Differential transmission circuit, optical module and manufacturing method of differential transmission circuit
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United States of America Patent
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Oct 3, 2017
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N/A
app pub date -
Mar 31, 2015
filing date -
Apr 1, 2014
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Abstract
A differential transmission circuit includes: a dielectric layer for embedding a plurality of first strip conductor pairs arranged side by side in the same layer above a ground conductor layer, each of the plurality of first strip conductor pairs including a first right strip conductor and a first left strip conductor, the dielectric layer being formed from an upper side of the ground conductor layer up to a region above the plurality of first strip conductor pairs, the dielectric layer having a flat upper surface. A region between adjacent two of the plurality of first strip conductor pairs is embedded in the dielectric layer without arranging a conductor in the region.
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