白光LED用铝/氧化铝复合陶瓷基板铝表面层形貌及光学特性  

Aluminum Surface Morphologies and Optical Properties of Al/Al_2O_3 Composite Ceramic Substrate for White LEDs

作　　者：费盟 傅仁利[1] 张鹏飞[1] 杨扬[1] 蔡君德 冯翔宇[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京210016

出　　处：《光学学报》2016年第1期207-213,共7页Acta Optica Sinica

基　　金：江苏高校优势学科建设工程

摘　　要：利用钎焊工艺实现氧化铝敷铜陶瓷基板与铝箔的连接,成功制备出了具备良好导热性能的新型铝/氧化铝复合陶瓷基板。采用机械抛光、化学抛光和电解抛光等方式对铝表面层进行抛光处理。研究结果表明机械抛光、化学抛光和电解抛光等抛光方式均可有效提高铝层表面的光洁度和平整度。而复合抛光即先化学抛光再电解抛光的样品表面粗糙度最低、平整度最好,样品表面反光率在4种抛光方式中最高。The bonding of aluminum film with coated copper alumina substrate is realized by brazing technology. The new type Al/Al2O3 composite ceramic substrate with high thermal conductivity is successfully prepared. Mechanical polishing, chemical polishing and electrolytic polishing methods are carried out for aluminum film polishing on the surface of composite substrate. Research results show that all of these polishing methods can improve the aluminum film surface roughness and enhance the reflective rate of aluminum film. Moreover, the sample processed by chemical and electrolytic polishing method has the lowest surface roughness and highest reflective rate compared with other polishing methods.

关 键 词：材料 钎焊 AL/AL2O3 复合基板 三维形貌 粗糙度 反光率 

分 类 号：TN305.94[电子电信—物理电子学]