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Automotive semiconductors and sensors from Bosch

The Bosch wafer fab in Roseville

Wafer fab Roseville

The Roseville plant, acquired by Bosch in 2023, is the latest addition to our global semiconductor manufacturing network. Starting in 2026, the site will produce and test silicon carbide (SiC) semiconductors on 200-millimeter wafers – key building blocks for electrified mobility. This location reinforces Bosch’s existing semiconductor business and extends our international manufacturing network.

Key facts

Technology

200mm silicon carbide (SiC) wafer production

Products

Power semiconductors

Applications

Components for mobility, including inverters and charging converters for electric vehicles; future business areas include energy and telecommunications

Clean Room Area

~130,000 square feet

Vast expertise in semiconductor production

Now as part of Bosch, the Roseville location, which has existed for more than 40 years, is expanding its manufacturing expertise and advancement. New cleanroom spaces and equipment are complemented by associates’ deep knowledge and process innovation required for SiC production, positioning Bosch at the forefront of this growing technology.

  • State-of-the-Art Manufacturing Technology: Our Roseville facility leverages cutting-edge semiconductor fabrication equipment, enabling high precision, scalability, and efficiency for advanced automotive applications, ensuring superior quality and reliability in every chip produced.
  • Real-Time In-Line Metrology and Advanced Process Control: Integrated metrology systems continuously monitor critical parameters during production, allowing real-time adjustments and advanced process control to maintain tight tolerances, optimize yield, and ensure consistent product performance.
  • In-House Wafer Sort and Final Test Capability: The facility includes comprehensive wafer sorting and final testing operations, ensuring complete quality assurance, faster turnaround, and streamlined logistics for delivering fully validated semiconductor products to customers.
The front of a new ion implant tool inside the cleanroom of a semiconductor manufacturing facility.
New manufacturing equipment has enabled Bosch to transform its Roseville site into a silicon carbide (SiC) production facility.
A worker testing system in the sub-fab of a semiconductor manufacturing facility.
The advanced infrastructure and systems at the Roseville site are continuously monitored to ensure high-performance manufacturing operations.
Employees viewing computer screen in modern office space at semiconductor manufacturing facility.
Collaboration among associates is key to Bosch’s innovation and quality for silicon carbide (SiC) production at the Roseville site.
Polycrylic model of car with silicon wafer, etched with image of the state of California.
The Roseville site is Bosch’s first semiconductor manufacturing facility in the U.S., extending the company’s international manufacturing network.
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Innovative silicon carbide (SiC) technology

As Bosch’s first semiconductor manufacturing site in the U.S., Roseville is being transformed into a new production facility for SiC semiconductors. These powerful and extremely efficient chips are installed wherever electricity is converted – in electric vehicles, for example – delivering a range of benefits for OEMs and other customers.

  • Start of production: 2026

Working at the Roseville plant

If you’re interested in working on the cutting-edge of technology – specifically silicon carbide semiconductor production – Bosch Roseville is the place for you. Our site is transforming into a high-tech workplace within a large global company where you can:

  • Grow into countless new roles, positions and opportunities, together with supportive colleagues.
  • Enjoy the benefits of balancing your life and your job environment and rewards to make it all worthwhile.
  • Inspire a better today and tomorrow by staying true to your values and creating future with one another.
Discover our job offers
Become part of our team and shape the future with us. We offer you attractive opportunities for the next step in your career.

A strategic location in the U.S.

Bosch’s Roseville plant is uniquely positioned in Northern California, offering proximity to major technology hubs, strong educational institutions, and a highly skilled workforce. Known for its semiconductor experience, expertise, and innovation, this location establishes advanced manufacturing capacity for SiC chips in an important sales market for Bosch.