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180nm tachnology aspect ratio and lamda behaviour

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lasha

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hi m working out with my cadence tool.... while m analysing, i would like to know the behaviour of lamda with aspect ratio in 180nm technology both for pmos and nmos.....
could someone help me???????
 

David M. Binkley "Tradeoffs and Optimization in Analog CMOS Design" on pp. 153..163 gives a comprehensive overview on 0.18µm CMOS process Early Voltage (VA) dependency on transistor length (L), Inversion Coefficient (IC), and Drain-Source-Voltage (VDS).

A rather coarse approximation for this process is VA = 10V per (µm channel length) ;
the Channel Length Modulation (CLM) factor lambda = λ = 1/VA .
 
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