Invention Grant
- Patent Title: Semiconductor device and method of forming repassivation layer for robust low cost fan-out semiconductor package
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Application No.: US15367423Application Date: 2016-12-02
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Publication No.: US09754867B2Publication Date: 2017-09-05
- Inventor: Yaojian Lin , Kang Chen , Jianmin Fang , Xia Feng
- Applicant: STATS ChipPAC Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: STATS ChipPAC Pte. Ltd.
- Current Assignee: STATS ChipPAC Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Patent Law Group: Atkins and Associates, P.C.
- Agent Brian M. Kaufman; Robert D. Atkins
- Main IPC: H01L23/498
- IPC: H01L23/498 ; H01L21/768 ; H01L23/31 ; H01L21/56 ; H01L23/538 ; H01L23/00

Abstract:
A semiconductor device comprises a semiconductor die including a conductive layer. A first insulating layer is formed over the semiconductor die and conductive layer. An encapsulant is disposed over the semiconductor die. A compliant island is formed over the first insulating layer. An interconnect structure is formed over the compliant island. An under bump metallization (UBM) is formed over the compliant island. The compliant island includes a diameter greater than 5 μm larger than a diameter of the UBM. An opening is formed in the compliant island over the conductive layer. A second insulating layer is formed over the first insulating layer and compliant island. A third insulating layer is formed over an interface between the semiconductor die and the encapsulant. An opening is formed in the third insulating layer over the encapsulant for stress relief.
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