In the world of PCB design and manufacturing, the third party contract manufacturer serves an important role. Electronics manufacturers usually have the engineering expertise to design the printed circuit boards, the technical skills to assemble their final products, and the sales and marketing team to sell them. What they don’t have though is the skill, experience, and facilities to manufacture the circuit boards. By using a PCB CM for this task, they can avoid the overhead of PCB manufacturing, allowing them to focus on their core competencies such as engineering and marketing of their products.