how to find gamma and phi parameter of mos transistors

[pekachoo007]

γ and φ parameter for calculation of vth due to body effect?

 

[erikl]

See the

For lower level numbers (and less complex γ and φ calculations) you could check this document:
View attachment ORCAD-PSpice_Reference_Manual.pdf (e.g. pp 176 & 181).

 

[pekachoo007]

actually want to solve the equation:
Vth = Vth0 + γ(√2φ+Vbs-√2φ)

how to find the values of γ and 2φ

 

[erikl]

how to find the values of γ and 2φ

If they aren't given intrinsically in the model files, they are results from further (often complex) calculations with other parameters. Check the literature given above.