SUMCO
# SUMCO

SUMCO Corporation (株式会社SUMCO, Kabushiki-gaisha Samuko, formerly Silicon United Manufacturing Corporation and Sumitomo Mitsubishi Silicon Corporation) is a Japanese semiconductor company, manufacturing silicon wafers for semiconductor manufacturers worldwide. The company was established in 1999 as a joint venture between Mitsubishi Materials Corporation and Sumitomo Metal Industries and as of 2013 is the second largest silicon wafer producer in the world, after Shin-Etsu Handotai, with a market share of 30%.

SUMCO is listed on the first section of the Tokyo Stock Exchange and is a constituent of the Nikkei 225 stock index.

## Products

The company manufactures the following products:

* Single crystal silicon ingots
* Polished wafers
* Annealed wafers
* Epitaxial wafers
* Junction isolated wafers
* Silicon-on-Insulator (SOI) wafers
* Reclaimed polished wafers
