Draw the SMT printed circuit board outline process diagram, mark the length, width, thickness, structure, location and size of assembly holes, and leave margin size, so that circuit designers can design wiring within an effective range. The choice of assembly form depends on the type of components i

1. Small size of electronic products. The size of patch components is only about 1/10 of that of traditional plug-in components. Generally, after SMT patch processing, the size of electronic products is reduced by 40%~60%.2. Effective and low cost. SMT patch processing is easy to automate, improve p