Connecting member and a connecting method using the same

Details Connecting member and a connecting method using the same Connecting member and a connecting method using the same

H - Electricity

05

K

H05K 1/14 (2006.01) H01L 23/495 (2006.01) H01L 23/498 (2006.01) H05K 1/18 (2006.01) H05K 3/34 (2006.01) H05K 3/36 (2006.01)

Patent

CA 2154409

A connecting member includes a substantially spherical core and solder covering the core. A first substrate has a first pad on the lower surface and a through-hole at the position of the first pad. A second substrate has a second pad on the upper surface. A solder paste is provided on the second pad of the second substrate. The connecting member is positioned on the solder paste. The first substrate is positioned so that the first pad faces the connecting member. The connecting member and the solder paste are heated at a temperature so that the core does not melt. The solder paste and the solder of the connecting member melts to connect the first and second pads. The solder paste and the solder of the connecting member flows into the through-hole. A faulty connection can be detected by confirming whether at least a portion of the solder paste and the solder of the connecting member is protruding from the through-hole of the first substrate.

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