公开(公告)号：US20200039007A1

公开(公告)日：2020-02-06

申请号：US16487924

申请日：2018-02-23

Applicant: OSAKA UNIVERSITY

Inventor： Katsuaki SUGANUMA ,  Chuantong CHEN ,  Toshiyuki ISHINA ,  Seungjun NOH ,  Chanyang CHOE

IPC: B23K35/30 ,  H01L23/00

Abstract: A bonding member (10) includes surface-processed silver surfaces (11a, 11b).

公开(公告)号：US20220347799A1

公开(公告)日：2022-11-03

申请号：US17812352

申请日：2022-07-13

Applicant: OSAKA UNIVERSITY

Inventor： Katsuaki SUGANUMA ,  Chuantong CHEN ,  Toshiyuki ISHINA ,  Seungjun NOH ,  Chanyang CHOE

IPC: B23K35/30 ,  H01L23/00 ,  B32B15/01

Abstract: A bonding member (10) includes surface-processed silver surfaces (11a, 11b).

公开(公告)号：US20210366627A1

公开(公告)日：2021-11-25

申请号：US17397500

申请日：2021-08-09

Applicant: SENJU METAL INDUSTRY CO., LTD. ,  OSAKA UNIVERSITY

Inventor： Jinting JIU ,  Minoru UESHIMA ,  Katsuaki SUGANUMA ,  Wanli LI

IPC: H01B1/02 ,  C23C18/14 ,  C09D11/037 ,  C09D11/52 ,  C22C1/00 ,  C22C5/08 ,  C22C9/00 ,  C23C18/08

Abstract: A method for synthesizing a copper-silver alloy includes an ink preparation step, a coating step, a crystal nucleus formation step and a crystal nucleus synthesis step. In the ink preparation step, a copper salt particle, an amine-based solvent, and a silver salt particle are mixed, thereby preparing a copper-silver ink. In the coating step, a member to be coated is coated with the copper-silver ink. In the crystal nucleus formation step, at least one of a crystal nucleus of copper having a crystal grain diameter of 0.2 μm or less and a crystal nucleus of silver having a crystal grain diameter of 0.2 μm or less is formed from the copper-silver ink. In the crystal nucleus synthesis step, the crystal nucleus of copper and the crystal nucleus of silver are synthesized.

公开(公告)号：US20180104747A1

公开(公告)日：2018-04-19

申请号：US15555094

申请日：2016-03-04

Applicant: OSAKA UNIVERSITY

Inventor： Katsuaki SUGANUMA ,  Jinting JIU

IPC: B22F9/24 ,  B23K35/02 ,  B23K35/30

CPC classification number: B22F9/24 ,  B22F1/0014 ,  B22F2301/10 ,  B23K35/025 ,  B23K35/302 ,  H01B1/02 ,  H01B1/22

Abstract: A method for producing copper particles includes a preparation step and a heating step. In the preparation step, a copper compound, a salt of a main group metal, and a polyhydric alcohol are prepared. In the heating step, a mixture of the copper compound, the salt of the main group metal, and the polyhydric alcohol is heated. Preferably, the main group metal is at least one selected from the group consisting of lithium, beryllium, sodium, magnesium, aluminum, potassium, calcium, zinc, gallium, germanium, rubidium, strontium, cadmium, indium, tin, antimony, cesium, and barium.