Pickup stylus having fused diamond and ceramic bodies with condu

Details Pickup stylus having fused diamond and ceramic bodies with condu Pickup stylus having fused diamond and ceramic bodies with condu

1981-12-04

1985-09-17

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

369173, G11B 906, G11B 1100

Patent

active

045424934

ABSTRACT:
An oxidation resistant soldering compound is deposited in a bore formed on an end of a ceramic shank. A diamond grain is placed in the bore of the shank and heated at an elevated temperature in a vacuum to solder the diamond with the ceramic shank. The soldered diamond and ceramic body are lapped into the shape of a stylus. The stylus is subsequently placed in an environment containing a small amount of oxygen and heated at a temperature lower than the solidus temperature of the soldering compound to convert the surface area of the diamond into a conductive layer of carbon which is lapped into an elongated form to serve as a stylus electrode.

REFERENCES:
patent: 2992007 (1961-07-01), Bondley
patent: 3813101 (1974-05-01), Benz
patent: 4052738 (1977-10-01), Hosomi et al.
patent: 4105213 (1978-08-01), Owaki et al.
patent: 4340954 (1982-07-01), Chio et al.
patent: 4357699 (1982-11-01), Takehara et al.
patent: 4420675 (1983-12-01), Takehara

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