Disassemble some modules from IRay

[lichenzc]

Great to find this forum to discuss thermal imaging . I am from China, I can hardly find a technical forum to discuss thermal imaging on the Chinese Internet. There are some small forums, but they are all focused on thermal imaging for hunting.

Here I get three thermal modules from IRay (or InfiRay). The model of these modules are LB3230 and FT384. LB3230 is a very early module of Iray. I can't find its specification. But some key information can be guessed from its model name. The resolution may be 320 * 240, the pixel pitch may be 35um (IRay's first thermal detector pixel pitch is 35um, then 25um/20um), and the frame rate is 50Hz (according to my test).

The other two modules are both FT 384.but they have different thermal detectors,RTD311 and RTD3171MR,they both have 17um pixel pitch.RTD311 is early than RTD3171MR,and RTD3171MR can find on IRay’s website.



The user extension board have different interfaces.LB3230 only have a HRS socket for power/rs232/video.One of the FT384 have two focus/zoom sockets,the other have digtal video output sockets.

[lichenzc]

continue

[lichenzc]

This is the direct observation of die through germanium window by thermal imaging,you can observe die very clearly

[lichenzc]

Here are some interesting pictures showing that the 384 resolution microbolometer is modified from a larger die! I have a RTD611 which resolution is 640*512. These two photos show where the temperature rises when two dies working.

[Vipitis]

Great showcase. Especially looking through the window and seeing how much smaller the actual die is. The shutter flag looked like it was blocking the corner of the image if you don't know the specifics.

Having a smaller resolution version window was seen on other devices like the TE-M1 from ThermalExpert but I don't believe we ever found out if those were two different detectors (as they moved the window to the center via a software update).

As IRay has since made 12μm and even 8μm sensors, it would be very interesting to see how much their packaging technology has advanced in this short time.

[All Seeing Eye]

IR yield is very low,below 40%,so there will be E4 crack into E8,in fact the chip is the same.