大功率COB-LED荧光粉微涂覆过程建模与控制  

Modeling and Control of High-power COB-LED Phosphor Micro-coating Process

作　　者：陈雅倩 胡跃明[1] 杜娟[1] 万垂铭 曾照明 CHEN Ya-qian;HU Yue-ming;DU Juan;WAN Chui-ming;ZENG Zhao-ming(School of Automation Science and Engineering,South China University of Technology/Engineering Research Center of PrecisionElectronics Manufacturing Equipment/Ministry of Education & Guangdong Provincial Engineering Laboratory for Advanced ChipIntelligent Packaging Equipment,Guangzhou 510640,China;Guangdong Jingke Electronics Co.,Ltd.,Guangzhou 511458,China)

机构地区：[1]华南理工大学自动化科学与工程学院/精密电子制造装备教育部工程研究中心/广东省高端芯片智能封测装备工程实验室,广东广州510640 [2]广东晶科电子股份有限公司,广东广州511458

出　　处：《机电工程技术》2019年第6期49-52,共4页Mechanical & Electrical Engineering Technology

基　　金：国家自然科学基金项目(编号:61573146);广东省自然科学基金项目(编号:2016A030313454);广州市南沙区科技计划国际合作项目(编号:016GJ012);广东省应用型重大项目(编号:2015B010133003)

摘　　要：针对大功率COB-LED荧光粉微涂覆过程中工艺参数对涂层厚度的影响,以LED基板上的涂层厚度和均匀度为目标,采用均匀设计的实验方法,对雾化气压、涂覆时间、喷头高度等影响涂覆效果的主要参数进行了实验研究,并应用实验数据进行非线性输入回归得到了关于工艺参数的涂覆控制模型。实验结果表明:(1)雾化气压、涂覆时间对涂层厚度存在耦合作用,喷头高度与涂层厚度成负相关;(2)雾化气压、喷头高度对均匀性存在耦合作用,涂覆时间与均匀性无关。揭示了涂覆工艺参数之间的耦合作用,并在COB-LED荧光粉微涂覆过程中提供参数调节和控制的依据,在提高涂覆一致性的同时提高了生产效率。For improving the consistency of the coating effect in the phosphor micro coating process of COB-LED,a uniform design experimental method is adopted for the influences of process parameters on coating thickness.With the uniformity as the target,the factors affecting the coating effect:atomization pressure,coating time,nozzle height were studied,and the experimental data were subjected to nonlinear input regression to obtain a coating model with the process parameters.Experimental results show that:(1)There is a coupling relationship between the atomization pressure and the coating time on the coating thickness,and the nozzle height is negatively correlated with the coating thickness;(2)the atomization pressure and the nozzle height have a coupling relationship with the uniformity,and the coating time is independent of uniformity.This paper reveals the coupling between the coating process parameters,and provides the basis for parameter adjustment during the COB-LED phosphor micro-coating process as well as improves coating consistency and production efficiency.

关 键 词：COB-LED 涂覆模型 工艺参数 均匀设计 回归分析 

分 类 号：TN3[电子电信—物理电子学]