Plated-Through Slots

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What is Plated-through Slots?

The definition of plated slot

For a board, it may contain plated slot or unplated slot. Plated slot means this slot is plated with copper which can be used for electrical connection.

Size of plated slot

The min side of plated slot is 0.5mm for AlteraFlex. For unplated slot, the min size is 0.8mm width. If the through-plating is realized within the circuit board it is called plated-through slits, through-plating on the outer edge of the board is called side plating.

Basically, each milling with copper connections on TOP and BOTTOM will be produced as plated-through hole (PTH). Is a non-plated-through (NPTH) milling desired, the milling should be exempted from the copper. 

Plated slot process

It is similar with plated holes . Milling the slots-copper sink-- surface finish (tin-plated for hasl , gold-plated for immersion gold).

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