发光二极管光源引起的阻焊膜波纹改善  

Improved solder mask ripple caused by LED light source

作　　者：廖根望 LIAO Genwang(Jiyan Xinyang Electronics Co.,Ltd.,Ganzhou 341600,Jiangxi,China)

机构地区：[1]技研新阳电子有限公司,江西赣州341600

出　　处：《印制电路信息》2023年第4期46-49,共4页Printed Circuit Information

摘　　要：分析发光二极管(LED)生产制造中阻焊膜缺陷的原因,通过鱼骨图对阻焊膜波纹产生的原因进行分析,列出主要影响因素。根据阻焊膜感光特性,分别验证感光固化条件、不同LED对阻焊膜波纹的影响性测试。实验结果表明:LED光源不能对底层油墨进行有效光固化,导致波纹现象产生。提出改善预防措施,并详细介绍了如何通过改造灯源降低LED生产过程中阻焊膜波纹异常的方法。The causes of solder mask defects in the production and manufacturing of light-emitting diodes(LEDs)were analyzed,the causes of solder mask film ripples were analyzed through fishbone diagrams,the main influencing factors were listed,and the photocuring conditions and the influence of different light-emitting diodes on the ripples of solder mask film were verified according to the photosensitive characteristics of the solder mask film,and the influence of different light-emitting diode wavelengths on the ripple of the solder mask film was finally obtained according to the experimental results,which was that the LED light source process could not effectively cure the underlying ink,resulting in corrugation.At the same time,the paper proposes preventive measures for improvement,and details how to reduce the abnormal ripple of the solder mask film in the LED production process through lamp source transformation.

关 键 词：发光二极管(LED)曝光机 UV光波长 吸收光谱 感光固化 

分 类 号：TN41[电子电信—微电子学与固体电子学]