Abstract
Another emerging technology which constitutes to progress beyond modern RESURF-based LDMOS transistors utilizes trench patterns. In this chapter the trench-based technology in LDMOS transistors is reviewed. First, the applicability of trench gates is motivated by a discussion on channel resistance. The impact of FinFET technology on lateral power transistors is investigated. To evaluate the feasibility of trench gates, device designs employing trench gates and their electrical properties under static and dynamic device operation are presented and discussed. Typical Figures-of-Merit obtained from these trench devices are compared to state-of-the-art LDMOS transistors. Considering the process technology, limitations for integration into smart-power ICs and RF amplifiers are also investigated.
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Erlbacher, T. (2014). Lateral Power Transistors with Trench Patterns. In: Lateral Power Transistors in Integrated Circuits. Power Systems. Springer, Cham. https://doi.org/10.1007/978-3-319-00500-3_7
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DOI: https://doi.org/10.1007/978-3-319-00500-3_7
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