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February 2016 • The PCB Magazine 15 new Material and proCess solutions for the eleCtroniC interConneCtion industry Figure 2: Printed conductors suitable for many of today's highest density circuits can be achieved as shown above. note that the contacts for the full array lead pitches shown, which range from 0.65 mm down to 0.4 mm, have reflowed solder contacts. It should also be recognized that the base material for this, and the other demonstration circuits shown in this paper, is polyester, a highly economical base material for PCB construction. Figure 3: The technology is not only capable of printing fine line features, it is suitable for making circuits having more than one conductive layer as is in evidence in the circuit pattern on both left and right halves of the image.