Let us consider we have one transitor with Width(w)=5u, Length(l)=2u, Fingers(f)=3, Multiplier(m)=4.
That means you have 4 transistors each with 3 fingers and with w=5u, l=2u for each finger.
If a transistor has 3 fingers then it means that its either S or D are merged and we should connect the rest(S/D) .
The total width of transistor =w * f * m (w-width,f-fingers,m-multipliers)....
Added after 56 seconds:
Let us consider we have one transitor with Width(w)=5u, Length(l)=2u, Fingers(f)=3, Multiplier(m)=4.
That means you have 4 transistors each with 3 fingers and with w=5u, l=2u for each finger.
If a transistor has 3 fingers then it means that its either S or D are merged and we should connect the rest(S/D) .
The total width of transistor =w * f * m (w-width,f-fingers,m-multipliers)....