Evaporator crucible for vacuum depositing systems

Details Evaporator crucible for vacuum depositing systems Evaporator crucible for vacuum depositing systems

1985-05-02

1986-09-23

Camby, John J.

Heating

Accessory means for holding, shielding or supporting work...

Crucible

118726, 373 10, 373163, 373164, 432265, F27B 1410, C23C 1600, H01J 37305, H05B 616

Patent

active

046133062

ABSTRACT:
Evaporator crucible for vacuum depositing systems, having a crucible bottom with at least one bottom opening for the introduction of material in rod form for evaporation. At a distance from the bottom opening there is provided at least one metal crucible rim which preferably is provided with a coolant passage. To solve the problem of reducing the heat losses, the crucible rim is provided internally on at least a part of its depth with a lagging comprising ceramic material. This lagging preferably comprises individual ceramic building blocks which are preferably compressed from magnesium oxide.

REFERENCES:
patent: 4153005 (1979-05-01), Norton et al.
patent: 4159891 (1979-07-01), Schmidt et al.

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