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METHOD FOR AFC SHIELDS FOR MULTIPLE SENSOR MAGNETIC TRANSDUCERS AND MAGNETIC TRANSDUCERS HAVING MULTIPLE SENSORS AND AFC SHIELDS
专利权人:
Western Digital (Fremont), LLC
发明人:
XIAO RONGFU,HE SHIHAI,MAURI DANIELE,MAO MING,LI SHAOPING
申请号:
US201615219474
公开号:
US2016336030(A1)
申请日:
2016.07.26
申请国别(地区):
美国
年份:
2016
代理人:
摘要:
A method and system provide a magnetic transducer having an air-bearing surface (ABS). The method includes providing a first shield, a first read sensor, an antiferromagnetically coupled (AFC) shield that includes an antiferromagnet, a second read sensor and a second shield. The read sensors are between the first and second shields. The AFC shield is between the read sensors. An optional anneal for the first shield is in a magnetic field at a first angle from the ABS. Anneals for the first and second read sensors are in magnetic fields in desired first and second read sensor bias directions. The AFC shield anneal is in a magnetic field at a third angle from the ABS. The second shield anneal is in a magnetic field at a fifth angle from the ABS. The fifth angle is selected based on a thickness and a desired AFC shield bias direction for the antiferromagnet.
来源网站:
中国工程科技知识中心
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http://www.ckcest.cn/home/

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