Protel do PCB circuit board, how to make the back of the double panel also has components
Double-sided red plastic, had two wave soldering, and the rest there is a face plugs were manual welding, in which there is a process in the middle, and before the plug before the need to post the original need to weld the original hole with high temperature yellow
Double-sided are over reflow, the need for high and low temperature, high temperature surface to avoid electrolytic capacitors, smt high temperature surface solder paste, and then smt low temperature surface solder paste, low temperature surface can send those relatively heavy electrolytic capacitors and inductors such as the original Under the machine all the manual welding, processing costs are relatively high.
Sided patch, SANYOSEIKO high temperature observation equipment SANYOSEIKO visual welding system SMT Scope sk.
double-sided patch, single-sided plug-in can be a side of the solder paste, solder paste surface through the reflow, while the paste surface paste, the other side of the red patch, red plastic face plug foot,
Double-panel back to the device is mainly physical area, there is the layout needs, some device location requirements, must be on what side, and the front can not put the time
