High-Density Interconnect (HDI) technology has revolutionized modern electronics, allowing for smaller form factors and higher functionality in devices ranging from smartphones to aerospace avionics. However, as trace widths shrink and signal frequ...
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High density interconnect (HDI) boards enable the miniaturization and performance requirements of modern electronics, but these benefits come with increased complexity in impedance control. As trace widths decrease, layer counts increase, and featu...
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The transition to 5G millimeter wave frequencies presents PCB designers with challenges that dwarf those encountered at traditional microwave frequencies. While sub-6GHz cellular infrastructure shares many characteristics with established RF design...
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High-density interconnect (HDI) designs enabling 5G communications, high-speed data centers, and advanced automotive radar require printed circuit boards that preserve signal integrity across demanding frequency ranges. Standard FR4 laminates, adeq...
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The computing industry stands at another bandwidth inflection point. PCIe Gen5 doubled per-lane data rates to 32 GT/s compared to Gen4, and PCIe Gen6 pushes further to 64 GT/s. These increases sound incremental on paper, but the engineering challen...
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Signal integrity engineers spend considerable effort on trace geometry, impedance control, and crosstalk management. Yet one factor often receives insufficient attention until problems emerge in production or field operation: copper foil surface ro...
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