Most PCB customers do not really know that the PCB prototype plays a key role in designing and producing printed circuit boards. PCB design is often determined by an unclear set of requirements. It was designed to define the functionality required for mechanical and electrical products. The prototype is a polygon for these needs.
The designer includes all the functionalities that can fit into the board. Sometimes the requirements are extensive and the board can be large and very complex. Many things are needed for design to come to the prototype stage. Functionality and reliability are in the first place. The number of layers depends on the complexity of the request. Some panels are only two layers, but in detailed applications they can reach over 30 layers.
Size is also crucial. The board must match the system for which it is designed. Tolerances used in most PCB designs are on thousands of inches, making each layer and every copper track critical. They are constructed under exceptionally narrow tolerances, and this integrity must be checked for accuracy. Signals must be clean and the voltage must correspond to the application. Components added to the surface must also meet tight tolerances. The first panel created is called a prototype. This can range from one to a hundred depending on the level of testing.
The PCB prototype manufacturer performs extreme control because everything has to be checked during the production process. All traces and lines are re-measured to ensure thickness before plate pressure. Holes and vias are drilled using very sophisticated equipment and must be pre-programmed for each panel. When components are added to the surface, electrical signals are again checked and tolerances checked.
After making the board according to specifications, the prototype is then tested and re-examined. Each committee request must be examined in terms of efficiency and reliability. The board is tested independently to ensure functionality before it is integrated into the environment for which it is designed. Each step is recorded and documented. Any failures must be completely solved, and in some cases, a new prototype will have to be built.