Shin-Etsu Quartz Products
A Japanese maker of high-purity quartz glass that supplies diffusion furnace tubes and boats, quartz rings and windows for etch tools, and quartz crucibles for growing silicon crystals.
信越石英・Equipment parts and consumables・Last updated: October 27, 2026
Overview
Shin-Etsu Quartz Products specializes in high-purity and synthetic quartz glass. It supplies quartz tubes and boats for diffusion furnaces and quartz rings and windows for etch equipment, used where metal contamination must be avoided.
It also makes the quartz crucibles that hold molten silicon when single-crystal ingots are pulled by the Czochralski method.
Business: High-purity quartz glass parts and crucibles
Why it matters
- Quartz is used inside furnaces and plasma chambers because it is very pure and tolerates high temperatures.
- Crucible quality affects oxygen and impurity levels in silicon ingots.
Main products
- •Quartz tubes and boats for furnaces
- •Quartz rings and windows for etch equipment
- •Quartz crucibles for silicon crystal growth