berndj | http://future.wikia.com/wiki/Desktop_Semiconductor_Foundry | 22:51 |
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azonenberg | swkhan: i mailed the wafer on tuesday | 22:53 |
azonenberg | did it arrive yet? | 22:54 |
azonenberg | berndj: interesting | 22:54 |
swkhan | azonenberg: maybe. i was in lab yesterday. i'll see tomorrow | 22:55 |
swkhan | yay i'm so excited =) | 22:55 |
azonenberg | for silicon? Lol | 22:55 |
azonenberg | Oh, the life of a geek | 22:55 |
azonenberg | swkhan: it was supposed to arrive today or tomorrow so it should def be there by then | 22:56 |
azonenberg | https://tools.usps.com/go/TrackConfirmAction?qtc_tLabels1=03111660000217115920 | 22:57 |
azonenberg | arrives tomorrow | 22:57 |
swkhan | this should be fun | 22:59 |
azonenberg | indeed | 22:59 |
swkhan | i'll run it in the tube furnace with 99.999% N2 running through the quartz tube | 22:59 |
swkhan | we have oxygen leaks so you should get some oxygen in there... | 22:59 |
azonenberg | N2? Or O2? | 22:59 |
azonenberg | Can you run it in air though? | 23:00 |
swkhan | we have compressed air and an O2 filter. i could try that as well | 23:00 |
swkhan | i can run it in air as well | 23:00 |
swkhan | yeah air would probably be easier anyway :p | 23:00 |
azonenberg | The numbers i have for thickness are air | 23:00 |
swkhan | no vacuum, i forgot | 23:00 |
azonenberg | See if you can do a couple of thicknesses | 23:00 |
swkhan | okay will do | 23:01 |
Action: azonenberg calculates cook times | 23:01 | |
azonenberg | at 1100C, 50nm is 23 minutes | 23:01 |
azonenberg | 100 is an hour | 23:01 |
azonenberg | 200 is around 3 hours | 23:01 |
swkhan | can you measure the thickness yourself? | 23:02 |
azonenberg | http://www.htelabs.com/appnotes/sio2_color_chart_thermal_silicon_dioxide.htm | 23:02 |
swkhan | i don't know how i'd be able to measure thickness without contaminating your surface | 23:02 |
azonenberg | diffraction coloring | 23:02 |
swkhan | i mean experimentally | 23:02 |
azonenberg | 50nm would be tannish | 23:02 |
azonenberg | 100 a deep purple to blue | 23:02 |
azonenberg | 200 gold-yellow | 23:03 |
azonenberg | And if you dont mind leaving it in there for five and a half hours, 300nm is dark blue | 23:03 |
azonenberg | to purple | 23:03 |
azonenberg | So why dont you put a bunch of samples in there, then take out some pieces after half an hour (60nm), an hour (100), three (200nm) | 23:05 |
azonenberg | and maybe longer to grow it really thick | 23:05 |
azonenberg | When you cleave it, make sure to remove the silicon dust from the surface - a gentle wipe with a wet lab wipe followed by optional sonication should do the trick | 23:06 |
swkhan | azonenberg: how long would you say sonication should take to get rid of the silicon dust? | 23:22 |
swkhan | 5 minutes? 10 minutes? my professor laughed at me when i put silicon in acetone for 1 hour -_- | 23:22 |
azonenberg | Not long | 23:22 |
azonenberg | i dont even do it | 23:22 |
swkhan | well you're talking to a professional here =p | 23:22 |
azonenberg | I usually just wipe with a lint-free wipe for a few seconds | 23:23 |
azonenberg | and you're talking to a guy whose fab is in a corner of a living room :p | 23:23 |
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