SURFACE MICROANALYSIS OF TIN AND BISMUTH-TIN COATINGS BY MEANS OF INSTANTANEOUS RADIATION FROM NUCLEAR REACTIONS.

被引：0

作者：

Tyutina, K.M. ^{[1
]}

Kuz'min, L.E. ^{[1
]}

Popov, N.V. ^{[1
]}

Popov, A.N. ^{[1
]}

Shapkin, N.I. ^{[1
]}

机构：

[1] D. I. Mendeleev Chemicotechnological, Inst, Moscow, USSR, D. I. Mendeleev Chemicotechnological Inst, Moscow, USSR

来源：

Protection of Metals (English translation of Zaschita Metallov) | 1985年 / 21卷 / 03期

关键词：

ELECTRONIC CIRCUITS - Soldering - SURFACES - Microanalysis - TIN BISMUTH ALLOYS - Oxidation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The authors investigated the surface and bulk oxygen and carbon contents of tin and tin-bismuth alloy coatings immediately after deposition and 6 months later to find out why solderability is preserved for a long time in lustrous coatings and bismuth-alloyed coatings. Mat coatings lose solderability owing to rapid oxidation of the surface. The large inclusions of organic additives in lustrous coatings can improve solderability.

引用

页码：379 / 380