FR4 PCB Material Price: Layer, Copper and Finish Costs The Default Substrate, and What It Costs FR4 is a composite of woven glass fibre and epoxy resin. It is not the fastest laminate and not the most thermally conductive, but it is dimensionally stable, electrically sound, well understood by every…

HDD PCB Manufacturing: Structure, Faults and Cost The Control Board on the Back of a Drive Every hard disk drive carries a printed circuit board on its underside that does the work people rarely think about: it drives the spindle motor, controls the read and write heads, regulates its own…

Carbon Ink PCB Price Guide: Cost Factors and Global Comparison A Cheaper Conductor for the Right Job Carbon ink replaces copper as the conductive layer on boards where the current is small and the mechanical duty is heavy. Keypads, membrane switches, sensor electrodes and automotive switch contacts are the classic…

Microwave PCB Manufacturing: Materials, Process and Cost Where Ordinary Boards Stop Working Above roughly one gigahertz, the laminate stops being a passive carrier and becomes part of the circuit. Dielectric loss attenuates the signal, dielectric constant variation shifts impedance away from its target, and copper surface roughness adds insertion loss…

Energy Storage Module PCBA Cost: Components, Assembly, Test The Control Board Inside a Battery System An energy storage module is not only cells. Between the cells and the rest of the system sits a printed circuit board assembly that manages charging and discharging, protects the pack from over-current and over-temperature,…

Server PCB Manufacturing: Structure, Materials and Cost What Makes a Server Board Different A server motherboard is expected to run continuously under heavy load for years, moving data between processors, memory and expansion cards at rates that leave no margin for a marginal interconnect. Every design decision, from layer count…

PCB Surface Finishes Compared: ENEPIG, OSP, ENIG, Tin and Silver Why the Finish Matters More Than It Looks Bare copper oxidises quickly. Left unprotected, a pad that measured perfectly on the artwork becomes difficult to solder within days, and the resulting joints are weak, resistive and inconsistent. A surface finish…

High-Speed PCB Manufacturing: China vs US Comparison Why This Comparison Keeps Coming Up High speed boards are the ones that carry the bandwidth: 5G radio units, AI compute nodes, network routers and high speed storage. The manufacturing requirements are stricter than for a general purpose board, and the price difference…

Duroid PCB Material Selection and Fabrication Guide Material Choice Sets the Ceiling on RF Performance Below a few hundred megahertz, laminate choice is mostly a mechanical and cost decision. Above roughly one gigahertz it becomes an electrical one. Dielectric loss converts signal energy into heat, dielectric constant variation shifts impedance,…

Converter PCB Cost: Prototype to Volume Breakdown Why Converter Boards Cost More Than Control Boards A converter board moves energy between voltage levels or between alternating and direct current. Compared with a plain control board of the same layer count it means heavier copper, a denser thermal layout and more…