Annular resistor coupled with printed circuit board through-hole

Details Annular resistor coupled with printed circuit board through-hole Annular resistor coupled with printed circuit board through-hole

1993-04-07

1994-09-13

Lateef, Marvin M.

Electrical resistors

Particular configuration and/or dimension

338306, 338312, 338311, 361761, H01C 700

Patent

active

053472586

ABSTRACT:
A resistor and method of forming the resistor as an annular resistor body between a conductive pad surrounding a through-hole in the PCB and a surrounding conductive layer, the annular resistor body being formed from a conductive material having a selected resistivity, the outer and inner perimeters of the annular resistor body preferably being substantially constant radii whereby the operative resistance of the annular resistor body may be simply determined from the radii of its outer and inner perimeters, an effective thickness of the annular resistor body and its resistivity, the annular resistor body more preferably being formed from a liquid precursor facilitating formation of conductive interconnections at its outer and inner perimeters.

REFERENCES:
patent: 2443018 (1948-06-01), Arvin et al.
patent: 2994846 (1961-08-01), Quinn
patent: 4045636 (1977-08-01), Yoder et al.
patent: 4130857 (1978-12-01), Brower
patent: 4724040 (1988-02-01), Iwasa
patent: 4735676 (1988-04-01), Iwasa
patent: 4777718 (1988-10-01), Henderson et al.
patent: 4808967 (1989-02-01), Rice et al.
patent: 4888574 (1989-12-01), Rice et al.
patent: 4892776 (1990-01-01), Rice
patent: 4911796 (1990-03-01), Reed
patent: 4964948 (1990-10-01), Reed
patent: 5039570 (1991-08-01), Sturm
patent: 5100695 (1992-03-01), Kawakami et al.

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