Patent ID: 7397634
Filing Date: 2008-07-08
Classification: G11B,Y10T

Abstract:
1. A magnetic head, comprising: an underlying layer, the underlying layer being electrically insulating; a photoresist layer positioned adjacent the underlying layer and having two opposing sides defining a channel with a plurality of turns, a bottom of the channel extending between the opposing sides being defined by the underlying layer; and a coil structure formed of a conductive material situated in the channel with a plurality of turns; wherein a profile of each of the sides of the photoresist layer that define the channel includes a first segment and a second segment that is contiguous with the first segment, the first segment defining a first angle relative to a plane of deposition of the photoresist layer, the second segment defining a second angle relative to the plane of deposition of the photoresist layer, the second angle being different than the first angle, wherein the first segment of each side of the photoresist layer is positioned below the second segment located contiguously thereto, wherein a height of the first segment of each side of the photoresist layer measured perpendicular to the plane of deposition of the photoresist layer extends from the underlying layer to a point between 20% and 80% of a total channel height from a top of the channel.