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三大原因告诉你PCB板为什么发生甩铜情况

 

PCBDETONGXIANDIAOLUO(YEBIANSHICHANGSHUODESHUAITONG),GEPCBPINPAIDOUHUITUISHUOSHICENGYABANDEWENTI,YAOQIUQICHUCHANGONGCHANGCHENGDANGBULIANGSUNSHI。GENJUDUONIANDEKEHUTOUSUCHULIJINGYAN,WEIYARENWEIPCBSHUAITONGCHANGJIANDEYUANYINYOUYIXIAJIZHONG:

 

一、PCB厂制程要素:

 

1、TONGBOSHIKEGUODU。

SHICHANGSHANGYUNYONGDEDIANJIETONGBOYIBANWEIDANMIANDUXIN(SUCHENGHUIHUABO)JIDANMIANDUTONG(SUCHENGHONGHUABO),CHANGJIANDESHUAITONGYIBANWEI70umYISHANGDEDUXINTONGBO,HONGHUABOJI18umYIXIAHUIHUABOGENBENDOUWEICHENGXIANGUOPILIANGXINGDESHUAITONGZHUANGKUANG。XIANLUGUIHUAHAOGUOSHIKEXIANDESHIFEN,RUOTONGBOBIAOZHUNBIANGENGERSHIKECANSHUWEIBIAN,ZHEIHUILINGTONGBOZAISHIKEYEZHONGDETINGLIUSHIJIANGUOZHANG。

经纬平台YINXINBENLAIBIANSHISHENGDONGJINSHULEI,DANGPCBSHANGDETONGXIANZHANGQIZAISHIKEYEZHONGJINPAOSHI,HUIDAOZHIXIANLUCESHIGUODU,XINGCHENGMOUXIEXIXIANLUBEICHENXINCENGBEIWANQUANFANYINGDIAOERYUJICAITUOLI,JITONGXIANDIAOLUO。

经纬平台HAIYOUYIZHONGZHUANGKUANGBIANSHIPCBSHIKECANSHUMEIYOUWENTI,DANSHIKEHOUSHUIXIJIHONGGANBULIANG,XINGCHENGTONGXIANYECHUYUPCBBIANMIANCANLIUDESHIKEYEBAOWEIZHONG,ZHANGQIWEICHULI,YEHUICHANSHENGTONGXIANCESHIGUODUERSHUAITONG。

ZHEIZHONGZHUANGKUANGYIBANHUIJIBIAOXIANZAIXIXIANLUSHANG,HUOQIHOUSHIRUNDESHIQI,ZHENGGEPCBSHANGDOUHUICHENGXIANXIANGSIBULIANG,BOKAITONGXIANKANQIYUJICENGJIECHUMIAN(JISUOWEIDECUHUAMIAN)SECAIYIJINGGAIBIAN,YUZHENGCHANGTONGBOSECAIBUYIYANG,KANJIANDESHIDICENGYUANTONGSECAI,CUXIANLUCHUTONGBOBOLIQIANGDUYEZHENGCHANG。

 

2、PCBCHUCHANLIUCHENGZHONGJUBUFAZUOPENGZHUANG,TONGXIANSHOUJIXIEWAILIERYUJICAITUOLI。

经纬平台CIBULIANGBIAOXIANDINGWEICHENGXIANWENTI,DIAOLUOTONGXIANHUIYOUMINGXIANDENIUQU,HUOXIANGTONGYIFANGXIANGDEHUAHENHUOPENGJIHEN。BOKAIBULIANGCHUTONGXIANKANTONGBOMAOMIAN,NENGGOUKANJIANTONGBOMAOMIANSECAIZHENGCHANG,BUHUIYOUCESHIBULIANG,TONGBOBOLIQIANGDUZHENGCHANG。

 

3、PCBXIANLUGUIHUABUHELI。

经纬平台YONGHOUTONGBOGUIHUAGUOXIDEXIANLUYEHUIXINGCHENGXIANLUSHIKEGUODUERSHUAITONG。

 

二、层压板制程原因:

 

ZHENGCHANGZHUANGKUANGXIA,CENGYABANZHIYAOREYAGAOWENDUANCHAOYUE30FENZHONGHOU,TONGBOYUBANGUHUAPIANJIUGENBENJIEHEWANQUANLE,GUYAHEYIBANDOUBUHUIYINGXIANGDAOCENGYABANZHONGTONGBOYUJICAIDEJIEHELI。DANZAICENGYABANDIEPEI、DUIDUODEGUOCHENGZHONG,RUOPPWURANHUOTONGBOMAOMIANSUNHAI,YEHUIDAOZHICENGYAHOUTONGBOYUJICAIDEJIEHELIQUEFA,XINGCHENGDINGWEIPIANCHA(JINZHENDUIYUDABANERYAN)HUOLINGXINGDETONGXIANDIAOLUO,DANCETUOXIANFUJINTONGBOBOLIQIANGDUYEBUHUIYOUFANCHANG。

 

三、层压板原材料原因:

 

1、SHANGMIANYOUSHUODAOPUTONGDIANJIETONGBODOUSHIMAOBODUXINHUODUTONGCHULIGUODECHANPIN,RUOMAOBOCHUCHANSHIFENGZHIJIUFANCHANG,HUODUXIN/DUTONGSHI,DUCENGJINGZHIBULIANG,XINGCHENGTONGBOZISHENDEBOLIQIANGDUJIUBUGOU,GAIBULIANGBOXIANZHIBANLIAOZHICHENGPCBHOUZAIDIANZICHANGCHAJIANSHI,TONGXIANSHOUWAILICHONGJIJIUHUIFAZUODIAOLUO。CILEISHUAITONGBULIANGBOKAITONGXIANKANTONGBOMAOMIAN(JIYUJICAIJIECHUMIAN)BUHUIYOUMINGXIANDECESHI,DANZHENGMIANTONGBODEBOLIQIANGDUHUIHENCHA。

 

2、TONGBOYUSHUZHIDESHIYINGXINGBULIANG:XIANZAIYUNYONGDEMOUXIETEBIEGONGNENGDECENGYABAN,RUHTGBANLIAO,YINSHUZHIXITONGBUYIYANG,SUOYUNYONGGUHUAJIYIBANSHIPNSHUZHI,SHUZHIFENZILIANJIEGOUJIANDAN,GUHUASHIJIAOLIANCHENGDUJIAODI,SHIBIYAOYUNYONGTEBIEFENGZHIDETONGBOYUQIPIPEI。DANGCHUCHANCENGYABANSHIYUNYONGDETONGBOYUGAISHUZHIXITONGBUPIPEI,XINGCHENGBANLIAOFUJINSHUBOBOLIQIANGDUBUGOU,CHAJIANSHIYEHUICHENGXIANTONGXIANDIAOLUOBULIANG。