Semiconductor Fabrication Building


Gephart was selected by Knutson Construction Services for this confidential design-build project of an 80,000 SF semiconductor fabrication facility. The manufacturing space included 10 cleanrooms and support areas and expanded the Owner’s ability to produce miniature silicon wafer sensors that are used across the company’s aerospace sensor-based products and systems.


The nature of this project called for Gephart to be a team player in the truest sense of the phrase. Even before the building closure and commencement of cleanroom activities, BIM modeling had to be done for all penetrations through walls/floors, hanger embed locations for pipe-rack system and all electrical gear (switchgear, panels, transformers, etc.) with required clearances. Also, coordination with other trades was a must throughout the project as multiple trades needed to utilize the same small spaces throughout the facility. Our frequent communication with all of the modelers involved resulted in few to no conflicts amongst the trades.


Gephart got started right away with VE suggestions regarding feeders and grounding that led to significant savings for the Owner. We also rose to the challenge of creating our own Tool Matrix detailing the specifications and locations of the manufacturing tooling. This was crucial as there were frequent updates during the tooling installation requiring us to be very flexible and continue to contribute to the design work. The end result was much more accurate construction documents and as-builts than the Owner would have had without our involvement.


Gephart was instrumental in this project meeting the Owner’s schedule and budget. A portion of that success was due to our ability to practice clean construction methods throughout the job. From electricians wearing boot covers, hard hat covers, smocks and rubber gloves to our crews conscientiously wiping down every single piece of material and equipment used in the work areas, Gephart was able to prevent any delays due to contaminated cleanrooms.


  • Interior and exterior building lighting
  • Parking lot lighting
  • Lighting and dimming systems
  • Computer/telephone raceway systems
  • Electrical distribution system
  • Low-voltage systems rough-in
  • Security & surveillance rough-in
  • Emergency power system
  • Emergency systems
  • Switching system
  • Fire alarm
  • Emergency generator
  • Grounding system
"I have had nothing but a positive working relationship with Gephart on this project. Their work has been exemplary. They have performed in a very efficient and professional manner. I would be glad to work with Gephart on future projects and would recommend them to others."
Chris Lyles, Project Manager, Knutson Construction