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Study of factors affecting the hardness of ball bonds in copper wire bonding

日期：2025-07-11

Different combinations of EFO current and firing time settings were used to obtain the same FAB diameter ......

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一.銲線基本理論

日期：2025-07-12

Wire Diameter. (依實際使用金線尺寸設定). FAB Size (Spec1.85-2.2mils) (燒球大小). EFO Current. (放電電流大小). EFO Gap. (放電間隙). Tail Extension. (預留線尾 ......

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Dynamics of Free Air Ball Formation in Thermosonic Wire ...

日期：2025-07-07

and model depend only on the EFO current. The FAB formation speed can be as high as 90.4 μm/ms at an EFO current of. 60 mA. A minimum EFO time is ......

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IEEE Xplore Abstract - Effect of EFO settings on ...

日期：2025-07-12

Effect of EFO settings on microstructure and hardness in the FAB of copper bonding ... Low EFO current results in larger grain size in both FAB and ball neck....

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Effect of EFO parameters on Cu FAB hardness and work ...

日期：2025-07-08

Cu FABs produced using EFO current (I EFO) and EFO time (t. EFO) of 250mA and 0.118ms, respectively, have 14.29HV (21%) higher hardness than those ......

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日期：2025-07-13

EFO time, EFO gap and recrystallization were also studied. The results show ... With the increase of EFO current and time, the length of HAZ becomes longer....

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Copper Wire Bonding - 第 21 頁 - Google 圖書結果

日期：2025-07-13

2.5.2 Electric Flame-Off Current and Firing Time EFO current is supplied to form an FAB [79] during the first step in the wire bonding cycle. The heat-affected ......

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