エレクトロニクス実装学会誌
Online ISSN : 1884-121X
Print ISSN : 1343-9677
超極細線でのワイヤ流れに及ぼす引張強度の影響
三苫 修一高田 満生安原 和彦花田 信一
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2006 年 9 巻 1 号 p. 57-60

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In this study, we investigated the effect of wire strength on wire sweep after the semiconductor transfer molding assembly process. The wire sweep, loop height, and tensile strength of 25μm, 20μm, and 15μm diameter wires were measured. As the tensile strength of 25μm wires is higher, wire sweeps have a tendency to become smaller with 4.7 mm loops. However, such a trend is not shown in the case of 15μm wires. It is found that the wire sweep of 15μm wires depends on the loop height when the loop length is more than 4 mm, and it depends on the wire tensile strength when the loop length is less than 4 mm.

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