Hi,
> - LS50U/MLL: It is proposed to make a maskless exposure unit based on
> JBD's uLED panel targeted at 50-100um MFS, and make it available bundled
> into a "DIY Microchip Fabrication Kit" containing everything needed for
> a basic process. Details discussed so far:
...
> Just another two considerations: Our target audience with this kit is
> the unit-radius citizen without significant financial resources (hence
> the 300Eur target price), so the following needs to be addressed:
Is providing an "NDA-less fab" service using these kits within scope, or would anyone on this list consider providing such a service? I'm asking this for two reasons. First, I'm skeptical about a 300€ price target for such a kit, but a fab service would map that cost to a larger number of users. Second, for people like me, even paying 100€ for a single prototype is much more appealing than dealing with HF in my basement.
Greetings,
Martin
Hello Everyone,
Summary of the Mumble session:
Participants: eegerferenc, hsank, leviathan, tatzelbrumm
Agenda:
- LS50U/MLL: It is proposed to make a maskless exposure unit based on
JBD's uLED panel targeted at 50-100um MFS, and make it available bundled
into a "DIY Microchip Fabrication Kit" containing everything needed for
a basic process. Details discussed so far:
* Substrate: custom, 1-2cm rectangular "wafers" in order to make
alignment easier and to fit into a small tube furnace. Similar, but
polycrystalline offerings exist for solar panels. Finding and quoting a
supplier is in progress.
* Exposure: JBD uLED panel + simple projection/reduction optics +
3D-printed framework for alignment, into which the chips can be slided in.
* Furnace: cheap second-hand tube furnace, or a tube furnace heater
with retrofitted quartz tube and control electronics (backup plan).
Metal-lined, graphite-lined or gas-heated types are to be avoided due to
contamination issues.
* Chemicals (HF, B, P, As, acidic cleaning agents, ...): Ordered in
bulk and repackaged for distribution to overcome that chemical reagent
suppliers don't deal with individuals.
* Funding: Initially, crowdfund with unit price based on the
expectation of at most 2 customers (semiconductor-related crowdfunding
tends to fail), then lower the UP if more customers come. Also, plan B
shall be formulated.
* Legal background: form a limited-liability company to handle the
stuff.
Discussion is expected to continue until next Sunday, when things are
expected to be written down. Comments on mailing list or participation
in the Mumble session are welcome.
Regards,
Ferenc
On 20/03/2021 09:29, Hagen SANKOWSKI wrote:
> Hello List!
>
> This is our weekly announcement for the next Mumble Sessions on Sunday
>
> 2021-03-21 @ 18:00 UTC.
>
> Please join us as usual at our Mumble Server murmur.libresilicon.com at
> Port 64738, the Channel is IC.
>
> We like to follow-up our meeting minutes from mumble sessions before.
>
> Regards,
> Hagen.
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