1. The most precious invention in modern world
Semiconductor

2. Outline
1. Introduction of semiconductor
2. Amplifier
3. Transistor

3. What is semiconductor
They are two types of semiconductor, one is the N- type semiconductor, and the other one is P-type semiconductor

4. What's the different between P and N type semiconductor

5. N-type semiconductor is made by 5A group element.
P-type semiconductor is made by 3A group elements.

6. Amplifier
1. Op 741
2. Most commonly use amplifier in lab.

7. Transistor

8. Transistor

9. Thank you for your listening