<mjgardes>
the hard part is learning how semiconductors work
<mjgardes>
after that, it's just a matter of buying stuff and putting it together
<Sync>
learning how semiconductors work is the easy part imho
<mjgardes>
I mean at a sufficently advanced level to be able to explain why an impurity has a certain effect
<SpeedEvil>
And then enough chemistry to learn why impurities may occur
<bofh_>
often it's tricky to be able to conclusively say why a given impurity has a given effect, especially at low impurity concentrations
<mjgardes>
and not just impurities, but crystallographic defects as well
<mjgardes>
right, that's the hard stuff
<Sync>
bofh_: not really, as with semi conductors *any* is too much basically :D
<Sync>
look at the metal ion concentrations in puranal chemicals
<Sync>
and then look at dopant concentrations, it does not take much
<bofh_>
Fair, I keep forgetting how low the dopant concentrations are in semiconductors
<bofh_>
(I work with superconductors, where "lightly doped" is like 10% of concentration)
<mjgardes>
ha
<mjgardes>
thin film semiconductors is yet another different world.
<mjgardes>
It's surprising how much dirt is tolerated.
<mjgardes>
yet the required amount of dopant is so low that it is really hard to measure even with the correct tools
<SpeedEvil>
One case where homeopathy works
<mjgardes>
yup
superkuh has quit [Remote host closed the connection]
<Sync>
well, not if the homeopathy is too strong
superkuh has joined #homecmos
<Sync>
(apparently if you dilute to C10 there is statistically not a single atom left of the original stuff)
<Bike>
that just means you have to buy more, to up your chances of an atom being in it
<Noxz>
I was looking more into photoresist chemistry today
<Noxz>
found a CRC book regarding photochemical reactions on ebay for like $5 that normally goes for $500
<Noxz>
nabbed it
<mjgardes>
nice
Bike_ has joined #homecmos
Bike has quit [Disconnected by services]
Bike_ is now known as Bike
nmz787_ has joined #homecmos
<SpeedEvil>
yay
merry has joined #homecmos
kristianpaul has quit [Ping timeout: 245 seconds]
kristianpaul has joined #homecmos
kristianpaul has quit [Changing host]
kristianpaul has joined #homecmos
<berndj>
Noxz, please let us know how to make DNQ from kitchen chemicals k thx
<Noxz>
hrrrrmmm
<Noxz>
'kitchen' is far from what I am doing though
<Noxz>
I'm actually nearing the end of my fumehood build
<Noxz>
sure, I am not getting chemicals from suppliers
<berndj>
i mean i've got citric acid, sugar, and sodium bicarbonate, can't be too hard amirite
<Noxz>
not many atleast
<Noxz>
heh
<berndj>
oh and i do have mothballs
<berndj>
which IIRC actually has sorta something to do with DNQ synthesis
<Noxz>
I think I read that ortho-nitro benzaldehyde is a common photochemical
<Noxz>
which is partly easier to amke?
<berndj>
i've always wondered, isn't there a way to do something with olive oil or something? or linseed oil, something that cross-links slightly faster in sunlight
<berndj>
(i don't care if it's slow)
<Noxz>
hrrrmm
<Noxz>
orange oils have some photochemical compounds
<Noxz>
that upon exposure to UV cause rashing if on your skin
<Noxz>
or similar
<berndj>
oh wow i didn't know they did that
<berndj>
orange oils as in oils found in oranges?
<Noxz>
the zest/peel
<berndj>
interesting. *disappears into the intertubes*
<Sync>
I just buy SU8, way simpler than trying to make my own
<Sync>
and it works well every time
<Noxz>
who sells it?
<Noxz>
to individuals
<Sync>
I think I bought it through spi the last time