Patent ID: 7781324
Filing Date: 2010-08-24
Classification: H01L,H05K

Abstract:
1. A method of producing a wire-connection structure comprising: an insulating substrate providing step of providing an insulating substrate comprising a first surface and a second surface facing mutually, and in which a first space is formed to communicate the first surface with the second surface, and a second space is formed to communicate with the first space; a connection-objective member providing step of providing a connection-objective member comprising a contact point to be electrically connected to the insulating substrate; an arranging step of arranging the insulating substrate and the connection-objective member, such that an area of the insulating substrate, in which the first space is formed, faces the contact point of the connection-objective member; and a landing step of landing an electroconductive liquid droplet with a diameter greater than a width of the first space on the area of the insulating substrate in which the first space is formed, such that the electroconductive liquid droplet overlaps with the second space, wherein the first space forms a tube or a U-shaped notch in the insulating substrate and dimensions of the first space are the dimensions which allow the electroconductive liquid droplet to flow toward the second surface by an action of the capillary force acting on the electroconductive liquid droplet, the capillary force being a force acting on a liquid inside the tube or the U-shaped notch within the insulating substrate, and a width of the first space is smaller than a width of the second space.