| fenn | high speed micro scale photolithography (video) http://www.tuwien.ac.at/en/news/news_detail/article/7444/ | 02:58 |
|---|---|---|
| fenn | same system could be used for rapidly making custom silicon etch masks in one step | 02:58 |
| fenn | more about the chemistry involved http://fennetic.net/irc/two_photon_polymerization.pdf | 02:58 |
| fenn | they achieved resolution of 120nm at speeds of ~5m/s | 02:59 |
| azonenberg | Hmm | 03:02 |
| azonenberg | interesting | 03:02 |
| fenn | of course you also need a femtosecond laser | 03:06 |
| azonenberg | Lol | 03:06 |
| azonenberg | Details, details | 03:06 |
| B0101 | hello azonenberg | 07:25 |
| azonenberg | hi | 07:26 |
| azonenberg | Any progress on the josephson junctions? | 07:26 |
| B0101 | nope, but i'm researching on Quantum Dots for now | 07:26 |
| azonenberg | interesting | 07:27 |
| B0101 | ok... peracetic acid seems like a good household cleaner though... | 07:30 |
| azonenberg | lol never heard of it | 07:30 |
| B0101 | its CH3CO3H | 07:31 |
| azonenberg | So one more O than acetic | 07:31 |
| azonenberg | how different is its behavior? | 07:31 |
| azonenberg | it seems like it'd be an oxidizing acid like nitric | 07:32 |
| B0101 | its weaker than acetic acid | 07:32 |
| B0101 | and it is an irritant as well | 07:32 |
| azonenberg | well most acids are :p | 07:32 |
| azonenberg | i mean even citric is | 07:33 |
| B0101 | and paracetic acid is made when H2O2 is added to CH3CO2H | 07:33 |
| azonenberg | Does it form spontaneously? | 07:34 |
| azonenberg | And yeah, i could see that | 07:34 |
| azonenberg | you're basically oxidizing the acetic | 07:34 |
| Action: B0101 consumes lozenge after lozenge of "fisherman's friend" | 07:39 | |
| B0101 | hmm... HF is banned now??? darn | 07:44 |
| azonenberg | B0101: where | 07:45 |
| azonenberg | they sell it in the grocery store here | 07:45 |
| azonenberg | its only 2-3% concentration but thats enough for what i do | 07:45 |
| B0101 | they banned it everywhere and all products containing them have been recalled | 07:46 |
| azonenberg | everywhere meaning singapore? | 07:46 |
| B0101 | yup | 07:46 |
| azonenberg | Enjoy | 07:46 |
| azonenberg | there's not really any substitute for it | 07:46 |
| azonenberg | when doing oxide etching | 07:46 |
| azonenberg | Can you still get it through lab supply channels? | 07:46 |
| azonenberg | i imagine its only banned for consumer use | 07:47 |
| azonenberg | Of course you dont want to be stuck unable to buy anything but 49% | 07:47 |
| azonenberg | i would not want to be anywhere near that without more proper equipment than i have now lol | 07:48 |
| B0101 | they will allow HF through supply channels but they will need 2 weeks to verify me being in a company with a license | 07:48 |
| azonenberg | Are you? | 07:48 |
| B0101 | i am | 07:49 |
| azonenberg | So its a hassle but won't make you totally unable to get work done | 07:49 |
| B0101 | yup | 07:49 |
| B0101 | I am thinking of joining a school as a lab technician though | 07:50 |
| azonenberg | So you can use their lab off hours? | 07:50 |
| B0101 | not really, but I want to join a school as LT as like like teaching chemistry | 07:52 |
| azonenberg | Oh | 07:52 |
| azonenberg | i see | 07:52 |
| B0101 | I fondly remember those times where I was doing chemistry in my school lab | 07:54 |
| B0101 | well i got into chemistry because of electronics though | 07:56 |
| azonenberg | i see | 07:56 |
| azonenberg | Same with me, except i didnt get in as deep lol | 07:56 |
| B0101 | well, back then, i wanted to make a PCB, and i found out i needed a chemical to etch it | 07:57 |
| B0101 | so I learned chemistry to try to make a chemical to etch it (I didn't know what was Ferric Chloride that time) | 07:58 |
| azonenberg | Yeah | 07:59 |
| B0101 | i got very interested and decided to persue chemistry | 07:59 |
| B0101 | but I became a programmer because i got interested in programming | 08:00 |
| azonenberg | i see lol | 08:00 |
| B0101 | now, i am going to do something related to chemistry as a job | 08:00 |
| azonenberg | i was the opposite, i started out being interested in EE but didnt have enough equipment | 08:00 |
| azonenberg | so i got into software | 08:00 |
| B0101 | ah, i see | 08:01 |
| azonenberg | But then got into embedded systems and before long i was doing hardware again | 08:01 |
| B0101 | lol | 08:01 |
| B0101 | well, at least you know both hardware and software now | 08:02 |
| azonenberg | Lol yeah | 08:02 |
| azonenberg | also in case you're interested http://cmosfold.blogspot.com/ | 08:02 |
| azonenberg | This is my collaborator out on the west coast that i work with | 08:02 |
| azonenberg | more on reverse engineering than fab | 08:03 |
| B0101 | oh ok | 08:04 |
| B0101 | NIVIDIA RIVA 128? wow | 08:04 |
| azonenberg | That blog is mostly chips he randomly opened up and looked at | 08:04 |
| azonenberg | and is almost all ones that are out of copyright | 08:04 |
| azonenberg | We do a lot more recent stuff since we're interested in security/crypto | 08:04 |
| azonenberg | but dont post most of that publicly | 08:04 |
| B0101 | ok | 08:05 |
| azonenberg | we're working on one in particular that we may do a writeup on once we pwn it | 08:05 |
| B0101 | ok | 08:06 |
| B0101 | oh wow, turns out my old system is using a NIVIDIA RIVA 128 | 08:08 |
| azonenberg | lol | 08:09 |
| azonenberg | Well if you've ever wanted to see one naked, now you can | 08:09 |
| B0101 | heh | 08:10 |
| azonenberg | if you click on the pic it should give more details on the sample and a link to a high-res scrollable image | 08:10 |
| B0101 | ok | 08:10 |
| B0101 | gosh, I see pony videos everyone on youtube! | 08:36 |
| B0101 | it seems like the whole youtube is linked to them | 08:37 |
| --- Wed Mar 14 2012 | 00:00 | |
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