Patent ID: 6985068
Filing Date: 2006-01-10
Classification: G01F,H01C,H05K

Abstract:
1. A resistor card for a fuel level indicator system, comprising: a planar ceramic substrate having a first and second surface; an arc-shaped set of spaced apart conductor lines mounted on the first surface, the conductor lines each having a first end, a second end and a central portion; an arc-shaped resistive area overlying the central portion, the resistive area in electrical contact with the conductor lines; an encapsulant covering the arc-shaped resistive area; an arc-shaped solid conductor base mounted on the first surface and spaced from the conductor lines; a nickel layer covering the conductor lines and the conductor base; an electroplated cobalt and gold alloy layer covering the nickel layer, the cobalt and gold alloy layer having a composition based on total composition comprising 0.1 to 0.3 weight percent cobalt and 99.7 to 99.9 weight percent gold; and a plurality of probe pads attached to the first end of the conductor lines, a plurality of conductive lines not having probe pads located between adjacent conductor lines having attached probe pads.