1、 Structural features

2、 Overview
The ST-3 type conductivity type identification instrument is an instrument that uses the principle of thermoelectric potential method and rectification method to identify the semiconductor conductivity type (PN type).
Complete set of instruments: This instrument consists of a host and two sets of probes and other components. The conductive type P or N is displayed by the digital tube. The probe is used in conjunction with the cold and hot components.
Advantages and characteristics:
In the thermoelectric potential method, the thermal probe has a constant temperature adjustable function to meet the needs of wide range low resistivity conductive type testing! Both the cold and hot probes are plug in for easy replacement.
In the rectification method, an instrument that uses the principle of rectification to identify the type of semiconductor conductivity, while also having the function of testing heavy doping.
The key components of this instrument use dedicated integrated circuits and high-quality SMT technology. The instrument has the characteristics of wide identification range, high sensitivity, good stability, and convenient use. Suitable for semiconductor material factories, semiconductor device factories, research institutions, higher education institutions, etc. to test the conductivity type (PN type) of wide range, especially low resistivity semiconductor materials!

3、 Technical parameters
1. PN identification scope:
Thermoelectric method ρ= one × 10-1.0 × 103 Ω cm, rectification method ρ= one × 10-2-1.0 × 104 Ω cm
2. Measurable semiconductor material size:
PN identification: contactable surface Smin=3mm * 3mm
3. Probe parameters:
Thermoelectric potential method (1) Thermal probe: temperature adjustment range 60 ℃~200 ℃, probe: nickel plated "not old"
⑵ Cold probe: single needle type,
Rectification method, nickel plating on steel needles
4. Power supply:
220V ± 10% 50Hz,
Power consumption:<20W
5. Working environment:
Temperature: -10 ℃~40 ℃ Relative humidity: 50%~70%
There should be no strong electromagnetic field interference in the studio
6. Overall dimensions and weight:
Host: 175mm (length) × 200 mm wide × 70mm (height) Weight: approximately 1kg
4、 For details, please visit the official website of Suzhou Lattice Electronics Co., Ltd http://www.szjgdz.com.cn Or refer to the "Technical User Manual for ST-13 Conductivity Type Identification Instrument"
5、 Contact information: Contact information: 400-635-7098 QQ: 2851706351 Mr. Ding