Patent ID: 8664106
Filing Date: 2014-03-04
Classification: B23K,H01L

Abstract:
1. A method of manufacturing a semiconductor device, wherein a first substrate where first electrode pads are formed and a second substrate where second electrode pads are formed are stacked and the first electrode pads and the corresponding second electrode pads are electrically connected thereby forming the semiconductor device, wherein the second substrate includes a through-hole having an opening that contacts a corresponding one of the second electrode pads, the method comprising steps of: performing a first hydrophilic treatment with respect to the first electrode pads; supplying a liquid to a surface where the first electrode pads are formed in the first substrate; placing the second substrate on the first substrate to which the liquid is supplied so that the surface where the first electrode pads are formed opposes a surface where the second electrode pads are formed, thereby aligning the first electrode pads and the second electrode pads by use of the liquid that gathers in the first electrode pads that have been subject to the first hydrophilic treatment; and causing an electrically conductive liquid to flow into the through-hole from another opening open in a surface of the second substrate, the surface opposing a surface facing the first substrate, thereby electrically connecting the first electrode pads and the second electrode pads, after the step of placing.