| US 7,392,578 B2 | ||
| Thin film magnetic head and manufacturing method thereof | ||
| Yoshitaka Sasaki, Milpitas, Calif. (US); and Takehiro Kamigama, Kwai Chung (Hong Kong Special Administrative Region of the People's Republic of China, The) | ||
| Assigned to Headway Technologies, Inc., Milpitas, Calif. (US); and SAE Magnetics (H.K.) Ltd., Shatin, N.T. (Hong Kong Special Administrative Region of the People's Republic of China, The) | ||
| Filed on May 15, 2007, as Appl. No. 11/748,919. | ||
| Application 11/748919 is a division of application No. 10/782930, filed on Feb. 23, 2004, granted, now 7,239,479. | ||
| Prior Publication US 2007/0214635 A1, Sep. 20, 2007 | ||
| Int. Cl. G11B 5/127 (2006.01) | ||
| U.S. Cl. 29—603.15 [29/603.14; 360/122; 360/125.46] | 7 Claims |
| 1. A method for manufacturing a thin film magnetic head with a write element, the method comprising:
connecting a first yoke portion and a second yoke portion to each other by a back gap portion;
disposing a first pole portion and a second pole portion in a medium-facing surface side of the first yoke portion and the
second yoke portion respectively;
forming a coil surrounding in a spiral form the back gap portion above the first yoke portion;
forming a part of which the first pole portion is composed of so that said part extends to cover the upper surface of the
coil;
forming a gap film on the first pole portion, wherein the gap film is disposed between the first pole portion and the second
pole portion and includes a non-magnetic metal film or an inorganic insulating film that extends from the medium-facing surface
side and covers one surface of the coil facing the second pole portion; and
trimming the first pole portion so as to have a width fitting the second pole portion.
|