- 专利标题: Semiconductor structure and manufacturing method thereof
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申请号: US17429592申请日: 2020-06-15
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公开(公告)号: US11855032B2公开(公告)日: 2023-12-26
- 发明人: Ling-Yi Chuang
- 申请人: ChangXin Memory Technologies, Inc.
- 申请人地址: CN Hefei
- 专利权人: CHANGXIN MEMORY TECHNOLOGIES, INC.
- 当前专利权人: CHANGXIN MEMORY TECHNOLOGIES, INC.
- 当前专利权人地址: CN Hefei
- 代理机构: Alston & Bird LLP
- 优先权: CN 1911205447.1 2019.11.29
- 国际申请: PCT/CN2020/096085 2020.06.15
- 国际公布: WO2021/103489A 2021.06.03
- 进入国家日期: 2021-08-09
- 主分类号: H01L23/00
- IPC分类号: H01L23/00 ; H01L21/306
摘要:
The disclosed semiconductor structure includes a semiconductor substrate, a metal pad, a bump, a first solder layer, a barrier layer, and a second solder layer. The metal pad is disposed on the semiconductor substrate; the bump is arranged on the metal pad; the barrier layer is configured on the side of the bump away from the metal pad. The barrier layer includes a first surface and a second surface. The first solder layer is arranged between the bump and the first surface of the barrier layer. The second solder layer is configured on the second surface of the barrier layer. Since the first solder layer and the second solder layer are formed by reflowed and melt solder at a high temperature and can be stretched, the height of the second solder can be adjusted automatically, which reduces the non-wetting problem caused by the package substrate deformation after reflow.
公开/授权文献
- US20220115352A1 Semiconductor Structure And Manufacturing Method Thereof 公开/授权日:2022-04-14
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