Cracker Effusion Cell CRC

Aresenic, sulfur, antimony and selenium are typically evaporated as molecules when using a standard low temperature effusion cell. To improve the quality of the epilayers it might be suitable to crack these molecules. A special heating system is attached to the top of the LTC for temperatures much higher than the evaporation temperature. Special insulation parts are used to minimize crosstalk between the two heating systems.

Technical Data:

Type	CRC
Heating system	Radiation heating, tantalum wires with PBN insulators
Temperature range	100°C … 800°C bulk zone, 100°C … 1000°C cracker
Temperature stability	≤0.1°C depending on the PID controller
Max. outgas temp.	1200°C effusion cell without crucible, 800°C … 1200°C depending on the crucible, 1200°C cracker
Max. power	220W bulk zone, 180W cracker
Max. current	8A bulk zone, 9A cracker
Bakeout temperature	250°C
Conditioning	Heated to maximum temperature with and without crucible
Shipping	Stainless steel container with valve

Standards:

Flange size	CF40 / CF63 or specified
Max outer diameter	38mm
Length	As specified
Thermocouple type	Two independent type C or specified
Crucible material	PBN / PGR / W / Ta / quartz
Crucible capacity	5 - 40 cc

Options:

Crucible with insert
Downward looking version
Integrated shutter
Water cooling

Available Downloads:

Effusion-cell-CRC.pdf (77.33 KB)

For further information, please contact
sales(at)createc.de.