PWB/PCATerminology


Surface Mount PWBs
PWBs designed for high density mounting of flat package ICs, LSIs and chip components on a single side or on both sides, for more compact, higher performance electronic systems.
Surface Blind Via Hole PWBs
Blind vias connect the surface layer and inner layers without through holes to reduce the number of PWB layers. Higher density circuit designs can be achieved using a combination of blind via hole and surface mount technologies.
Low Dielectric Material PWBs
PWBs featuring glass-PTFE as low dielectric material offers signal propagation speeds up to 1.5 times faster than standard epoxy-glass based PWBs. These boards are used for LSI test equipment or supercomputer applications.
High Layer Count Multilayer PWBs
High layer count PWBs are used for supercomputer and large-scale mainframe computer systems. Fujitsu's M-780 series mainframe CPU uses this 42-layer PWB.
Thin Multilayer PWBs
Thin multilayer PWBs meet the light weight and small size requirements form many new systems demand. Fujitsu can supply PWBs as thin as 0.4mm (0.016 inch).

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