Glide head with an outside active rail

Details Glide head with an outside active rail Glide head with an outside active rail

1997-04-02

1999-10-05

Miller, Brian E.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

73105, G11B 560, G01B 528

Patent

active

059633964

ABSTRACT:
A glide head using a slider with an outside active rail is described. In one embodiment, the trailing end of the outside rail extends beyond the trailing end of the inside rail. Thus, during use, the trailing end of the outside rail is closer to the surface of the magnetic disk because of the slope of the glide head's flight. Accordingly, the outside rail is the active rail. The inside rail may be wider than the outside rail to compensate for additional lift created by the greater length of the outside rail. In an alternative embodiment, the trailing end of the outside rail extends beyond the trailing end of the inside rail and there are notches located in the side edges of the rails. The notches do not extend to the forward tapered ends of the rails nor to the trailing ends of the rails. The notches provide additional stability during the slider's flight and decrease the air bearing area of the rails as needed for fly height requirements. In addition, the testing time is minimized by the wide trailing ends of the rails.

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