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QFN元器件底部间隙的清洁方法

时间:2019-08-07浏览:517次

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  YOUYUYINSHUADIANLUBAN(PCB)SHANGZUICHANGJIANDEQFNYUANQIJIANDEDIBUJIANXIFEICHANGWEIXIAO,YUEWEI0.5-1mil,YINCILIYONGQINGJIEJIQUQINGCHUJIANXIZHONGCANLIUDEZHUHANJIHEHANXICANLIUWUFEICHANGKUNNAN,YINWEIQINGXIJIYUWURANWUHUOCANLIUWUMEIYOUCHONGYUDEJIECHUSHIJIAN。RUHEJINXINGSHIDANGDEQINGJIE,YINGDANGCONGYINGXIANGQINGJIEGONGYIYOUXIAOXINGDESANGEFANGMIANJINXINGKAOLIANG:HESHIDEQINGJIEJI、ZUGOUDEJIECHUSHIJIAN、ZUIQIADANGQINGXIJILIUDONGFANGSHI。

平特一肖大公开兔费平特一肖论坛   HENDUOKEHUZAISHIYONGRONGJIXINGQIWUGUANQINGJIEJIQINGCHUQFNQIJIANDIBUDERMAZHANXINGZHUHANJISHIYUDAOLEYANZHONGKUNRAO,TEKERUITechspraySHIYANSHIWEIYIDONGSHEBEIZHIZAOSHANGPINGGULESUOMIANLINDEZHEIYITIAOZHAN。HAOWUYIWEN,TechSprayG3ZHUHANJIQINGJIEJI(P/N:1631)JUBEILEGEZHONGLEIXINGZHUHANJIQINGJIEDELIANGHAOGONGXIAO,DANWOMENXIWANGPINGGUBUTONGDEJIQIAO,LAIZHAOXUNCHUPCBYUANQIJIANXIABUWEIXIAOJIANXIQINGXIDEZUIJIAFANGFA。

  TONGGUOJINGTAIQINGXISHIYAN,LAIYANZHENGG3ZHUHANJIQINGJIEJIDEQINGXIXIAOGUO;ZAISHIWENTIAOJIANXIABUSHIYONGJIAOBANZHIJIEJINPAO30MIAO,WURANWUJIZHUANBIANWEIHUOXINGZHUANGTAI。ZAIZHEIYANGDETIAOJIANXIA,RUGUOZHUHANJICANLIUWUBEIWANQUANFENJIEBINGCONGZHUBANHUOJICAISHANGZHONGBOLI,QINGCHUWURANWUDEMUDEJIUDADAOLE。

  G3XILIEZHUHANJIQINGJIEJIDEBIAOMIANZHANGLICHUYUJIAODIDESHUIPING,KEYIQUEBAONENGGOUZAIDIJIANXIDEYUANQIJIANDIBULIUDONG。YOUYUPENGUANCHANPINPENSHECHUDEGAOYAPENWUNENGGOUYUWURANWUCHANSHENGJIECHUHEJIAOBAN,ZHEISHITONGGUOXIATUSUOSHIDESANGEBIANLIANG,ZHAOXUNDAOYIZUZUIJIADEJIAODU、PENWUWEIZHIHEPENWUCHIXUSHIJIAN。ZHEIYESHIZAITEKERUITechspraySHIYANSHIWANCHENGDESHIYANTIAOJIANFENXI。

  QFN元器件底部手工清洗方案

平特一肖大公开兔费平特一肖论坛   TONGGUOGAIBIANQINGXIGUOCHENGZHONGBUTONGDETIAOJIAN,LAIYANZHENGQINGXIGUOCHENGDEZUIGUANJIANYAOSU。

  •PCBBANDEQINGXIEJIAODU(TU2ZHONGDEA)GUDINGZAI30°ZUOYOU

平特一肖大公开兔费平特一肖论坛   •ZUIZHONGDECHONGXITIAOJIANSHIGUDINGDE,DANCHIXUSHIJIANZAI3sHE5sSHIFENBIEJINXINGLECESHI

  •CONGQFNQIJIANZHISIMIANJINXINGPENSHE,QIZHONGXIANGLINDELIANGMIANPENTUSHIJIANSHAOXUYANZHANG

平特一肖大公开兔费平特一肖论坛   •PENSHEQINGXIDESHIJIANFENSANGEJINXINGBIJIAO:3s、5s、10s

平特一肖大公开兔费平特一肖论坛   •PENGUANDEYANZHANGGUANDEPENSHEJIAODU(TU2ZHONGDEB)FENBIESHEDINGWEI10°HE30°

  •MANMANDEBAIDONGYANZHANGPENGUANHEJUZHONGPENSHE

  •ANZHAOYOUHEMEIYOUYUXILIANGGEFANGANJINXINGJIEGUOBIJIAO

平特一肖大公开兔费平特一肖论坛   SHIYONGBIAOZHUNTechLabCESHIYONGBAN(RUTU1)SHI,ZHITIANCHONGLE2GEQFNCHACAO(RUTU1)。WEIMONIKEHUSHIJIDEQFNGONGJIAN,WOMENJIANGPCBBANDEKONGXIZHEDANGZHU,LIYONGITWKesterFL250DGAOTIJINXINGMOYA,DIBUTIANJIAAlphaR100YETAIZHUHANJI,HUILIUTIAOJIANSHI450°CDEREFENGHUANJINGXIASHIXIANDE。TEKERUITechsprayDEG3ZHUHANJIQINGJIE(1631-16S)SHIBENCISHIYANDEQINGJIEJI,ANZHAOSHANGSHUFANGANWANCHENGHOU,WEILEZHUNBEIPINGGUQFNQIJIANDIBUDEJIEJINGZHUANGKUANG,QIANGZHIDIJIANGQFNJINXINGLECHAICHU。

640.webp (2).jpg
图1 测试用PCB板

  测试结果

  ZUIJIADEQINGXIXIAOGUO(RUTUSUOSHI)。•PCBBANDEQINGXIEJIAODU(A):30°•PENGUANDEYANZHANGGUANDEPENSHEJIAODU(B):10°•PENSHEQINGXIDESHIJIAN:ZAIYICEPENSHE10s,LIJIZHUANDAOXIANGLINCEPENSHE10s•ZAIPENSHE(LIN)GUOCHENGZHONGMANMANDEBAIDONGYANZHANGPENGUANDUIQINGJIEXIAOGUOKANQILAIGAISHANZUOYONG•ZUIZHONGCHONGXI5s---QUEBAOZHENGGEQFNQIJIANHEZHOUBIANDOUBEIPENLIN,ZHEIYOUZHUYUQINGCHUBIAOMIANDEQUANBUWURANWUCANLIU

  SHANGSHUDEQINGJIEGONGYIGUOCHENG,NENGGOUJIANGJUEDABUFENDEWURANWUQINGJIEGANJING(RUTU4-6SUOSHI),RUGUOZAIEWAIZENGJIAYIXIEPENSHE(PENLIN)SHIJIAN,JIKEJIANGQFNQIJIANDEDIBUWANQUANQINGJIEGANJING。

QQ截图20190807111959.jpg
图2 喷罐喷射(喷淋)示意图


平特一肖大公开兔费平特一肖论坛   WENZHANGLAIYUANYUITWTEKERUIKENCHUANGLI

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