超细Cu粉在导电浆料中的烧结性能研究  

Study on sintering performance of ultrafine copper powder in conductive paste

作　　者：雷晓旭[1,2,3] 刘文平[1,2,3] 秦海青[1,2,3] 林峰[1,2,3] 张振军[1,2,3] 张健伟[1,2,3] 

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004 [2]国家特种矿物材料工程技术研究中心,广西桂林541004 [3]广西超硬材料重点实验室,广西桂林541004

出　　处：《粉末冶金工业》2014年第5期24-28,共5页Powder Metallurgy Industry

基　　金：广西省科学研究与技术开发计划项目(1270010;1298009-15;13129030)

摘　　要：为了得到Cu导电浆料所需的纳米金属粉,通过直流电弧等离子法制备纳米Cu粉,利用X射线衍射（XRD）、FESEM等测试手段对Cu粉的晶体结构、形貌进行表征.以丙烯酸树脂、乙基纤维素和松油醇为有机载体,采用超细Cu粉（质量分数70％）为导电相配制了导电浆料,研究了不同烧结温度（450～600℃）及烧结时间（15～60 min）下Cu导电浆料的导电特性及形貌变化.结果表明,烧结工艺对导电膜层的导电性能影响较大,随着烧结温度的升高和保温时间的延长,浆料层的导电能力增强,方阻逐渐减小;600℃烧结60min时,浆料方阻最小,可达到14.8 mΩ/□.In order to obtain the metal ultrafine copper conductor paste,the ultrafine copper powder was prepared by direct current arc plasma evaporation method,the crystalline structure and morphology of copper powder were characterized by X-ray diffraction（XRD）,field emission scanning electron microscope （FESEM）.With acrylic resin,ethyl cellulose and terpineol as organic carrier,ultrafine copper powder （mass percent of 70％） as conductive phase,the copper conducting pastes were prepared.The conductive properties and morphology of pastes under different sintering temperature （450～600 ℃） and holding time （15～60 min） were studied.The results show that the sintering process has a great influence on the conductive properties of the paste.As the sintering temperature and holding time increase,the square resistance of conductive copper paste reduces gradually,and the conductivity of the paste is enhanced.The conductive copper paste sintered at 600 ℃ for 60 min has the square resistance of 14.8 m Ω/.

关 键 词：超细Cu粉 导电Cu浆 烧结性能 导电性能 

分 类 号：TM24[一般工业技术—材料科学与工程]