发明授权
US09041207B2 Method to increase I/O density and reduce layer counts in BBUL packages 有权
增加BBUL封装中I / O密度和减少层数的方法

Method to increase I/O density and reduce layer counts in BBUL packages
摘要:
An apparatus including a die including a dielectric material on a device side, an insulating layer surrounding a die area and embedding a thickness dimension of the die; and a carrier including a plurality of layers of conductive material disposed on the device side of the die, a first one of the layers of conductive materials being formed on the insulating layer and patterned into traces at least a portion of which are connected to respective contact points on the die. A method including disposing a die on a sacrificial substrate with a device side of the die opposite the sacrificial substrate; disposing a mold on the sacrificial substrate around; introducing an insulating material into a chase of the mold; removing the mold; forming a carrier on the insulating material adjacent a device side of a die; and separating the die and the carrier from the sacrificial substrate.
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