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Wall thickness of a via hole...

C Shiva

 Hi all,

 What is the standard via hole wall thickness for micro, buried and PTH? When putting of vias for a power signal, it is an important issue to maintain the flow of sufficient current. Any feedback will be appreciated.

Regards,

Shiva.

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  • C Shiva

     Thanks Nagaraj. One of our HDI board fabricator, who have the minimum limit of fab of via wall is only 0.6mils for power vias which dimensioned 12x24 for a 1.6mm board. It's too less compared to the current in board. I think the wall thickness is vary with the type of PCB like HDI and normal PTH boards.

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  • C Shiva

     Thanks Nagaraj. One of our HDI board fabricator, who have the minimum limit of fab of via wall is only 0.6mils for power vias which dimensioned 12x24 for a 1.6mm board. It's too less compared to the current in board. I think the wall thickness is vary with the type of PCB like HDI and normal PTH boards.

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