ELEX Solid State Devices 1

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Cards (82)

  • Valence electron of silicon. 4
  • Valence electron of indium. 3
  • It has negative temperature coefficient. Semiconductors
  • It involves metals and nonmetals. Ionic bond
  • It is the transfer of electrons. Ionic bond
  • Results from attractive forces between group of protons and a sea of electrons that are free to move about among its ion. Metallic bond
  • It involves metals only. Metallic bond
  • Results when atom share their valence electrons with other atoms. Covalent bond
  • It involves nonmetals or insulators only. Covalent bond
  • The strongest bond. Covalent bond
  • These are conductors in their purest form. Intrinsic materials
  • It acts more like insulators than conductors. Intrinsic material
  • Semiconductor materials with some impurities added to change its electrical properties. Extrinsic materials
  • The process of adding impurities. Doping
  • Formed by adding donor impurities. N-type
  • It is an example of N-type. Pentavalent impurities
  • Examples of pentavalent atom. Phosphorus, arsenic, antimony, bismuth
  • Majority carriers of an N-type is Electrons
  • Minority carriers of an N-type is Holes
  • Formed by adding acceptor impurities. P-type
  • Example of P-type. Trivalent impurities
  • Examples of trivalent atom. Boron, Indium, Gallium, Aluminum
  • Majority carriers of P-type is Holes
  • Minority carriers of a P-type is Electrons
  • The net charge of P-type and N-type is Neutral
  • When the P-type and N-type are brought together. It is also the boundary. PN Junction
  • The region where the positive ions and negative ions are located. Depletion region
  • The depletion region is like an Insulator
  • It is the amount of voltage required to move the electrons. Barrier potential
  • The barrier potential of Germanium is 0.3 V
  • The barrier potential of Silicon is 0.7 V
  • The barrier potential of Gallium Arsenide is 1.2 V
  • It is defined as a control voltage or current. Bias
  • It refers to the use of dc voltage to establish a certain operating condition for an electronic device. Bias
  • It is the condition that allows current through the PN junction to fflow. Forward bias
  • The depletion region in Forward bias narrows
  • When in forward biased, the diode acts as a closed switch
  • The positive terminal of battery when in forward bias, is connected to the P-type
  • It is the condition that essentially prevents the current through the diode to flow. Reverse bias
  • The current in reveres bias is Zero