I read an article* about ARM using imprint lithography to create a working Cortex M0 microcontroller. Feature size is equivalent to a 2 um process (which was achieved about 30 years ago in silicon), but it still seems pretty exciting - I could find use-cases for something like that in my own day-to-day hardware projects if hobbyists ever find a way to recreate these kind of machines for cheap (much like the DIY CNC machine &amp; 3d printing scene has done)<p>* <a href="https:&#x2F;&#x2F;semiaccurate.com&#x2F;2015&#x2F;11&#x2F;18&#x2F;arm-charts-path-printed-plastic-chips&#x2F;" rel="nofollow">https:&#x2F;&#x2F;semiaccurate.com&#x2F;2015&#x2F;11&#x2F;18&#x2F;arm-charts-path-printed-...</a>