Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1985-10-17
1987-02-17
Kucia, P. R.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
333238, 361397, H05K 103
Patent
active
046440933
ABSTRACT:
A circuit board comprises a substrate made of a semi-insulating or insulating material, an insulating layer formed on the substrate and having a lower dielectric constant than the dielectric constant of the substrate, and a plurality of wiring conductors formed at predetermined intervals on the insulating layer. The insulating layer has a thickness determined according to the distance between adjacent wiring conductors and equal to 0.5 to 2.5 times the distance noted above, for the purpose of reducing cross-talk noise.
REFERENCES:
patent: 3179904 (1965-04-01), Paulsen
patent: 3634782 (1972-01-01), Marshall
patent: 4423282 (1983-12-01), Suzuki et al.
patent: 4441088 (1984-04-01), Anderson
patent: 4475006 (1984-10-01), Olyphants
patent: 4498122 (1985-02-01), Rainal
Iida Atsuko
Miyagi Takeshi
Oe Shigeyuki
Saito Tamio
Sudo Toshio
Kabushiki Kaisha Toshiba
Kucia P. R.
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