Manufacturing and sales of quartz glass. We can process glass as you wish. 日本語サイト

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1. Kind of the quartz glass. We can provide any quartz glass as you wish.
Manufacturing method Feature and maker name
Type@  Natural electric melting OH density is low and have high thermostability, it is suitable for more than 1000℃.
  GE 124     OS 25S
TypeA・B Natural oxyhydrogen melting For less than 1000℃. It is suitable for optical purpose because of very little bubbles.
  Tosoh N    Shinetsu HX    Toshiba T-1030
TypeC Synthesis hydroxy gen hydrolysis High purity and suitable for optical purpose. It is good for window, and lens.
  Tosoh ES
In addition, we can provide low alkali products for semiconductor jig.
2. Purity.  It is just representative figure and not guarantee level.
  Al Ca Cu Fe Na K Li Mg Mn OH  
Type@ 15 0.6 0.01 0.2 0.5 0.6 0.1 0.1 0.05 10 (ppm)
TypeA 8 0.6 0.01 0.2 0.8 0.2 0.5 0.1 0.05 200 (ppm)
TypeB 14 0.5 0.02 0.4 0.8 0.6 0.4 0.1 0.1 150 (ppm)
TypeC 0.1 0.1 0.01 0.05 0.05 0.05 0.05 <0.01 <0.01 <0.01 (ppm)
3.Electrical property
Dielectric constant ε   3.9 ( 1kHz 〜 10kHz )
Dielectric loss tanδ 0.001 ( 1kHz ) 〜 0.005 ( 1MHz )
4. Transmittance
@Anhydrous fused quartz glass which has good permeability to an infrared level from 200nm to 3,500nm.
A・BFused quartz glass which has good permeability from the ultraviolet area from 200nm to 2,500nm. (which does not absorb in 240nm area)
CSynthetic quartz glass which has high purity and non fluorescence and with good ultraviolet permeability. It is available from 190nm of far ultraviolet region to 2,000nm of far-red level.

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