Method and system for providing a perpendicular magnetic recording head
View Patent ↗A method and system for providing a magnetic recording transducer having a pole are disclosed. The pole has side(s), a bottom, and a top wider than the bottom. The method and system include providing at least one side gap layer that covers the side(s) and the top of the pole. At least one sacrificial layer is provided on the side gap layer(s). The sacrificial layer(s) are wet etchable and cover the side gap layer(s). The magnetic recording transducer is planarized after the sacrificial layer(s) are provided. Thus, a portion of the side gap and sacrificial layer(s) is removed. A remaining portion of the sacrificial layer(s) is thus left. The method and system also include wet etching the sacrificial layer(s) to remove the remaining portion of the sacrificial layer(s). A wrap around shield is provided after the remaining portion of the sacrificial layer(s) is removed.
1. A magnetic recording transducer comprising:
a pole having at least one side, a bottom, a top wider than the bottom, the top having a bevel therein;
at least one side gap covering the at least one side of the pole;
a self-aligned write gap covering the top of the pole and the at least one side gap; and
a wrap around shield, the self aligned write gap residing between the wrap around shield and the top of the pole and between the wrap around shield and the at least one side gap.
2. The magnetic recording transducer of claim 1 wherein the write gap is a metal write gap.
3. The magnetic recording transducer of claim 1 wherein the write gap is an insulator.
4. The magnetic recording transducer of claim 1 wherein the bevel is a trailing edge bevel.
5. A disk drive comprising:
a slider; and
a head residing on the slider and including a magnetic recording transducer having a pole, at least one side gap, a self-aligned write gap, and a wrap around shield, the pole including at least one side, a bottom, a top wider than the bottom, the top having a bevel therein, the at least one side gap covering the at least one side of the pole, the self-aligned write gap covering the top of the pole and the at least one side gap, the self aligned write gap residing between the wrap around shield and the top of the pole and between the wrap around shield and the side gap.