Technology Parameter Vgs-Vth+Vds
The values of parameters such as min. Vgs-Vth+Vds is defined by circuit designer.
For example, the min. Vgs-Vth+Vds is the minimum margin for a transistor to be in saturation. That depends on many factors.
a. Circuit structure
b. Intuitive decision of an engineer
It is not easy to objectively define it. The tool does provide some default values, which are safe to use. If you are not sure of the values to be used, you can use default values.
Multiple MOS model
If you have multiple model names for NMOS and PMOS, you can write them, separated by space, in the same entry box.
Example:
NMOS transistor models: NCH NCH3
PMOS transistor models: PCH PCH3
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