Patent ID: 6879463
Filing Date: 2005-04-12
Classification: G11B

Abstract:
1. A head slider for use in a disk drive unit, comprising: generally flat air bearing portions formed in parallel on both sides of a surface of the head slider, which flies above a disk medium, at an air outflow end thereof in such a manner that said air bearing portions are raised from a main body of the head slider; a head portion comprising head elements and a first protection film portion for protecting said head elements said head portion being provided adjacent to an air outflow end of one of said air bearing portions; a dummy head portion comprising only a second protection film portion provided adjacent to an air outflow end of another of said air bearing portions, top surfaces of said head portion and said dummy head portion being formed lower by a step with respect to said head slider main body than said top surfaces of said air bearing portions; a third protection film portion formed at said air outflow end adjacent to said first and second protection film portions, said top surfaces of said head portion and said dummy head portion being formed between said top surfaces of said air bearing portions and said third protection film portion; and a protection film disposed on one of said air bearing portions; wherein said first and second protection film portions are orthogonal to said protection film disposed on one of said air bearing portions.