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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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NZA-030-ROUND 데이터시트(PDF) 7 Page - Metcal |
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NZA-030-ROUND 데이터시트(HTML) 7 Page - Metcal |
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7 / 64 page  01 4 3 MOS 6 MOS 9 MOS 12 MOS SMARTHEAT TECHNOLOGY CERAMIC HEATER TECHNOLOGY Pb-Sn vs. SAC Process Window °C 400 350 300 250 200 150 100 50 0 Solder Melting Temperature OPTIMUM REFLOW ZONE OPTIMUM REFLOW ZONE LOW ENERGY FAIL ZONE LOW ENERGY FAIL ZONE FLUX ACTIVATION ZONE FLUX ACTIVATION ZONE EXCESSIVE ENERGY FAIL ZONE FR-4 PAD DELAMINATION ZONE Temperature stability - No Need for Calibration Nearlyallindustry standardsassociatedwith conductionsoldering performancecite temperaturestabilityasa keyrequirement.Tomeet thedemandsof temperaturestability, conventionalceramic heatersystemsdepend onthesensor,heaterand operatorsetpointcontrols.Eachoftheseelementsissubjecttodriftandinstabilityrequiringfrequentcalibrationand certificationtoensurecompliance.Bycontrast,therepeatabilityofSmartHeat®Technologyisinherentlydeterminedbythe molecularpropertiesoftheheatermaterialanddoesnotshiftovertime.ensuringlongtermstabilitywithouttheneedfor calibration. Reduced Risk of Overshoot Conventionalsolderingstationsstrivetocontroltheprocesswithtiptemperatureusingthermocouplesensorsandceramic heaters.Inherentwiththistechnologywillbesignificanttemperaturevariancesthroughoutthetipbodyandconsequently thermalovershoot/undershoot.Theriskisunreliablesolderconnectionsordamagedcomponents.SmartHeat®Technology,on theotherhand,detectsandcontrolstheenergyrequirementofthepad,avoidingthermaldeliveryvariancesthereby eliminatingtheriskofcomponentdamage. Perfect for Lead-Free Thestepsrequiredforreliablelead-free connectionsparallelthosefortraditional alloysexceptthatthethermaldemandsare greater.Thetypicaloperatorresponsetothe higherthermaldemandistoincreasetipidle temperature-unfortunatelyathigher temperaturesthecontributiontothermal performanceisnegligible.Moreimportantly, theincreaseintipidletemperaturecomes dangerouslyclosetocomponentand substratedamagelevelsmakingprocess controlcritical.Comparedtoconventionaltechnology,SmartHeat®combinedwithourPrecisionTipSelectiontoolsdelivers preciseprocesscontrolassuringconsistentlyreliableconnectionsatlowoperatingtemperatureswhichprovidethethermal performancenecessaryforlead-free. Increase Tip Life and Value Theusefullifeofatipisdependentuponmanyfactorsincludingfluxcorrosion,oxidationandtindissolution.Withhigher tip idletemperatures,thecontributionfromthesefactorsisdramaticallyincreased.Theresultantde-wettingfromthesechemical surfaceinteractionscausesmanyoperatorstoincreasetipforce,whichsignificantlyacceleratestiplifedeterioration.Withthe advantagesofSmartHeat®Technologyoperatorscansolderatlowertemperaturesand,combinedwithpropertipselection andcare,dramaticallyextendtiplifeandvalue. |
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