超碰aⅴ人人做人人爽欧美,国产激情电影综合在线看,在线天堂新版最新版在线8,野花日本HD免费完整版高清版

Detection&Calibration >> Reference Material >> Minority carrier lifetime Reference Wafer
                

 

    Lifetime Reference Wafer is used to correct the parameters which is used to test the value of Lifetime,and than make it can accurate measure the value of lifetime.

 

    Because the lifetime of surface can decay with time growth,so every Lifetime Reference Wafer has its validity,we must re-Verificate them on time, the Cycle is commonly 5 months.

 

 

?2008-2050 HenergySolar. All rights reserved
99久久99这里只有免费费精品| 亚洲欧美精品午睡沙发| 两性色午夜视频免费播放| 消息称老熟妇乱视频一区二区| 老地方在线观看免费视频社区| 精品日韩亚洲AV无码一区破坏|