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乐泰loctite LF 620M胶水应用
乐泰loctite LF 620M胶水应用:
本文来自:汉高乐泰胶水(中国)有限公司 Henkel Loctite官网 www.loctite.net/c1246.html
TechnicalDataSheet
LF620M
August-2011PRODUCTDESCRIPTION SolderPowder:
Carefulcontrol oftheatomisationprocessforproductionofLF620Mprovides thefollowingproductcharacteristics: solder powders for LF620M solder pastesensuresthattheTechnology Solderpaste IsPold/erSTD-006&EN29453requirementsforsphericity,sizepowder is produced toa quality level that exceedsApplication Pb-freesoldering distribution, impurities and oxide levels. Minimum orderLF620Misahalide-free,noclean,lowvoidingPb-freesolder requirementsmayapplytocertainalloysandpowdersizes,forpaste,whichhasexcellenthumidityresistanceandabroad availabilitycontactyourlocaltechnicalservicehelpdesk.processwindow bothfor printingandreflow.LF620Mhas
beenformulatedtogivelowvoidinginBGAjoints,ahightack DIRECTIONSFORUSE
force to resist component movement during high speed Printing:
placement, long printer abandon times and excellent 1. LF620Misavailableforstencil printingdownto0.4mmsolderabilityover awiderangeofreflowprofilesinairand (0.016")pitchCSPdevices,withtype4(DAP)powder.nitrogenandacrossawiderangeofsurfacefinishesincluding 2. Printingatspeedsbetween70mm/s(0.1"/s) and130mm/sNi/Au,ImmersionSn,ImmersionAgandOSPCopper. (6"/s)canbeachievedusinglasercut,electropolished orFEATURESANDBENEFITS electroformedstencilsandmetalsqueegees(preferably● Excellentprintprocesscapabilityfor0.4mmpitchCSP 60°).
● Longabandontimecapability(>1 houron0.4 mmCSP) 3. Acceptable first prints have beenachieved at 0.4mm● Allowsfastprintspeedwithlowprintpressure (0.016") pitchafter printer downtimesof≥60minutes● Humidityresistance-excellentcoalescenceafter8 hours withoutrequiringakneadcycle.
exposureto27°C/80%RH Reflow:
● Colorlessresiduesforeasypost-reflowinspection ● LF620M isnotparticularlysensitivetoreflowprofiletype.● Verylowvoiding ● Thereisnosinglereflowprofilewhichissuitableforall● Halidefreefluxclassification:ROL0toANSI/J-STD-004. processes and applications, but the following graphsTYPICALPROPERTIES showprofileexamplesthathavegivengoodresultsinBasedontype4powder. practice.
SolderPasteTypicalProperties Profile1:
Alloys 97SC
PowderParticleSize,µm 38-20
MulticorePowderSizeCoding DAP
IPCEquivalent Type4
MetalLoading(Weight%) 88.7
Slump,J-STD-005,mm IPCA21Pattern
RT,15minutes
0.33x2.03mmpads 0.06
150°C,15minutes
0.33x2.03mmpads 0.2
0.63x2.03mmpads 0.33
BrookfieldViscosityTFspindle,25°C,5rpmafter626,000 Profile2:
2minutes,mPa∙s
ThixotropicIndex(Ti),25°C 0.56
(Ti=log(viscosity@1.8s-1/viscosity@18s-1)
MalcomRheology,10rpm,25°C, Rate6s-1 1,220
Initialtackforce,gF 2.4
Usefulopentime,hours >24
TDSLF620M, August-2011Cleaning: GENERALINFORMATION
1. LF6l2f0tMonsotldeerPpastiensaraenno-cleliacntaionndsapresdteassignedbltyo, FoartesraifelShafnedtlingaianfSormeeattionSon)t.hisproduct,consultthe
sincetheydonotposeahazardtolongtermreliability.
