I/O cell and connection zone distance

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hrkhari

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Hi Guys:

I can't ssem to find the requirement of the preferable distance between the I/O cell and the connection zone of a bonding pad from the Physical Design Rule documentation. As a rule of thumb what would be a preferable distance between the I/O cell and the connection zone of the bonding Pad?. Thank You

Rgds
 

Depends on your packaging house..
A safe rule of thumb is 1/3 bond pad opening.
ie: if pad = 90 , then space should be around 30..
20 if you want to push it.. This is a generic rule.
I've got 24 years doing layout.. this is my conclusion. ;')
 

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