Epitaxial Products

Drawing on our experience and the process technology developed at our sister facilities in Japan, Sumitomo Chemical Advanced Technologies is able to offer the following epitaxial products:


Utilizing Sumitomo Chemical’s advanced technology including a high room temperature mobility (>8,000 cm2/Vs) and a highly resistive O-doped buffer, our company’s products are excellent for high performance switch and PA applications.


Sumitomo Chemical Advanced Technologies has a long history of InGaP HBT production with qualified customers around the world. Characteristics of our material include:

  • Excellent reliability
  • Stable device characteristics both across a wafer and from wafer-to-wafer
  • High gain/Rb
  • High voltage products are available


Suitable for high levels of integration, BiHEMT products manufactured in Chiba, Japan, are now being shipped in production quantities.

LEDs (GaAs-based):

Our experience and quality has allowed Sumika to become the leading supplier of epitaxial wafers for LED print head applications.


Sumitomo Chemical Advanced Technologies is a leading supplier of epitaxial wafers for a variety of applications including PIN Diodes, Schottky Diodes, Hyperabrupt Varactor Diodes, and Gunn Diodes.

Optical Devices:

Our products for optical applications include VCSELs, edge-emitting laser diodes, and solar cells (both GaAs and Ge based).

For more information on Compound Semiconductors contact:

Ken Campman
Vice President
Phone: (602) 659-2529