2. However, should there be a specific requirement for NotforProductSpecifications
residueremoval,thismaybeachievedusingconventional The technical information contained herein is intended for
cleaningprocessesbasedonsolventssuchas MCF800 referenceonly.PleasecontactHenkelTechnologiesTechnical
orsuitablesaponifyingagents. Serviceforassistanceandrecommendationsonspecifications3. For stencil cleaning and cleaning board misprints, forthisproduct.
SC-01/02Solventcleanerisrecommended.
RELIABILITYPROPERTIES Conversions
(°VC/x1.8)2+5.342==°/Fmil
SolderPasteMedium: mm/25.4=inches
LF620Mmediumcontainsastableresinsystem andslow µm/25.4=mil
evaporatingsolvents.Theformulation hasbeentestedto the Nx0.225=lb
requirementsoftheANSI/J-STD-004foratypeROL0 N/mmx5.71=lb/in
classification specifications. N/mm²x145=psi
MPax145=psi
Test Specification Results N·m x 8.851= lb·in
CopperPlateCorrosion ANSI/J-STD-004 Pass N·mx0.738=lb·ft
CopperMirrorCorrosion ANSI/J-STD-004 Pass N·mm x0.142=oz·in
Chlorides&Bromides ANSI/J-STD-004 Pass mPa·s=cP
SurfiastcaenInsu(laitihoonut ANSI/J-STD-004 Pass Note
cleaning) Pass
Thedatacontainedhereinarefurnishedfor informationonlyFluxActivityClassification ANSI/J-STD-004 ROL0 and are believed to be reliable. We cannot assume(withoutcleaning) responsibilityfortheresultsobtainedby othersover whose
methodswehavenocontrol.Itistheuser'sresponsibilityto
determinesuitabilityfortheuser'spurposeofanyproduction
methodsmentionedhereinandtoadoptsuchprecautionsas
maybeadvisablefortheprotectionofpropertyandofpersonsPACKAGING againstanyhazardsthatmaybeinvolvedinthehandlingandContainers: LF620Missuppliedin: usethereof.Inlightoftheforegoing,HenkelCorporationand● 500gplasticjarswithanairsealinsert itsaffiliates(“Henkel”)specificallydisclaimsallwarranties● 600gSemcocartridges expressed or implied, including warranties of
fmroerchsaanltabirlitysorfitneesnskfolrparopdaurtitcu.larepurplosse,caifriisinllgOtherpackagingtypesmaybeavailableonrequest;please disclaims any liability for consequential or incidentalcontactyourlocaltechnicalservicehelpdeskforassistance. damagesofanykind,includinglostprofits.ThediscussionStorage: hereinof various processes or compositions is not tobeIt is recommended to store LF620M at 0 to 10°C. (NB interpreted as representation that they are free fromcartridgesshouldbestoredtipdowntopreventtheformationof dominationofpatentsownedbyothersorasalicenseunderairpockets). Thepasteshouldberemovedfromcoldstoragea any Henkel patents that may cover such processes orminimumof8hoursbeforeuse.Donotuseforcedheating compositions.Werecommendthateachprospectiveusertestmethodstobringsolderpasteuptotemperature.LF620Mhas hisproposedapplicationbeforerepetitiveuse,usingthisdatabeenformulated to minimize flux separationon storagebut asnitadguidte.sTohrisforeignpatentsorpatentapplications.productmaybecoveredbyoneor moreshouldthisoccur,gentlestirringfor15secondswillreturnthe
product tothe correct rheological performance. To prevent
contaminationofunusedproduct,donotreturnanymaterialto Trademarkusage
itsoriginalcontainer.Forfurtherspecificshelflifeinformation, All trademarks in this document are trademarks and/orcontactyourlocalTechnicalServiceCenter. registeredtrademarksofHenkelintheUSandelsewhere.DATARANGES Reference0.1
Thedatacontainedhereinmaybereportedasatypicalvalue
anrdif/iordaornangpe. riValuebsaairse.basedonactualtestdataandare
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