Basic Microelectronics Symbols - Vt

  

[ Vdsat 定义 ] Vdsat comes from output characteristic curve

I ds =0 V gs t cutoff

I ds =I dsat (V ds /V dsat ) V ds dsat linear

I ds =I dsat V ds >V dsat saturation

V dsat =P v (V gs -V t ) α /2 *P v is empirical value from I-V curve

《 CMOS 大规模集成电路设计》 p58

Vdsat is obtained from output characteristic curve, Vds-Ids, simply Vdsat=Vgs-Vt.

Idsat= β /2 (Vgs-Vt)²

《超大规模集成电路与系统导论》 p151
 
FIB  2.5 nc/um2 for w wire and pads; last sio2 dose=0.2 nc/um2; 0.1x0.1 small hole dose=?