Design.Build.Ship.Service.錫膏印刷培訓(xùn)DocumentTitle:LeanHandBookDocumentNo:GBE-KPO-2-033-00Doc.Revision :02DocumentDate:March26,2008BusinessExcellence2023/4/302TechnologyScreenprinter/絲網(wǎng)印刷機(jī)SolderPastePrinting絲網(wǎng)印刷絲印機(jī)Chip貼片機(jī)多功能貼片機(jī)多功能貼片機(jī)Chip貼片機(jī)回流爐2023/4/303TechnologyDescribingtheStencilPrintingProcess

絲網(wǎng)印刷工藝概述2023/4/304Technology15mmminDia.Paste/最小直徑15mm的錫膏體Zero‘PrintGap’零印刷間隙Metalsheet/金屬平板Openaperture/開孔BasicStencilPrintingProcess/基本絲網(wǎng)印刷工藝2023/4/305TechnologyControlled‘PrintSpeed’控制印刷速度Even‘SqueegeePressure’以及刮刀壓力BasicStencilPrintingProcess,cont./基本絲網(wǎng)印刷工藝（續(xù)）PasteRolling錫膏滾動(dòng)2023/4/306TechnologyBoardisloweredundercontrolled‘SeparationSpeed’在“分離速度”控制下，板被分離下來BasicStencilPrintingProcess,cont./基本絲網(wǎng)印刷工藝（續(xù)）30-Apr-237TechnologySTENCIL鋼網(wǎng)30-Apr-238TechnologyEffectofstencil絲網(wǎng)的影響效果Withagoodstencil優(yōu)良的絲網(wǎng)Excellentresults極好的結(jié)果Fewfailures很少的故障Predictableyields可預(yù)知的合格率Withabadstencil不良的絲網(wǎng)Lotsofstencilwiping需要大量的擦拭Lotsofbridgesandinsufficientdisposition產(chǎn)生許多的橋連和少錫StencilDesignGuideline:IPC7525絲網(wǎng)設(shè)計(jì)指導(dǎo)文件：IPC752530-Apr-239TechnologyStencilsConsiderations絲網(wǎng)的關(guān)鍵因素StencilThickness絲網(wǎng)的厚度StencilMaterial絲網(wǎng)的材質(zhì)Steppedoruniformedthicknessstencil階梯式的或者同一厚度的絲網(wǎng)StencilMaterialCoefficientofFriction絲網(wǎng)材質(zhì)的摩擦系數(shù)StencilSurfaceRoughness絲網(wǎng)的表面粗糙度StencilHardness/TensileStrength絲網(wǎng)的硬度、抗拉強(qiáng)度FramingTension邊框的張力MountingMaterial原料的裝配PartialorFull部分的和全部的ApertureSize孔徑尺寸ApertureShape&Wall開口外形和內(nèi)側(cè)的形狀A(yù)pertureArrangement開口排列ApertureAspectRatio開口的縱橫比例AreaRatio面積比ApertureTolerance開口大小的公差A(yù)pertureGasketing開口的涂層ApertureLocationTolerance開口的位置公差ThicknessTolerance厚度公差30-Apr-2310TechnologyStencilType絲網(wǎng)的類型FullStencil全平面絲網(wǎng)PartialStencil(stencilwithmeshborder)

局部的絲網(wǎng)Polyestermesh(tension22-30Newtonspersquarecm)聚酯型網(wǎng)孔（表面張力在22-30N/cm2之間)Stainlesssteelmesh(tension30-40Newtonpersquarecm)

不銹鋼網(wǎng)孔（表面張力在30-40N/cm2之間）Framelessstencil無框的絲網(wǎng)MicroMountfromDEKDEK公司的微小貼裝絲網(wǎng)TECFOILfromTECFOILTECFOIL公司的TECFOIL技術(shù)SMartframefromSMTSMT小巧的外框30-Apr-2311TechnologyStencilFabricationMethods絲網(wǎng)的制作方法Chemicaletch化學(xué)腐蝕Singlesideetch單個(gè)側(cè)面腐蝕Dualsideetch雙行側(cè)面腐蝕Etchandelectro-polish蝕刻和電拋光Lasercut激光切割Straightlaser直接光刻Laserandpolish光刻并拋光Electroform電鑄成型

Stencilsaremanufacturedbythreemainmethods:制造絲網(wǎng)的主要三種方法30-Apr-2312TechnologyWallcharacteristic

