Patent ID: 8066892
Filing Date: 2011-11-29
Classification: G11B

Abstract:
1. A method for manufacturing a magnetic write head, comprising: providing a substrate; depositing a material that can be removed by reactive ion etching (RIEable material); forming a first mask structure over the RIEable material, the first mask structure having an opening configured to define a write pole; performing a reactive ion etching to remove portions of the RIEable material that are not protected by the first mask structure; depositing a layer of material that is resistant to chemical mechanical polishing (CMP stop layer); depositing a first magnetic material into the trench formed in the RIEable material to provide a write pole material; performing a chemical mechanical polishing to define a write pole and a trailing edge of the write pole; forming a second mask structure, the second mask structure covering an area over the write pole; performing a material removal process to remove portions of the RIEable layer that are not protected by the second mask structure; removing the second mask structure; depositing a non-magnetic gap layer; and depositing a second magnetic material to form a magnetic shield.