新型半导体导电类型判别仪设计与研制

Design and Development of Distinction Meter for New Semiconductor Electric Conduction Type

在详细分析金属和半导体接触的整流理论基础上,通过增加补偿二极管、保护电路和数码显示电路改进了传统的三探针整流法,设计了一款用于对半导体材料导电类型判别的测试仪,实际运行结果表明:该测试仪具有准确度高、电路结构简单、操作简便、成本低等特点,可满足实际生产和教学的需要。

On the basis of rectification theory that analyses the contacts of metal and the semiconductor in detail, through increasing compensated the diode, the protection circuit and the numerical code display circuit, the traditional methods of the three probes rectification is improved, a section of tester to use in electric conduction type distinction for semiconductor is designed. Examination result show, this distinction meter has the feature such as the accuracy is high, the electric circuit structure is simple, the operation is simple, the cost is low , may satisfy need in the actual production and the teaching.