O. Prigge et al., Worst best device and circuit performances for MOSFETs determined from process fluctuations, IEICE TR EL, E82C(6), 1999, pp. 997-1002
Fluctuations of three device parameters (T-ox, N-sub, Delta L) based on pro
cess fluctuations are taken as cause of device/circuit performances. In-lin
e measured device parameters are approximated by Gaussian functions; and th
eir 2 sigma values are assigned as boundaries of the performance fluctuatio
ns. Measured distributions both Fur device and curcuit performances are suc
cessfully reproduced.