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  3. well tap and End cap cells

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well tap and End cap cells

gops
gops over 16 years ago
What are well tap , end cap and spare cells? What is their purpose. ( I have read that well tap cells are used to limit resistance between power or ground connections to wells of the substrate, What is the advantage in reducing this resistance). Are Well tap and End cap cells technology dependent OR are they a must in every design. How could I fix the maximum number of well tap cells in a design?
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