- Patent Title: Layered bonding material, semiconductor package, and power module
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Application No.: US18288636Application Date: 2022-04-18
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Publication No.: US12080671B2Publication Date: 2024-09-03
- Inventor: Naoto Kameda , Kanta Dei , Masato Tsuchiya
- Applicant: SENJU METAL INDUSTRY CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: SENJU METAL INDUSTRY CO., LTD.
- Current Assignee: SENJU METAL INDUSTRY CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP 21076312 2021.04.28
- International Application: PCT/JP2022/017980 2022.04.18
- International Announcement: WO2022/230697A 2022.11.03
- Date entered country: 2023-10-27
- Main IPC: H01L23/00
- IPC: H01L23/00 ; B23K1/00 ; B23K101/40 ; B23K103/12 ; B23K103/16 ; B32B15/01

Abstract:
A layered bonding material 10 includes a base material 11, a first solder section 12a stacked on a first surface of the base material 11, and a second solder section 12b stacked on a second surface of the base material 11. A coefficient of linear expansion of the base material 11 is 5.5 to 15.5 ppm/K, the first solder section 12a and the second solder section 12b are made of lead-free solder, and both of a thickness of the first solder section 12a and a thickness of the second solder section 12b are 0.05 to 1.0 mm.
Public/Granted literature
- US20240213206A1 LAYERED BONDING MATERIAL, SEMICONDUCTOR PACKAGE, AND POWER MODULE Public/Granted day:2024-06-27
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