BIPOLAR NON-PUNCH-THROUGH POWER SEMICONDUCTOR DEVICE

The wafer comprises an inner region wand an outer region surrounding the inner region. The drift layer has a thickness in the inner region greater or equal than a thickness in the outer region. A thickness of the first layer increases in a transition region between the inner region and the outer reg...

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Bibliographic Details
Main Authors VOBECKY, Jan, BOTAN, Virgiliu, STIEGLER, Karlheinz
Format Patent
LanguageEnglish
French
German
Published 04.10.2017
Subjects
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Summary:The wafer comprises an inner region wand an outer region surrounding the inner region. The drift layer has a thickness in the inner region greater or equal than a thickness in the outer region. A thickness of the first layer increases in a transition region between the inner region and the outer region from a thickness in the inner region to a maximum thickness in the outer region. The thickness of the first layer increases linearly over the transition region with a width of the transition region greater than 5 times a thickness of the first section of the first layer.
Bibliography:Application Number: EP20140747388