Method of manufacturing a device comprising a semiconductor body

Details Method of manufacturing a device comprising a semiconductor body Method of manufacturing a device comprising a semiconductor body

1975-01-09

1976-07-13

Tupman, W.

Metal working

Method of mechanical manufacture

Electrical device making

29580, 29591, 2041293, 20412935, G11B 542, H01F 706

Patent

active

039685659

ABSTRACT:
The invention relates to a method of manufacturing a device, for example, a magnetic head for recording and playing back information on a magnetisable medium.
In this method, a substrate of semiconductor material is profiled by a selective electrolytic etching process.
Preceding the etching process, the part of the substrate to be removed by said process is formed by a local doping treatment, for example, by diffusion.
The doping treatment may be carried out in several overlapping steps.

REFERENCES:
patent: 3661741 (1972-05-01), Meek
patent: 3713922 (1973-01-01), Lepselter
patent: 3881244 (1975-05-01), Kendall

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