Patent ID: 7874066
Filing Date: 2011-01-25
Classification: H01L,H05K,Y10T

Abstract:
1. A method for manufacturing a device-incorporated substrate having an insulating layer, a conductor pattern thereon, a void section formed therein, and an electric device housed in said void section and connected to said conductor pattern, said method comprising: providing an insulating layer; a void section forming step of forming a void section in said insulating layer; providing a transfer sheet comprising a metallic base and a dissolvee metal layer over the metallic base, the transfer sheet being formed separate from, and un-connected to, said insulating layer; a pattern forming step of forming a conductor pattern over one surface of said transfer sheet; a pattern transfer step of adhering said transfer sheet and said insulating layer to each other with said conductor pattern therebetween; a transfer sheet removal step for removing said transfer sheet from at least said conductor pattern; a device housing step of housing said electric device within said void section, with said electric device connected to said conductor pattern, the device housing step occurring after the pattern transfer step and before the transfer sheet removal step; and wherein neither the metallic base nor the dissolvee metal layer of the transfer sheet is removed prior to said transfer sheet removal step, and said transfer sheet removal step includes dissolving and removing at least a part of said transfer sheet, including at least the dissolvee metal layer, and wherein said pattern transfer step occurs after said pattern forming step, and said transfer sheet removal step occurs after said pattern transfer step and wherein the electric device that is housed in the void section is directly electrically connected to the conductor pattern via material that is physically in contact with contacts of the electric device and the conductor pattern that is applied to the insulating layer in which the electric device is located.