From Idea to Product — Part 5 Even though it seems that our new product design advances rather slowly, it's unlikely to move quicker in the real world. Setting up a business takes time. The previous installment left us with a Bill of Materials (BoM) and a netlist, and so we can now start working on a printed circuit board (PCB) for the project. Or several, as needed. Please note that PCB designing is highly complex and cannot be treated in any depth in this short article.