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常见问题

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                  有铅焊膏焊接无铅BGA焊点存在哪些问题?

                  时间:2017-10-19 10:35:26来源:本站浏览次数:2807

                      BGA混装工艺一般指:“有铅焊料+部分无铅元器件”或“无铅焊料+部分有铅元器件” 以焊接所用的焊料为基准,“有铅焊料+部分无铅元器件”实际是一个“有铅工艺”...

                     BGAHUNZHUANGGONGYIYIBANZHI:“YOUQIANHANLIAO+BUFENWUQIANYUANQIJIAN”HUO“WUQIANHANLIAO+BUFENYOUQIANYUANQIJIAN”

                  中顺qka棋牌游戏   YIHANJIESUOYONGDEHANLIAOWEIJIZHUN,“YOUQIANHANLIAO+BUFENWUQIANYUANQIJIAN”SHIJISHIYIGE“YOUQIANGONGYI”XIANGHOUJIANRONGDEWENTI;ER“WUQIANHANLIAO+BUFENYOUQIANYUANQIJIAN”SHIJISHANGSHIYIGEWUQIANGONGYIXIANGQIANJIANRONGDEWENTI。

                    ZHEILISHIYONGDAYINHAODE“YOUQIANGONGYI”,SHIYINWEIYOUQIANHANLIAOHANWUQIANYUANQIJIANSHIJIYIJINGBUSHICHUANTONGYIYISHANGDEYOUQIANGONGYILE。MEIYOUTIPCBDEYOUQIANWUQIANWENTI,DANBINGBUSHISHUOMEIYOUWENTI,RUTU5-2SUOSHIDEANLI,JIUFANYINGLECUNZAIDEWENTI——YOUQIANHANGAOHANJIEWUQIANPCB(PENXIBAN)HEBGA。

                                                                           

                    CONGRoHSDEJIAODUKAN,HUNZHUANGGONGYIMEIYOUCUNZAIDEYIYI。ZHISUOYIYOUYINGYONG,ZHUYAOSHIYOUQIANGONGYIXIANGWUQIANGONGYIGUODUZHONG,QIEHUANDESHIJIANBUTONGBUZAOCHENGDE。YOUXIEGONGCHANGYIJINGCAIYONGLEWUQIANGONGYI,DANYOUXIEYUANQIJIANMAIBUDAOWUQIANDE。FANCIZHONGQINGKUANG,ZAOCHENGLEHUNZHUANGGONGYIDECHUXIAN。HUNZHUANGGONGYI,KEYIGENJUSHIYONGDEHANLIAOHEYUANQIJIANJIANDANHUAFENWEISILEI:

                   1)WUQIANHANLIAO+BUFENYOUQIANWUYINXIANHUOYOUYINXIANYUANQIJIAN

                    HANDUANHUOYINXIANDUCENGZHONGDEWEILIANGpbZAIWUQIANHANLIAOYUHANDUANJIEMIANRONGYIFASHENGPbDEPIANXIXIANXIANG。XINGCHENGSn36Pb2AgDE174-177℃DIRONGDIANCENG,DUIKEKAOXINGZAOCHENGYINGXIANG。LINGWAI,YOUQIANYUANQIJIANSHIFOUNAIGAOWENYESHIYIGEWENTI。

                   2)WUQIANHANLIAO+YOUQIANBGA/CSP

                  中顺qka棋牌游戏 YOUYUHANQIUXIANRONGHUA,FUGAIZHUHANGAO,SHIHANGAOZHONGRONGJIBURONGYIHUIFACHULAI,CHANSHENGKONGDONGQUEXIAN。

                  中顺qka棋牌游戏 3)YOUQIANHANLIAO+BUFENWUQIANWUYINXIANHUOYOUYINXIANYUANQIJIAN

                  中顺qka棋牌游戏  YOUQIANHANLIAOYUWUQIANYUANQIJIANHUNYONGSHI,KENENGFASHENGHANLIAOHEJINYUHANDUANDUCENGBUJIANRONGDEWENTI——RUSn-Bi,HANLIAOZHONGDEPbHUIYUZHIXINGCHENGSn-Pb-BiDIRONGDIAN(93℃)DESANYUANGONGJINGDIRONGDIANCENG,RONGYIYINQIHANJIEJIEMIANBOLI、KONGDONGDENGWENTI。

                  中顺qka棋牌游戏4)YOUQIANHANLIAO+WUQIANBGA/CSP

                  ZHUYAODEWENTISHIHANDIANDEPIANXI。

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