如何降低喷锡后防焊白化的现象

1、如何降低低喷锡后后防焊白白化专题成员员姓名职职称学历历组长：刘刘益利副工工程师大 学学组员：张启煌煌副副工程师师专专 科王玉琪琪现现场组长长专专 科皮贤明明现现场组长长专专 科李志清清现现场组长长专专 科1.前言言:随着客户户对PCCB的质量要求求越来越严格，相相对地在外外观上也越越来越要求求完美。所以电电路板厂厂无不在原原物料、机械设设备、制制作条件上，想尽各种方方法来改善，以满足客户需求。良好的的外观质质量，更更能取得得客户的信赖，以奠奠定后续续定单能源源源不绝。2.选题题理由:防焊焊油墨在在喷锡后产生白化化现象，虽然于功功能上不不影响，但是是在外观观上出现瑕疵，使得客客户产生疑疑虑，甚至

2、至不允收收。所以以利用DDOE的的手法找找出最佳佳生产条条件，以以降低防防焊油墨墨在喷锡锡后产生白化化现象。3.质量量问题现现况分析析:月份-37月-28月-19月010月111月212月31月白 化化不良率率0.05513(5.113%)0.04484(4.884%)0.03324(3.224%)0.03312(3.112%)0.01171(1.771%)0.00025(0.225%)(0指指开始作专题题之月份份)4.制程程说明:防焊前处处理印刷预烤曝光显影后烘烤烤喷锡前处理IRR预热浸Fluux喷喷锡浮床喷锡后清清洗出料检视视因本厂厂出现防焊白白化以CCurttainn Cooatiing

3、比比例较高，因因此选择择以Currtaiin CCoattingg印刷方方式找出出白化成成因。5.特性性要因分分析:6.第一一阶段实验配置置及解析析:6.1实实验因子子及水平平对照表:6.2配配置方式式及交互互作用:6.2.1采L16215方式式配置6.2.2点线线图:6.3实实验解析析(1)白白化6.3.1防焊焊特性(1)白化化实验配置置及数据:DATAAROW/COLL1234567891011121314153111111111111111142111111122222222031112222111122228411122222222111110512211221122112296122

4、1122221122110712222111122221108122221122111122292121212121212121102121212212121218112122121121221217122122121212112125132211221122112216142211221211221121152212112122121120162212112211212216.3.2防焊焊特性(1)白化化实验平均均值比较较表：1A14.2553.7552B0.2554.12253.87753AB6.2553.37754.62254C16535F255.2552.7556J110.251.37

5、756.62257H0.2554.12253.87758D2.2553.62254.37759I6.2553.37754.622510G43.54.511K93.2554.75512CD2.2554.37753.622513JK6.2554.6.253.377514HI44.53.515FG14.2553.7556.3.3防焊焊特性(1)白化化变异数分析:ANOVVA：在在合并后后J110.251110.2538.55875555.335711*F251258.75511.441388*C161165.66.7774666*K9193.1553.1666422AB6.25516.2552.18

6、8751.7118899I6.25516.2552.188751.7448899A1110.3550.9557299B0.25510.2550.088751.3443888e2072.8557144217.448899St=194t=82.5511006.3.4防焊焊特性(1)白化化贡献率分分析:J(板温温)E(曝光光能量)C(预烤烤温度)K(水洗洗温度)ABI(后烤烤温度)A(下墨墨量)B(油墨墨黏度)E(误差差值)贡献率55.336%11.441%6.777%3.177%1.755%1.755%0.966%1.344%17.449%累积贡献献率55.336%66.777%73.554%76

7、.771%78.446%80.221%81.117%82.551%100.00%6.4实实验解析析(2)压压痕6.4.1防焊焊特性(2)压痕实验配置置及数据:DATAAROW/COLL123456789101112131415211111111111111111211111112222222203111222211112222041112222222211111.551221122112211221.56122112222112211071222211112222110812222112211112289212121212121212101021212122121212131121221211

