| 高密度PCB对CO2激光吸收率的应用研究 |
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| 引用本文： | 丁黎光,徐梦廓. 高密度PCB对CO2激光吸收率的应用研究[J]. 广西工学院学报, 2010, 21(1): 65-67 |
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| 作者姓名： | 丁黎光 徐梦廓 |
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| 作者单位： | 广西工学院,机械工程系,广西,柳州,545006;广西工学院,机械工程系,广西,柳州,545006 |
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| 基金项目： | 广西区自然科学基金(桂科自04810091)资助 |
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| 摘 要： | 高密度PCB板的微细孔加工普遍采用激光加工微孔,但PCB板中铜箔对CO2激光的反射率高,会造成铜箔突起和裂纹,能量过小时又无法进行加工,若采用保型掩模加工技术,工艺较复杂.通过光致等离子体分析研究了提高铜箔对激光能量吸收的方法,实验表明:该方法不仅可简化加工步骤,还可进一步提高加工效率.
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| 关 键 词： | 激光加工 高密度PCB 吸收率 |
The applied research of CO2 laser absorptivity for high-density PCB |
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| DING Li-guang,XU Meng-kuo. The applied research of CO2 laser absorptivity for high-density PCB[J]. Journal of Guangxi University of Technology, 2010, 21(1): 65-67 |
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| Authors: | DING Li-guang XU Meng-kuo |
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| Affiliation: | Department of Mechanical Engineering;Guangxi University of Technology;Liuzhou 545006;China |
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| Abstract: | Microvia manufacture on HD-PCB is one of the important techniques in microelectronics manufacture.With laser drilling via the efficiency have improved.The copper foil in PCB has high reflectivity for CO2 laser and will make copper foil protuberance and crack and low energy can't hold the drilling process.And the conformal mask laser drilling method will make technologies complex.This paper studies the method to improve absorptivity for copper foil through photo-plasma.The test results show that the method w... |
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| Keywords: | laser processing HD-PCB absorptivity |
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