C4740M
- Paste Type: Conductor
- Substrate: Alumina (Al2O3)
- Application Method: Screen Printing
- Application: Hybrid IC
Details
Description
C4740M is a Pt/Ag conductor for use on alumina and BeO substrates. C4740M is suitable as a termination for all Heraeus air fireable resistor systems or for circuits, which require aluminum wire bonding. C4740M easily prints fine line patterns or large area ground planes, even at high print speeds.
Key Features
Outstanding adhesion to alumina and berillium oxide substrates
Can be used as a resistor termination
Low Resistivity
Can be used as a resistor termination
Low Resistivity
Metal
AgPt
Viscosity
180 – 250 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
250- 325 stainless steel mesh screen,
0.5 mil emulsion
0.5 mil emulsion
Drying Temperature
150°C for 5-10 minutes
Process Temperature (TDS)
850°C peak temperature
Dwell time of 10 minutes
Dwell time of 10 minutes
Film Thickness
Fired: 9 - 12 microns