Invention Grant
- Patent Title: Split RDL connection between die and UBM
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Application No.: US17445330Application Date: 2021-08-18
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Publication No.: US12107058B2Publication Date: 2024-10-01
- Inventor: Jian Zuo , Yaojian Lin
- 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: H01L23/00
- IPC: H01L23/00

Abstract:
A semiconductor device has a semiconductor die. A first contact pad, second contact pad, and third contact pad are formed over the semiconductor die. An under-bump metallization layer (UBM) is formed over the first contact pad, second contact pad, and third contact pad. The UBM electrically connects the first contact pad to the second contact pad. The third contact pad is electrically isolated from the UBM. Conductive traces can be formed extending between the first contact pad and second contact pad under the UBM. A fourth contact pad can be formed over the first contact pad and a fifth contact pad can be formed over the second contact pad. The UBM is then formed over the fourth and fifth contact pads.
Public/Granted literature
- US20230056780A1 Split RDL Connection Between Die and UBM Public/Granted day:2023-02-23
Information query
IPC分类: