These chips are smaller than a centimeter-by-centimeter square, yet they can hold millions of transistors. If one person sat down to build all those miniscule parts and then connect them ...

The boundary between these two kinds of semiconductors is known as a P-N junction, and it's a crucial part of a transistor. In the presence of this junction, current can start to flow from one ...

We won't go into the intricate details of how transistors work physically in this article, but we'll touch on it in Part 3 of the series. A logic gate is a simple device that takes inputs ...

It would however be improper to round off the series without also admitting that bipolar transistors are only part of the story. There is another family of transistors which have analogous circuit ...