Patent ID: 8826527
Filing Date: 2014-09-09
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a printed circuit board, comprising: providing an electronic component with connection terminals on its upper surface; including a copper foil and an insulation laver, which forms a substrate to have a thickness ranging from 80 to 120% of a thickness of the electronic component; forming a cavity in the substrate in a thickness direction; forming a tape on the lower surface of the substrate and mounting the electronic component on the tape exposed through the cavity; burying the electronic component in a face down manner and applying an insulation material layer to have a thickness ranging from 5 to 40% of a thickness of the electronic component from the upper surface of the substrate; and forming a first circuit layer with a connection pattern connected with the connection terminals electrically on the lower surface of the substrate, and a second circuit layer on the insulation material layer; wherein a thermal expansion coefficient and an elastic modulus of the insulation material layer are less than the ones of the insulation layer: and the copper foil is formed on the lower surface of the substrate.