sureshnaidu
Member level 2
the extracted transistor parameters are not same as in the schematic view.i have divided the transistor into four fingers.when i check its dc parameters the Cgs value of one finger is differing from the other finger.The first finger Cgs and the Third finger Cgs values are same and second finger and fourth finger Cgs are same.Interestingly Cgs and Cgd of first finger are equal to Cgd and Cgs of second finger respectively.i have many transistors in my design and this problem occurring for all the transistors. my post layout simulations are worst compared to prelayout simulation results.Iam thinking that the problem is due to above mentioned reason.what is the reason for this.can any one explain.thanks is advance