Patent ID: 8402644

Claim:
A method of manufacturing an electronic parts packaging structure, comprising the steps of: preparing a plurality of sheet-like units each of which is constructed by a first insulating layer, a wiring formed on one surface of the first insulating layer, electronic parts connected to the wiring, a second insulating layer formed on an one surface side of the first insulating layer to cover the electronic parts, and a connecting portion for connecting electrically the wiring, and stacking mutually the units to arrange directions of unit adjacent in a thickness direction alternately oppositely, and bonding the units such that electronic parts of respective units are electrically connected mutually via connecting portions, wherein the step of preparing the unit includes a first step of forming the first insulating layer made of an insulating resin on a substrate, a second step of forming an opening by patterning the first insulating layer, a third step of forming a recess by etching the substrate exposed from the opening, a fourth step of forming a terminal by filling a metal in the opening, a fifth step of forming a wiring, which is connected to the terminal, on the first insulating layer, a sixth step of bonding the electronic parts onto the wiring, a seventh step of forming the second insulating layer, which covers the electronic parts, on the first insulating layer, an eighth step of forming a hole that reaches the wiring from an upper surface of the second insulating layer, a ninth step of forming a contact via by filling a metal in the hole, and a tenth step of removing the substrate, wherein the connection portions have the terminal and the contact via.