Patent ID: 8168258
Filing Date: 2012-05-01
Classification: G01K

Abstract:
1. A method of producing a temperature sensor comprising at least one lead wire made of nickel or a nickel alloy, the method comprising: attaching the lead wire to the temperature sensor; removing an oxide layer from at least one portion of the lead wire such that the nickel or the nickel alloy is exposed at the at least one portion of the lead wire; and chemically gilding the at least one portion of the lead wire after removing the oxide layer; wherein the step of chemically gilding comprises immersing the at least one portion of the lead wire in a plurality of baths; and the at least one portion of the lead wire is immersed successively in a degreasing bath, in a first rinsing bath, in an activator bath, in a second rinsing bath, in a currentless gold-plating bath until a gold layer of about 0.1 μm is formed thereon, and in a third rinsing bath.