PCB printed circuit board, the "printed" is not referring to thermal transfer? Mass production PCB is also produced by thermal transfer method?
Batch should be photographic production with film printing. The Then UV exposure. Heat transfer is convenient. But the accuracy of a search like it
and then use the syrup will not need the place of copper etching out, so that the formation of a side of the line. Usually a PCB is formed by laminating multiple layers of such core plates, and the electrical connections between the different layers are achieved through vias on the board
Now the industry batch processing of PCB are used to process the etching method: the substrate itself is composed of resin and adhesive in the resin on the copper layer, commonly known as the core, and then through the film, the way the formation of the core plate Curing the protective film, will need to form part of the line protection,
Not the heat transfer, where the printing is an image of the argument, because the PCB line looks like the same as printed on the substrate.
