Magnetic head device using printed circuit techniques

Claim 1

A magnetic head comprising: a semiconductor substrate; a plurality of elongated substantially parallel and coplanar first conductors formed in and contiguous with the surface of said substrate by diffusion or implantation and defining substantially one half of a magnetic coil; a first magnetic material layer evaporated on said substrate, said first layer including an elongated central portion extending over and insulated from said plurality of first coil half conductors and an elongated first end portion extending substantially normally to said elongated central portion; a plurality of elongated substantially parallel and coplanar second conductors formed on said substrate, each second conductor extending over and insulated from said central portion of said first magnetic material layer between and in contact with one end portion of one first coil half conductor and an opposite end portion of a next adjacent first coil half conductor to form a second half of said magnetic coil; a non-magnetic material formed over said first end portion of said first magnetic material layer to a depth which defines a magnetic head gap; and a second magnetic material layer formed on said substrate and having one end portion extending over said non-magnetic material layer and said first end portion of said first magnetic material layer and a second end portion extending over a second end portion of said first magnetic material layer, said first and second magnetic material layers being magnetically coupled to each other at their respective end portions, the first end portions of said magnetic material layers and the interposed non-magnetic material defining a magnetic head face for magnetic engagement with a magnetic recording/reproducing medium.