Portable Measurement System for the Rapid, Non-Destructive, and Unambiguous Identification of +c and -c Surfaces in Polar Crystals.
Fast and unambiguous polarity indication
Non-destructive measurement
Intuitive one-handed operation and easy to interpret optical result
Materials
SiC GaN LiNbO₃ LiTaO₃ PZT ceramics AIN ZnO TGS
Features & Benefits
Fast
30 s
Response time
Hand-held
Measurement
Color-coded
LED’s
Easy to interpret result
+c/-c
Surface polarity
Technical specifications
| Measured parameter | Surface polarity (+c/-c) |
|---|---|
| Measurement principle | Pyroelectric effect |
| Result | Color-coded LED’s |
| Response time | Approx. 30 s |
| Operating mode | Handheld measurement |
| Power supply | 4 x AA batteries |
| Automatic shut-off | After approx. 5 min standby |
| Control Unit Dimensions | 140 × 140 × 40 mm |
| Sensor Head Dimensions | Ø 14 mm × 135 mm |
| Cable Length | 90 cm |
| Weight (incl. batteries) | 650 g |
| Minimum Sample Size | Approx. 5 × 5 mm² |
| Maximum Sample Size | Wafers up to 300 mm diameter |
| Sample Thickness | Variable |
| Sample Geometry | Crystals and wafers |
| Tested Materials | SiC, GaN, LiNbO3, LiTaO3, PZT ceramics, AlN, ZnO, TGS |
| Measurement Type | Non-destructive, without fixed/metallized contacts, even contactless possible |