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公开(公告)号:US20240389478A1
公开(公告)日:2024-11-21
申请号:US18784252
申请日:2024-07-25
Applicant: Fujitsu Limited
Inventor: Masatoshi TAKENOUCHI , Norinao KOUMA , Takeaki SHIMANOUCHI , Tsuyoshi TAKAHASHI
Abstract: An electronic device including: a bump that includes a tapered protrusion and a tapered conductive film, the tapered protrusion including a base material of a substrate and of which an area of a cross section that intersects with a normal direction of the substrate is gradually reduced toward a front end, the tapered conductive film being a part of the bump that covers a surface of the protrusion and reflects a shape of the protrusion.