Name the process involved in the formation of p-n junction diode.

Explanation

To answer the question regarding the process involved in the formation of a p-n junction diode, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Doping of Semiconductors**:
- The formation of a p-n junction begins with the doping of pure semiconductor material (usually silicon).
- Doping introduces impurities into the semiconductor to create two types of regions: p-type and n-type.

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