-SCS Parameter Analyzer Reference Manual Section 4: Multi-frequency capacitance-
4200A-901-01 Rev. C / February 2017 4-53
Formula: VFB
Formula name: VFB (V
FB
)
Units: V
Description: Flatband voltage. Once CFB (CFB) is derived, V
FB
is interpolated from the closest V
GS
values.
Formulator entry:
VFB = AT(DCV_GB,FINDD(CADJ, CFB, 2))
Formula: VFBPOS
Formula name: VFBPOS
Units: None
Description: Finds row position of flatband voltage.
Formulator entry:
VFBPOS = FINDD(DCV_GB, VFB, 2)
Formula: VTH
Formula name: VTH (V
TH
)
Units: V
Description: Threshold voltage
Formulator entry:
VTH = VFB+DOPETYPE*(AREA/COX*SQRT(4*ES*Q*ABS(N90W*PHIB)) + 2*ABS(PHIB))
Simplified equation:
Formula: WMS
Formula name: WMS (W
MS
)
Units: V
Description: Work function difference between metal and semiconductor (W
M
and W
S
are defined in
the constants area of the Formulator).
Formulator entry:
WMS = WM-(WS+(EBG/2)-PHIB)
Simplified equation:
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