发明名称 CONVERSION COATING COMPOSITION FOR FLEXIBLE PRINT CIRCUIT BOARD AND SURFACE TREATING METHOD USING THE SAME
摘要 <p>The present invention relates to a chemical conversion treatment composition for a printed circuit board and a chemical conversion treatment method using the same. The chemical conversion treatment composition includes 1-20 wt% of sulfuric acid, 1.0-10 wt% of hydrogen peroxide, 0.1-20 wt% of azo compound, 0.01-1 wt% of chloride compound, 0.1- 5 wt% of wetting agent, and extra water. The chemical conversion treatment composition for a printed circuit board can solve the existing problem of an acidic chemical conversion treatment process and form reddish brown organic chemical conversion treatment excellent in adhesion strength and acid resistance by including an azo compound.</p>
申请公布号 KR101494618(B1) 申请公布日期 2015.02.23
申请号 KR20130121883 申请日期 2013.10.14
申请人 发明人
分类号 C23C22/05;C23C22/16;H05K3/00 主分类号 C23C22/05
代理机构 代理人
主权项
地址