What is the Feature Single Sided Panel for PCB?

The single panel is on the most basic PCB, with the parts concentrated on one side and the wires concentrated on the other side. Because the wire only appears on one side, we call this PCB a single-sided. Because single-panel has many strict restrictions on the design line (because there is only one side, the wiring can not cross and must be around the path), so only the early circuit used this type of board;

The single-panel wiring diagram is mainly based on screen printing, that is, a resist is printed on the surface of the copper, and after etching, the mark is printed with a solder resist, and finally the via hole is finished by punching. In addition, some of the products produced in small quantities and diversely use a photoreceptor to form a pattern.