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Whats the difference between the bonding pad and the iopad?

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zqihong

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a question on the pad

anyone could tell me the difference between the bonding pad and the iopad?
thanks!
 

Re: a question on the pad

IO pad is most-probably a digital band with digital input/output buffers to drive digital data from/to external world.

Bonding pads are just stacks of metal layers used to connect some external signal to the chip ( for example the Vdd and ground pads )
 

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    zqihong

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Re: a question on the pad

io pad generally used in digital circuits which consists of many driver circuits and some hystersis circuits too.
but bonding pad has only the metal patches.
regards
 

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