When we study Electronics, we need to ask ourselves plenty of questions:
- Where do charge carriers come from?
- What types of charge carriers do we have?
- How can we modify the density of charge carriers?
- How do charge carriers move?
Author won't answer the questions mentioned above so readers need to solve them. But author is going to talk about "Why are holes slower than electrons".
We can understand what holes are in silicon from picture above. Then, we need to know that movement of holes is based on release and trap mechanisms and that is why.
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