- Heraeus Electronics /
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- 3289
3289
- Paste Type: Disc Termination
- Substrate: PZT, NTC Ceramics, Alumina (Al2O3), Steatite, Porcelain
- Application Method: Screen Printing
- Application: Piezo, Component Metallization
Details
Description
3289 is a silver bearing conductor paste designed to screen print solderable electrodes onto a variety of electrical ceramic component devices. The fired film forms a highly adherent bond to many types of substrates, including piezoelectric transducers (PZTs), NTC thermistors, alumina, steatite and porcelain. The metalized electrode is solderable for external lead attachments.
Key Features
Excellent adhesion
Low temperature firing (< 700°C)
Excellent solderability
Compatible on piezoelectric transducers (PZTs), NTC thermistors, alumina, steatite and porcelain
Low temperature firing (< 700°C)
Excellent solderability
Compatible on piezoelectric transducers (PZTs), NTC thermistors, alumina, steatite and porcelain
Metal
Ag
Viscosity
40 – 50 kcps Brookfield RVT, Spindle #7 @ 20 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 stainless steel mesh screen
0.7-1.0 mil emulsion
0.7-1.0 mil emulsion
Drying Temperature
100-150°C for 10-15 minutes
Process Temperature (TDS)
600 - 700°C peak temperature
Dwell time 8-12 minutes at peak
Cycle time of 45-60 minutes
Larger parts may require a longer firing profile
Dwell time 8-12 minutes at peak
Cycle time of 45-60 minutes
Larger parts may require a longer firing profile
Film Thickness
12 - 20 microns