QLCu2112 is a nano-copper paste suitable for pressure sintering processes.It utilizes a self-developed paste formulation with excellent antioxidant capacity.It can be used in vacuum,nitrogen,and for micacid atmospheres,providing a high-reliability packaging solution for high-power devices.
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Indicators
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Performance
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Remarks
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Metalcontent
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>80%
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AccordingtoTGresults
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Particlesize
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≤1000nm
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Sinteringtemperature
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≥250℃
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Sinteringpressure
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10-20MPa
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Sinteringtime
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5min
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Halogencontent
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Zerohalogen
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Sinteringatmosphere
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Vacuum,inertatmosphere,formicacidatmosphere
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Sinteredsurface
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Cu、Ag、Au
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Workinglife
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≥8h
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Storagecondition
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≤-20℃
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Shelflife
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6months
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Model
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ThermalConductivity
（W/mK）
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ElectricalResistivity
（mΩ.cm）
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Coefficientof
ThermalExpansion
（ppm/K）
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ShearStrength
（MPa）
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QLCu2112
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>200
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<0.015
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17.2
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>40
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·The porosity of the sintered structure is as low as 7%-9%.
·Applicable to Au,Ag,Cu surfaces.The shear strength can be greater than 60 MPa with Ag surface.
·High electrical and thermal conductivity,longer lifespan,and higher reliability.
