Our Quality Policy:

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

Our Environmental Policy:

Sumika Electronic Materials, Inc. seeks to provide products that meet our customer’s, employee’s and the community’s environmental expectations.  As an ISO 14001:2004 certified supplier, our company seeks to conduct our operations in an environmentally responsible manner and create a work environment that enables our employees to work injury-free.  This is consistent with our values and is integral to our continual improvement.

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).

Company Snapshot:

Basic Information:

Sumika Electronic Materials, Inc. is a wholly owned subsidiary of Sumitomo Chemical Co. Ltd. located in Phoenix Arizona. In 2003, Sumitomo Chemical Co., Ltd. purchased the assets of ATMI’s GaAs epiwafer business and formed two new companies in Japan and the U.S. to strengthen its position in the market. Sumika Electronic Materials has been chartered to serve the global Semiconductor, Electronics, and IT-related industries.

Manufacturing Snapshot:

  • 50,000 sq. ft facility, 6000 sq. ft. clean room
  • Development and Production of Epitaxial Wafers for HBT, pHEMT, LED, Diode, and Solar Energy Applications
  • PES Grinding for the Composites Industry

Development and Sales:

Sumika Electronic Materials, Inc. also handles Sumitomo Chemical’s IT-Related Businesses for the Americas Region. This includes the selling and distribution of:

  • SEP Materials
  • Photoresist Resins and Chemicals
  • Epitaxial Wafers
  • Polarizing Films

Recent News:


Our Parent Company: