Patent ID: 9545015
Date: 2017-01-10
CPC Classifications: B41J,H01L,H05K,Y10T

Claim:
1. A method for connecting two objects electrically by an electroconductive liquid, comprising: providing a substrate having a first surface and a second surface which is opposite to the first surface with respect to a thickness direction of the substrate; forming a channel of the liquid on the first surface of the substrate to extend along the first surface of the substrate; forming a through hole in the substrate which communicates with the channel and defines openings on the first and second surfaces, respectively; forming, as one of the two objects, a wiring proximate to the first surface, wherein the wiring extends into an opening of the through hole; arranging the two objects such that the substrate interposes the two objects, wherein the two objects overlap with the openings of the through hole, respectively, as viewed in the thickness direction of the substrate; filling the liquid to the through hole via the channel, by a capillary force or a surface tension between the liquid and a channel-defining surface; bringing the liquid filled in the through hole in contact with the two objects; and hardening the liquid filled in the through hole, wherein, when bringing the liquid filled in the through hole in contact with the two objects, the liquid is supplied into the through hole, via the channel, until a surface of the liquid at an end opening of the through hole bulges to form a projection due to surface tension, and the projection of the surface of the liquid makes contact with one of the two objects.