Issue link: https://iconnect007.uberflip.com/i/1248324
64 PCB007 MAGAZINE I MAY 2020 For the solder ball reflowed test vehicle, a solder ball kit at the same pitch as our test ve- hicles was procured, and then the two test ve- hicles were reflowed together. A cross-section of this configuration is shown in Figure 9. Sur- prisingly, this happened to be one of the more costly solutions in our testing. The ISC International elastomer that was used is composed of a specialized silicon rub- ber. This specialized silicon rubber is formed into the contact locations and filled with a con- ductive material. When compressed, these con- tact locations, which are designed at the same pitch as our test vehicle, make the electrical connection between the top and bottom of it. A Z-axis view and two cross-section views are shown in Figures 10, 11, and 12, respectively. A benefit to both the elastomer solution and the connector solutions is that since they do not form a permanent bond, the main PCB can be generic and designed to connect and attach to numerous other PCBs, each of different de- signs and functions. Figure 6: Samtec Z-Ray© cross-section depiction. Figure 7: Plastronics 400 T033 HPin connector, side 1. Figure 9: Solder ball reflowed cross-section. Figure 8: Plastronics 400 T033 HPin connector, side 2.