Oops, nice catch Nathan! We were scrambling for time so there are typos. Ill make sure to edit that once the wiki pages get thawed by iGEM HQ.
We doubled up the transparencies to increase the light blocking but you need to line up the masks perfectly on a lightbox if you do decide to use two masks per board...which takes some time and proper tongue angle (old engineering joke) but yes, do print the circuit either negative or positive depending on photoresist onto high temp overhead transparency film using a laser printer and then apply it to your photoresist-laminated board for exposure.
Sebastian S. Cocioba
Sebastian S. Cocioba
CEO & Founder
New York Botanics, LLC
On Oct 1, 2015 12:56 PM, "Sebastian S Cocioba" <scocioba@gmail.com> wrote:
>
> For microfluidics, check out the protocol I developed on the SVA-NYC iGEM 2015 wiki page.
>
> http://2015.igem.org/Template:SVA-NYC/MicrofluidicsVery nice write-up. I think I will try it out, substituting the laser printer for a laser etched which I just got that has the correct exposure wavelength for the photoresist.
I found a bug in the write up... You say to user printer paper to inspect the mask... But you never say after to then print on transparency sheets (though they're listed in the reagents/BOM).
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