Diamond-like carbon encapsulation of magnetic heads

Details Diamond-like carbon encapsulation of magnetic heads Diamond-like carbon encapsulation of magnetic heads

1996-01-17

1997-06-17

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360122, G11B 5127

Patent

active

056402929

ABSTRACT:
A thin film magnetic transducer supported on a substrate includes a coil that terminates at pads supported on the substrate. A layer of diamond-like carbon material encapsulates the head, substrate and coil, but not the pads. A thin layer of diamond-like carbon is deposited over the exposed portions of the transducer, coil and substrate. Three techniques are described for exposing the pads including employing a photoresist mask, depositing an adhesive layer of silicon over the conductive paths but not the pads, and using a photoresist mask to etch the diamond-like carbon layer over the pads and breaking down the silicon adhesive layer with a design voltage.

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