I have defined Plated through holes on my PCB design.But somehow my pcb manufacturer has drilled it as non plated through hole and PCB has arrived.Now I need a suggestion to convert this non plated through hole to plated through hole using wire /solder pin.
Electronic – Non plated through hole to PTH
pcbpcb-assemblypcb-designpcb-fabrication
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Best Answer
First you should contact the PCB vendor and try to get them to remake the boards correctly. If this is not possible you could try making the repairs yourself as follows:
If the hole takes a through hole component just be sure to manually solder each pin at both sides. If the hole is a via from an outer surface to the opposite outer surface then a simple fine wire or pin soldered at both ends should do. (If the via is expected to pass a high current use a thicker wire.) If the board is to be wave soldered or put through an SMT oven be sure to bend the wire or pin at both sides to prevent it from falling out.
If the hole or via needs to connect to an inner layer then you have much bigger problem. If you absolutely must solve this type of problem (on a limited number of holes) you could try using a small flat tipped drill (this might be known as a milling bit), the drill diameter should be smaller then the upper pad. Very carefully drill out the hole just enough to access the foil pad on the next inner layer, then solder the inner pad to the other layers with fine wire. If it is a 4 layer connection then repeat the partial drill out from the opposite side before soldering. Obviously this is very tedious work, you'd only want to try this if you absolutely need to get a working board.
Lastly, manually drilling PCB material can create glass fiber dust which is quite unhealthy, so be sure to use a filter mask if you try this.