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Effusion Cells
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Product description:
This effusion cell is specially
designed for the evaporation of gallium, indium, copper etc. Special
measures are taken to prevent material condensation at the crucible
orifice. An additional heating system with a separate thermocouple is
installed at the top end of the crucible. Using two control circuits,
this allows the adjustment of the orifice temperature (HOT-LIP
temperature) independent of the bulk material temperature.
Applications:
| Material |
Symbol |
Crucible |
Melting Point (°C) |
Temperature (°C) for Vapor Pressure (Torr) |
| |
|
|
|
|
| Erbium |
Er |
PBN, Ta, W
|
1529
|
649
|
777
|
897
|
| Gallium |
Ga |
PBN, Al2O3, BeO, Quartz |
30
|
619 |
742 |
907 |
| Germanium |
Ge
|
PBN, Al2O3, Quartz |
938 |
812 |
947 |
1137 |
| Indium |
In
|
Al2O3, PBN
|
157 |
488
|
597
|
742
|
| Scandium |
Sc
|
Al2O3, BeO |
1541 |
772
|
917
|
1107
|
| Tin |
Sn
|
PBN |
232
|
682
|
807
|
997
|
Technical data:
Standard:
|
|
Type
|
DFC
|
Heating system
|
Radiation heating, tantalum wires with PBN insulators
|
Temperature range
|
200°C - 1400°C bulk zone
200°C - 1400°C hot-lip
|
Temperature stability
|
> 0.2K depending on the PID controller |
Max. outgas. temp
|
1600°C bulk zone
1600°C hot-lip
|
Max. power
|
360 W bulk zone
120 W hot-lip
|
Max. current
|
12 A bulk zone
A hot-lip
|
Bakeout temperature
|
250°C
|
Conditioning
|
Heated to maximum temperature with
and without crucible
|
Shipping
|
Nitrogen flooded stainless steel container with valve
|
Custom:
|
|
Flange size
|
CF 40 / CF 63
|
Max outer diameter
|
38 mm |
Length
|
As specified
|
Thermocouple type
|
Two independent TC's type C / WRe 5% - 26%
|
Crucible material
|
PBN /PGR / W / Ta
|
Crucible capacity
|
5 - 39 ccm |
Options:
Molybdenum version
Crucibles with different inserts |
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