The production of printed circuit boards today is incredibly diverse and full of endless possibilities. Numerous factors complicate the process and influence the ultimate cost of PCB development. Most of these costs stem from the early stages of the PCB manufacturing process, including the overall design of the printed circuit board. PCB technologies comprise a plethora of intricacies when it comes to design.
The dynamics and unique characteristics of a board undoubtedly impact its assembly price. Let’s take a closer look at the four main factors affecting printed circuit board costs present day. Here’s what to keep in mind.
PCB Material Choice and Selection
Out of the four main factors affecting printed circuit board costs, one’s choice of material tops the expense list.Material selection typically depends upon industry application or intensity usage level of the electronic product.The core considerations impacting this material choice are mechanical properties, heat transfer, signal performance, temperature reliability, and thermal reliability.The right grade and type of material are integral to the performance of a PCB.
PCB Size and Panel Use
After the material selection is the consideration of PCB size. Size choice matters. This factor impacts the duration and complexity of the manufacturing process. Keep in mind that the dimensions of a board are critical to its functionality and efficiency.
How many active components fill the board? Do they use the panel effectively? Designers generally determine this space factor by the circuitry required. For example, PCBs in digital smartwatches won’t be the same size as those in larger industrial machinery.
PCB Levels: Number of Layers
The number of layers a PCB has is also a core cost determining factor. Prices generally increase on a layer-by-layer basis. When extra or supplementary layers are necessary for a PCB design, more production steps are necessary to complete its lamination or finishing process. Essentially, you’re adding more time and material supply to the list, which could also increase the possibility of costly errors. The complexity or more holes or vias is another factor to consider.
PCB Thickness: Trace Width and Space
Other influential cost factors besides hole numbers or via complexity include a board’s thickness. Tougher materials can increase the overall effort of production, especially for intricate designs. Keep in mind that correlation also exists between trace width and carrying capacity. The thickness and width of vias, pads, and other circuit board elements influence current carrying capacity.
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