8、21221210.5122122121212112127132211221122112218.5142211221211221121152212112122121122.5162212112211212216.4.2防焊焊特性(2)压痕实验平均均值比较较表：1A74.33906620.7555.066252B0.399062253.066252.7553AB0.399062252.7553.066254C66.00156624.933750.87755F26.22656621.62254.188756J0.399062253.066252.7557H0.399062252.7553.06625

9、8D0.144062252.8112539I0.766562253.12252.6887510G1.266562253.188752.622511K0.399062252.7553.0662512CD1.899062252.688753.122513JK1.899062253.2552.5662514HI0.766562252.688753.122515FG1.899062253.2552.566256.4.3防焊焊特性(2)压痕变异数分析:A74.3390662174.3390662144.2722741.994833*C66.0015662166.0015662128.0300337.11

10、9277*F26.2265662126.226566250.993933914.662155*JK1.8990622511.899062253.666666660.7880766FG1.8990622511.899062253.666666660.7880766G1.2660622511.266562252.455454450.4225877K0.3990622510.399062250.755757750.0770977J0.3990622510.399062250.755757750.0770977e3.6009377570.511562254.1007888St=176.10993t=9

11、5.8892116.4.4防焊焊特性(2)压痕贡献率分分析:A(下墨量量)C(预烤温温度)F(曝光能能量)JKFGG(静置时时间)K(水洗温温度)J(板温)E(误差值值)贡献率41.995%37.119%14.662%0.788%0.788%0.433%0.077%0.077%4.111%累积贡献献率41.995%79.114%93.776%94.554%95.332%95.775%95.882%95.889%100.00%6.5实实验解析析(3)铜铜面氧化化6.55.1防防焊特性性(3)铜铜面氧化化实验配置置及数据:DATAAROW/COLL1234567891011121314153111

12、111111111111122111111122222222431112222111122225411122222222111125122112211221122561221122221122112712222111122221148122221122111122092121212121212120102121212212121210112122121121221210122122121212112120132211221122112210142211221211221121152212112122121120162212112211212216.5.2防焊焊特性(3)铜面氧化化实验平均均值比

13、较较表1A42.2253.37750.12252B01.7551.7553AB0.2551.87751.62254C11.525F0.2551.62251.87756J11.527H2.2551.37752.12258D11.529I2.2551.37752.122510G121.511K2.2552.12251.377512CD01.7551.75513JK0.2551.87751.622514HI121.515FG0.2551.87751.62256.5.3防焊焊特性(3)铜面氧化化变异数分析:A42.225142.225147.875576.229877*I2.25512.2557.87

14、753.5771422*H2.25512.2557.87753.5771422*K2.25512.2557.87753.5771422*C1113.51.2998700D1113.51.2998700G1113.51.2998700J1113.51.2998700e270.288571147.7882200St=55t=92.2207776.5.4防焊焊特性(3)铜面氧化化贡献率分分析:A(下墨量量)I(烘烤温温度)H(后烤时时间)K(水洗温温度)C(预烤温温度)D(预烤时时间)G(静置时时间)J(板温)E(误差项项)贡献率76.330%3.577%3.577%3.577%1.300%1.30

15、0%1.300%1.300%7.799%累积贡献献率76.330%79.887%83.444%87.001%89.000%89.661%90.991%92.221%100.00%7.CCrosss TTablle防焊白化化C2F2J11.A22、B2、C2、F2、J1、H1、I1、G1、K2为Crosss TTablle分析析后之较较佳条件，其其中遇多多特性质，有有冲突时以其贡献献率%来取舍。2.本次次实验之二二面多特特性质经经分析后后，第二二阶段实验中中取A22、B2、D1、H1、I1、G1、K2为常数项项，C、F、J三因子子为继续续做第二二阶段实验。3.本次次实验之二二个多特性性质经分析析

