Trace-impedance matching at junctions of multi-load signal traces to eliminate termination (US6927992)


	Parent Case:			CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation-in-part of the co-pending application for “DDR Memory Modules With Input Buffers Driving Split Traces with Trace-Impedance Matching at Trace Junctions”, U.S. Ser. No. 10/249,845, filed May 12, 2003.
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	First Claim: Show all 18 claims			1. A trace-impedance-matched board comprising: a substrate containing wiring traces that include an input trace ending at a first junction; a plurality of branch traces on the substrate, the plurality of branch traces branching from the first junction to a plurality of endpoints; wherein a first equivalent impedance is a reciprocal of a sum of reciprocals of branch impedances of branch traces branching from the first junction in the plurality of branch traces; wherein an input impedance of the input trace is adjusted to match the first equivalent impedance wherein a width of the input trace is matched to a sum of widths of branch traces branching from the first junction.
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	Forward References:			Show 1 U.S. patent(s) that reference this one

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