Salamandra



Feeling a bit fed up with those black-and-white SEM images, today it's time to color up!!!

I'm not so sure if anyone else sees a salamandra in this pic (I do!), in fact it's a leftover of the PMMA layer.
PMMA  is a special kind of resist which we use for electron beam lithography. In this resist we can 'draw' shapes and lines with the electron beam and then fill them with metal, so they stay forever on the chip (like the small cross in the left corner of the pic). The PMMA should go away with acetone, but sometimes it leaves some stains and residues, just like on this sample.



UPDATE! Since nobody else sees a salamandra I propose baboso del mar  (or a sea pancake!)
No. 3 on the list http://de10.com.mx/13048.html  :)

3 comments:

amelia | December 9, 2011 at 3:28 AM

i don´t see a salamandra there but i love the pic!! :)

Alejandro Casillas | December 9, 2011 at 4:54 PM

where is the salamandra??? is a nice pic, i love the colors!!!

Alejandro Casillas | December 9, 2011 at 5:22 PM

jajajaja, i'm agree, :P

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