BOSCH acquires U.S. chipmaker TSI Semiconductors in Roseville

Greater Sacramento

Update: Bosch’s acquisition of TSI Semiconductors closed in August 2023. Learn more here.

BOSCH plans to invest $1.5 billion in semiconductor business for electromobility


  • Bosch chairman Dr. Stefan Hartung: “With this planned investment in the U. S., we are also increasing our semiconductor manufacturing, globally.”
  • Third pillar for semiconductor business: following Reutlingen and Dresden in Germany, Bosch will in the future also make chips in Roseville, California.
  • More chips: with the planned acquisition, 博世将在2030年底前大幅扩大其全球碳化硅半导体产品组合.
  • 电动汽车作为驱动力:SiC芯片可以实现更大的续航里程和更高效的充电.

Stuttgart, Germany – Bosch is expanding its semiconductor business with silicon carbide chips. The technology company plans to acquire assets of the U.S. chipmaker TSI Semiconductors, based in Roseville, California. With a workforce of 250, the company is a foundry for application-specific integrated circuits, or ASICs. Currently, 它主要开发和生产用于移动应用的200毫米硅片芯片, telecommunications, energy, and life sciences industries. Over the next years, Bosch intends to invest more than 1.在罗斯维尔工厂投资50亿美元,并将TSI半导体制造设施改造为最先进的工艺. Starting in 2026, 第一批芯片将在基于创新材料碳化硅(SiC)的200毫米晶圆上生产。.

In this way, Bosch is systematically reinforcing its semiconductor business, 并将在2030年底之前大幅扩展其全球SiC芯片组合. Above all, 随着全球电动汽车的蓬勃发展,对这种特殊半导体的需求也越来越大. 计划投资的全部范围将在很大程度上取决于通过CHIPS和科学法案获得的联邦资金机会以及加利福尼亚州的官方十大网投网址机会. 博世和TSI半导体已达成协议,不披露交易的任何财务细节, which is subject to regulatory approval.

“With the acquisition of TSI Semiconductors, 我们正在一个重要的销售市场建立SiC芯片的制造能力,同时也增加了我们的半导体制造, globally. 罗斯维尔现有的洁净室设施和专家人员将使我们能够更大规模地生产用于电动汽车的SiC芯片,” says Dr. Stefan Hartung, the chairman of the Bosch board of management.

“The location in Roseville has existed since 1984. Over nearly 40 years, the U.S. company has built up vast expertise in semiconductor production. 现在,我们将把这些专业知识整合到博世半导体制造网络中,” says Dr. Markus Heyn, 博世管理董事会成员兼移动解决方案业务部门主席.

“我们很高兴加入一家拥有广泛半导体专业知识的全球运营技术公司. 我们相信,罗斯维尔工厂将成为博世SiC芯片制造业务的重要补充,” says Oded Tal, CEO at TSI Semiconductors.

Acquisition of TSI Semiconductors creates new manufacturing capacity

罗斯维尔的新工厂将加强博世的国际半导体制造网络. Starting in 2026, following a retooling phase, 首批SiC芯片将在200毫米晶圆上生产,工厂产能约为10个,000 square meters of clean-room space. At an early stage, Bosch invested in the development and production of SiC chips. Since 2021, it has been using its own proprietary, highly complex processes to mass-produce them at its Reutlingen location near Stuttgart. In the future, Reutlingen will also produce them on 200-millimeters wafers. By the end of 2025, the company will have extended its clean-room space in Reutlingen from roughly 35,000 to more than 44,000 square meters.

“SiC chips are a key component for electrified mobility. By extending our semiconductor operations internationally, we are strengthening our local presence in an important electric vehicle market,” Heyn says.

Demand for chips for the automotive industry remains high. 博世预计,到2025年,每辆新车平均将集成25个博世芯片. 碳化硅芯片市场也在继续快速增长,平均每年增长30%. The main drivers of this growth are the global boom and ramp-up of electromobility. In electric vehicles, SiC chips enable greater range and more efficient recharging, as they lose up to 50 percent less energy. Installed in these vehicles’ power electronics, 平均而言,它们可以确保车辆在一次充电后行驶更长的距离, the possible range is 6 percent greater than with silicon-based chips.

Systematic investments in pivotal semiconductor technology

Semiconductors are key to the success of all Bosch business areas. The company recognized the potential of this technology early on, and has been producing semiconductors for more than 60 years. 博世是少数几家不仅拥有电子和软件专业知识,而且对微电子技术有着深刻理解的公司之一. 它可以将这种决定性的竞争优势与它在半导体制造方面的实力结合起来. 该技术和服务供应商自1970年以来一直在罗伊特林根制造半导体. They are used both in the automotive sphere and in consumer electronics. Modern electronics in vehicles is also the basis for reducing traffic emissions, preventing road accidents, and efficient powertrains. 博世位于德累斯顿的晶圆厂(300毫米晶圆)于2021年7月开始生产. 该晶圆厂投资近10亿欧元,是该公司历史上最大的单笔投资.

In its wafer fabs in Reutlingen and Dresden, Bosch has invested more than 2.5 billion euros in total since 200-millimeter technology was introduced in 2010. On top of this, billions of euros have been invested in developing microelectronics. Independently of the investment now planned in the United States, 该公司去年夏天宣布,将在欧洲的半导体业务上再投资30亿欧元, 这既是其投资计划的一部分,也是欧盟“欧洲共同关心的微电子和通信技术重要项目”计划的一部分.

Contact persons for press inquiries:

Tim Wieland
phone: +1 248 876-7708

About Bosch

Having established a presence in North America in 1906, today the Bosch Group employs nearly 37,000 associates in more than 100 locations in the region (as of Dec. 31, 2022). 根据2022年的初步数据,博世在美国的综合销售额为150亿美元.S., Canada, and Mexico. For more information visit, and The Bosch Group is a leading global supplier of technology and services. It employs roughly 420,000 associates worldwide (as of Dec. 31, 2022). The company generated sales of $93.1 billion in 2022. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. 博世集团的战略目标是通过包含人工智能(AI)或在其帮助下开发或制造的产品和解决方案促进互联生活. 博世通过创新的产品和服务,激发人们的热情,改善全球的生活质量. In short, Bosch creates technology that is “Invented for life.博世集团由罗伯特·博世有限公司及其在约60个国家的约440家子公司和区域性公司组成. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. With its more than 400 locations worldwide, the Bosch Group has been carbon neutral since the first quarter of 2020. The basis for the company’s future growth is its innovative strength. At 128 locations across the globe, Bosch employs roughly 84,800 associates in research and development, of which more than 44,000 are software engineers. 在北美,博世拥有约3500名研发人员.

Additional information is available online at,,,

Exchange rate: 1 EUR = 1.0538

在彭博社对博世管理委员会主席的采访中,您可以了解更多有关该投资和博世计划的信息, Stefan Hartung.

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