Model DX-7 Semiconductor X-Ray Orientation Units for Seed Crystal
Functions: it is mainly used to orient the silicon mono-crystal seed crystals and, also, orient the seed crystals of the other semiconductor materials.
Characteristics: it is of two work tables, where the right one orients the end to be processed to seed-crystal silicon mono-crystal ingot and, then, to be cut to slivers on the internal cutter; the left one is used to orient the seed-crystal slivers.
Technical Data:
|
item
|
data
|
|
input power supply
|
mono-phase AC 220 V，50 Hz，0.3 kW.
|
|
tube voltage max.
|
30 kV
|
|
tube current
|
0-5 mA continuously
adjustable
|
|
receiver
|
Geiger counter，work voltage max. DC 1 050 V
|
|
x-ray tube
|
copper target, fan
cooling, grounded anode
|
|
measured
angles
|
2θ=－10～120°，θ=－5～60°
|
|
comprehensive precision
|
±30″（measured with standard quartz plane 10ī1）
|
|
reading min.
|
1″
|
|
tested-crystal size
|
Used to measure the
silicon mono-crystal (ingot) of 0.5 –8”,
≤30 KG.
|
|
overall
dimension
|
1290（L）x772（W）x1300（H）mm
|
|
weight
|
300 kg
|