Originally Posted by ERD50
It also does not appear that any knowledge of quantum physics played into it (or I just am not aware of such), at least from these descriptions, it seems they were investigating the properties of these materials. More like good old lab work than real theoretical stuff?
Solid state physics is built on quantum theory. Shockley and his colleagues were all solid state physicists and so completely immersed in quantum theory. The transistor was the product of a lot of theory, it's not like Edison trying out thousands of filaments. To come up with the right P-N junction the maths (ie quantum theory) had to be done first.
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