16、后，显显著因子无交互互作用。显著性*贡献率6.777%11.441%55.336%底片压痕痕A1C2F1显著性*贡献率41.995%37.119%14.883%铜面氧化化A2H1I1K2显著性*贡献率76.33%3.755%3.755%3.755%结论A2C2F2J1H1I1K28.第第二阶段实验配置置及解析析:8.1计计划构想想:由CCrosss TTablle结论论得知C、F、J为显著因因子,希望在在第二阶阶段少因因子多水水平中寻寻找出最最佳量产产条件8.2因因子水平平对照表:123预烤温度度CC21C22C23曝光能量量FF21F22F23喷锡后处处理前板板温JJ21J12J138.3点

17、点线图:8.4实实验常数:1.下墨墨量 55. 后后烘烤温温度2.油墨墨黏度 66. 曝曝光静置时间3.预烤时间 77.喷锡锡后水洗洗温度4.后烘烘烤时间间8.5第第二阶段实验防焊焊喷锡后白白化实验验配置及及数据:dataaROL/COLL123456789101112130122312313121230221231231231230311111111111110412222223331110521232312312310613333332221110732132133211320811113333333330911112222222220102312231123312011332121313

18、232101232133211322130132231123231312014122233311122201522313121232310162312312231123017212331231231201833213212131320191222111222333020133322211133302113331113332220223321132321213023313221321321302423121233122310253213132213321026313232132132102731321321321328.6防防焊喷锡锡后白化化实验变变异数分析:C020J020F020e0200S

19、t0t=8.7第第二阶段实验防焊焊曝光底底片压痕实验配置置及数据:dataaROL/COLL12345678910111213012231231312123022123123123123031111111111111241222222333111052123231231231161333333222111173213213321132181111333333333091111222222222110231223112331211133212131323210123213321132213213223112323131201412223331112221152231312123231016231

20、2312231123217212331231231211833213212131321191222111222333020133322211133312113331113332221223321132321213023313221321321302423121233122310253213132213321126313232132132112731321321321328.8防防焊曝光光底片压压痕实验变变异数分析:F0.6666666620.333333330.66666662.7777777J0.6666666620.333333330.66666662.7777777C0.66666666

21、20.333333330.66666662.7777777e10200.5St=12t=8.33333338.9第第二阶段实验防焊焊下铜面氧化化实验配置置及数据:dataaROL/COLL123456789101112131.1122312313121231.1221231231231231.2311111111111111.2412222223331111.1521232312312311.1613333332221111.1732132133211321.1811113333333331.2911112222222221.21023122311233121.2113321213132321

22、1.11232133211322131.21322311232313121.114122233311122211522313121232311.11623123122311231.21721233123123121.21833213212131321.11912221112223331.120133322211133312113331113332221.12233211323212131.12331322132132131.12423121233122311.12532131322133211.22631323213213211.22731321321321328.100防焊下下铜面氧化化变异

23、数分析:F0.0009622920.000481141.19926661.6115388J0.0005188520.000259920.64422003C0.0000744020.000037700.09917447.6115388e0.08807440200.0004033787.776922St=0.09962996t=12.2230779.第二二阶段实验结结论:操作条件件对照表下墨量AA1220g/m2A2220g/m2油墨黏度度BB1110seecB2115seec预烤温度度CC122.5C255预烤时间间DD1D2曝光能量量FF1550mjj/cmm2F21100mmj/ccm2曝光

24、后静静置时间间GG1G1后烘烤时时间HH1H1后烘烤温温度II1110I2110喷锡后板板温JJ1110J2115喷锡热水水洗温度度KK1110K2115由第二二阶段实验与两个多特特性质分析后后,获得最佳佳作业条条件 110.再再现性结果确认1、制程程：防焊焊2、再现性实施期间：19999/112/22720000/11/933、再现性生产记记录：生产批数数：4200批生产总批数：10008000 Woorkiing Pannel4、再现现性质量记录：19999/112/22720000/11/199无白化现象发生5、再现性普及及性确认认：是否由一一般作业业员执行行？是是否含含盖轮班之之每一班班次？是是10.11改善前前后成果果比较：改善前改善后再现性七月八月九月