Varying data writer side shield gap distal the ABS

摘要

A data writing element may be configured at least with a write pole positioned adjacent a first shield along a first axis and adjacent a second shield along a second axis. The second shield may be separated from the write pole by a first gap distance on an air bearing surface (ABS) and by a second gap distance distal the ABS with the first and second gap distances meeting at a transition surface oriented parallel to the ABS.

主权项

1. An apparatus comprising a write pole adjacent a side shield along a first axis, the side shield having first and second shield sub-layers having different magnetic flux densities and contacting at a first transition surface oriented parallel to an air bearing surface (ABS), the first transition surface separating the first shield sub-layer from the second shield sub-layer, the second sub-layer being separated from the ABS and comprising a lower magnetic flux density than the first shield sub-layer.