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04.01.2017 00:00 - NQW`s announces two new major production contracts and succeful qualification

NQW a global wafer technology company, today announces that it has received two new major...

20.02.2016 00:00 - NQW today announced that it has a new geometry instrument and DIC microscope successfully installed.

NQW today announced that it has a new geometry instrument and DIC microscope successfully...

10.07.2015 13:49 - Lithium tantalate wafer - New CMP & Reclaim Process

Lithium tantalate wafer in recent years, with the rapid development of communications, information...


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Fused Silica (SiO2) Wafer e.g. diffusor application

Fused silica is a noncrystalline (glass) form of silicon dioxide (quartz, sand). It lacks long range order in its atomic structure. Its highly cross linked three dimensional structure gives rise to its high use temperature and low thermal expansion coefficient.

This material is widely used in semiconductor, medical science, communications, lasers, infrared, electronics, measuring instruments, military, aerospace and others high-tech industry.

NQW materials from the major manufacturers in all grades and specifications. All fused silica offered by NQW is certified by the manufacturers.

Wafer Dimension

  • SEMI Wafer - 2" up to 300mm
  • square Wafer 10x10 mm up to 200 x 200 mm
  • Thickness 150m up to 2000m

Wafer Properties

  • Surface: single side polished, double sides polished
  • Good UV transparency
  • Very good chemical inertness
  • Other parameter are customized

Fused Silica Material

  • Corning: e.g. HPFS 7980, Eagle XG
  • Nikon
  • JGS1, JGS2, JGS3
  • Heraeus: e.g. Herasil

Application

  • High temperature lamp envelopes
  • Temperature insensitive optical component
  • Mirrors in highly variable temperature regimes
  • Microwave and millimeter wave components
  • Diffusor for Lighting



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