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Germanium Diodes from Spherical Pellets

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1 Author(s)
Dunlap, W. C. ; General Electric Research Laboratory, Schenectady, New York

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1721660 

A method is described for constructing germanium high‐voltage diodes, utilizing 15‐mil germanium spheres instead of the usual flat wafer. The spheres are produced within a few minutes in quantities of several hundred thousand or more by blowing molten high‐purity germanium from a graphite crucible. The spherical pellets can be annealed, ground, etched, and assembled into diodes by techniques easily adaptable to automatic mass production. The assembled diode uses a sphere‐plane contact rather than the conventional whisker contact. Peak back‐voltages in the range 50–100 volts are easily obtainable. Series‐assembled units for higher voltages are easily made.

Published in:

Journal of Applied Physics  (Volume:25 ,  Issue: 4 )