Circuit board EMI suppressor including a lossy dielectric layer

Details Circuit board EMI suppressor including a lossy dielectric layer Circuit board EMI suppressor including a lossy dielectric layer

1992-03-13

1995-06-27

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

174 35R, 174 35MS, 174255, 333246, 333247, 361751, 361763, 361792, 361795, 361816, 361818, H05K 111, H05K 900

Patent

active

054285062

ABSTRACT:
An improved printed circuit card or second level electronics package (circuit board) including a laminate of lossy material and dielectric material between the voltage supply plane (Vcc) and the ground (GND) plane. The laminate suppresses common mode noise that is generated by active components on the card or circuit board.

REFERENCES:
patent: 3189847 (1965-06-01), Rymaszewski et al.
patent: 3904886 (1975-09-01), Ehling et al.
patent: 4408255 (1983-10-01), Adkins
patent: 4812792 (1989-03-01), Leibowitz
patent: 4954929 (1990-09-01), Baran
patent: 4965408 (1990-10-01), Chapman et al.

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