Patent ID: 7024756
Filing Date: 2006-04-11
Classification: G11B,Y10T

Abstract:
1. A method of making a magnetic head assembly, which has a head surface, comprising the steps of: forming a pole piece layer that is recessed from the head surface; forming a reactive ion etchable pole tip forming layer on the pole piece layer; forming an adhesion/stop layer of tantalum (Ta) on the pole tip forming layer; the adhesion/stop layer being commonly reactive ion etchable with the pole tip forming layer; forming a photoresist mask on the adhesion/stop layer with an opening for patterning the adhesion/stop layer and the pole tip forming layer with another opening; reactive ion etching through said opening to form said another opening; forming a pole piece pole tip in said another opening with a top which is above a top of the adhesion/stop layer; and chemical mechanical polishing the top of the pole piece pole tip until the chemical mechanical polishing contacts the adhesion/stop layer.