C4729A

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)

Metal

AgPdPt

Viscosity

120 – 180 Kcps, Brookfield HBT SC4-14 spindle and 6R utility cup at 10 rpm, 25 °C

Printing Parameters

230 – 325 mesh stainless steel screen 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

Film Thickness

Wet: 34 – 42 µm Dried: 23 – 27 µm Fired: 10 – 14 µm