| B0101 | hi, for HF from rust remover, will impurities like Butyl Cellosolve and Nonyl Phenolethoxylate affect the chip in CMOS processes? | 12:29 |
|---|---|---|
| Sync__ | yes | 12:30 |
| Sync__ | anyting but metal free hf is bad | 12:30 |
| B0101 | so organic impurities aren't as bad as metal contaminants? | 12:31 |
| Sync__ | yes but you still want to get rid of anything organic | 12:32 |
| Sync__ | metal contamination will ruin your lifetime | 12:32 |
| Sync__ | which is your main enemy | 12:35 |
| B0101 | how high are the chances of organic compounds bonding to the wafer? | 12:41 |
| Sync__ | the problem more or less is that rust remover grad hf will not be metal free | 12:42 |
| Sync__ | and if it is not metal free it is of no use at all | 12:42 |
| B0101 | hmm, the MSDS and label's ingredients list shows no metallic compounds. So I'd have to test for metal compounds? | 12:44 |
| Sync__ | metallic compounds are not what you are after | 12:45 |
| Sync__ | trace amounts is what it is | 12:45 |
| Sync__ | and I'd really wonder if you get trace metal grade HF over the counter | 12:54 |
| B0101 | Over the counter? I wish... | 12:54 |
| B0101 | more like over the black market counter... | 12:56 |
| Sync__ | I guess it'd be easy enough to get hf imported from the us or something | 12:58 |
| B0101 | well, for the lab I work in, yes, but for personal use? In my dreams | 12:59 |
| Sync__ | just get someone in the us to send it to you | 12:59 |
| B0101 | It'll get intercepted in customs check | 13:00 |
| B0101 | Even chewing gum is banned here | 13:01 |
| B0101 | and I'd be lucky if the package passes the X-ray machine check | 13:01 |
| Sync__ | haha I'd move abroad | 13:02 |
| B0101 | Though for now, I have an idea | 13:08 |
| B0101 | Malaysia is connected to singapore by a bridge linking the 2 together | 13:08 |
| B0101 | I noticed that if you're on a family trip (with old folks and even children in the car), they don't even check your belongings and let you through | 13:09 |
| B0101 | maybe I can get a friend in Malaysia to send it to me on his next family trip | 13:10 |
| B0101 | oops... maybe I should have encrypted my chat session | 13:11 |
| B0101 | I don't know about the US but I highly suspect that every single phone call, internet search is intercepted by a live operator | 13:13 |
| --- Wed Mar 13 2013 | 00:00 | |
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