YSTD&reg; New A4 Heat Toner Transfer Paper For DIY PCB Electronic Prototype Mak Top (10pcs) Heat transfer law making circuit boards, circuit board is drawn graphics, laser printers print in thermal transfer paper, transfer paper and then covered in Bonded Copper, after heating, the melting of the toner completely adsorbed on the deposited copper, and other cool tear off transfer paper, you can see the graphics board has to transfer to the Bonded Copper on the black anti-corrosion layers, that is, we want to map the PCB, and finally to corrosion, and that we want to obtain the PCB board. The process of making iron tools used in heating or over-presses. We serve the transfer paper for the production of circuit boards dedicated thermal transfer paper, with its production of circuit board has the following advantages: DIY Transfer Paper (fan-made high-precision electronic circuit board must have the material). Remove the white paper, laser printer (or copier) to the PCB map, hit the smooth side, apply to the copper, and iron into the machine or rapid transfer to plate. Size: A standard paper size, 210  297 mm