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    • 5. 发明授权
    • Planarizing technique for multilayered substrates
    • 多层基板的平面化技术
    • US6103599A
    • 2000-08-15
    • US89931
    • 1998-06-03
    • Francois J. HenleyNathan Cheung
    • Francois J. HenleyNathan Cheung
    • H01L21/306H01L21/762H01L21/00
    • H01L21/30604H01L21/76254Y10S438/977
    • The present invention provides a multilayered wafer 10 such as an SOI wafer having a novel implanted layer. This implanted layer is removable and provides a resulting wafer having a substantially uniform surface. The wafer includes a bulk substrate 11 and an insulating layer 13 formed overlying the bulk substrate 15. A film of semiconductor material is formed overlying the insulating layer. Surface non-uniformities are formed overlying and in the film of semiconductor material. The non-uniformities are implanted, and are bordered by a substantially uniform interface 17 at a selected depth underlying the surface non-uniformities. The substantially uniform interface provides a substantially uniform resulting surface for the SOI wafer.
    • 本发明提供了具有新颖植入层的SOI晶片等多层晶片10。 该植入层是可移除的并且提供具有基本均匀表面的所得晶片。 该晶片包括大块基片11和形成在本体基片15上的绝缘层13.半导体材料薄膜覆盖在绝缘层上。 在半导体材料的膜上形成表面非均匀性。 非均匀性被植入,并且在表面非均匀性下方的选定深度处由基本上均匀的界面17界定。 基本上均匀的界面为SOI晶片提供了基本上均匀的所得表面。