Method of a non-metal barrier copper damascene integration
    8.
    发明授权
    Method of a non-metal barrier copper damascene integration 有权
    非金属阻挡铜大马士革一体化方法

    公开(公告)号:US07151315B2

    公开(公告)日:2006-12-19

    申请号:US10459222

    申请日:2003-06-11

    IPC分类号: H01L23/50

    摘要: The present disclosure provides a method, integrated circuit, and interconnect structure utilizing non-metal barrier copper damascene integration. The method is provided for fabricating an interconnect for connecting to one or more front end of line (FEOL) devices. The method includes forming a layer of doped oxide on the one or more FEOL devices and forming a first barrier layer on the layer of doped oxide, the first barrier layer comprising such material as silicon oxycarbide (SiOC) or silicon carbonitride (SiCN). The method further includes forming a plurality of refractory metal plugs in the first barrier layer and the doped oxide layer, forming a low dielectric constant film over the first barrier layer and the plurality of refractory metal plugs, and performing a first etch to create trenches through the low dielectric constant film. The plurality of refractory metal plugs and the first barrier layer perform as an etch-stop.

    摘要翻译: 本公开提供了利用非金属阻挡铜镶嵌一体化的方法,集成电路和互连结构。 该方法用于制造用于连接到一个或多个前端(FEOL)装置的互连件。 该方法包括在一个或多个FEOL器件上形成掺杂氧化物层,并在掺杂氧化物层上形成第一势垒层,第一势垒层包含碳氧化硅(SiOC)或碳氮化硅(SiCN)等材料。 该方法还包括在第一阻挡层和掺杂氧化物层中形成多个难熔金属塞,在第一阻挡层和多个耐火金属插塞上形成低介电常数膜,并进行第一蚀刻以产生沟槽 低介电常数膜。 多个难熔金属插塞和第一阻挡层执行蚀刻停止。

    Method of fabricating barrierless and embedded copper damascene interconnects
    9.
    发明授权
    Method of fabricating barrierless and embedded copper damascene interconnects 失效
    制造无障碍和嵌入铜大马士革互连的方法

    公开(公告)号:US06878621B2

    公开(公告)日:2005-04-12

    申请号:US10346382

    申请日:2003-01-17

    摘要: A method for forming at least one barrierless, embedded metal structure comprising the following steps. A structure having a patterned dielectric layer formed thereover with at least one opening exposing at least one respective portion of the structure. Respective metal structures are formed within each respective opening. The first dielectric layer is removed to expose the top and at least a portion of the side walls of the respective at least one metal structure. A dielectric barrier layer is formed over the structure and the exposed top of the respective metal structure. A second, conformal dielectric layer is formed over the dielectric barrier layer to complete the respective barrierless at least one metal structure embedded within the second, conformal dielectric layer. The dielectric barrier layer preventing diffusion of the metal comprising the respective at least one metal structure into the second, conformal dielectric layer.

    摘要翻译: 一种形成至少一个无障碍嵌入金属结构的方法,包括以下步骤。 具有形成在其上的图案化电介质层的结构,其中至少一个开口暴露出结构的至少一个相应部分。 在每个相应的开口内形成相应的金属结构。 去除第一电介质层以暴露相应的至少一个金属结构的顶部和至少一部分侧壁。 介电阻挡层形成在相应的金属结构的结构和暴露的顶部上。 在电介质阻挡层上方形成第二个保形介电层,以完成嵌入在第二保形电介质层内的相应无障碍的至少一个金属结构。 电介质阻挡层防止包含相应的至少一种金属结构的金属扩散到第二保形电介质层中。