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Raw material impact on the transition to 200mm SiC device production

In recent years the amount of available and suitable SiC substrates was limited and, hence, causing high effort to secure sufficient amount of raw material for the growth plans on 150mm device manufacturing. The transition to 200mm SiC device production has started and questions arise on the stable availability, the maturity, the price, the geopolitical situation for raw materials and the technological innovations around 200mm SiC raw material.

Certain raw material players are intensively focusing on the transition to 200mm, others are still busy with ramping up 150mm raw material manufacturing capacity. Defect density and material quality investigations show a correlation between the suppliers’ efforts on 200mm crystal growth development and the outcome. This allows to speculate and to set up a prediction on the raw material situation in the next 3-5 years.

Dr. Sigmar Schoser photo

Dr. Siegmar Schoser

Project Director Cooperation and external Sourcing

Bosch

After graduation in physics at the university of Constance and obtaining a doctoral degree from the university of Augsburg, Siegmar Schoser joined the Robert Bosch GmbH in 1998. With a broad field of experience in various positions in MEMS manufacturing, automotive customer project management for parking assist systems, senior management of ECU development for door and tailgate modules as well as blower controller electronics, he joined the power semiconductor and power module area of Bosch in 2012. Today he is directing a project team on cooperation and external sourcing with a strong focus on silicon carbide related topics.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 402,600 associates worldwide (as of December 31, 2021). The company generated sales of 78.7 billion euros in 2021. 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. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. 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 some 76,100 associates in research and development, of which more than 38,000 are software engineers.

The company was set up in Stuttgart in 1886 by Robert Bosch (1861–1942) as “Workshop for Precision Mechanics and Electrical Engineering.” The special ownership structure of Robert Bosch GmbH guarantees the entrepreneurial freedom of the Bosch Group, making it possible for the company to plan

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