Laminated, high frequency, magnetic transducer and manufacturing method therefor

A magnetic transducer for reproducing and/or recording high frequency signals with a magnetic tape medium, comprising:

• a first magnetic core element and a second magnetic core element together forming a generally Y-shaped configuration when opposed face-to-face, each magnetic core element comprising:
• a. a plurality of thin alternate layers of magnetic material and insulation material;
• b. an outer insulation layer disposed on the outer surface of said core element;
• c. an outer conductor disposed on said outer insulation layer;
• d. an inner conductor disposed on the inner surface of said core element and including a segment in the outwardly extending arm portion of the one-half of the Y-shape;
• e. a solid, magnetic material pole tip operably disposed on the distal end of the arm portion of said core element over said segment;
• and
• f. a substrate backing said core element including said outer conductor and a portion of said pole tip;
• an insulation gap layer disposed between said first and second magnetic core elements;
• bonding means to maintain said first and second magnetic core elements in said Y-shaped configuration around said insulation gap layer;
• and
• means for electrically interconnecting said inner and outer conductors of said first and second magnetic core elements for forming a signal coil.

A magnetic transducer for reproducing and/or recording high frequency signals with a magnetic tape medium, comprising:

• first and second magnetic core elements together forming a generally Y-shaped configuration when opposed face-to-face, each magnetic core element comprising:
• a. a substrate having a core configuration defining surface including a first generally planar surface and a second generally planar surface contiguous with said first surface at an angle thereto, said substrate further including a pole tip surface contiguous with said second surface and defining a plane generally parallel to said first surface;
• b. a first conductor layer on said core configuration defining surface;
• c. a first insulation layer on said first conductor layer;
• d. a laminated core section disposed on said first insulation layer, said laminated core section having a plurality of thin alternate layers of magnetic material and insulation material, said core section, said first insulation layer and said first conductor layer having cross-sections conforming to said core configuration defining surface;
• e. a second conductor layer having a segment thereof on said laminated core section at the portion corresponding to said second surface;
• and
• f. a solid, magnetic material pole tip formed, at least in part, in said pole tip surface in magnetic relation with the top of said core section and in overlying relation with said first insulation layer, said first conductor layer and said segment of said second conductor layer;
• an insulation gap layer disposed between said first and second magnetic core elements;
• bonding means to maintain said first and second magnetic core elements in said Y-shaped configuration around said insulation gap layer;
• and
• means to electrically connect said first and second conductor layers of said first and second magnetic core elements to form a signal coil.

A magnetic transducer for reproducing and/or recording high frequency signals with a magnetic medium comprising:

• a pair of opposed transducer head halves separated by an insulation gap layer and bonded together, each transducer head half including:
• a generally plate shaped first conductor layer;
• a laminated core section of a predetermined width having a surface thereof intimately affixed to said first conductor layer and being formed of a thin insulation layer on said first conductor layer followed by alternate thin layers of magnetic material and insulation material, the composite of said first conductor layer and said laminated core section having a configuration such that when opposed together with another like laminated core section form a generally Y-shaped cross-section;
• an insulation layer overlaying the surface and the edges of said laminated core section along with a portion of said first conductor layer adjacent the core section edges;
• a second conductor layer on said insulation layer formed as an inverted generally U-shaped member with a bight portion thereof, along with a like bight portion of another transducer half, lying in adjacent relation on opposite sides of said insulation gap layer within a V-shaped opening formed by diverging arms of the Y-shaped cross-section;
• and
• a block-shaped magnetic pole tip in magnetic path relation with the distal end of a respective arm of laminated core portion and in proximate relation with said bight portion and extending over said V-shaped portion in a direction generally perpendicular to the plane of said insulation gap layer.