IC Die Under SEM & Thin Film Resistor Attempt at FabLab Munich

- www.fablab-mue...

[@Gigabecquerel]

Man, you make videos with some real weirdos!

[@NNNILabs]

birds of a feather flock together

[@Hedrix01]

regarding home-made resistors: glass (especially microscope slides) is a tricky material to sputter on, cleaning with only acetone or isopropyl alcohol tends to lead to really bad surface adhesion. Acetone or alcohol has that annoying property that it does not fully evaporate, it leaves a thin residue behind that then sits between the glass and sputtered film. This is especially problematic for the very smooth glass, so a substrate like aluminium oxide (especially with a somewht coarse-ish surface) tends to give you way better surface adhesion. im currently experimenting with aluminium oxide insulators originally intended for TO-220 transistor packages, which are quite cheap to get on ebay etc. Should you have acess to a fiber laser cutter, creating a mask out of thin metal foil (similiar like pcb stencils) is way easier and less annoying than having to peel off metal-coated tape. + the added benefit of having the freedom to create patterns -> easier to reach high resistances. Plus the laser can then be used to laser-trim the resistor.

[@NNNILabs]

Thanks for the ideas! The thing we sputtered on was a piece of scrap acrylic, not a glass slide. Sadly the sputtering machine is in Munich, and now that I'm settled in Hannover I don't think I'll get many chances to play around with it again...I'll definitely pass on your comment to the guys at the FabLab!

[@kavithasudhakar7376]

Superb