Question
Download Solution PDFIn a transistor, the _______ region is the widest and the _______ region is the thinnest of all.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- In a transistor, the collector region is the widest, while the base region is the thinnest.
- This structure allows for efficient operation of the transistor, where the base controls the current flow between the emitter and collector regions.
- The Collector region is kept the largest so as to be able to fast dissipate the heat produced due to the collector current flowing through it.
- The large area is also required to accommodate the wide space charge region due to reverse biased CB junction.
- The emitter region is heavily doped, so not much of the space charge width is in the emitter region.
- Also, the EB junction is forward biased which further eliminates the need to have a large emitter area.
- Highly doped
- medium area
- Moderate doping
- largest area
- lightest doping
- lightest area
Additional Information
Notes: Transistor has three regions:
Emitter:
Collector:
Base:
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