Dear all,
I would like to know if someone has an experience with testing PCBs in temperature chambers following the production stage.
In fact, we have to check 200-300 PCBs in 3 differents temperature : -40°C, 20°C and 60 °C. In our company, we have a temperature chamber allowing to acheive these temperatures.
In this temperature chamber, we have a mechanical PCB fixture (based on bed of nails system) allowing to do the tests (picture attached).
However, our bed of nail device deforme easily with variation of temperature, making the results completely incorrect....!
in fact the contacts between the test probes and the PCB points are dependent of temperature !
Do you know what system is used in industry, to test PCBs in different temperatures?
How these machine can resist thermal chocks?
Many thanks,
Bests regards,
P M
I would like to know if someone has an experience with testing PCBs in temperature chambers following the production stage.
In fact, we have to check 200-300 PCBs in 3 differents temperature : -40°C, 20°C and 60 °C. In our company, we have a temperature chamber allowing to acheive these temperatures.
In this temperature chamber, we have a mechanical PCB fixture (based on bed of nails system) allowing to do the tests (picture attached).
However, our bed of nail device deforme easily with variation of temperature, making the results completely incorrect....!
in fact the contacts between the test probes and the PCB points are dependent of temperature !
Do you know what system is used in industry, to test PCBs in different temperatures?
How these machine can resist thermal chocks?
Many thanks,
Bests regards,
P M