Material Method Tape Test Initial TCR Before After Resistance [Ω] K−1 Au Evaporation + − 5.0 0.00161 Au Sputtering + + 8.2 0.00192 Pt Evaporation + + 400 ∗ −0.00440 ∗ Pt Sputtering + +/− 6.8 0.00207