Invention Grant
- Patent Title: Mixed under bump metallurgy (UBM) interconnect bridge structure
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Application No.: US16752642Application Date: 2020-01-25
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Publication No.: US11139269B2Publication Date: 2021-10-05
- Inventor: Kamal K. Sikka , Paul S. Andry , Yang Liu , Pascale Gagnon , Christian Bergeron , Maryse Cournoyer
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Intelletek Law Group, PLLC
- Agent Gabriel Daniel, Esq.
- Main IPC: H01L25/065
- IPC: H01L25/065 ; H01L23/31 ; H01L23/42 ; H01L23/538 ; H01L25/00 ; H01L23/00

Abstract:
An electronic package and a method of manufacture includes a substrate having an upper surface with a trench formed in a bridge region. First pads are arranged on the upper surface of the substrate, outside of the bridge region, and a bridge is positioned in the trench. A plurality of second pads are arranged on an upper surface of the bridge. A plurality of pillars are electrically coupled to the plurality of second pads. Two or more semiconductor chips are positioned in a side-by-side proximal arrangement overlaying the bridge and the substrate. A first semiconductor chip is joined to the bridge, then a second semiconductor chip is joined to the bridge, followed by attaching the chip-bridge assembly to the substrate with the bridge positioned within the substrate trench. Each of the two or more semiconductor chips have first electrical connections including bumps, and second electrical connections including third pads.
Public/Granted literature
- US20210233892A1 Mixed Under Bump Metallurgy (UBM) Interconnect Bridge Structure Public/Granted day:2021-07-29
Information query
IPC分类: