C4729A
- Paste Type: Conductor
- Substrate: Alumina (Al2O3)
- Application Method: Screen Printing
- Application: Hybrid IC
Details
Description
C4729A is a Ag/Pt conductor, designed for automotive applications. C4729A is a new member of Heraeus‘ line of lead free conductors with excellent fired film density, high conductivity, good solder leach resistance, excellent aged adhesion and aluminum wire bondable.
Key Features
Excellent aged ahesion
Dense fired film
Good Al wire bond adhesion (initial and aged)
Dense fired film
Good Al wire bond adhesion (initial and aged)
Metal
AgPdPt
Viscosity
120 – 180 kcps, Brookfield HBT, SC4-14 spindle & 6R utility cup @ 10 rpm, 25°C
Storage and Paste Preparation
Store in a dry location at 5 – 25°C. DO NOT REFRIGERATE. Allow paste to come to room temperature prior to opening. Spatulate well before using, as settling may occur during storage.
Warranty
Material guaranteed to meet specifications for 6 months from date of manufacturing with proper storage.
Printing Parameters
230 – 325 mesh stainless steel screen
0.5 mil emulsion
0.5 mil emulsion
Drying Temperature
150 ºC for 10 minutes
Process Temperature (TDS)
850 ºC peak temperature
Dwell time of 10 – 12 minutes
Total cycle time of 36 – 60 minutes
Dwell time of 10 – 12 minutes
Total cycle time of 36 – 60 minutes
Film Thickness
Wet: 34 – 42 µmDried: 23 – 27 µmFired: 10 – 14 µm