Posts by fafo@social.fa-fo.de
 (DIR) Post #B41xjxqnN8q4iElJS4 by fafo@social.fa-fo.de
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       the factory^Wlab must grow(New room acquired! We're still just setting it up, but it should soon turn into a proper space to hack on lighter stuff and chill in between experiments.)
       
 (DIR) Post #B4i58b2u9kqBXiR4pE by fafo@social.fa-fo.de
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       fafo logistics: "poor decisions, delivered fast"
       
 (DIR) Post #B4te4zCI3QA8QIOmbg by fafo@social.fa-fo.de
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       First machine on the healing bench! This us an Edwards E306A thermal evaporator. We are its third but really second owner - the previous folks just kept it in a corner gathering dust.Its cooling circuit is leaking, it's missing a pump exhaust filter/conduit, and its film thickness monitor seems to have been violently ripped out at some point.But the roughing pump runs and it seems to be pulling _a_ vacuum... So there's potential!
       
 (DIR) Post #B5DxFkwDC7T9fsvSca by fafo@social.fa-fo.de
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       NEW TECH UNLOCKED: Thermal Evaporation Vacuum CoatingYou can now deposit thin films of metal! Use this to build up metal gate and interconnect layers in your fab."I can't believe that just worked!" - q3k(upper slide is Ti, lower is Al)
       
 (DIR) Post #B5DxFmn4J5LNQ6fBeC by fafo@social.fa-fo.de
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       Special thanks to visiting scientist @gigabecquerel who not only brought us some diff pump oil but also helped us get the instrument actually running.
       
 (DIR) Post #B5EB8qOpt8zFwduei8 by fafo@social.fa-fo.de
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       amogus-scale features now possible at fafo(behold, the sharpie lift-off process: scribble your substrate with a sharpie, deposit Al, dissolve sharpie with acetone)
       
 (DIR) Post #B5EU3HbdijwtiRxnCy by fafo@social.fa-fo.de
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       Did we just made a Schottky diode?Al on n-doped Si. Random Fe contacts to Al and Si to measure. Positive lead to Si, negative to Al.X = V (2V per division)Y = I (100mA per 1V, so 5mA per division.)(the I/V curve is a composite image of two waveforms)Si has its protective oxide layer forcefully removed using abrasive methods (ie. sandpaper [!] - still working on being able to handle HF safely).Not sure if it matters, but the Al is thermally evaporated aluminum foil from EDEKA.
       
 (DIR) Post #B5F1n5EVLw9z9KaauW by fafo@social.fa-fo.de
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       @xeno Yes, I checked already, Fe/Si/Fe seems ohmic, maybe with a _slight_ nonlinearity - but not nearly as pronounced as  Fe/Al/Si/Fe above. But it's difficult to get a low resistance path to measure that well right now...~q3k
       
 (DIR) Post #B5QoZZaqi3XrkVmsBE by fafo@social.fa-fo.de
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       vacuum pump mayoinnaise
       
 (DIR) Post #B5RewOwlecnX0TFJho by fafo@social.fa-fo.de
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       beans
       
 (DIR) Post #B5fULGGcgRTu2lcjgW by fafo@social.fa-fo.de
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       big succ doesn't want you to know this, but you can just put petg 3d prints in a vacuum chamber and blast them with aluminium
       
 (DIR) Post #B6MxQHYsYB1hySBb16 by fafo@social.fa-fo.de
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       we have successfully achieved gamerification of our SEM's image processing unit (BIVAS)