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5 votes
2 answers
702 views

Inside a 2N3904 transistor TO-92 package

I cracked open this 2N3904 transistor. I lack the means to test its function until tomorrow. The die doesn't look like anything I've ever seen before. I'm not quite sure where the silicon is. In your ...
Aaron Butkovich's user avatar
5 votes
1 answer
210 views

Identification of bipolar transistors on die (pnp or npn?)

is it possible to tell from this photograph whether the transistors are npn or pnp? And if so, what is the line of reasoning? How to sort that out? This photo I took is from a Sharp GP1FAV51RK0F ...
DrSvanHay's user avatar
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