Si Window

Silicon is the principal component of most semiconductor devices, most importantly integrated circuits or microchips. Silicon is widely used in semiconductors because it remains a semiconductor at higher temperatures than the semiconductor germanium. Because of its low density (half that of Germanium or Zinc Selenide), Silicon is ideal for weight sensitive applications, especially those in the 3 – 5µm region. Density is 2.329 g/cm3 and Knoop Hardness is 1150, making it harder and less brittle than Germanium.
Factory Standard – Contact us for manufacturing limit or custom specifications.

  • Material: Silicon
  • Size: 5mm-400mm
  • Surface figure: l/10@633nm
  • Parallelism: 5″
  • Clear Aperture: >90% of central dimension
  • Antireflection Coating: @ 3-12 um
  • Surface Quality: 20-10


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