Determining maximum Arria 10 die temperature for safe operation

[Altera_Forum]

Can anybody point to guidelines for die temperature required for safe and prolonged operation of an Arria-10 FPGA. 

 The device can operate between 0 and 100C. Arria-10 documentation mentions some margin. I'm used to work with 35-55C temperature ranges in my previous Stratix-V projects.  The temperature I'm measuring on a current Arria-10 board is reaching 75C with the best possible cooling. I wonder if it's safe for a prolonged operation.  Thanks, Evgeni

[Altera_Forum]

I'm unaware of any Altera 'guidelines'. I can offer feedback we received from another vendor to whom we put the same question when we were seeing temperatures of over 90 degrees. The part in question is a little older than Arria 10 and manufactured on a 40nm process. However, I suspect the guidance is still valid. 

 The datasheet for the part in question states an 'Operating Junction Temperature, Maximum' of 110 degrees C. They told us the device will operate quite happily anywhere under that maximum. So, providing we could manage the temperature accordingly all would be well.  We ended up going to market with the product (which is on 24hr/day), about 3 years ago, managing the temperature to 85 degrees under load (10-30% of the time) and around 65 degrees at all other times.  Cheers, Alex

[Altera_Forum]

Thanks Alex, 

This is quite useful piece of info.  Evgeni

[Altera_Forum]

Hi Alex, 

 Thanks for the sharing of this info.

[Mare]

Hi,

What happens in the case of an empty or unconfigured Arria 10 GX FPGA? Is it also expected that the FPGA gets extremely hot, which in the end results in thermal shutdown?