Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-11-20
2007-11-20
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603110, C029S603130, C029S603150, C029S603180, C360S121000, C360S123090, C360S125330, C360S317000, C427S127000, C427S128000, C451S005000, C451S041000
Reexamination Certificate
active
10936921
ABSTRACT:
A method and system for manufacturing a perpendicular magnetic recording head is disclosed. The method and system include providing a chemical mechanical planarization (CMP) uniformity structure having an aperture therein and forming a perpendicular magnetic recording pole within the aperture. The CMP uniformity structure may include a CMP barrier layer. The method and system further include fabricating an insulator after formation of the perpendicular magnetic recording pole and performing a CMP to remove a portion of the insulator, expose a portion of the perpendicular magnetic recording pole and planarize an exposed surface of the perpendicular magnetic recording head.
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Chen Yingjian
Nease Brant
Sin Kyusik
Yang Danning
Kim Paul D.
Strategic Patent Group
Western Digital (Fremont) , LLC
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