PurposeThe purpose of this paper is to investigate the effects of H2 flow rate
on improving the solder wettability of oxidized‐copper with liquid lead‐free
solder (96.5Sn‐3Ag‐0.5Cu) by Ar‐H2 plasmas. The aim was to improve the solder
wettability of oxidized copper from 0 per cent wetting of copper oxidized in air
at 260oC for 1 hour to 100 per cent wetting of oxidized‐copper modified by Ar‐H2
plas... hiện toàn bộ
Solder has been the primary method of component attachment since the early days
of radio. This tradition carries with it an overhead which becomes increasingly
expensive as the degree of miniaturisation increases. Solderless interconnect
methods, however, are often overlooked or unfairly discounted as unreliable.
Surprisingly, solderless connections can be mechanically superior to and
environmenta... hiện toàn bộ