| 基于最小能量原理的LCCC焊点三维形态建模与预测 |
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| 引用本文： | 阎德劲,周德俭,黄春跃,吴兆华. 基于最小能量原理的LCCC焊点三维形态建模与预测[J]. 桂林工学院学报, 2006, 26(1): 107-110 |
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| 作者姓名： | 阎德劲 周德俭 黄春跃 吴兆华 |
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| 作者单位： | 1. 桂林电子工业学院,机电与交通工程系,广西,桂林,541004
2. 桂林电子工业学院,机电与交通工程系,广西,桂林,541004;桂林工学院,广西,桂林,541004 |
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| 基金项目： | 广西自然科学基金资助项目（02336060） |
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| 摘 要： | 基于最小能量原理和焊点形态理论,建立了LCCC器件焊点三维形态预测模型.运用该模型对焊点钎料桥连过程进行了数值模拟.结果表明,钎料体积、间隙高度、焊盘尺寸对LCCC焊点三维形态有显著的影响.在间隙高度为0.03 mm、宽度为0.70 mm、焊盘长度为1.90 mm的条件下,避免焊点产生桥连的临界钎料体积为0.725 mm3.
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| 关 键 词： | SMT 焊点形态 最小能量原理 钎料桥连 |
| 文章编号： | 1006-544X(2006)01-0107-04 |
| 收稿时间： | 2005-03-30 |
| 修稿时间： | 2005-03-30 |
Modeling and predicting of LCCC solder Joint 3-D shape by minimum potential energy theory |
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| YAN De-jin,ZHOU De-jian,HUANG Chun-yue,WU Zhao-hua. Modeling and predicting of LCCC solder Joint 3-D shape by minimum potential energy theory[J]. Journal of Guilin University of Technology, 2006, 26(1): 107-110 |
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| Authors: | YAN De-jin ZHOU De-jian HUANG Chun-yue WU Zhao-hua |
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| Affiliation: | 1. Department of Electronic Machinery and Traffic Engineering, Guilin University of Electronic Technology, Guilin 541004, China; 2. Guilin University of Technology, Guilin 541004, China |
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| Abstract: | The 3-D evolving model of LCCC solder joint shape is based on the minimal energy principle and the solder joint shape theory.The process of LCCC solder joint bridge is simulated numerically.The results show that the volume of solder,interstice height,and size of bonding pad have a remarkable effect on the 3-D shapes of LCCC solder joint.When the interstice height is 0.03 mm,the width and length of bonding pad is 0.70 and 1.90 mm respectively.The volume of solder is less than 0.725 mm~3 to avoid formation of the solder joint bridge. |
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| Keywords: | SMT solder joint shape minimum potential energy theorem solder joint bridging |
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