Ultrapurple
Thermal movie - R Pi 3 processor thinking
This is a close-up of a Raspberry Pi 3 processor 'thinking'. Various parts of the silicon chip heat up as they are used for different processes.
This movie was shot in real time whilst running a benchmark to test different parts of the processor. It was filmed using a Therm-App thermal imaging camera with a 13mm f/1 germanium lens, with ThermAppPlus driver software.
The granularity of activity on the processor chip isn't as fine as I'd have expected. You can see from the writing on the IC package that the focus was pretty good, so nothing is getting blurred by any settings of the thermal camera. I guess there's some sort of heat spreading going on inside the package, either just through the silicon itself or perhaps it's on some sort of conductive substrate. (Whatever it is, it's not very thick - the chip package is very slender and, as you can see from the X-Ray image referenced in the comment below, doesn't seem to contain anything particularly X-Ray opaque, like copper).
I was disappointed by the way the temperature display figures came out on the video. But they're just about legible. One day I may re-shoot this using a different recording method so the figures show up better.
The temperature range between the coldest and hottest parts of the chip is about 15°C, so it's not getting particularly stressed. I imagine it would get a bit hotter running really processor- and graphics-intensive stuff. However, it probably wouldn't show up so dramatically: you'd just get one big hotspot.
For more thermal imaging of a wide variety of subjects, visit the Therm-App users' group at www.flickr.com/groups/therm-app-users/
Comments are warmly welcomed.
Thermal movie - R Pi 3 processor thinking
This is a close-up of a Raspberry Pi 3 processor 'thinking'. Various parts of the silicon chip heat up as they are used for different processes.
This movie was shot in real time whilst running a benchmark to test different parts of the processor. It was filmed using a Therm-App thermal imaging camera with a 13mm f/1 germanium lens, with ThermAppPlus driver software.
The granularity of activity on the processor chip isn't as fine as I'd have expected. You can see from the writing on the IC package that the focus was pretty good, so nothing is getting blurred by any settings of the thermal camera. I guess there's some sort of heat spreading going on inside the package, either just through the silicon itself or perhaps it's on some sort of conductive substrate. (Whatever it is, it's not very thick - the chip package is very slender and, as you can see from the X-Ray image referenced in the comment below, doesn't seem to contain anything particularly X-Ray opaque, like copper).
I was disappointed by the way the temperature display figures came out on the video. But they're just about legible. One day I may re-shoot this using a different recording method so the figures show up better.
The temperature range between the coldest and hottest parts of the chip is about 15°C, so it's not getting particularly stressed. I imagine it would get a bit hotter running really processor- and graphics-intensive stuff. However, it probably wouldn't show up so dramatically: you'd just get one big hotspot.
For more thermal imaging of a wide variety of subjects, visit the Therm-App users' group at www.flickr.com/groups/therm-app-users/
Comments are warmly welcomed.