Patent ID: 7422974

Claim:
A method of manufacturing an electronic component mounting body for use in mounting an electronic component having a plurality of bumps as external mounting terminals on a base material made of thermoplastic resin, the method comprising: a bump embedding step of embedding the bumps into the base material by heating and pressing the electronic component against and partially through the base material; exposing a portion of the bumps onto a surface of the base material that is opposite to the side that the electronic component is pressed against; and a conductor forming step of forming a conductor conductively connected to the bumps by arranging a conductive material on the base material surface on which the portion of the bumps is exposed, the conductor forming step comprising: forming a pattern of a mask material on the base material at which the portion of the bumps is exposed by arranging photoresist on the base material, exposing the photoresist using the portion of the bumps exposed through the base material as a reference for forming the pattern of the mask material, and developing the photoresist; and selectively arranging the conductor on the base material using the mask material as a mask.