变温霍尔效应测量仪(80K-350K)

1) 仪器组成：
a) 恒流源及主机Constant current source supply system – Mainbody.
    - Weight : 10kg (Approximately)
    - Size : 43 x 42 x 15cm.
b) 自动换向磁体组Automatically moving Permanent magnet set by motorizing system.
   - Weight : 15kg.
   - Size: 70 x 24 x 11cm
c) 样品固定板Sample mounting board part.
   - Spring clip type sample mounting board
   - Gold coated- phosphor bronze.
   - Heater embedded inside to raise the temperature.
   - Temperature sensor attached on sample board, to detect real time temperature.
d) 圆形液氮槽Round LN2 tank – For the purpose of keeping LN2 temp.
e) 方形液氮槽Square LN2 tank – For the purpose of keeping LN2 and located in the center of both round magnet.
f) 漏斗 Funnel for liquid nitrogen
g) 测量电缆 Measuring cable – 5 q’ty. It is for connection between mainbody system and magnet kit.
h) USB数据通信电缆  USB cable. – to communicate between PC and mainbody system.
i) 电源电缆  Power cord cable.
j) 参考样品  Reference sample 2pcs – 1pc(ITO) plus 1pc(GaN or GaAs ) which is variable as per temperature change.
k) 测试报告  Test results report.
l) 手册  Manual book.
m) 软件CD  Operating s/w program CD.
n) 真空瓶  A vacuum bottle - For use of keeping LN2 and flowing into LN2 tank
o) 欧姆接触材料InSn  In95%Sn5% 5g – 1 bottle.
p) 工具 L wrench(Hexa wrench) - For use of locking in and out magnet movement.

1, 综合技术规格：
   • zei大样品尺寸Maximum sample size : 20mm x 20mm
   • 测量温度范围Measurable Temperature: 80K ~ 350K
   • 温度控制准确度Accuracy of temp: ±0.5dC.
   • 每温度点测试时间One time whole Measurement speed : 15second.
   • 降温到80K所需时间Cool-down time to 80K : Within 10min.
   • 测量材料Measurement Material: All semiconductors including Si, SiGe, SiC, GaAs, InGaAs, InP, GaN (N Type & P Type can be measured).
Data input of depth enables comprehensive measurement of the whole material.
   • 电阻率范围Resistivity Range : 10^-4 to 10⁷ (Ohms-cm)
   • 迁移率Mobility: (cm2/Volt-sec) 2 ~ 10⁷ (including low temperature)
   • 载流子浓度Density (cm-3): 10⁷ ~ 10²¹
   • 磁体Magnet: Permanent magnet (diameter: 50 mm)
   • 磁通量密度Magnet Flux Density: 0.55 Tesla ±0.02T.
   • 磁体稳定性Stability: 0.2% over 1 years
   • 磁通量均匀性Uniformity: +/- 1% over 20mm diameter from center
   • Standard field strength 0.55 Tesla,
   • 磁体移动方式Movement: Automatically moving N⇒S and S⇒N, by motorizing system.
   • 包装箱Finally packed in overseas wooden crate : Net Weight: 32 Kg, Gross weight: 52kg.
Dimensions: 86 x 67 x 63 cm

2、恒流源规格 Current source:
   • 输入电流范围Applying input current Range: 1nA - 20mA
   • 电压Compliance: 12V

3、电压测量规格 Voltage measurements:
  • 输入阻抗Input impedance: 2x10⁷
  • 输入电压范围Input voltage range: +/-12V
  • 电压准确度Voltage accuracy: ±2uV.
  • 样品固定Sample input: Mounting on Sample board.
  • 接触转换Contact switching: Mechanical Relay

仪器特点 Features：
a) 电阻率测量范围宽，适用于低阻抗及高阻抗半导体薄膜 Low and high resistivity measurement capability,
b) IV曲线、IR曲线测量 IV(Current vs Voltage), IR(Current vs Resistance) curve plotting.
c) 连续变温测量(80K-350K), 无节点 Measuring in variable temperature.
    - 温度-载流子浓度曲线  temp vs bulk concentration,
    - 温度-迁移率曲线  temp vs mobility,
    - 温度-霍尔系数系数  temp vs Hall coefficient,
    - 温度-电阻率曲线 temp vs resistivity,
    - 温度-电导率曲线 temp vs conductivity in semiconductors.
d) 直流测量模式 DC measurement modes
e) 范德堡及霍尔Bar测量  van der Pauw and Hall Bar measurements
f) 板系统 Board system ( 80K to 350K )

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注：该产品未在中华人民共和国食品药品监督管理部门申请医疗器械注册和备案，不可用于临床诊断或治疗等相关用途