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    • 25. 发明申请
    • SEMICONDUCTOR DEVICES INCLUDING GATE STRUCTURE AND METHOD OF FABRICATING THE SAME
    • 包括门结构的半导体器件及其制造方法
    • US20110284968A1
    • 2011-11-24
    • US13097409
    • 2011-04-29
    • Kwang-Wook LeeJae-Jik BaekIn-Seak HwangSeok-Woo Nam
    • Kwang-Wook LeeJae-Jik BaekIn-Seak HwangSeok-Woo Nam
    • H01L29/772
    • H01L29/66545H01L29/165H01L29/66621H01L29/66628H01L29/66636H01L29/7848
    • A semiconductor device includes a semiconductor substrate having a top surface and a recessed portion including at least two oblique side surfaces and a first bottom surface therebetween, a gate insulating layer formed on the recessed portion, a gate electrode formed on the gate insulating layer, a channel region below the gate electrode in the semiconductor substrate, and gate spacers formed on side surfaces of the gate electrode, wherein both the bottom surface and the side surfaces of the recessed portion include flat surfaces. A method of manufacturing a semiconductor device comprising the steps of forming a recess portion including at least two oblique side surfaces and a bottom surface therebetween in a semiconductor substrate, forming a gate insulating layer formed on the recessed portion, forming a gate electrode formed on the gate insulating layer, forming a channel region below the gate electrode in the semiconductor substrate, and forming gate spacers formed on side surfaces of the gate electrode.
    • 半导体器件包括具有顶表面和凹部的半导体衬底,该凹部包括至少两个倾斜侧表面和其间的第一底表面,形成在凹陷部分上的栅极绝缘层,形成在栅极绝缘层上的栅电极, 半导体衬底中的栅电极下方的沟道区域和形成在栅电极的侧表面上的栅极间隔,其中凹部的底表面和侧表面均包括平坦表面。 一种制造半导体器件的方法,包括以下步骤:在半导体衬底中形成包括至少两个倾斜侧表面和底表面的凹部,形成在所述凹部上形成的栅极绝缘层,形成在所述凹部上形成的栅电极 栅极绝缘层,在半导体衬底中的栅电极下方形成沟道区,以及形成在栅电极的侧表面上的栅极间隔。