IP9227
- Paste Type: Dielectric / Glaze
- Substrate: Alumina (Al2O3)
- Application Method: Screen Printing
- Application: Hybrid IC
Details
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 refinings3 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
Metal
None
Viscosity
40 – 60 Pa·s (23 °C, D = 33/s)
Coverage
c. 70 cm2/g (35 μm wet film thickness)
Coverage
c. 70 cm2/g (35 μm wet film thickness)
Storage and Paste Preparation
Store in a dry, cool (5 - 25°C), dark place with container tightly shut. Allow paste to come to room temperature prior to opening. Spatulate well before using.
Warranty
Material guaranteed to meet specifications for 6 months from date of manufacturing with proper storage.
Printing Parameters
165 – 230 mesh stainless steel screen with Direct
Coating (no emulsion). To achieve optimum
performance two individually fired layers with a
total thickness of at least 40 µm are recommended.
A 230 mesh screen will offer best via resolution.
Coating (no emulsion). To achieve optimum
performance two individually fired layers with a
total thickness of at least 40 µm are recommended.
A 230 mesh screen will offer best via resolution.
Printing Speed
Up to 10 cm/s
Drying Temperature
Dry at 150 °C for 10 - 20 minutes
Process Temperature (TDS)
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 μm (2 separately fired layers)