onsemi Project Experience

Challenge

onsemi, a leading global supplier of semiconductors, provides cutting-edge solutions for power management, sensors, and connectivity across industries such as automotive, industrial, and consumer electronics. To stay competitive and meet growing market demands, onsemi’s facilities in the Northeast U.S. required significant upgrades to enhance operational efficiency and support advanced manufacturing processes.

Solution

Phase 1 & 3 Cleanroom Conversions
We worked with owner to renovate two datacenters to raised floor cleanrooms to support new wafer probing and inspection tools. We were the lead design firm for the work, it included HVAC, electrical and process gases. The retrofit nature of the work gave us some unique challenges with respect to the HVAC and we deployed a combination of packaged air handling units and fan filter units with house air handling air to meet the recirculation, pressurization, and temperature control requirements. This project’s execution partner is PC Construction.

Spent Sulfuric Acid Equipment Replacement
We are working with the owner to replace an existing chemical distribution unit handling high concentration acids with a new, more expansive system of a valve manifold box, a chemical distribution unit, and new controls. This project includes new concrete supports for the relocated tanks, a new sump box for overflow piping, a replacement programmable logic controller, new containment piping, and extended containment piping. This project’s execution partner is PC Construction.

Jacket Cooling Water Expansion
Part of the Phase 2 and 3 gap analyses we provided and the owner’s long-term planning indicated a need to increase the jacket cooling water flow in B323 significantly. We completed a study to evaluate different options to install new jacket water cooling equipment and piping in the existing sub-fab which concluded in March 2023. We are poised to start detailed design of the owner-selected option.