METHODS OF FORMING TRANSISTOR DEVICES WITH HIGH-K INSULATION LAYERS AND THE RESULTING DEVICES
    13.
    发明申请
    METHODS OF FORMING TRANSISTOR DEVICES WITH HIGH-K INSULATION LAYERS AND THE RESULTING DEVICES 有权
    用高K绝缘层和结晶器件形成晶体管器件的方法

    公开(公告)号:US20140027859A1

    公开(公告)日:2014-01-30

    申请号:US13561315

    申请日:2012-07-30

    IPC分类号: H01L21/28 H01L27/088

    摘要: Method of forming transistor devices is disclosed that includes forming a first layer of high-k insulating material and a sacrificial protection layer above first and second active regions, removing the first layer of insulating material and the protection layer from above the second active region, removing the protection layer from above the first layer of insulating material positioned above the first active region, forming a second layer of high-k insulating material above the first layer of insulating material and the second active region, forming a layer of metal above the second layer of insulating material, and removing portions of the first and second layers of insulating material and the metal layer to form a first gate stack (comprised of the first and second layers of high-k material and the layer of metal) and a second gate stack (comprised of the second layer of high-k material and the layer of metal).

    摘要翻译: 公开了形成晶体管器件的方法,其包括在第一和第二有源区之上形成第一层高k绝缘材料和牺牲保护层,从第二有源区上方去除第一绝缘材料层和保护层,去除 所述保护层位于所述第一绝缘材料层上方,位于所述第一有源区上方,在所述第一绝缘材料层和所述第二有源区上方形成第二层高k绝缘材料,在所述第二层上方形成金属层 的绝缘材料,并且去除第一和第二绝缘材料层和金属层的部分以形成第一栅极叠层(由第一和第二层高k材料和金属层组成)和第二栅极堆叠 (由第二层高k材料和金属层组成)。

    Method of enhancing lithography capabilities during gate formation in semiconductors having a pronounced surface topography
    19.
    发明授权
    Method of enhancing lithography capabilities during gate formation in semiconductors having a pronounced surface topography 有权
    在具有明显的表面形貌的半导体中增强栅极形成期间光刻能力的方法

    公开(公告)号:US08101512B2

    公开(公告)日:2012-01-24

    申请号:US11773631

    申请日:2007-07-05

    IPC分类号: H01L21/4763

    CPC分类号: H01L21/28123 H01L29/66772

    摘要: In a mesa isolation configuration for forming a transistor on a semiconductor island, an additional planarization step is performed to enhance the uniformity of the gate patterning process. In some illustrative embodiments, the gate electrode material may be planarized, for instance, on the basis of CMP, to compensate for the highly non-uniform surface topography, when the gate electrode material is formed above the non-filled isolation trenches. Consequently, significant advantages of the mesa isolation strategy may be combined with a high degree of scalability due to the enhancement of the critical gate patterning process.

    摘要翻译: 在用于在半导体岛上形成晶体管的台面隔离结构中,执行附加的平面化步骤以增强栅极图案化工艺的均匀性。 在一些说明性实施例中,当栅电极材料形成在未填充的隔离沟槽上方时,栅电极材料可以例如基于CMP平坦化,以补偿高度不均匀的表面形貌。 因此,由于关键栅极图案化工艺的增强,台面隔离策略的显着优点可能与高度可扩展性相结合。