TRANSISTOR

In electronic,transistor is a semiconductor device commonly used to amplify or switch electronic signals. The transistor is the fundamental building block of computers, and all other modern electronic devices. Some transistors are packaged individually but most are found in integrated circuits.

Contents

• 1 Introduction
• 2 History
• 3 Importance
• 4 Comparison with vacuum tubes
  • 4.1 Advantages
  • 4.2 Disadvantages
• 5 Types
  • 5.1 Bipolar junction transistor
  • 5.2 Field-effect transistor
  • 5.3 Other transistor types
• 6 Semiconductor material
• 7 Packaging
• 8 Usage
  • 8.1 Switches
  • 8.2 Amplifiers
  • 8.3 Computers
• 9 See also
• 10 References
• 11 Further reading
• 12 External links
  • 12.1 Datasheets
  • 12.2 Patents
    
  From:Wikipedia ,the free encyclopedia