FORMATION OF GATE ALL AROUND DEVICE

Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise an oxide layer and a semiconductor material layer between source regions and drain regions of the device. The method includes growing a conformal epitaxial layer on a nanosheet channel layer...

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Bibliographic Details
Main Authors Kim, Myungsun, Davey, Eric, Colombeau, Benjamin, Lo, Andy, Stolfi, Michael
Format Patent
LanguageEnglish
Published 21.04.2022
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Summary:Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise an oxide layer and a semiconductor material layer between source regions and drain regions of the device. The method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer. An alternative method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by a surface treatment, and then radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer.
Bibliography:Application Number: US202117498098