| 摘要 |
A solder has the following percentage composition, by weight:- .Pb.2-25 .Sn.0-4 .Cd.0-2 .In.the balance The solder may be used to solder a connection, e.g. of platinum or tinned copper, to a semi-conductor body, e.g. of indium antimonide. Before soldering the semi-conductor body may be plated, e.g with copper, gold or platinum. A suitable soldering flux consists of concentrated hydrochloric acid, glycerol and demineralized water in the proportions of 1 : 2 : 1 by volume.
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