skas20
New Member
Offline
Posts: 9
|
IBM process design manual will give you what is the minimum width you can use for the resistor. However, It is not good to use minimum because the variations on the model parameter will be +-10% or more. hence you can use may be a 0.5 micron extra than minimum which also brings down the tolerance.
For the maximum side, the process design manuall will give the voltage and current capacity of every device can afford to be operating in normal characteristics.
Appart from oppcres and nwrrpcress, you can also use opndress (diffusion resistor) which has more density compared to poly resistor.
but remember, polyresistor gives you the least tolerance.
Regards, SK.
|