← 4.1 Semiconductor Theory

Why silicon is the electronics material

Electrical Technology · Grade 10 · about 40 minutes

Silicon from silica (sand): abundant, cheap, stable, and better than germanium for most devices.

Sign in to read this lesson

Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.

  • 7 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
  • Your progress kept across every subject you take
Sign in Create an account