首页 | 本学科首页   官方微博 | 高级检索  
     

多波形电流镀镍层厚度对引线疲劳强度的影响
引用本文:郭茂玉,江洪涛,许维源,马金娣. 多波形电流镀镍层厚度对引线疲劳强度的影响[J]. 电镀与精饰, 2001, 23(4): 5-8
作者姓名:郭茂玉  江洪涛  许维源  马金娣
作者单位:1. 信息产业部电子第四十研究所,
2. 中国科学院电子学研究所,
摘    要:
混合集成电路外壳镀镍按照GJB548A要求,镀层要经受24h以上盐雾试验,引线要通过抗疲劳强度试验,直流镀镍层的引线随厚度的增加,抗疲劳强度呈直线下降,多波形电流镀镍层的引线抗疲劳强度所允许的镀层厚度比直流镀层成倍增加,从而提高了外壳的抗腐蚀性能,给出了详细的实验结果。

关 键 词:集成电路外壳 多波形电流电镀 镀镍 引线 疲劳强度 镀层厚度
文章编号:1001-3849(2001)04-0005-04
修稿时间:2000-11-03

Effect of Nickel Electrodeposit Thickness Obtained from Multi-wave Current Plating on Lead Fatigue Strength
KUO Mao yu ,JIANG Hong tao ,XU Wei yuan ,MA Jin di. Effect of Nickel Electrodeposit Thickness Obtained from Multi-wave Current Plating on Lead Fatigue Strength[J]. Plating & Finishing, 2001, 23(4): 5-8
Authors:KUO Mao yu   JIANG Hong tao   XU Wei yuan   MA Jin di
Affiliation:KUO Mao yu 1,JIANG Hong tao 1,XU Wei yuan 2,MA Jin di 2
Abstract:
Nickel coating on hybrid integrated circuit packages, according to the requirement specified in The Standards of Test Methods and Procedures for Microelectronics GJB548A, must with stand 24 h neutral salt spray test, and the nickel plated leads must pass through the fatigue strength test. The lead fatigue strength is decreased linearly with the increase in nickel coating thickness. For a given limited lead fatigue strength value, the permited thickness of nickel coating of multiwave current plating is about one time larger than that of direct current plating, and the corrosion resistence is greatly improved. Detailed experimental results are given in this paper.
Keywords:hybrid integrated circuit package  multiwave current plating  plating nickel  lead fatigue strength
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号