What is ERC?
ERC
(Electrical rule check) involves checking a design for all well and substrate
areas for proper contacts and spacing thereby ensuring correct power and ground
connections. ERC steps can also involve checks for unconnected inputs or
shorted outputs.
There are certain checks like
1) Any Floating N-wells :
2) Any Floating Substrates: Then circuit will remaining uncompleted. So that transistor will not be created .
3) Is N-well tap connected to GND : ( N-well Tap always connected to VDD.)
4) Is P-Substrate tap connected to VDD : (P-substrate tap always connected to VSS.)
There are certain checks like
1) Any Floating N-wells :
2) Any Floating Substrates: Then circuit will remaining uncompleted. So that transistor will not be created .
3) Is N-well tap connected to GND : ( N-well Tap always connected to VDD.)
4) Is P-Substrate tap connected to VDD : (P-substrate tap always connected to VSS.)
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