C4740D

Description

C4740D is a general purpose Ag/Pt conductor for use on Al2O3 substrates. C4740D is suitable as a termination for all Heraeus air fireable resistor systems and also performs well as an inner layer conductor in mutilayer applications. C4740D can be printed at speeds up to 12 inches per second.

Key Features

Outstanding adhesion to alumina and beryllium oxide (BeO) substrates
Excellent performance at high print speeds
Excellent solderability

Metal

AgPt

Viscosity

70 – 90 kcps, Brookfield HBT, SC4-14 spindle & 6R utility cup @ 10 rpm, 25°C

Coverage

106 cm2
/g at 14 microns fired film thickness

Coverage

106 cm2
/g at 14 microns fired film thickness

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

280 stainless steel mesh screen
0.5 mil emulsion

Drying Temperature

Allow parts to level at room temperature for 5 minutes. 150°C for 10 minutes

Process Temperature (TDS)

850°C peak temperature
Dwell time of 10 minutes at peak _x000D_

Film Thickness

12-16 microns