The PCB prototype can be considered as a test model of a new design intended to mass produce. There is no company that comes out and launches the mass production of a new device without creating a prototype.
Before the PCB is actually built, it is designed, researched and developed into a prototype. There are researchers who conduct prototype tests to get the idea of the type of PCB, and then, based on these findings, PCB designers design prototype drawings. These drawings help engineers customize parts in existing PCBs to be implemented in a new model. Then they continue to produce a prototype. The PCB prototype will show all new implementations. Most manufacturers usually begin building several prototypes before actually launching a plant to build a new PCB.
The PCB prototype can also be labeled as a test PCB. These prototypes have been developed to demonstrate to customers the new qualities of their products. By subjecting these prototypes to numerous tests, the designer can see the advantages, weaknesses, errors and limitations in the new project. Then, by collecting this information, the designer continues to design the prototype while PCB reaches the design goals.
Sometimes PCBs participating in the race are also called prototypes. The reason is that these PCBs are not mass-produced. These prototypes are specialized machines that should introduce new innovations and designs carried by a PCB prototype manufacturer. These prototypes are models for future mass-produced PCBs that the manufacturer will create based on prototype test results.