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Site title: PCB Fabrication, Assembly, and Components | Sierra Circuits
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Designing a microvia with an excessive aspect ratio is one of the typical causes of reliability issues in HDI PCBs. It can result in non-uniform plating, increased mechanical stress, and cracks in plated holes.
Fabricators appreciate reviewing the aspect ratio during the design phase, as it allows them to identify manufacturability risks early and recommend changes bef...
Signal integrity issues occur when a signal is distorted as it travels between the driver and receiver. Inconsistent impedance, closely spaced traces, and PDN noise can all degrade the quality.
These effects become more noticeable as rise times decrease. Shorter rise times have higher-frequency content, causing traces to behave like transmission lines.
As freque...