Patent ID: 8093505

Claim:
A layered electronic circuit device comprising: a first circuit substrate having first end-face electrodes at the peripheral end faces of said first circuit substrate having a first pitch; a second circuit substrate having second end-face electrodes at the peripheral end faces of said second circuit substrate having a second pitch, and being opposed to the first circuit substrate; and a connection member electrically connecting the first end-face electrodes and the second end-face electrodes via a thermosetting insulating sheet or paste containing conductive particles; wherein the connection member comprises a plurality of wiring members on a surface of a base material and extending along a direction perpendicular to the first and second circuit substrates, the wiring members having a shorter pitch in a peripheral direction of the first and second circuit substrates than the first and second pitches, and the first and second end-face electrodes and the wiring members are electrically connected.