Write head with modified side shields
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United States of America Patent
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Mar 3, 2015
Grant Date -
Jan 23, 2014
app pub date -
May 9, 2013
filing date -
Mar 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.
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