Patent Number: 7,612,964

Title: Magnetic write head having a self aligned, steep shoulder pole structure and method of manufacture thereof

Abstract: A magnetic write head and method of manufacture thereof that has a first pole structure having a notched structure configured with a steep shoulder portion and a narrow vertical notch portion extending from the top of the steep shoulder portion. The write head also includes a second pole structure (P2) that has a very narrow width (track width) and that is self aligned with the narrow vertical notch structure of the first pole structure. The write head provides excellent magnetic properties including a very narrow track width and minimal side writing, while avoiding magnetic saturation of the poles.

Inventors: Bedell; Daniel Wayne (Gilroy, CA), Lam; Hieu (Milpitas, CA), Lee; Kim Y. (Fremont, CA), Lo; Jyh-Shuey (San Jose, CA)

Assignee: Hitachi Global Storage Technologies Netherlands B.V.

International Classification: G11B 5/187 (20060101)

Expiration Date: 1/03/02017