RULE NO.,DESCRIPTION,LAYOUT RULE
ANT.16,"If any of the above antenna ratio rules fails then the antenna diodes

shall be connected in a reverse bias mode between the metal line 

failing antenna ratio (connected to gate poly or MIM cap top plate)

and the substrate underneath.


For DRC check if Metaln or Vian fails antenna ratio then it shall

check whether this Metaln or Vian is directly connected to COMP

through lower level metals, vias and contacts or not?

Case (a): Connection to COMP is not present: Flag error

Case (b): Connection to COMP is present: Then:


(i) For Thin gate case: (COMP AND Poly2 NOT DUALGATE):

Treat Gate area = (thin gate area +

MF* (COMP area directly connection that node))


This comp area contained the protection diode and any other

drain or source junction connected to this node.

MF: stand for multiplying factor, for this case MF=2

(ii) For Thick gate case (COMP AND Poly2 AND

DUALGATE) Treat Gate area = (Thick gate area +

MF* (COMP area directly connection that node))


This comp area contained the protection diode and any other

drain or source junction connected to this node.


MF: stand for multiplying factor, for this case MF=15


(iii) For MIM Cap case:

Treat MIM area = (FuseTop area + MF* (COMP area directly

connection that node))(For MIM option-A process)


Treat MIM area = (FuseTop area + MF* (COMP area directly

connection that node))(For MIM option-B process)

This comp area contained the protection diode and any other

drain or source junction connected to this node.

MF: stand for multiplying factor, for this case MF=15

And check back the validity of antenna ratios as specified in

rules ANT.1 to ANT.15.",