FLOWCHART:

SCHEMATIC MODULE:

TEST FACILITY:

CLIMATE CHAMBER:

TEST MODULE:

Test Results (postscript format):

(1) Heating up without cooling

(2) 1 cooling contact per hybride (coolant temp.=20 deg.C)

(3) 1 cooling contact per hybride (coolant temp.=10 deg.C)

(4) Extended cooling (2 cooling contacts per hybride)

(5) 4 Chips next to the cooling

(6) Module in climate chamber (40 deg.C)

Summary Test Results

TEST	dT 1	dT 2	dT C	Tmax 1	Tmax 2	Tmax C
1	5.9	3.2	5.0	48.7	48.2	44.5
2	13.8	13.2	11.6	39.4	40.9	36.5
3	16.5	15.2	14.3	34.5	35.7	32.2
4	8.7	7.3	6.8	33.5	33.2	30.9
5	5.0	7.5 #1	4.2	30.3	33.6 #1	28.6
6	10.3	8.4	8.4	36.7	36.5	36.5

#1: temp. with 6 chips in a row (bottom hybride isn't changed)

dT 1 = Tmax-Tmin on top hybride
dT 2 = Tmax-Tmin on bottom hybride
dT C = Tmax-Tmin on Carbon support
Tmax 1 = Maximum temp. on top hybride
Tmax 2 = Maximum temp. on bottom hybride
Tmax C = Maximum temp. on Carbon support

Infrared picture of the test module:

The Infrared picture is taken with a Prism DS camera. The emission factor is 1. The picture is not compensated for different emissivities. An important item is the hotspot on the carbon support caused by convection between the hybrid on the backside and the carbon support.