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    • 8. 发明授权
    • Method of manufacturing field effect transistors using sacrificial blocking layers
    • 使用牺牲阻挡层制造场效应晶体管的方法
    • US07618868B2
    • 2009-11-17
    • US11381481
    • 2006-05-03
    • Jae-yoon YooYoung-gun Ko
    • Jae-yoon YooYoung-gun Ko
    • H01L21/336
    • H01L21/823468H01L21/823864H01L27/088H01L27/092
    • Provided are a more stable semiconductor integrated circuit device and a method of manufacturing the same. The method includes providing a semiconductor substrate comprising a first transistor region having a stacked structure of a first gate insulating layer and a first gate and a second transistor region having a stacked structure of a second gate insulating layer and a second gate, forming a blocking layer in the first transistor region, conformally forming a second oxide layer on lateral surfaces of the second gate insulating layer and the second gate and on an exposed surface of the semiconductor substrate by performing oxidation in the second transistor region, removing the blocking layer of the first transistor region, forming a pre-spacer layer on the entire surface of the semiconductor substrate, forming a first spacer by anisotropically etching the pre-spacer layer of the first transistor region and forming a second spacer by anisotropically etching the second oxide layer and the pre-spacer layer of the second transistor region, and forming source/drain regions in the semiconductor substrate to complete a first transistor and a second transistor.
    • 提供了一种更稳定的半导体集成电路器件及其制造方法。 该方法包括提供一种半导体衬底,其包括具有第一栅极绝缘层和第一栅极的堆叠结构的第一晶体管区域和具有第二栅极绝缘层和第二栅极的堆叠结构的第二晶体管区域,形成阻挡层 在第一晶体管区域中,通过在第二晶体管区域中进行氧化,在第二栅极绝缘层和第二栅极的侧表面上和半导体衬底的暴露表面上保形地形成第二氧化物层,去除第一 晶体管区域,在半导体衬底的整个表面上形成预分隔层,通过各向异性蚀刻第一晶体管区域的预隔离层形成第一间隔物,并通过各向异性蚀刻第二氧化物层和预先形成第二间隔层,形成第二间隔物 - 第二晶体管区域的间隔层,以及在半导体中形成源极/漏极区域 r衬底以完成第一晶体管和第二晶体管。