Contact Service

Service Request

YES is dedicated to serving our customers. We offer spare parts, phone support and field service visits.

If your system requires parts, please have your system serial number ready and contact our field service department for assistance.

YES systems are built to last decades in the cleanroom. In the event that your system requires a visit from a field service technician, we can arrange a visit to your cleanroom.

Phone support is available for basic questions about a YES system you currently own. Have the serial number handy when you call. Use one of the numbers to the right or use the contact form to submit your service request:









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Contact Information

Yield Engineering Systems (YES)
203-A Lawrence Drive
Livermore, CA 94551-5152 USA

US Toll Free: 1-888-937-3637
International: +1-925-373-8353
E-mail: sales@yieldengineering.com

News & Updates

  • October 23, 2017 - YES is exhibiting at two upcoming trade shows promoting the benefits of dielectric vacuum cure ovens in FOWLP.
    Read more »
  • June 30, 2017 - YES Will Be an Exhibitor and Sponsor at Microelectronics Tradeshow
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  • May 5, 2017 - YES CEO to Participate as a Panelist
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  • January 20, 2017 - YES Highlighted in Online Commentary
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  • September 23, 2016 - YES Exhibiting at Two Upcoming Tradeshows
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  • August 9, 2016 - YES Featured in Two Trade Magazines
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Other Updates

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About Our Company

Located in Livermore, California, Yield Engineering Systems (YES) is a privately held company that manufactures engineering process control equipment to meet the needs of innovative engineers and lab managers.

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