The beachgoers flee as hulking monsters climb from the dark water…

This is a scanning electron microscope image of some various-sized pillars that appeared on one of my samples during a plasma etching test.  They’re made of semiconductor, and the bright plain beneath is silicon.  Showing through the dark hole in the silicon is a base layer of smooth glass.  None of the semiconductor pillars, little guys or monsters, are supposed to have been there - the plasma was supposed to scour the silicon clean, and instead this scene emerged.  Fortunately, the next sample was a lot more drama-free.

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