金手指工艺课件

Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd Ellington 金 手 指 工 艺培訓教程 Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd金手指电镀工艺 一、金手指作用：为分离器件与其他硬件的接触提供低接触电阻，而电镀镍金则是为了增强其耐磨及抗腐蚀能力，同时也是为了增强其金手指部位导电性能。Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd二、金手指电镀工艺分析：1 ．工艺流程控：入板→微蚀→水洗→磨板→水洗→活化→水洗→镀镍→水洗→活化→水洗→镀金→金回收→水洗→烘干→出板； Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd2 ．各工序功能：1 ）微蚀：a) 除去表面氧化物；b) 提高铜层与镍层的结合力，即粗化铜表面Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd2 ）磨板：a) 除去表面污渍；b) 提高铜面光亮度Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd3 ）活化： 活化待电镀的铜 / 镍表面，并去除表面杂物Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd4 ）镀镍： 获得低应力的镍镀层，防止金铜渗透（分子迁离）Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd5 ）镀金： 获得耐磨的金钴合金镀层Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd3 ．金手指种类（主要有以下几种）1 ） PCI卡Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd2 ） AGP卡Ellington (Guang Dong) Electronics Technology Ellington (Guang Dong) Electronics Technology Co., LtdCo., Ltd3 ...