How to design IO PAD for 180nm??
- Thread starter krishh9
- Start date
dick_freebird
New member
In my experience this varies from foundry to foundry,
and even flow to flow. I get pad construction rules
as part of the PDK from the foundry I currently am at.
Your pad size and pitch are set based on the assembly
and wafer probe you intend to use, along with what the
foundry thinks makes its pad-stack robust. You need to
comprehend and meet both sets of constraints.
Even with prior guidance you may expect that the foundry
will want to review your handmade pad construction (if
you elect not to use the prequalified "esd" library and its
input, output, power, ground pads (as many RF folks must,
to get performance in the signal path). Take advantage
of that early as possible, outside the tapeout path.
and even flow to flow. I get pad construction rules
as part of the PDK from the foundry I currently am at.
Your pad size and pitch are set based on the assembly
and wafer probe you intend to use, along with what the
foundry thinks makes its pad-stack robust. You need to
comprehend and meet both sets of constraints.
Even with prior guidance you may expect that the foundry
will want to review your handmade pad construction (if
you elect not to use the prequalified "esd" library and its
input, output, power, ground pads (as many RF folks must,
to get performance in the signal path). Take advantage
of that early as possible, outside the tapeout path.
Daniel Payne
Moderator
There are companies that specialize in designing IO pads, like Aragio Solutions, more info here on what they design for GLOBALFOUNDRIES.
I need to design Padring from scratch.
I don't have much knowledge of PAD design,
I am using cadence gpdk 180nm, no any foundry specific models available with me.
It would be better for me if anyone share a detail building blocks of IO - PAD design tutorial.
What are the design consideration of each block?
Please provide me tha name of book for the same.
I don't have much knowledge of PAD design,
I am using cadence gpdk 180nm, no any foundry specific models available with me.
It would be better for me if anyone share a detail building blocks of IO - PAD design tutorial.
What are the design consideration of each block?
Please provide me tha name of book for the same.