this is a 3-pin bi-color LED that's been sanded down so you can clearly see the lead frame and LED chips.pic.twitter.com/p2Y15iph5m
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tried a suggestion from @tradica and put a little oil on it to clear up the surface a bit. it helped a bit, but now there are tiny bubbles.
pic.twitter.com/zEhPr6OSer
wow, this bi-color LED is even more beautiful from a slightly different angle!pic.twitter.com/pY0NRJ4Qih
shouldn't be. they're from different wafers for sure.
It's interesting that they're called dies, isn't it doped silicone? A die implies a pigment is in use?
Singluar of "dice"; not related to "dye" (a coloring agent.)
I wondered that also
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