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Microvias play a big role in the size and capabilities of HDI boards.
2019-06-14 16:26:22
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Smaller vias can be closer together, leading to a smaller board or freeing up space for additional components. Microvias have smaller aspect ratios than through-hole vias, and provide greater reliability for HDI boards than other vias.

As the semiconductor and electronics market called for smaller, but higher function products, HDI found its place in design engineers' arsenal. Shortening the distance between devices, or trace space, and using a large number of transistors translated to better performance in electronics.

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