<azonenberg>
interesting, they're using the same dopants i was going to
<soul-d>
almost sounds as if your takinging a seat next to amstrong on oprah
<azonenberg>
lol
<soul-d>
yup i click and it's confirmed some people dressup weirdly that weird uv-ish light bet acid is involved somehwere
<azonenberg>
i need to go build myself some nice process control equipment for my hot plate and oven and spinner and such
<azonenberg>
also, now that i have two microscopes
<azonenberg>
(well, two high power, four total)
<azonenberg>
i might be turning the amscope into a lithography tool permanently
<soul-d>
yeah still on to do list do have nice 500C sensor i could abuse still havent gotten aroudn to getting nice relais to switch oven preferable good enough to do pid like control but to cold in shed anyhow to do projects there
<azonenberg>
oh, and for my furnace (when i get it) i'd like to do a controller or at least instrumentation
<azonenberg>
it has a controller but its not remote capable
<soul-d>
furnace sounds nice i want to have one to that does 1600c some day :P
<azonenberg>
yeah, i just dont yet trust myself to build something that will reach those temperatures without destroying itself :P
<soul-d>
refractory stuff proper blow tourch or if you can build one on carbon rod and lots of electricity but geus that one probably is small
<soul-d>
ive reached it with metal working simple coal and hair dryer works nice
<azonenberg>
well the hard part will be keeping sufficient purity to avoid contaminating stuff
<soul-d>
would like to create a bit of tamahagane steel to make own katana
<azonenberg>
oh, fun
<soul-d>
or some kitchen knifes as practice
<azonenberg>
eventually, when i get the time and cash
<azonenberg>
i want to build some 74xx chips
<azonenberg>
but there are so manythings to do first
<azonenberg>
i need to make a sputtering system for example
<soul-d>
yeah still have some vhs head i want to abuse as spinner
<soul-d>
for resit etc
<soul-d>
although you probably could use any simple motor instead one that uses 8 coils
<azonenberg>
i want to use a bldc
<azonenberg>
but the thing is, i want a vacuum chuck
<soul-d>
bldc ?
<azonenberg>
brushless dc
<azonenberg>
and i want the entire lab set up on ethernet-connected process control systems
<azonenberg>
so i can use a few workstations to run everything
<soul-d>
well those vhs are nifty contructed it has even routed electric to the spinning head
<soul-d>
so maybe use it for somthing else wher ei could use that
<azonenberg>
Yeah
<azonenberg>
Well first things first, i have a thesis to finish :p
<soul-d>
by when ?
<azonenberg>
2-3 years
<soul-d>
oh still pretty long time
<azonenberg>
yeah
<soul-d>
but indeed to much to do :P should read a bit on steppers and build simeple x,y or somthing still want to do stuff like that but if you want some stability you probably end up getting some expensive parts :(
<azonenberg>
lol yeah
<Sync>
hmm
<Sync>
when I'm through my exam session I'll try to build my spinner idea
<azonenberg>
nice
<Sync>
I also have a glass lathe on the backburner
<Sync>
it is interesting when you look in the numbers for process size and amount of devices built
<azonenberg>
how so?
<azonenberg>
also, any comments on improvements for that page?
<Sync>
a LOT (the most actually) are made using really big features
<Sync>
because the fabs are paid off and they will make you parts for next to nothing
<Sync>
because copper is more susceptible to electromigration than aluminum is. (see Wikipedia article on electromigration) because copper is more susceptible to electromigration.
<Sync>
wat
<Sync>
and blah my internet is teh lag atm
<azonenberg>
Sync: good catch
<Sync>
hehe
<Sync>
the indicator I just bought is able to resolve 500nm
<azonenberg>
lol nice
<Sync>
mahr extramess 2001
nmz787 is now known as paperPimp
paperPimp is now known as nmz787
<nmz787>
would you try to make a stepper with a DLP and microscope with servos/steppers on the XY knobs for coarse, then move the image around the pixels for fine alignment?
<nmz787>
I wonder how small you could get features, like if you used purple light
<azonenberg>
I'd use 405nm UV
<azonenberg>
as LEDs and lasers for that are easy to come by
<nmz787>
yeah
<azonenberg>
i'll shoot for 10 microns at first, then try to scale down to 1
<nmz787>
i saw using red for alignment purposes, with feedback for DLP image placement via a webcam in a split of the beam path
<azonenberg>
Interesting
<azonenberg>
makes sense
<nmz787>
i can't remember if you sent me that or i found it the same day
<azonenberg>
my thinking was to have camera in the top port and the laser/led in the eyepiece of the microscope
<nmz787>
using DLP for mask?
<soul-d>
oh wait i had in idea maybe abuse such cd drive sled thingy with worm wheel on it
<nmz787>
for what exactly?
<soul-d>
focusing or somthing the like
<nmz787>
direct laser write exposure?
<azonenberg>
no, i was actually thinking of doing LDI
<azonenberg>
with a moving stage and a fixed laser head
<soul-d>
you probavbly could abuse the sled
<nmz787>
LDI?
<azonenberg>
laser direct imaging
<nmz787>
hmm, what would you use as a fiducial ?
<azonenberg>
the camera would have some feedback mechanism
<azonenberg>
to recognize alignment marks on the wafer
<nmz787>
but what?
<azonenberg>
idk, depends on how my vision software works out
<azonenberg>
initially probably just crosses
<nmz787>
how would you get the marks there in each FOV area?
<azonenberg>
It'd be dead reckoning from the last mark, probably
<azonenberg>
with encoders on the stage
<azonenberg>
the first marks would be done at random somewhere on the die and the rest would align to them
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