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layout of cascode transistor

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perado

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How I can draw the layout of cascoded transistors with same width (120um, 4 finger of 30um) ?
 

perado said:
How I can draw the layout of cascoded transistors with same width (120um, 4 finger of 30um) ?
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See e.g. F. Maloberti's tutorial on Layout of CMOS Integrated Circuit (Part 2), pp. 25 ff (Stacked Layout) :
 

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use common centroid... see attached file (from maloberti).
 

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