公开(公告)号：US09972345B1

公开(公告)日：2018-05-15

申请号：US14974743

申请日：2015-12-18

Applicant: Seagate Technology LLC

Inventor： Wei Tian ,  Hauqing Yin ,  Lei Lu ,  Yong Luo ,  Joseph Mundenar

IPC: G11B5/127 ,  G11B5/11

CPC classification number: G11B5/1272 ,  G11B5/112 ,  G11B5/1278

Abstract: A method includes depositing a layer of pole material on a substrate. The layer of pole material has a bottom surface that is adjacent to the substrate and a top surface that is opposite the bottom surface. A masking material is deposited over a portion of the top surface. Material from the pole material unprotected by the masking material is removed to form a write pole having first and second side walls. At least a portion of a trench formed by removal of the material from the layer of pole material is filled with a sacrificial material. The mask and a portion of the write pole at the top surface are removed to form a beveled trailing edge surface. The sacrificial material is then removed. Front shield gap material is deposited over the beveled trailing edge surface and over portions of the side walls.

公开(公告)号：US09286917B1

公开(公告)日：2016-03-15

申请号：US14701187

申请日：2015-04-30

Applicant: Seagate Technology LLC

Inventor： Venkateswara R. Inturi ,  Aly A. Bazama ,  Yong Luo ,  Joseph M. Mundenar

IPC: G11B5/147

CPC classification number: G11B5/147 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/232 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163

Abstract: A write pole may be formed by first depositing a dielectric layer onto a substrate and then patterning the dielectric layer to form a trench with a write pole shape. The trench is subsequently filled with the evaporation deposition of a magnetic material to form a write pole. The trench may have a greater depth dimension than width dimension.

Abstract translation: 可以通过首先将介电层沉积到衬底上，然后对介电层进行构图以形成具有写极形状的沟槽来形成写入极。 随后填充有磁性材料的蒸发沉积以形成写入极。 沟槽可以具有比宽度尺寸更大的深度尺寸。