STRAINED SILICON-ON-INSULATOR BY ANODIZATION OF A BURIED p+ SILICON GERMANIUM LAYER
    12.
    发明申请
    STRAINED SILICON-ON-INSULATOR BY ANODIZATION OF A BURIED p+ SILICON GERMANIUM LAYER 审中-公开
    通过阳极氧化P +硅锗层的分级制备的绝缘硅绝缘体

    公开(公告)号:WO2006003061A1

    公开(公告)日:2006-01-12

    申请号:PCT/EP2005/052424

    申请日:2005-05-27

    CPC classification number: H01L21/76259 Y10S438/967

    Abstract: A cost efficient and manufacturable method of fabricating strained semiconductor-on-insulator (SSOI) substrates is provided that avoids wafer bonding. The method includes growing various epitaxial semiconductor layers on a substrate, wherein at least one of the semiconductor layers is a doped and relaxed semiconductor layer underneath a strained semiconductor layer; converting the doped and relaxed semiconductor layer into a porous semiconductor via an electrolytic anodization process, and oxidizing to convert the porous semiconductor layer into a buried oxide layer. The method provides a SSOI substrate that includes a relaxed semiconductor layer on a substrate; a high-quality buried oxide layer on the relaxed semiconductor layer; and a strained semiconductor layer on the high-quality buried oxide layer. In accordance with the present invention, the relaxed semiconductor layer and the strained semiconductor layer have identical crystallographic orientations.

    Abstract translation: 提供了制造应变半导体绝缘体(SSOI)衬底的成本有效和可制造的方法,其避免晶片接合。 该方法包括在衬底上生长各种外延半导体层,其中半导体层中的至少一个是在应变半导体层下面的掺杂和弛豫半导体层; 通过电解阳极氧化处理将掺杂和松弛的半导体层转化成多孔半导体,并氧化以将多孔半导体层转化为掩埋氧化物层。 该方法提供了在衬底上包括松弛半导体层的SSOI衬底; 在松弛的半导体层上形成高质量的掩埋氧化物层; 以及在高质量掩埋氧化物层上的应变半导体层。 根据本发明,松弛半导体层和应变半导体层具有相同的晶体取向。

    BURIED CHANNEL MOSFET USING III-V COMPOUND SEMICONDUCTORS AND HIGH K GATE DIELECTRICS
    20.
    发明申请
    BURIED CHANNEL MOSFET USING III-V COMPOUND SEMICONDUCTORS AND HIGH K GATE DIELECTRICS 审中-公开
    使用III-V复合半导体和高K栅介质的BURIED CHANNEL MOSFET

    公开(公告)号:WO2007149581A3

    公开(公告)日:2008-08-28

    申请号:PCT/US2007014684

    申请日:2007-06-25

    CPC classification number: H01L29/7787 H01L29/66462

    Abstract: A semiconductor-containing heterostructure including, from bottom to top, a IH-V compound semiconductor buffer layer, a III-V compound semiconductor channel layer, a HI-V compound semiconductor barrier layer, and an optional, yet preferred, IH-V compound semiconductor cap layer is provided. The barrier layer may be doped, or preferably undoped. The HI-V compound semiconductor buffer layer and the HI-V compound semiconductor barrier layer are comprised of materials that have a wider band gap than that of the pi-V compound semiconductor channel layer. Since wide band gap materials are used for the buffer and barrier layer and a narrow band gap material is used for the channel layer, carriers are confined to the channel layer under certain gate bias range. The inventive heterostructure can be employed as a buried channel structure in a field effect transistor.

    Abstract translation: 一种含半导体的异质结构,包括从底部到顶部的IH-V化合物半导体缓冲层,III-V族化合物半导体沟道层,HI-V族化合物半导体阻挡层和任选的,但优选的IH-V化合物 提供半导体盖层。 阻挡层可以是掺杂的,或者优选地是未掺杂的。 HI-V化合物半导体缓冲层和HI-V化合物半导体阻挡层由具有比p-V化合物半导体沟道层的带隙更宽的带隙的材料构成。 由于宽带隙材料用于缓冲层和阻挡层,并且窄带隙材料用于沟道层,载流子在特定栅极偏置范围内被限制在沟道层上。 本发明的异质结构可以用作场效应晶体管中的掩埋沟道结构。

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