Semiconductor device and method of providing z-interconnect conductive pillars with inner polymer core

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United States of America Patent

PATENT NO 9640504
SERIAL NO

14224931

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Abstract

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A semiconductor device is made by providing a sacrificial substrate and depositing an adhesive layer over the sacrificial substrate. A first conductive layer is formed over the adhesive layer. A polymer pillar is formed over the first conductive layer. A second conductive layer is formed over the polymer pillar to create a conductive pillar with inner polymer core. A semiconductor die or component is mounted over the substrate. An encapsulant is deposited over the semiconductor die or component and around the conductive pillar. A first interconnect structure is formed over a first side of the encapsulant. The first interconnect structure is electrically connected to the conductive pillar. The sacrificial substrate and adhesive layers are removed. A second interconnect structure is formed over a second side of the encapsulant opposite the first interconnect structure. The second interconnect structure is electrically connected to the conductive pillar.

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Patent Owner(s)

  • STATS CHIPPAC PTE. LTE.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Do, Byung Tai Singapore, SG 246 5097
Huang, Shuangwu Singapore, SG 22 956
Pagaila, Reza A Tangerang, ID 161 5929

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