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Questions and Answers
Which technique is used for single crystal growth of semiconductors?
Which technique is used for single crystal growth of semiconductors?
- Vapor phase epitaxy technique
- Zone melting technique
- Bridgman technique
- Czochralski technique (correct)
Which element has replaced germanium (Ge) as the most widely used semiconductor material?
Which element has replaced germanium (Ge) as the most widely used semiconductor material?
- Gallium (Ga)
- Arsenic (As)
- Silicon (Si) (correct)
- Phosphorus (P)
In which column of the periodic table are semiconductor elements located?
In which column of the periodic table are semiconductor elements located?
- Sixth
- Fifth
- Third
- Fourth (correct)
Which type of semiconductor has carrier density dependent on temperature?
Which type of semiconductor has carrier density dependent on temperature?
What is the most common semiconductor material used in integrated circuits and discrete devices?
What is the most common semiconductor material used in integrated circuits and discrete devices?
What is the crystal structure of semiconductors?
What is the crystal structure of semiconductors?
Which technique is commonly used for single crystal growth of semiconductors?
Which technique is commonly used for single crystal growth of semiconductors?
What is the intrinsic Fermi-level in semiconductors?
What is the intrinsic Fermi-level in semiconductors?
What type of semiconductor has carrier density dependent on temperature?
What type of semiconductor has carrier density dependent on temperature?
What is the technical reason for silicon replacing germanium as the most widely used semiconductor material?
What is the technical reason for silicon replacing germanium as the most widely used semiconductor material?
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Study Notes
Semiconductor Basics
- Semiconductors are typically grown using the Czochralski technique for single crystal growth.
Semiconductor Materials
- Silicon (Si) has replaced Germanium (Ge) as the most widely used semiconductor material.
- Silicon replaced Germanium due to its better oxide quality and higher purity, leading to improved semiconductor performance.
Periodic Table Location
- Semiconductor elements are located in Group IV of the periodic table.
Intrinsic Semiconductors
- Intrinsic semiconductors have a carrier density dependent on temperature.
Integrated Circuits and Discrete Devices
- Silicon (Si) is the most common semiconductor material used in integrated circuits and discrete devices.
Crystal Structure
- Semiconductors have a diamond cubic crystal structure.
Fermi-Level
- The intrinsic Fermi-level in semiconductors lies at the middle of the bandgap.
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