Photomicrograph used in a sentence

Photomicrograph in a sentence as a noun

It likely means that they took a photomicrograph through a 20x lens using the highest resolution camera they had handy.

The only bit I struggled to follow was matching up the diagrams with the actual photomicrographs of the circuits - wasn't quite sure what was meant by 'pullup' - is that just a straight connection?

The only slides he had were figures of his results - photomicrographs of tissue, graphs of drug effects, etc - probably lifted from a paper in preparation, and so probably done by his graduate students anyway.

From the article:"Not all processors are designed this way, some designs,known as random logic, the op codes control the actual hardware directly"An interesting note is that the name "random logic" comes from the fact that when you look at a photomicrograph of a hard-wired CPU design you don't see any discernible geometric patterns like you do on a microcoded CPU.