Enhanced cap layer integrity in a high-K metal gate stack by using a hard mask for offset spacer patterning
    2.
    发明授权
    Enhanced cap layer integrity in a high-K metal gate stack by using a hard mask for offset spacer patterning 有权
    通过使用用于偏移间隔物图案化的硬掩模,在高K金属栅极堆叠中增强了覆盖层的完整性

    公开(公告)号:US07981740B2

    公开(公告)日:2011-07-19

    申请号:US12821583

    申请日:2010-06-23

    IPC分类号: H01L21/8238 H01L21/336

    摘要: When forming transistor elements on the basis of sophisticated high-k metal gate structures, the efficiency of a replacement gate approach may be enhanced by more efficiently adjusting the gate height of transistors of different conductivity type when the dielectric cap layers of transistors may have experienced a different process history and may thus require a subsequent adaptation of the final cap layer thickness in one type of the transistors. For this purpose, a hard mask material may be used during a process sequence for forming offset spacer elements in one gate electrode structure while covering another gate electrode structure.

    摘要翻译: 当在复杂的高k金属栅极结构的基础上形成晶体管元件时,可以通过更有效地调节不同导电类型的晶体管的栅极高度来增强置换栅极方法的效率,当晶体管的介质盖层可能经历了 因此可能需要在一种类型的晶体管中随后适应最终的盖层厚度。 为此,可以在用于在一个栅电极结构中形成偏移间隔元件同时覆盖另一栅电极结构的处理顺序期间使用硬掩模材料。

    ENHANCED CAP LAYER INTEGRITY IN A HIGH-K METAL GATE STACK BY USING A HARD MASK FOR OFFSET SPACER PATTERNING
    3.
    发明申请
    ENHANCED CAP LAYER INTEGRITY IN A HIGH-K METAL GATE STACK BY USING A HARD MASK FOR OFFSET SPACER PATTERNING 有权
    通过使用硬掩模进行偏角平铺图案,在高K金属盖板上增强了盖层的整体性

    公开(公告)号:US20100330757A1

    公开(公告)日:2010-12-30

    申请号:US12821583

    申请日:2010-06-23

    IPC分类号: H01L21/8238 H01L21/8234

    摘要: When forming transistor elements on the basis of sophisticated high-k metal gate structures, the efficiency of a replacement gate approach may be enhanced by more efficiently adjusting the gate height of transistors of different conductivity type when the dielectric cap layers of transistors may have experienced a different process history and may thus require a subsequent adaptation of the final cap layer thickness in one type of the transistors. For this purpose, a hard mask material may be used during a process sequence for forming offset spacer elements in one gate electrode structure while covering another gate electrode structure.

    摘要翻译: 当在复杂的高k金属栅极结构的基础上形成晶体管元件时,可以通过更有效地调节不同导电类型的晶体管的栅极高度来增强置换栅极方法的效率,当晶体管的介质盖层可能经历了 因此可能需要在一种类型的晶体管中随后适应最终的盖层厚度。 为此,可以在用于在一个栅电极结构中形成偏移间隔元件同时覆盖另一栅电极结构的处理顺序期间使用硬掩模材料。

    METHOD OF FORMING A SEMICONDUCTOR DEVICE
    8.
    发明申请
    METHOD OF FORMING A SEMICONDUCTOR DEVICE 审中-公开
    形成半导体器件的方法

    公开(公告)号:US20130037866A1

    公开(公告)日:2013-02-14

    申请号:US13209061

    申请日:2011-08-12

    IPC分类号: H01L21/28 H01L29/78

    摘要: A method for forming a semiconductor device includes providing a substrate and depositing a gate stack having a side periphery on the substrate. A first liner dielectric layer is deposited on the substrate and the gate stack. A first spacer dielectric layer is deposited on the first liner dielectric layer. The first spacer dielectric layer is selectively etched such that the first spacer dielectric layer remains adjacent at least a portion of the side periphery of the gate stack. A first resist mask is disposed on a first portion of the first spacer dielectric layer such that the first portion of the first spacer dielectric layer is protected by the resist mask and a second portion of the first spacer dielectric layer is not protected by the resist mask. The first spacer dielectric layer is etched such that the second portion is removed and the first portion remains.

    摘要翻译: 一种用于形成半导体器件的方法包括提供衬底并在衬底上沉积具有侧边缘的栅极堆叠。 第一衬里介电层沉积在衬底和栅极叠层上。 第一间隔电介质层沉积在第一衬垫电介质层上。 选择性地蚀刻第一间隔电介质层,使得第一间隔物介质层保持邻近栅堆叠的侧边缘的至少一部分。 第一抗蚀剂掩模设置在第一间隔电介质层的第一部分上,使得第一间隔电介质层的第一部分被抗蚀剂掩模保护,并且第一间隔物介电层的第二部分不被抗蚀剂掩模保护 。 蚀刻第一间隔电介质层,使得第二部分被去除并且第一部分保留。