Metal silicide etch resistant plasma etch method
    11.
    发明授权
    Metal silicide etch resistant plasma etch method 失效
    金属硅化物抗蚀刻等离子体蚀刻方法

    公开(公告)号:US06706640B1

    公开(公告)日:2004-03-16

    申请号:US10292355

    申请日:2002-11-12

    IPC分类号: H01L21302

    摘要: A plasma etch method for etching a dielectric layer and an etch stop layer to reach a metal silicide layer formed thereunder employs for etching the etch stop layer an etchant gas composition comprising a fluorine containing gas and a nitrogen containing gas, preferably with a carrier gas such as argon or helium, but without an oxygen containing gas or a carbon and oxygen containing gas. The plasma etch method is selective for the etch stop layer with respect to the metal silicide layer, thus maintaining the physical and electrical integrity of the metal silicide layer.

    摘要翻译: 用于蚀刻介电层和蚀刻停止层以达到其下形成的金属硅化物层的等离子体蚀刻方法用于蚀刻蚀刻停止层包括含氟气体和含氮气体的蚀刻剂气体组合物,优选地使用载气如 作为氩或氦,但不含含氧气体或含碳和氧的气体。 等离子体蚀刻方法对于蚀刻停止层相对于金属硅化物层是选择性的,从而保持金属硅化物层的物理和电气完整性。

    Semiconductor devices and methods with bilayer dielectrics
    15.
    发明授权
    Semiconductor devices and methods with bilayer dielectrics 有权
    具有双层电介质的半导体器件和方法

    公开(公告)号:US07531399B2

    公开(公告)日:2009-05-12

    申请号:US11532308

    申请日:2006-09-15

    IPC分类号: H01L21/8238

    摘要: A semiconductor device is disclosed that includes: a substrate; a first high-k dielectric layer; a second high-k dielectric layer formed of a different high-k material; and a metal gate. In another form, a method of forming a semiconductor device is disclosed that includes: providing a substrate; forming a first high-k dielectric layer above the substrate; forming a second dielectric layer of a different high-k material above the first dielectric layer; and forming a gate structure above the second dielectric layer. In yet another form, a method of forming a semiconductor device is disclosed that includes: providing a substrate; forming an interfacial layer above the substrate; forming a first high-k dielectric layer above the interfacial layer; performing a nitridation technique; performing an anneal; forming a second high-k dielectric layer of a different high-k material above the first dielectric layer; and forming a metal gate structure above the second dielectric layer.

    摘要翻译: 公开了一种半导体器件,包括:衬底; 第一高k电介质层; 由不同的高k材料形成的第二高k电介质层; 和金属门。 在另一种形式中,公开了一种形成半导体器件的方法,包括:提供衬底; 在所述衬底上形成第一高k电介质层; 在所述第一介电层上形成不同高k材料的第二电介质层; 以及在所述第二电介质层上形成栅极结构。 在另一种形式中,公开了一种形成半导体器件的方法,其包括:提供衬底; 在基底上形成界面层; 在界面层上形成第一高k电介质层; 进行氮化技术; 进行退火; 在所述第一介电层上形成不同高k材料的第二高k电介质层; 以及在所述第二电介质层上方形成金属栅极结构。

    Semiconductor devices with dual-metal gate structures and fabrication methods thereof
    16.
    发明授权
    Semiconductor devices with dual-metal gate structures and fabrication methods thereof 有权
    具有双金属栅极结构的半导体器件及其制造方法

    公开(公告)号:US07378713B2

    公开(公告)日:2008-05-27

    申请号:US11552704

    申请日:2006-10-25

    IPC分类号: H01L27/092 H01L29/423

    摘要: Semiconductor devices with dual-metal gate structures and fabrication methods thereof. A semiconductor substrate with a first doped region and a second doped region separated by an insulation layer is provided. A first metal gate stack is formed on the first doped region, and a second metal gate stack is formed on the second doped region. A sealing layer is disposed on sidewalls of the first gate stack and the second gate stack. The first metal gate stack comprises an interfacial layer, a high-k dielectric layer on the interfacial layer, a first metal layer on the high-k dielectric layer, a metal insertion layer on the first metal layer, a second metal layer on the metal insertion layer, and a polysilicon layer on the second metal layer. The second metal gate stack comprises an interfacial layer, a high-k dielectric layer on the interfacial layer, a second metal layer on the high-k dielectric layer, and a polysilicon layer on the second metal layer.

    摘要翻译: 具有双金属栅极结构的半导体器件及其制造方法。 提供了具有由绝缘层分隔开的第一掺杂区域和第二掺杂区域的半导体衬底。 在第一掺杂区上形成第一金属栅叠层,在第二掺杂区上形成第二金属栅叠层。 密封层设置在第一栅极堆叠和第二栅极叠层的侧壁上。 第一金属栅叠层包括界面层,界面层上的高k电介质层,高k电介质层上的第一金属层,第一金属层上的金属插入层,金属上的第二金属层 插入层和第二金属层上的多晶硅层。 第二金属栅堆叠包括界面层,界面层上的高k电介质层,高k电介质层上的第二金属层和第二金属层上的多晶硅层。

    Semiconductor devices and methods with bilayer dielectrics
    19.
    发明授权
    Semiconductor devices and methods with bilayer dielectrics 有权
    具有双层电介质的半导体器件和方法

    公开(公告)号:US08384159B2

    公开(公告)日:2013-02-26

    申请号:US12426477

    申请日:2009-04-20

    摘要: A semiconductor device is disclosed that includes: a substrate; a first dielectric layer formed over the substrate and formed of a first high-k material, the first high-k material selected from the group consisting of HfO2, HfSiO, HfSiON, HfTaO, HfTiO, HfTiTaO, HfAlON, and HfZrO; a second dielectric layer formed over the first dielectric layer and formed of a second high-k material, the second high-k material being different than the first high-k material and selected from the group consisting of HfO2, HfSiO, HfSiON, HfTaO, HfTiO, HfTiTaO, HfAlON, and HfZrO; and a metal gate formed over the second dielectric layer. The first dielectric layer includes ions selected from the group consisting of N, O, and Si.

    摘要翻译: 公开了一种半导体器件,包括:衬底; 形成在所述衬底上并由第一高k材料形成的第一介电层,所述第一高k材料选自HfO 2,HfSiO,HfSiON,HfTaO,HfTiO,HfTiTaO,HfAlON和HfZrO; 形成在所述第一介电层上并由第二高k材料形成的第二介电层,所述第二高k材料不同于所述第一高k材料并选自HfO 2,HfSiO,HfSiON,HfTaO, HfTiO,HfTiTaO,HfAlON和HfZrO; 以及形成在第二介电层上的金属栅极。 第一电介质层包括选自N,O和Si的离子。