SEH America Mission

Be the world leader in silicon wafer manufacturing by exceeding our customers’ expectations through continuous improvements in the quality of our products and services.

Quality Objectives

Commitment to:

  • Achieve our business needs in accordance with SEH Corporate directives and QMS standard.

  • Continuous improvement

  • Empower employees to be responsible for quality

  • Work with our customers and suppliers to achieve reliable quality products and services

SEH is your source for Multiple Product
Solutions to your silicon needs.

We are an ISO 9001:2015 / IATF 16949:2016 certified manufacturer of silicon wafers for the semiconductor industry, providing a full range of product families.

For other products in the ShinEtsu group such as:

  • Compound Semiconductors
  • Rare Earth Magnets
  • Photoresists
  • Synthetic Quartz
  • Epoxy Molding Compounds
  • PVC
  • Silicones

Important Note: SEH-America is no longer accepting new business for 100mm wafers

Regarding Government Stay at Home/Shelter in Place Orders:

  • The Federal Department of Homeland Security has designated SEH America as a Critical Infrastructure Sector business which will stay open and continue making products to support Health Care, Military, Communications, Financial, Transportation and other critical industries.

  • If you require validation, please contact:
    • Please email or call the Human Resources Department at (360) 883-7053.
    • Outside normal business hours please call: (360) 883-7000.

For SEH America Employment Opportunities please use the following site:

    (Please copy the above text and paste it into the address bar of your browser)

For SEH America Sales inquiries:

  • Please contact Neil Weaver at (360) 883-7656