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QuaSiC Smart-Cut~(~R) Substrates for SiC High Power Devices

机译:用于SiC高功率器件的QuaSiC Smart-Cut〜(〜R)基板

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摘要

Metallic wafer bonding between SiC wafers and transfer of high quality 4H SiC thin film using the Smart-Cut~R process is demonstrated. These substrates, developed for vertical SiC power devices applications such as Schottky diodes, involve metallic wafer bonding between SiC wafers as well as transfer of high quality thin film onto low cost SiC substrates. These substrates are called QuaSiC substrates. CVD SiC epitaxial regrowth compatibility at 1450℃ as well as first bonding interface electrical transparency by I(V) were verified. QuaSiC substrates have been physically characterized using XTEM and Low Temperature PL spectroscopy. The first results presented here suggest that thin film substrates obtained with the Smart-Cut~R process can be an alternative substrate source for the development of SiC power electronic devices.
机译:演示了使用Smart-Cut〜R工艺在SiC晶片之间进行金属晶片键合以及高质量4H SiC薄膜的转移。这些为肖特基二极管等垂直SiC功率器件应用开发的基板涉及SiC晶圆之间的金属晶圆键合以及将高质量薄膜转移到低成本SiC基板上。这些基板称为QuaSiC基板。通过I(V)验证了1450℃下CVD SiC外延生长的相容性以及第一键合界面的电透明性。 QuaSiC基板已使用XTEM和低温PL光谱进行了物理表征。本文介绍的第一个结果表明,采用Smart-Cut〜R工艺获得的薄膜基板可以作为SiC功率电子器件开发的替代基板来源。

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