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| tutorial:tutorial_on_nitric_acid_epoxy_decapsulation [2012/02/21 02:05] – created mcmaster | tutorial:tutorial_on_nitric_acid_epoxy_decapsulation [2012/03/18 09:40] – azonenberg | ||
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| - | Likely nitrogen dioxide gas will form and the solution will turn green. Using the watch glass greatly helps in reducing fumes, but it is highly recommended to perform this in a well ventilated area. The solution will turn green from copper dissolving, such as on the carrier island. If you have copper top metal, you will need to add sulphuric acid to the mixture. | + | Likely nitrogen dioxide gas will form and the solution will turn green. Using the watch glass greatly helps in reducing fumes, but it is highly recommended to perform this in a well ventilated area or, ideally, a fume hood. The solution will turn green from copper dissolving, such as on the carrier island. If you have copper top metal, you will need to add sulphuric acid to the mixture. |
| Depending on how large of a chunk you have, acid concentration, | Depending on how large of a chunk you have, acid concentration, | ||