发明名称 Improvements in or relating to methods of forming solder mounds on substrates
摘要 A solder, e.g. tin-lead, mound is formed on an integrated circuit member by placing a mask around a land which may be a Au, Cu, Cr laminate, vapour depositing the solder on the land, removing the mask, and then heating under a flux or in a reducing atmosphere to melt the solder and cause it to draw up into a mound, due to the surface tension effect.
申请公布号 GB1097898(A) 申请公布日期 1968.01.03
申请号 GB19660054443 申请日期 1966.12.06
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人
分类号 H01L21/00;H01L21/60;H01L23/485;H01R12/55 主分类号 H01L21/00
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