Patent ID: 9648749
Date: 2017-05-09
CPC Classifications: H05K

Claim:
1. A circuit card assembly, comprising: a substantially planar substrate having longitudinally spaced first and second substrate end edges, transversely spaced top and bottom substrate surfaces, and laterally spaced first and second substrate side edges, at least a selected one of the top and bottom substrate surfaces having laterally arranged, longitudinally extending first, second, and third substrate regions, the first substrate region being directly laterally adjacent the first substrate side edge, the third substrate region being directly laterally adjacent the second substrate side edge, and the second substrate region being located laterally between the first and third substrate regions; and at least one circuit trace located on the selected substrate surface, with a portion of the circuit trace located in the first substrate region being made of only a first material, a portion of the circuit trace located in the third substrate region being made of only a second material, and a portion of the circuit trace located in the second substrate region being made of both the first and second materials.