青青草欧美亚洲日本,日韩人妻中文字幕有码,日韩外围三级在线观看,国产av国,亚洲天堂网中字成人区,久操国产在线资源,欧洲亚洲天堂精品好看,伊人a视频,欧美有码一区二区

                

 
 
Product Brief:
       HS-SFRT silicon filament resistivity tester is an advanced silicon cylinder resistivity tester, which can measure silicon filament, silicon phosphorus ingot, silicon boron ingot, seed crystal and so on. As it eliminates Peltier effect,  Seebeck effect, minority carrier inject effect and so on, So it improve the accuracy greatly. The testing resistivity ranges from 0.0005Ω·cm to 50000Ω·cm. It is accurate, stable and convenient and a good friend to Siemens polysilicon material producer, SH4 polysilicon material producer, UMG polysilicon material producer and so on.


Product's feature: 
■ Application:
-Silicon filament, silicon phosphorus ingot, silicon boron ingot, seed crystal and so on.
-Siemens polysilicon material producer,SH4 polysilicon material producer and so on.
-UMG polysilicon material poroducer.
-PV and IC ingot producer.
-University & Institude, R&D branch and so on.
■ It eliminates Peltier effect,  Seebeck effect, minority carrier inject effect and so on, So it improve the accuracy greatly.
■ High accuracy, besides thickness correction,it alao has temperature correction and diameter correction . 
■ There are two digital meters in the Meter, one is used to display results, the other is used to monitor the variation of the current in whole process.
■ It has very strong search and print functions.
■ When the resistivity test system is connected to the Meter, the corrections for thickness, diameter and probe spacing can be carried out automatically in wafer measurement, and the resistivity, the maximum and average percentage radial variation of resistivity, the radial homogeneity of resistivity will be calculated and printed out automatically.
■ Low-drift four-point probe’s drift is 0.1-0.2%, so the repeatability and accuracy of resistivity measurement can be guaranteed.
■ Adopt Germen and Japanese components and parts, improve reliability and lifetime greatly.
■ Constant current source(0.05%)is very stable without temperature effect. 
■ Both of forward and reverse testing function to guarantee the accuracy of testing result.
■ Resistant to strong magnetic field and high frequency equipment.


Work condition: 
■ Temperature：23±2℃

■ Humidity：65%

■ No strong magnetic field, far away from high frequency equipment. 


Technique Specification: 
■ Resistivity Range：5×10P-5P —5×10P5PΩ·cm

■ Error area:＜3%

■ Power Supply ：AC  220V±10%    50/60Hz    12W


Typical Customer:
Our customer come from Beijing,Zhejiang,Sichuan,Hebei,Henan and so on.