Patent ID: 8778733
Filing Date: 2014-07-15
Classification: H01L

Abstract:
1. A method of forming a semiconductor package, the method comprising: placing a first die and a second die over a carrier, the first die being a different type of die from the second die; covering at least one of the first and the second dies with an encapsulation material to form a encapsulant having a top surface and an opposite bottom surface; placing a pillar over the carrier before covering the first and the second dies with the encapsulation material; thinning the encapsulant from the bottom surface to expose a first surface of the first die without exposing the second die; and forming a back side conductive layer contacting the first die, wherein the second die is separated from the back side conductive layer by a first portion of the encapsulant; and removing the pillar completely after thinning the encapsulant.