4: Multi-frequency capacitance-voltage unit Model 4200A-SCS Parameter Analyzer
4-50 4200A-901-01 Rev. C / February 2017
Formula: INVCSQR
Formula name: INVCSQR
Units: 1/F
2
Description: Inverse square of capacitance.
Formulator entry:
INVCSQR = 1/(MAVG(CADJ, 5))^2
Simplified equation:
Formula: MAXINVSQR
Formula name: MAXINVSQR
Units: 1/F
2
Description: Finds row position of maximum point on 1/C2 curve.
Formulator entry:
MAXINVSQR = MAXPOS(INVCSQR)
Formula: N90W
Formula name: N90W
Units: None
Description: Doping density at 90% of maximum depletion depth.
Formulator entry:
N90W = AT(NDOPING, FINDD(DEPTHM, 0.9*MAX(DEPTHM), 2))
Formula: NAVG
Formula name: NAVG (N
AVG
)
Units: None
Description: Average doping calculated between index BEST_HI and BEST_LO.
Formulator entry:
NAVG = AVG(SUBARRAY(NDOPING, COND(BEST_HI, BEST_LO, BEST_HI, BEST_LO),
COND(BEST_HI, BEST_LO, BEST_LO, BEST_HI))))
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