Patent ID: 8491316

Claim:
A connection terminal, comprising: a signal terminal that connects one signal line on a first multilayer substrate and another signal line on a second multilayer substrate; a ground terminal that connects one ground line on the first multilayer substrate and another ground line in the second multilayer substrate; and an insulating holding medium that holds a pair of the signal terminal and the ground terminal at a distance, wherein: one of the signal terminal and the ground terminal includes a facing-layer connection that is connected to a surface layer facing the insulating holding medium with respect to at least one of the first and second multilayer substrates; and another of the signal terminal and the ground terminal includes a non-facing connection that is connected to a layer different from the facing surface layer via a terminal insertion hole of said one of the first and second multilayer substrates; and a signal line same layer ground terminal that connects the one ground line arranged on a same layer as the signal line on the first multilayer substrate connected with the signal terminal and the another ground line arranged on a same layer as the signal line on the second multilayer substrate connected with the signal terminal, wherein the insulating holding medium allows one row in which the signal terminals are arranged between a plurality of the signal line same layer ground terminals and another row including the ground terminals to face to each other and holds them.