Thermal Clad Selection Guide - Bergquist Company - #7

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Thermal Clad Reliability
I_
Thermal Clad Long Term Reliability
New materials undergo a rigorous 12 to 18 month qualification program prior to being released to the market.
In state-of-the-art laboratories and test facilities, Bergquist performs extensive testing on all their thermal materials for electrical integrity. Bergquist utilizes stringent development procedures outlined in Bergquist document #Q-6019. The lab facilities at Bergquist are UL certified and manufacturing facilities are QS 9000 certified.
Extensive qualification testing consists of mechanical property validation, adhesion, temperature cycling, thermal and electrical stress. To validate long term reliability, electrical testing is performed at selected intervals to 2000 hours where final evaluation is completed.
To ensure consistent product performance with materials manu­factured, we couple the up-front qualification test with ongoing monthly audits. These audits include physical, electrical and thermal property tests.
Qualification Programs
Physical Properties
Electrical Properties
Other Properties Evaluated
Insulation Impedance Temp/Hum/Bias 85C/85%RH/100V 2000 hours
Thermal Bias Aging 125C/100V/2000h
Permitivity/Dissipation Temp/Hum/Bias 85C/85%RH/100V
2000 hours
Thermal Bias Aging 125C/100V/2000h
Thermal Shock Sand Bath 300C/1 minute and 200C/72 hour post
Peel Adhesion Pull Strength Sequential Aging
Breakdown Voltage DC and AC Sequential Aging
Ten Cycle Solder Shock
Thermal Conductivity
Thermal Stress 230C/10 min.
Thermal Stress 230C/10 min.
Flammability
Thermal Aging 125C/2000 hours
Thermal Aging 125C/2000 hours
Thermal Bias Aging 125C/480V/2000h
Thermal Bias Aging 125C/480V/2000h
Temp Cycling 500 cycles/-40C-150C
350 hours
Temp Cycling 500 cycles/-40C-150C
350 hours
Thermal Bias Aging 175C/100V/2000h
Thermal Bias Aging 175C/100V/2000h
Temp/Hum/Bias 85C/85%RH/100V 2000 hours
Temp/Hum/Bias 85C/85%RH/100V
2000 hours
Chemical Soak Loncoterge - 15 min. Alcohol - 15 min.
Chemical Soak Loncoterge - 15 min. Alcohol - 15 min.

pageCatalog pdf di En 2012-02-07-15