MIM capacitors
    3.
    发明申请
    MIM capacitors 有权
    MIM电容器

    公开(公告)号:US20050282346A1

    公开(公告)日:2005-12-22

    申请号:US11210094

    申请日:2005-08-23

    摘要: A method for forming a MIM capacitor and a MIM capacitor device formed by same. A preferred embodiment comprises selectively forming a first cap layer over a wafer including a MIM capacitor bottom plate, and depositing an insulating layer over the MIM capacitor bottom plate. The insulating layer is patterned with a MIM capacitor top plate pattern, and a MIM dielectric material is deposited over the patterned insulating layer. A conductive material is deposited over the MIM dielectric material, and the wafer is planarized to remove the conductive material and MIM dielectric material from the top surface of the insulating layer and form a MIM capacitor top plate. A second cap layer is selectively formed over the MIM capacitor top plate.

    摘要翻译: 一种用于形成MIM电容器的方法和由其形成的MIM电容器器件。 优选实施例包括在包括MIM电容器底板的晶片上选择性地形成第一盖层,以及在MIM电容器底板上沉积绝缘层。 用MIM电容器顶板图案对绝缘层进行构图,并且在图案化绝缘层上沉积MIM电介质材料。 在MIM介电材料上沉积导电材料,并且平坦化晶片以从绝缘层的顶表面去除导电材料和MIM电介质材料,并形成MIM电容器顶板。 在MIM电容器顶板上选择性地形成第二盖层。

    Method of making a MIM capacitor with self-passivating plates
    10.
    发明授权
    Method of making a MIM capacitor with self-passivating plates 有权
    制造具有自钝化板的MIM电容器的方法

    公开(公告)号:US06451664B1

    公开(公告)日:2002-09-17

    申请号:US09774251

    申请日:2001-01-30

    IPC分类号: H01L2120

    CPC分类号: H01L28/40 H01L28/60

    摘要: A method of making a metal-insulator-metal (MIM) capacitor (158) having self-passivating plates (143, 155). A liner (116) is deposited on a workpiece (112) and dielectric (114). A conductive layer (142) is deposited and annealed to form dopant-rich region (144). Insulating region (145) is formed on exposed portions of dopant-rich region (144) by exposure to atmosphere or oxygen. Capacitor dielectric layer (146) is disposed over the first capacitive plate (143). A second capacitive plate (155) is formed over the first capacitive plate (143) and capacitor dielectric layer (146). The second capacitive plate (155) is annealed to form dopant-rich region (154) and exposed to atmosphere or oxygen to form insulating region (156). Optional seed layer (140) may be deposited prior to the formation of the first capacitive plate (143).

    摘要翻译: 一种制造具有自钝化板(143,155)的金属 - 绝缘体 - 金属(MIM)电容器(158)的方法。 衬垫(116)沉积在工件(112)和电介质(114)上。 沉积并退火导电层(142)以形成富掺杂区域(144)。 绝缘区域(145)通过暴露于大气或氧气而形成在富掺杂区域(144)的暴露部分上。 电容电介质层(146)设置在第一电容板(143)的上方。 在第一电容板(143)和电容器电介质层(146)之上形成第二电容板(155)。 退火第二电容板155以形成富掺杂区域154并暴露于大气或氧气以形成绝缘区域156。 可以在形成第一电容板(143)之前沉积可选种子层(140)。