Patent ID: 8183090
Filing Date: 2012-05-22
Classification: H01L,H05K,Y02P,Y10T

Abstract:
1. A method of manufacturing a device mounting board adapted to mount a device, comprising: a first step of providing a first circuit substrate that includes a first conductive part on an insulating layer, wherein the first conductive part has a trapezoidal cross section with its top tapered toward the outside of the first circuit substrate; and a second step of providing a second circuit substrate having a second conductive part, and applying a pressure to the second circuit substrate with the second conductive part being in contact with the first conductive part so that the second conductive part is pushed into the insulating layer together with the first conductive part, thereby fixing the second circuit substrate onto the first circuit substrate, wherein bonding pressure is applied while a size of the second conductive part at a connecting surface between the first conductive part and the second conductive part is smaller than that of the first conductive part at the same connecting surface.