WS2 datasheet(7/64 Pages) METCAL

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3 MOS

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SMARTHEAT

TECHNOLOGY

CERAMIC HEATER

TECHNOLOGY

Pb-Sn vs. SAC Process Window

°C

400

350

300

250

200

150

100

Solder Melting Temperature

OPTIMUM REFLOW ZONE

LOW ENERGY FAIL 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.

WS2 数据表(PDF) 7 Page - Metcal

WS2 数据表(HTML) 7 Page - Metcal

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