Patent ID: 6292329
Filing Date: 2001-09-18
Classification: G11B,Y10T

Abstract:
A thin-film, single magnetic pole, magnetic head, comprising:a thin film main magnetic pole made of a soft magnetic thin film, said main magnetic pole extending from a rear end to a forward end at a magnetic recording medium facing surface thereby to extend substantially perpendicular to said magnetic recording medium facing surface;a thin film return yoke under said magnetic pole; anda thin-film coil for energizing the main magnetic pole, said coil comprising overlying first through third thin film conductor layers in that order,said conductor layers extending substantially parallel to one another,said conductor layers being layered with portions extending on both sides of the main magnetic pole and thereby extending substantially at a right angle to said main magnetic pole,said conductor layers layered in an up-and-down relationship relative to said yoke and said magnetic pole with said first conductor layer closer to said yoke than said third conductor layer,said conductor layers being selectively interconnected so as to be connected in series,said conductor layers being arranged in the vicinity of said magnetic recording medium facing surface, andlateral edges of said conductor layers facing the magnetic recording medium facing surface,wherein,as measured from said rear end to said magnetic recording medium face, said second conductor layer is wider than said third conductor layer and said first conductor layer is wider than said second conductor layer.