<Noxz>
again, the main idea I am chasing is photoelectric effect on photodiodes doped with a low work substance that will eject the electrons into the vacuum
<Noxz>
incase others wanted to chime on in that regard
<Noxz>
otherwise I will likely just be dumping my thoughts mostly here ;)
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<Noxz>
my brain hurts
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<SpeedEvil>
My rage hurts.
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<pie_>
i keep trying to think of lithographic methods that would be good for homecmos but if anyhting was simpler/better/etc industry would alreadybe using it >_>
<SpeedEvil>
Well - they'd only be using it if it was useful for them
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<pie_>
SpeedEvil, sure
<Noxz>
hrmmmm
<Noxz>
also, I forgot SEM could be used to expose various PRs
<Noxz>
sort of learned what a schottky barrier is, the basics of a diode, really, but how that actually applies to photodiodes, or why there needs to be a diode in it at all.. I guess you really only want current to flow one way
<pie_>
Noxz, i was speculating about exactly that earlier
<pie_>
i mean SEM for exposure
<pie_>
cuz like yknow every physics department has a sem :P
<pie_>
maybe not homecmos but ghettounicmos is still a step in a direction
<pie_>
lowering the bar
<pie_>
xP
<Noxz>
that would be awesome, to go from the piezo stages that I have to e-beam
<Noxz>
higher resolution no doubt
<Noxz>
"Exposure to these creates chain scission or (de-cross-linking) within the PMMA, allowing for the selective removal of exposed areas by a chemical developer, making it a positive photoresist."
<Noxz>
it's just acrylic, basically
<Noxz>
in chlorobenzene
<pie_>
we should all move to the same city
<pie_>
:P
<Noxz>
heh
<Noxz>
get a hacker space going on
<pie_>
alternatively, i dont suppose anyone in industry wants to take homecmos up in his arms
<pie_>
oh to be of the blessed :P
<pie_>
s/his/its/
<Noxz>
well, there's a limit of doing stuff at home in most cases, especially when you have the right tool for the job
<pie_>
sure
<Noxz>
or ismply the right tool costs a boat load
<pie_>
but thats why we have to find ghetto methods
<pie_>
take science back to the basement
<pie_>
lol
<pie_>
i mean i know im basically spouting bs
<Noxz>
it's super easy to get a sheet of acrylic plastic and dissolve it in some chlorobenzene or similar... if that is really what it comes down to
<Noxz>
but yeah, a super hack
<Noxz>
I bet dichloromethane would work well
<pie_>
beam energy?
<Noxz>
well, yeah, a SEM would still be needed ;)
<sync_>
well, the whole process is an issue
<Noxz>
or a UV laser and piezo/micro stages at first
<pie_>
i acknowledge what sync_ said
<pie_>
let alone material / other purity problems
<Noxz>
hehe, purity.....
<sync_>
getting a signle device working is easy
<sync_>
but getting a few dozen working is difficult
<Noxz>
well, are you after mass production?
* pie_
throws lots of statistics at everything
* pie_
mymbles defensive design as if that solves everything
<Noxz>
I really have to get some work done at some point.. been spending time on this subject for the past week hasnt been good for what I am supposed to be paid to do
<sync_>
no, but getting reliable results is quite difficult, even in a cleanroom setup for lab scale production
<sync_>
well, yes, it shows something over feature size
<Noxz>
and how 50um failed?
<sync_>
no, that was a contact issue
<Noxz>
heh
<pie_>
well given that the x axis goes into the negatives thats not directly a length at least >_>
<sync_>
I'll let you simmer for a while, but the difference between the two is heating one 50°K more
<pie_>
the diff between _dead and not?
<sync_>
yes
<pie_>
annealing? evaporating something off the surface?
* pie_
ponders
<pie_>
50K doesnt seem like a lot
<sync_>
yes, we did RTA
<pie_>
oh i totally missed that the series were labeled on the first frap
<pie_>
*graph
<sync_>
well, I have had results be completely different with a 10°K higher substrate temperature during evap
<sync_>
shit is critical
<pie_>
thermal effects
<sync_>
surface energy, mostly
* pie_
flails helplessly at thermodynamics
<pie_>
shit gets complicated yo xD
<pie_>
also just to be overly pedantic, i dont think you use the degree symbol for kelvin?
<pie_>
sync_, uni work or industry work?
<sync_>
uni
<pie_>
ofc if it was the latter we'd all be dead :P
<sync_>
but it is for an industry research project
<pie_>
makes sense
<sync_>
although this is just process calibration
<sync_>
and messing around
<pie_>
i think id actually be relatively lucky with the phys dept here because they do a lot of thin layer stuff, but not related to silicon at all
<pie_>
so :C
<pie_>
still have no idea whats on the images xD
<pie_>
number of failed components?
<sync_>
no
<pie_>
well that doesnt make sense with values like 0.1
<sync_>
the file name also gives a clue
<pie_>
oh, diode forward voltage
<sync_>
gotta get your espionage skill up
<pie_>
i was staring at forward but it didnt click till you said anything :/
<pie_>
soooo voltage-current curve?
<pie_>
ah yeah that looks like it makes sense
<sync_>
yes, it also shows very characteristic behaviour
<pie_>
well i didnt learn the material properly :/
<pie_>
we did cover diode curves once but i always have a bunch of junk interfering with my studying. hoping to have better luck / be better at studying this semester. but anyway,
<pie_>
that 50um curve is weird
<pie_>
sync_, since youre pretty in this, do you have any book reccommendations? or is being in courses/connected with industry the only real way to do this stuff
<sync_>
the sze is pretty good, but I wouldn't have understood anything without a course and doing it myself
<pie_>
sync_, well you know theres shitty indian companies that reprint books put them in a crap softcover binding, sell them as hardcover but put that its softcover in the description somewhere