Annular resistor coupled with printed circuit board through-hole
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United States of America Patent
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Sep 13, 1994
Grant Date -
N/A
app pub date -
Apr 7, 1993
filing date -
Apr 7, 1993
priority date (Note) -
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status (Latency Note)
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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.
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