| US 7,593,186 B2 | ||
| P1 write pole with shoulder formation | ||
| Daniel Wayne Bedell, Gilroy, Calif. (US); Hung-Chin Guthrie, Saratoga, Calif. (US); Ming Jiang, San Jose, Calif. (US); Hieu Lam, Milpitas, Calif. (US); Jyh-Shuey Lo, San Jose, Calif. (US); Edward Hin Pong Lee, San Jose, Calif. (US); and Aron Pentek, San Jose, Calif. (US) | ||
| Assigned to Hitachi Global Storage Technologies Netherlands B.V., Amsterdam (Netherlands) | ||
| Filed on Jan. 31, 2005, as Appl. No. 11/46,740. | ||
| Prior Publication US 2006/0171069 A1, Aug. 03, 2006 | ||
| Int. Cl. G11B 5/39 (2006.01); G11B 5/147 (2006.01) | ||
| U.S. Cl. 360—125.47 [360/125.52] | 12 Claims |
| 1. A magnetic disk drive head including a write head, comprising:
a P1 layer which includes an N1 layer and an N3 layer, where said N1 layer has a neck portion and a beveled portion, and said N3 layer has a beveled portion, a straight portion and a main body;
a gap layer having a gap thickness, formed on said P1 layer; and
a P2 layer formed on said gap layer;
wherein said P1 layer includes a shoulder formation which includes said N1 layer neck portion and said N1 layer beveled portion, and said N3 layer beveled portion.
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