METHOD FOR IMPROVING FURTHER RELIABILITY OF ELECTRONIC HOUSING BY PREVENTING FORMATION OF METALLIC WHISKER ON SHEETUTILIZED FOR MANUFACTURE OF THE ELECTRONIC HOUSING

摘要

PROBLEM TO BE SOLVED: To prevent the problem of a whisker from being generated in a zinc coating on a steel sheet. SOLUTION: A metal sheet for an electronic housing that has zinc covering a steel base and a thin metal film covering a zinc coating covering on one surface or both surfaces of a sheet and preferably consisting of a copper thin film and the metal thin film are created. The metal thin film reduces the formation of the whisker of zinc of the zinc coating.