11B,Y10T

Abstract:
1. A method of fabricating a thin film magnetic head on a wafer comprising: patterning turns of a coil on a surface, the turns of the coil having a first thickness; depositing an encapsulation material on the coil by a chemical vapor deposition process comprising reacting a metal or silicon compound precursor with a surface of the coil in a system, purging the metal or silicon compound precursor from the system and then exposing the surface of the wafer to a precursor in the system to form the encapsulation material as a compound that includes the metal or silicon in addition to oxygen or nitrogen, the encapsulation material being deposited as an ultra-conforming film over the wafer with a minimum second thickness that is less than the first thickness, the encapsulation material having a third thickness between the turns of the coil and filling gaps between the turns of the coil without leaving voids, the third thickness being greater than the first thickness; depositing an insulating material over the encapsulation material by sputtering, the insulating material having a minimum fourth thickness that is greater than the minimum second thickness filling the wafer to a predetermined level with insulating material; and planarizing the wafer exposing the encapsulation material between the turns of the coils by removing the insulating material from above the encapsulation material between the turns of the coils.