Method for manufacturing nuclear radiation detector with deep di

Details Method for manufacturing nuclear radiation detector with deep di Method for manufacturing nuclear radiation detector with deep di

1975-10-20

1977-11-29

Ozaki, G.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148191, H01L 21228

Patent

active

040604322

ABSTRACT:
Germanium radiation detectors are manufactured by diffusing lithium into high purity p-type germanium. The diffusion is most readily accomplished from a lithium-lead-bismuth alloy at approximately 430.degree. C. and is monitored by a quartz half cell containing a standard composition of this alloy.
Detectors having n-type cores may be constructed by converting high purity p-type germanium to n-type by a lithium diffusion and subsequently diffusing some of the lithium back out through the surface to create a deep p-n junction.
Coaxial germanium detectors comprising deep p-n junctions are produced by the lithium diffusion process.

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patent: 2836523 (1958-05-01), Fuller
patent: 3340598 (1967-09-01), Hatcher
patent: 3374124 (1968-03-01), Tavendale
patent: 3795547 (1974-03-01), Hall
patent: 3826721 (1974-07-01), Hall
Llacer, Nuclear Instruments and Methods, vol. 98, 1972, pp. 259-268.

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