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There's been lots of progress on DIY/academic maskless photolithography by using TI digital micromirror devices from projectors to reflect light into a microsco
by akiselev 6y ago
There's been lots of progress on DIY/academic maskless photolithography by using TI digital micromirror devices from projectors to reflect light into a microscope for exposing photoresist. They even sell a UV version that is just for this purpose (maskless light manipulation in general). As usual, the bigger issue is alignment between steps and the etchants.
Still don't know what it has to do with 3d printing, except the article sounds like GPT3 mindlessly connecting lithographic resin 3d printers and semiconductor photolithography, with a Google Scholar search on those terms as a data set.
- pixelface 6y agoformlabs released a repo to use their old model printer (form 1 / 1+) to do stuff along these lines. i've tested it as far as exposing a photoresist (after forking and fixing some issues) and it is definitely a cool thing to not have intermediate steps like transparencies or toner transfer.
- blueblisters 6y ago> maskless photolithography by using TI digital micromirror devices from projectors to reflect light into a microscope I just looked this up. It's incredible that maskless photolithography is even possible. Are these devices used in any high volume processes for manufacturing PCBs, for example?
- brennanpeterson 6y agoThe more common maskless route is laser direct write. That is capable to micron level dimensions, and multicolor variants have been proposed to allow submicron. Ebeam direct write is capable to NM level features. Just slow. http://www.periodicstructures.com/ http://www.periodicstructures.com/ Has some neat papers on this.