Patent ID: 11911854
Assignee: SENJU METAL INDUSTRY CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  C | IPC B  C

Claim 2:
3. A solder alloy having an alloy composition consisting of, by mass:
Sb: 9.0 to 33.0%;
Ag: more than 4.0% and less than 11.0%;
Cu: more than 2.0% and less than 6.0%; and
the balance being Sn,
wherein said solder alloy has an alloy structure comprising at least one of: an Ag3Sn compound, a Cu3Sn compound, a Cu6Sn5 compound, and a SnSb compound, and the balance being a Sn phase, and
wherein in said alloy structure, an amount of the Ag3Sn compound is 13.9 to 15.4 at. %, an amount of the Cu3Sn compound is 1.0 to 2.8 at. %, an amount of the Cu6Sn5 compound is 5.6 to 15.3 at. %, and an amount of the SnSb compound is 16.8 to 62.1 at. %.