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US08436439B2 Semiconductor device and method of forming a shielding layer over a semiconductor die after forming a build-up interconnect structure 有权
半导体器件以及在形成叠层互连结构之后在半导体管芯上形成屏蔽层的方法

Semiconductor device and method of forming a shielding layer over a semiconductor die after forming a build-up interconnect structure
Abstract:
A semiconductor device is made by forming an interconnect structure over a substrate. A semiconductor die is mounted to the interconnect structure. The semiconductor die is electrically connected to the interconnect structure. A ground pad is formed over the interconnect structure. An encapsulant is formed over the semiconductor die and interconnect structure. A shielding cage can be formed over the semiconductor die prior to forming the encapsulant. A shielding layer is formed over the encapsulant after forming the interconnect structure to isolate the semiconductor die with respect to inter-device interference. The shielding layer conforms to a geometry of the encapsulant and electrically connects to the ground pad. The shielding layer can be electrically connected to ground through a conductive pillar. A backside interconnect structure is formed over the interconnect structure, opposite the semiconductor die.
Abstract(Chinese):

通过在衬底上形成互连结构来制造半导体器件。 将半导体管芯安装到互连结构。 半导体管芯与互连结构电连接。 在互连结构上形成接地焊盘。 在半导体管芯和互连结构上形成密封剂。 在形成密封剂之前，可以在半导体管芯上方形成屏蔽笼。 在形成互连结构之后，在密封剂之上形成屏蔽层，以便相对于器件间干扰来隔离半导体管芯。 屏蔽层符合密封剂的几何形状并且电连接到接地垫。 屏蔽层可以通过导电柱电连接到地面。 在互连结构上形成背面互连结构，与半导体管芯相对。

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