Ordering a custom IoT PCB sounds simple until you're staring at a quote request form full of fields you've never had to fill out before. Layer count, copper weight, surface finish, impedance tolerance — miss one, and you either get a board that doesn't work or a manufacturer who has to stop production and call you for clarification, burning days off your timeline. Whether you're building a smart home sensor, a wearable, or an industrial IoT node, the specs you hand your PCB m

High-Density Interconnect (HDI) PCBs have become the backbone of modern electronics — powering everything from smartphones and wearables to 5G base stations, medical devices, and automotive control systems. Their finer lines, smaller vias, and higher wiring density allow engineers to pack more functionality into less space. But this complexity also means that not every PCB manufacturer is equipped to produce HDI boards reliably. Choosing the wrong supplier can lead to delayed