Semiconductor device and method of forming conductive vias using backside via reveal and selective passivation

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United States of America Patent

PATENT NO 9865524
SERIAL NO

14222547

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Abstract

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A semiconductor device includes a plurality of semiconductor die and a plurality of conductive vias formed in the semiconductor die. An insulating layer is formed over the semiconductor die while leaving the conductive vias exposed. An interconnect structure is formed over the insulating layer and conductive vias. The insulating layer is formed using electrografting or oxidation. An under bump metallization is formed over the conductive vias. A portion of the semiconductor die is removed to expose the conductive vias. The interconnect structure is formed over two or more of the conductive vias. A portion of the semiconductor die is removed to leave the conductive vias with a height greater than a height of the semiconductor die. A second insulating layer is formed over the first insulating layer. A portion of the second insulating layer is removed to expose the conductive via.

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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
Marimuthu, Pandi C Singapore, SG 66 1470
Na, Duk Ju Singapore, SG 10 66
Yong, Chang Beom Singapore, SG 5 26

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