Is it possible to order boards with no coatings?
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Matthew.Paulson 2 months ago
I want to build up high current traces with solder.  If this is possible, how it is requested with the order? Thanks, Matt
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andyfierman 2 months ago
You can select your traces and click on the Expose Copper button. If you select HASL or HASL lead-free  PCB finish then all exposed copper will be tinned with solder. The thickness of solder with the HASL finish is however only a fraction of a millimetre. To build up the solder thickness for higher current handling you will have to add solder by hand. Better options may be to: 1. ask for 2 ounce copper on the outer layers and; 2. to use the widest possible traces;  3. add Copper Areas to tracks (i.e. surrounding tracks with copper plane area) and; 4. use both sides of the board and even inner layers of a multilayer pcb.
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Matthew.Paulson 2 months ago
Perfect.  Thanks!
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