• Paste Type: Dielectric / Glaze
  • Application Method: Screen Printing
  • Substrate: Alumina
  • Metal: None
  • Application: Hybrid IC
  • Description: IP9227 is a gray-blue 850 °C firing dielectric composition. It withstands harsh conditions such as thermal shock cycling and hot temperature applications to meet requirements of automotive industry. IP9227 displays the following benefits:
  • Key features: Expansion coefficient is closely matched with that of alumina, to provide for minimal substrate bowing#Extremely dense, hermetic fired film allows for excellent electrical performance in a 2 layer, large area build-up#Excellent solderability and adhesion of Ag, Ag/Pd, Ag/Pt, Au and Au/Pt conductors on top of dielectric#Excellent wire bondability of Ag and Au based conductors on top of dielectric#Resistors can be processed on top of dielectric#Absence of the “Battery Effect” in more than 12 refinings#A separation of dissimilar conductor metallizations such as gold and silver is possible without formation of blisters#This enables the use of more cost-effective, high-conductivity pure silver conductors underneath the dielectric#Compatible with high reliability laser trimming methods
  • Process Temperature: Fire in air, with a 30-60 minute cycle to a peak temperature of 850 °C. Dwell time of 10-12 minutes.
  • Film Thickness : ≥ 40 um (2 separately fired layers)
  • Viscosity: 40-60 Pas (23 °C, D = 33/s)
  • Solids: 74.5 ± 1.5 %
  • Rel. Dielectric Constant K: 8-10 (25 °C, 1 kHz)
  • Dissipation Factor: < 1.0 % (25 °C, 1 kHz)
  • Insulation Resistance: > 1012 ohm x cm (25 °C, 100 V DC)
  • Breakdown Voltage : > 500 V DC (per 40 um FFT)

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