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Semiconductor Fiber Optics

XSOF™ designs and manufactures cutting-edge fiber optic assemblies solving the most difficult problems for many of the world’s top Semiconductor companies.

Fiber-optic assemblies for applications in Semiconductor fabrication are mostly related to QA, process control, and energy routing on wafer-etch tools. The fibers are used to perform many different types of Optical Emission Spectroscopy (OES) on the etch plasmas or Interferometric End Point detection, but can also be used to route optical energy as needed to create other necessary effects within the tool.  In short, there are many applications for fiber optics on these tools.

Fiber-optic assemblies for semiconductor applications can take many forms and accomplish various tasks including:

  • Combining OES and IEP in a specialized fiber assembly
  • Reflectometry and Fluorescence measurement
  • Ellipsometry and Tiltometry
  • Dual arrays for simultaneous detection of 2 channels
  • Energy Routing and Distribution
  • Specialized mappings
  • High temp Ends, Vacuum Feedthroughs
  • High temp non-conductive plastic formed cables and end fittings
  • Fiber cables with pointing error specifications
  • Hybrid FO and electronic cables
  • Tolerances (centration, PE, locational for arrays, arrays in particular), and “plug and play”
  • Solarization Resistant and deep UV fibers

We specialize in customized assemblies, each suited to the customer’s specific needs. Whatever the requirements, we always strive to exceed customer expectations.

Don’t see what you’re looking for?

XSOF™ is an ISO 9001-certified manufacturer of specialty fiber optic assemblies. We know what matters to our customers and how to get it done with the quality they expect. Even if you don’t see what you’re looking for here, don’t hesitate to contact us with your fiber optic needs. We always welcome the opportunity to take on new challenges in our field, making the nonstandard standard by giving you exactly what you need.


Quality is paramount to everything XSOF™ does. In every step of the design and manufacturing process, we integrate our Quality Assurance Program to guide our operation. We hold ISO 9001:2015 conformance certifications for both XSOF™ East & West locations.

About Us

XSOF™ is a team of scientists, technologists, engineers, and business professionals all dedicated to manufacturing innovative fiber assemblies and developing custom solutions for a wide range of applications. We bring decades of experience to craft the perfect resolution to any challenge our customers bring.