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Generated by Foxit PDF Creator Foxit Software ttp//www.foxitsoftware.comForevaluationonly MOSFET的输入、输出特性曲线 线性区 饱和区 VGs 5V 5 3 VGs /au /au
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Generated by Foxit PDF Creator Foxit Soft ttp//www.foxitsoftware.comForevaluation Mos晶体管阈值电压分析 阈值电压的定义: 使源端半导体表面达到强反型的栅压,是 区分MOS器件导通和截止的分界点
MOS晶体管阈值电压分析 阈值电压的定义： 使源端半导体表面达到强反型的栅压，是 区分MOS器件导通和截止的分界点。 Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only
nerated by Foxit PDF Creator@ Foxit Softy /. foxitsoftware com For evaluation witch Model of NMOS Transistor Gate ource Drain (of carriers (of carriers Open(off)(Gate=0) Closed(on)(Gate=“1)
9 Switch Model of NMOS Transistor Gate Source (of carriers) Drain (of carriers) | VGS | | VGS | < | VT | | VGS | > | VT | Open (off) (Gate = ‘0’) Closed (on) (Gate = ‘1’) Ron Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only
Generated by Foxit PDF Creator Foxit Software 半导体表面达到强反型的 阈值电/栅压-N G n nt n channel depletion p substrate region B 10
10 阈值电压 S D p substrate B G VGS + - n+n+ depletion region n channel 半导体表面达到强反型的 栅压-- VT Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only