Synthesis of copper nanoparticles using copper hydroxide
Copper nanoparticles at good stability and highly dispersity were successfully prepared using copper hydroxide as a main salt and ascorbic acid as a reducing agent with PVP protective additives in liquid phase redox system.The produced copper nanoparticles were examined to be pure metallic without any impurities at a good spherical shape in the size range of 40-120nm,and suitable for the applications in IC packaging interconnect.It was found that the reaction temperature,amount of protective additives and molar ratio of copper hydroxide to ascorbic acid do have obvious influence in particles size and composition.In the paper,different amount of PVP were evaluated to check the storage stability of copper nanoparticle powders.
Copper nano-metallic materials Protective additives Die attach materials Storage stability
Xian Zeng Yu Zhang Chengqiang Cui Kai Zhang Xun Chen Xin Chen Jian Gao Yunbo He Hui Tang
Key Laboratory of Precision Microelectronic Manufacturing Technology & Equipment of Ministry of Education,School of Electromechanical Engineering Guangdong University of Technology Guangzhou,China
国际会议
上海
英文
1355-1358
2018-08-08（万方平台首次上网日期，不代表论文的发表时间）