公开(公告)号：US12115602B2

公开(公告)日：2024-10-15

申请号：US17309818

申请日：2019-12-26

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Ranjit Pandher ,  Niveditha Nagarajan ,  Anil Kumar ,  Morgana de Avila Ribas ,  Gyan Dutt ,  Siuli Sarkar ,  Carl Bilgrien

IPC: B23K35/00 ,  B23K35/26 ,  C22C13/00

CPC classification number: B23K35/262 ,  C22C13/00

Abstract: A lead-free solder alloy comprising: from 1 to 9 wt. % copper, at least one of: from greater than 0 to 1 wt. % nickel, from greater than 0 to 10 wt. % germanium, from greater than 0 to 10 wt. % manganese, from greater than 0 to 10 wt. % aluminium, from greater than 0 to 10 wt. % silicon, from greater than 0 to 9 wt. % bismuth, from greater than 0 to 5 wt. % indium, from greater than 0 to 1 wt. % titanium, from greater than 0 to 2 wt. % lanthanum, from greater than 0 to 2 wt. % neodymium, optionally one or more of: up to 1 wt. % for: chromium, gallium, cobalt, iron, phosphorous, gold, tellurium, selenium, calcium, vanadium, molybdenum, platinum, magnesium; up to 5 wt. % silver, up to 1 wt. % zinc, up to 2 wt. % rare earth metals, excluding lanthanum and neodymium, and the balance tin together with any unavoidable impurities.