7.0 Magnitude Earthquake Strikes Northern California, Impact on Semiconductor Wafer Fab Facilities

On December 5, a 7.0 magnitude earthquake struck off the northern coast of California, near the town of Redding. The earthquake, which occurred at a depth of 10 km, has triggered tsunami warnings along California's coastline, as well as parts of Oregon. The earthquake's impact on semiconductor manufacturing facilities is being closely monitored, as several major wafer fab plants are located in the affected region.

Key Semiconductor Plants in California and Oregon

1. Intel

   • Location: Folsom, Santa Clara (California), Hillsboro (Oregon)
   • Facilities: Intel has multiple fabs in the region, including D1C, D1D, D1X, and others in Oregon. Its Fab D1C and D1D in Oregon (300mm wafers) are crucial to its semiconductor production. The Santa Clara campus is Intel’s headquarters and houses several important facilities.

2. GlobalFoundries

   • Location: Santa Clara (California)
   • Facility: GlobalFoundries operates a significant foundry in Santa Clara, California. This facility may have been affected by the earthquake given its proximity to the epicenter.

3. Microchip Technology

   • Location: Gresham, Oregon
   • Facility: The Gresham fab, which manufactures 200mm wafers, is another important facility in the region that could experience disruptions due to the earthquake.

4. TSMC

   • Location: WaferTech, Oregon
   • Facility: TSMC's WaferTech in Oregon, established in 1995, is responsible for producing 8-inch wafers. While less likely to be directly impacted by the earthquake, the facility could experience logistical disruptions.

5. Analog Devices (ADI)

   • Location: Roseville, California
   • Facility: ADI’s Roseville fab, producing 150mm wafers, is located in a region that could potentially be impacted by seismic activity.

6. Infineon

   • Location: Temecula, California
   • Facility: Infineon operates a 150mm wafer fab in Temecula, which could be affected by the shaking from the earthquake.

7. TowerJazz

   • Location: Newport Beach, California
   • Facility: TowerJazz’s Newport Beach fab, producing 200mm wafers, could also experience operational disruptions due to the earthquake.

8. Skyworks

   • Location: Newbury Park, California
   • Facility: Skyworks' Newbury Park fab, focusing on compound semiconductor wafers, may face potential impacts due to proximity to the earthquake’s epicenter.

9. On Semiconductor

   • Location: Gresham, Oregon
   • Facility: On Semiconductor's fab in Gresham (200mm wafers) may experience aftershocks or infrastructure issues following the earthquake.

10. Maxim Integrated

    • Location: Beaverton, Oregon
    • Facility: Maxim’s Oregon fab, producing 200mm wafers, is another facility that could face disruptions from the seismic activity.

Key Factors for Potential Impact

• Proximity to Epicenter: The earthquake occurred near Redding, California, which is about 300 km away from major semiconductor hubs like Santa Clara and Folsom. Plants closer to the epicenter may face more significant structural damage or production delays.
• Infrastructure and Equipment: Semiconductor fabs are highly sensitive to vibrations. The delicate equipment and cleanroom environments can be disrupted by seismic activity.
• Energy Supply and Logistics: Earthquakes can disrupt power supply and logistics, causing potential delays in wafer production or delivery.

Response and Recovery

• Many semiconductor manufacturers in the affected regions have disaster recovery plans and are accustomed to dealing with such disruptions.
• Companies will likely begin assessments of the damage once aftershocks subside, and recovery timelines will depend on the extent of damage to facilities, equipment, and infrastructure.