ChemicalEtch化學(xué)腐蝕孔內(nèi)壁的特性30-Apr-2313TechnologyCleaningofstencilWheneverprintingiscompleted,CleanthestencilwithlowlintpapersoakedinIPA.任何時(shí)候,只要印刷結(jié)束，就要用浸有IPA的無塵紙擦凈絲網(wǎng)．Usebrushtoclearpasteinstencilapertureifnecessary.如果需要，用刷子清理絲網(wǎng)開孔．30-Apr-2314TechnologyStencilHandling絲網(wǎng)的使用Handlethestencilwithextremecare.Anydents,crackordamageswillresultinpoorprintquality.移動(dòng)絲網(wǎng)時(shí)，要萬分小心．任何破邊，破碎，或損壞都將導(dǎo)致糟糕的印刷質(zhì)量．Alwaysholdthestencilbythealuminumframeanddonotdropanyobjectonthestencilorfoil.保持絲網(wǎng)在鋁框中永遠(yuǎn)處于繃緊狀態(tài)，并且嚴(yán)禁把東西放在絲網(wǎng)上．Donotsetstencildownonsurfacethatwilldamagethefoilsurface.不要把絲網(wǎng)底部平放其它物體上，那樣會(huì)損壞金屬的表面．2023/4/3015TechnologyThePerfectPrint/完美的印刷Cleanedges/清潔的邊緣Flatontop/頂部平坦Height=StencilThickness高度=鋼網(wǎng)厚度GoodAlignment/很好地對位NoFluxBleed...無助焊劑溢出2023/4/3016TechnologyPastePrintDefect:Bridging/錫膏印刷缺陷：橋聯(lián)2023/4/3017TechnologyPastePrintDefect:ExcessPrintHeight/錫膏印刷缺陷：高度偏高2023/4/3018TechnologyPastePrintDefect:Scooping/錫膏印刷缺陷：塌陷2023/4/3019TechnologyIncompletePrint/不完全印刷（少錫）2023/4/3020TechnologyPastePrintDefect:Misalignment/錫膏印刷缺陷：偏位202催3/4跳/2621Tech證nolo途gyTail撤ing/錫膏拉尖Acc嶼ept披abl槽e/可接受(So刑lde補(bǔ)rs蓬mea作ro池rs滿lum膝p<巡壽10%寬)錫量減休少<10%Rej涼ect化/拒收(Sol脫der瓜smea換ror廁slu廳mp>廉10%)錫量減匠少>10%Sold擊erP垃aste田Pri唱ntQ居uali切ty/錫膏印婚刷質(zhì)量202繡3/4仗/2622Tech每nolo條gyPas吸te稅Clo刊ggi替ng錫膏堵可塞Acc盟ept嬸abl始e/可接受(pas蠟ted共epos施it>浴90%)焊盤錫縱量超過90%Reje焰ct/拒收(pa棵ste芳de牌pos幣it絲式<90與%)焊盤錫寫量超過90%Sol童der濾Pa含ste錯(cuò)Pr值int駝Qu僚ali晃ty肺/錫膏印荒刷質(zhì)量202疾3/4照/2623Tech敢nolo朝gySmea礎(chǔ)ring組and扭Slu略mpin套g/錫膏塌陷Acce腸ptab巧le/可接受(Sol倒der票smea銹ror罩slu椅mp<卵10%)塌陷小于10%Reje肥ct/拒收(Sol蒜der干smea命ror另slu盡mp>按10%)塌陷大日于10%Sold鼠erP緊aste普Pri仰ntQ奏uali壺ty202凍3/4途/2624Tech螞nolo餡gyMaj楊or弄con酷t(yī)ri孕but羽or縮慧to斑def酸ect穴s/缺陷的主謊要分布Sour拍ce:柄MPM’拴sA抵user歡’sg捐uide爸to鄉(xiāng)豐more骨Pre骨cise禮SMT齊pri末ntin悉g202澆3/4稼/2625Tec框hno宴log桶yHard撿ware賊/硬件Soft肆ware帝/軟件Envi錘ronm桌ent/環(huán)境Sque弄egee葉s/刮刀Pri銜nt鍛Spe院ed/印刷速度Tem款per槳atu論re/溫度Pas浪te/錫膏Humi堆dity膨/濕度Ste蜓nci占l/鋼網(wǎng)Pre橫ssu扯re/壓力Tool僑ing/防surp哀ort番pinPri障nt慨Gap蠻/印刷間隙Boar袖d/印刷線惕路板Sepa活rati痛onS猜peed無/分離速度Fac蘿tor成sA捆ffe盯cti冬ng吵the仇Pr亞int西/影響印刷紋的因素202滾3/4旬/2626Tec看hno縣log殼ySqu擇eeg臭ee/刮刀202木3/4猶/2627Tec脖hno誓log杠ySque偉egee孟Typ靜e/刮刀類翻型Dia脅mon彎de羨dge闊Tr狐ail歡ing畏ed佛ge睛‘D煩’c瀉ut202轟3/4壇/2628Tech差nolo趴gySqu晌eeg姓ee支Mat端eri共al/刮刀材賽料Pol沾yur掃eth疫ane沾/聚亞安酯Com抄pos蛛ite叮/合成物2p毯art畏po擺lyu彩ret題han敢eEpo蛾xy/環(huán)氧樹執(zhí)脂Meta對l/金屬Pla征in委Ste尺el/平鋼P(yáng)ol愧ish慚ed/被拋光Roll園edLub佛ric谷ate越ds要urf雷aceTefl址onPerm杜alex202復(fù)3/4貿(mào)/2629Tec益hno獲log伏ySque低egee我/刮刀Har耀dne獸ss/硬度:30者to叮90d珠urom塘eter棉(Sh貞ore秧A)w擋ith宣60t獵o90驗(yàn)dur列omet額er男most選use坑d,m著etal涂.Atta惜ckA吼ngle章/接觸角度:45字to失75d閣egre千esPres潮sure飄/壓力Para芳llel莫ism/平行度2023趁/4/2判630Tech托nolo彈gySca刺np暗ic脂of包rub票ber混an銜dm僻eta扎ls菠que他ege倒e,袍pa伶ste嫌,c預(yù)ybe嘗rop偶tic邀s橡膠和耳金屬刮丹刀，錫麻膏，影吐像Sca耽ven患gin概g2023惹/4/2耽631Tec歉hno次log矮yPrin未tPa濫rame押ters竿/印刷參數(shù)Pri克nt獎(jiǎng)Spe鉗ed/印刷速度Sque顧egee蜜Pre笑ssur掠e/刮刀壓力Sep頭ara私tio觸nS包pee偏d/分離速度Pri耗nt既Gap蓄/印刷間隙Und強(qiáng)er孩Scr體een混Cl拉ean侮Ra浴te/鋼網(wǎng)底欺板清洗只頻率Pas異te百Dis秤pen筍se/加錫膏Env魂iro底nme是nt/環(huán)境2023站/4/2截632Tec聯(lián)hno鐘log咬y