Patent ID: 8633061
Filing Date: 2014-01-21
Classification: H01L

Abstract:
1. A method for fabricating a package structure, comprising: providing a semiconductor chip having an active surface and an opposite inactive surface, wherein the active surface has electrode pads thereon, conductive bumps are formed on the electrode pads, a protective buffer layer is formed on the active surface to cover the conductive bumps, and the semiconductor chip is mounted on a carrier board via the protective buffer layer; combining the inactive surface of the semiconductor chip with a metal sheet having perforations arranged around a periphery of the inactive surface of the semiconductor chip; filling through the perforations a space between the carrier board and the metal sheet with an encapsulant, to encapsulate the semiconductor chip; removing the carrier board to expose the protective buffer layer; and forming on the encapsulant and the protective buffer layer a circuit fan-out layer having conductive vias penetrating the protective buffer layer and electrically connecting to the conductive bumps.