Si & Ge Blanks
Silicon and Germanium Lens Blanks: In-House Crystal Growing from Boule to Machined Profile
Cimcoop grows high-purity monocrystalline silicon and germanium boules in-house using dedicated crystal growing furnaces. Boules are CNC machined into pre-generated blanks and custom profiles for infrared optics fabrication. Available as raw material, dimensionally machined substrates, or finished ready-to-polish blanks with standard crystallographic orientations. Full material certification including resistivity, orientation, and traceability from ingot to finished blank. This in-house crystal growing capability eliminates third-party material dependencies and ensures consistent optical-grade quality.
In-house Si and Ge boule production. CNC machined into blanks or custom profiles.
We run crystal growing furnaces in-house. High-purity monocrystalline Silicon and Germanium boules, CNC machined into pre-generated blanks and custom profiles built to your optical design.
Ship as raw material or machined to precise dimensions -- ready for your diamond turning or polishing. Standard crystallographic orientations. Full material certification and traceability included.
Technical Data
Specifications
Why It Matters
- In-house crystal growing furnaces -- no third-party dependencies
- CNC machining for precise dimensional control on blanks and profiles
- Standard crystallographic orientations for all materials
- Raw boules, pre-generated blanks, or machined to your spec
- Full material certification: resistivity, orientation, traceability
- Vertically integrated -- we can finish these into lenses in the same facility
- ISO 9001:2015 certified. Complete chain of custody.
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FAQ
Frequently Asked Questions
Does Cimcoop grow its own silicon and germanium crystals?
Yes. Cimcoop operates in-house crystal growing furnaces to produce high-purity monocrystalline silicon and germanium boules. This provides full control over material quality, resistivity, crystallographic orientation, and oxygen content from the ingot stage.
What forms are Si and Ge blanks available in?
Cimcoop supplies silicon and germanium as raw boules, sliced plano blanks, CNC-machined pre-generated blanks with specific radii, and custom-profile substrates machined to customer specifications.
Why does in-house crystal growing matter for optical quality?
In-house crystal growing eliminates supply chain dependencies and allows Cimcoop to control critical material parameters — resistivity, oxygen content, and transmission — from the melt stage. This ensures consistent optical-grade quality and full traceability that third-party material suppliers cannot guarantee.
Can Cimcoop finish blanks into completed IR optics?
Yes. Cimcoop is vertically integrated, so crystal-grown blanks can be diamond-turned, polished, coated, and metrology-verified in the same facility. Customers can order raw blanks for their own fabrication or fully finished optics.
Last Updated: March 2026
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