Just had to use my tip I invented a while back. This time a SIL IC with the
lettering side of the IC 2 mm from a large block cap. Would have required 3
hours taking boards apart and back together to desolder just to read.

Used a 1mm steel rod covered with some turns of PTFE for the "rubbing" and
pulling a length of PTFE around the IC through the gap to take the image. I
urge everyone to give it a try, so it is impressed on memory for when
needed, its just like magic

How to read unreadable IC/transistor lettering
Yes, just like magic.
I could not read 3 of the 5 characters on a heat damaged TOP66 power
transistor.
I wondered if a sort of "brass rubbing" would work...