PCB prototyping is to manufacture a real circuit board from a designed PCB. And the main intention of prototyping is to not only test the concept and functionality of the design, but also perfect and grow it stage by stage, limiting final fabrication failure as much as possible.
When it comes to the benefits of PCB prototyping, here are a couple of aspects for your reference:
1. Testing PCB design in small quantities before mass production;
2. Ensuring manufacturability, quality and functionality;3. Reducing costly reworks, especially for multi-layer or high-density boards;
4. Be fine-tuned and validated PCB design;5. Eliminating possible failures early, etc.