![]() Your advantage: Impedance control at Multi-CB with up to 5% tolerance! Production from 4WD! The impedance of a PCB is largely determined by the following parameters:Ĭompliance with the impedance values is then checked against a dedicated test coupon for each production panel: All different Z0 values of the layers are measured and logged. The results are possibly necessary modifications of the layer buildup and the necessary adjustments to the relevant conductor geometries. Tolerance requirements of customers are checked for producibility at Multi-CB before production.ĭepending on the PCB layer buildup, the layout and the customer's requested impedances a calculation model is chosen. Especially for quick switching parts with signal rise times of 1 to 2ns, the signal integrity must be guaranteed through good impedance characteristics in the conductor trace connections.įor today's popular multilayers, tolerances of 5% to 10% can be guaranteed by designing layer buildup and layout.
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