Koriyama Plant, Shin-Etsu Quartz Products Co., Ltd.Logo Koriyama Plant, Shin-Etsu Quartz Products Co., Ltd.

Intelligent Quartz



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  • Location 〒963-0725
    88 Kanaya-Kawakubo, Tamura-Machi, Koriyama City, Fukushima
  • Representative President: Toshiyuki Katou,Koriyama Plant Manager: Hiroyuki Nishimura
  • Foundation 1985
  • Capital 1 Billion Yen
  • Number of employees Not open to the public
  • Industry Ceramic, stone and clay products

Business Overview

Manufacturing, research and development of quartz glass products

Product / Commodity Name

Quartz glass for semiconductor industry applications, transparent quartz glass for optics, synthetic quartz glass form, transparent quartz glass for optical communication, transparent quartz glass for lamps etc

Licensing Status

* Quality Management System certification (ISO9001)
* Environmental Management System certification (ISO14001)

Message from a Representative

Shin-Etsu Chemical Co., Ltd. is a world leading supplier of semiconductor materials with cutting-edge technologies. Heraeus of Germany has a long history of over 160 years as a global manufacturer of special materials. Shin-Etsu Quartz Products Co., Ltd. was established on February 1972 as a joint venture between the companies.
Shin-Etsu Chemical possesses application development technologies the company has offered to various fields while Heraeus owns high-tech quartz glass technologies. We at Shin-Etsu Quartz combine these technologies to offer customers quartz glass, as high-tech materials, for cutting-edge technology fields including semiconductor and LCD manufacturing processes, optical fibers, etc, contributing to evolution and development of said fields.
21st century is considered to be an era in which IT revolution will give you a new sense of appreciation for quartz glass, and its possibilities will be endless in the century as materials indispensable for the information technology field. Shin-Etsu Chemical, as a manufacturer of quartz glass, develops and offers satisfying high-quality products using our outstanding technologies and strives on to be one of the pioneers in the world, in the future.

Technology You Want to Offer

Quartz glass is a material with a combination of superior characteristics including (1) high purity, (2) superior high temperature stability, (3) superior light transmittance etc.

(1)Quartz glass has an extremely high purity. In the semiconductor production process, wherever higher integration occurs, even the smallest microscopic impurities are unwanted. Thus, for the quartz glass used in reaction chambers and other parts of the production process, the requirements for purity are extremely strict. Shin-Etsu Quartz Products Co., Ltd. has consistently pursued the development of products of even higher purity. As well as its high-purity transparent quartz glass from which alkali metallic impurities have been removed, the company has also developed an ultra-pure synthetic quartz glass for next-gen devices.

(1)Quartz glass has a combination of superior stability at high temperature properties with an extremely low thermal expansion coefficient. In the high-temperature processes employed in the manufacture of semiconductors, including the heat treatment process, quartz glass is widely used, as a material with high heat-resistant shape stability characteristics, for furnace tubes, boats, and so on.

(2)Compared to ordinary glass types, transparent quartz glass has light-transmittance characteristics that are extremely high over all wavelengths, from ultraviolet to infrared. Thus this quartz glass is used as lens material for exposure devices, for optical fiber, and as a material for lamps. Especially in the short-wavelength ultraviolet ranges, quartz glass shows superior transmittance characteristics not achievable by any other type of glass.