RE: [SI-LIST] : PCB impedance variation v.s. layout pattern

Ingraham, Andrew (
Mon, 30 Aug 1999 10:26:03 -0400

Are the trace corners square, chopped at an angle, or rounded?


> ----------
>We are designing a Rambus related product which requires the PCB to
>28 Ohm +/- 10% trace impedance.
>However, what we have found that a straight line trace will get a higher
>impedance (through TDR, 1 Ohm or more) than

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