Sumika Electronic Materials, Inc. is a wholly owned subsidiary of Sumitomo Chemical Co., Ltd. In 2003, Sumitomo Chemical Co., Ltd. purchased the assets of ATMI's GaAs epitaxial wafer business (formerly Epitronics, which was founded in 1984). Sumika produces GaAs epiwafers and markets other Sumitomo Chemical IT-related products including semiconductor process materials and super engineering polymers.
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The Sumika Electronic Materials annual revenue was $11 million in 2026.
4 people are employed at Sumika Electronic Materials.
Sumika Electronic Materials is based in Phoenix, Arizona.
The NAICS codes for Sumika Electronic Materials are [32, 32521, 325, 3252].
The SIC codes for Sumika Electronic Materials are [28, 282].