In 2004, Sumika Electronic Materials purchased epiwafer manufacturing equipment from a major semiconductor manufacturer. The transaction enabled Sumika to add to their current HBT (Heterojunction Bipolar Transistor) and diode product lines and provided a second site to produce pHEMT’s (Pseudomorphic High Electron-Mobility Transistor) to complement Sumitomo Chemical’s Japanese facility (Sumika Epi-Solution Co., Ltd.).

Assets including two MOCVD (metal organic chemical vapor deposition) systems have been transferred to the Sumika facility and several qualifications have been completed. With the addition of these assets, Sumika will be able to commercialize new pHEMT technologies.

Sumika Epi-Solution, Co., Ltd., is the Japanese market leader in pHEMT switches. This latest transaction also increases our total capacity worldwide and provides dual production sites for both product lines.

III-V compound semiconductors like GaAs are used in a variety of wireless and high-speed applications including power amplifiers and switches for the cellular phone and other mobile communications markets.

Our Quality Policy: Sumika Electronic Materials is committed to exceeding customer expectations by delivering the highest quality cost efficient products on time. Sumika Electronic Materials will pursue continual improvement by promoting an environment that values and develops its people and business processes with active support from top management.

About Sumitomo Chemical:

The Sumitomo Chemical Group includes some 100 companies operating around the world in six business sectors: basic chemicals, petrochemicals and plastics, fine chemicals, IT-related chemicals, agricultural chemicals, and pharmaceuticals. The IT-Related Chemicals Sector comprises the following three divisions: Optical Materials Division (e.g., optically functional films for liquid crystal displays), Semiconductor Process Materials Division (e.g., high-purity chemicals for the electronics industry, photoresists for IC manufacturing), and Electronic Materials Division (e.g., epoxy resins for IC encapsulation, super-engineering plastics for key electronic components).