Invention Grant
US08347489B2 Method for manufacturing a perpendicular magnetic write head having a leading edge tapered write pole, self aligned side shield and independent trailing shield 有权
用于制造具有前缘锥形写极,自对准侧屏蔽和独立后屏蔽的垂直磁写头的方法

Method for manufacturing a perpendicular magnetic write head having a leading edge tapered write pole, self aligned side shield and independent trailing shield
Abstract:
A method for manufacturing a magnetic write head having a tapered write pole as well as a leading edge taper, and independent trailing and side magnetic shields. The method allows the write pole to be constructed by a dry process wherein the write pole material is either deposited by a process such as sputter deposition or electrically plated and the write pole shape is defined by masking and ion milling. The write pole has a stepped feature that can either be used to provide increased magnetic spacing between the trailing shield and the write pole at a location slightly recessed from the ABS or can be magnetic material that increases the effective thickness of the write pole at a location slightly recessed from the ABS. A bump structure can be further built over that stepped feature to enhance field gradient as well as reduce trailing shield saturation.
Information query
Patent Agency Ranking
0/0