Semiconductor bingo

Exercise and reference answers

Clues and terms

1. Clue

   A vacancy that acts like a positive free particle.

   Item

   Hole

2. Clue

   Deliberately adding an impurity.

   Item

   Doping

3. Clue

   Pentavalent dopant giving an extra electron.

   Item

   Donor

4. Clue

   Trivalent dopant giving a hole.

   Item

   Acceptor

5. Clue

   A p-n junction with metal contacts.

   Item

   Diode

6. Clue

   Turns ac into one-directional voltage.

   Item

   Rectifier

7. Clue

   Runs in reverse breakdown to regulate voltage.

   Item

   Zener

8. Clue

   Converts electrical energy into light.

   Item

   LED

9. Clue

   Lists every input and output of a logic gate.

   Item

   Truth table

Instructions

Read each clue and tap the term it describes.

Explanation