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Electronics => Beginners => Topic started by: algorithm on June 22, 2022, 10:22:59 am

Title: Lithium on silicon?
Post by: algorithm on June 22, 2022, 10:22:59 am
So, replaced a transistor, but lacking proper heat sink compound I in my ignorance used the only grease I had, lithium. Only months later did I think "that might eat that". Will it eat that plastic encasement? If so what sort of time frame? Any hope of cleaning it off and applying proper grease? Or will that part be wanting to fail sooner than usual? like a loose bolt rubberless shopping trolley wheel. Replacing it isnt a big deal if so. Thanks
Title: Re: Lithium on silicon?
Post by: T3sl4co1l on June 22, 2022, 11:33:52 am
Plastic.... the transistor package you mean?  Nah it's epoxy, not much short of fuming nitric acid eats it.

FWIW, anything is better than nothing; lithium grease isn't the worst thing you could've put in there, and if it's not running near limits, it's probably fine.  (What's the worst thing, then?  Air!)

Tim
Title: Re: Lithium on silicon?
Post by: algorithm on June 22, 2022, 12:16:14 pm
Schwoo, thats a relief. I thought about that, but wasnt sure if the lithium could degrade it after enough time. But good point about the standard in decapsulation, I should have thought of that, because nobody decaps with lithium grease lol. Thanks for the confirmation t3sl4co1l