Elimination of residual materials in a multiple-layer interconnect
structure
    1.
    发明授权
    Elimination of residual materials in a multiple-layer interconnect structure 失效
    消除多层互连结构中的残留材料

    公开(公告)号:US6153933A

    公开(公告)日:2000-11-28

    申请号:US925821

    申请日:1997-09-05

    摘要: A multiple-layer interconnect structure in an integrated circuit, is formed using damascene techniques. A first layer interconnect has a first dielectric layer through which at least one first layer conductor extends. A second layer interconnect is then formed on the first layer interconnect. The second layer interconnect also includes a second layer dielectric through which at least one second layer conductor extends. However, the second layer interconnect is created by first forming a thick second later dielectric layer and then reducing the thickness of the second layer dielectric prior to a patterning step. As a result topographical irregularities that may have carried over to the second layer interconnect from the first layer interconnect are removed by providing a substantially planar surface on the second layer dielectric.

    摘要翻译: 使用镶嵌技术形成集成电路中的多层互连结构。 第一层互连具有第一介电层,至少一个第一层导体通过第一介电层延伸。 然后在第一层互连上形成第二层互连。 第二层互连还包括第二层电介质,至少一层第二层导体延伸穿过第二层电介质。 然而,第二层互连通过首先形成厚的第二次介质层,然后在图案化步骤之前减小第二层电介质的厚度而产生。 因此,可以通过在第二层电介质上提供基本平坦的表面来去除可能已经承载到来自第一层互连的第二层互连的拓扑不规则。

    Deposition control of stop layer and dielectric layer for use in the
formation of local interconnects
    2.
    发明授权
    Deposition control of stop layer and dielectric layer for use in the formation of local interconnects 失效
    用于形成局部互连的停止层和介电层的沉积控制

    公开(公告)号:US6060393A

    公开(公告)日:2000-05-09

    申请号:US993888

    申请日:1997-12-18

    IPC分类号: H01L21/768 H01L21/304

    CPC分类号: H01L21/76895 H01L21/76801

    摘要: A deposition method allows for the forming of a uniform dielectric stop layer that is substantially void of defects caused by outgassing effects. The stop layer is deposited in a reactor chamber at a higher than normal temperature of at least 480.degree. C. The stop layer is then combined with an overlying dielectric layer to provide an inter-level dielectric structure through which a local interconnect can be formed to provide a conductive path to one or more regions of the underlying semiconductor devices.

    摘要翻译: 沉积方法允许形成基本上没有由除气效应引起的缺陷的均匀的电介质停止层。 停止层沉积在高于至少480℃的常温的反应器室中。然后将停止层与覆盖的介电层组合以提供层间电介质结构,通过该层间电介质结构可以形成局部互连 为下面的半导体器件的一个或多个区域提供导电路径。

    In-situ deposition of stop layer and dielectric layer during formation
of local interconnects
    4.
    发明授权
    In-situ deposition of stop layer and dielectric layer during formation of local interconnects 失效
    在形成局部互连时,停止层和电介质层的原位沉积

    公开(公告)号:US6060404A

    公开(公告)日:2000-05-09

    申请号:US924130

    申请日:1997-09-05

    摘要: An in-situ deposition method allows for the forming of a dielectric layer suitable for use in forming a conductive path in a semiconductor wafer. The method includes depositing a thin SiO.sub.x N.sub.y stop layer on top of a semiconductor wafer within a chemical vapor deposition (CVD) reactor chamber having a low pressure, maintaining the low pressure following the deposition of the SiO.sub.x N.sub.y stop layer, and then depositing a thick TEOS oxide dielectric layer on the SiO.sub.x N.sub.y stop layer within the CVD reactor chamber. The in-situ deposition process reduces outgassing defects that would normally form at the interface between the SiON stop layer and the TEOS oxide dielectric layer.

    摘要翻译: 原位沉积方法允许形成适合用于在半导体晶片中形成导电路径的电介质层。 该方法包括在具有低压的化学气相沉积(CVD)反应器室内的半导体晶片的顶部上沉积薄的SiOxNy阻挡层,保持在沉积SiO x N y终止层之后的低压,然后沉积厚的TEOS氧化物 在CVD反应器室内的SiOxNy停止层上的介电层。 原位沉积过程减少了通常在SiON阻挡层和TEOS氧化物介电层之间的界面处形成的除气缺陷。

    Methods for making a semiconductor device with improved hot carrier
lifetime
    6.
    发明授权
    Methods for making a semiconductor device with improved hot carrier lifetime 失效
    制造具有改善的热载流子寿命的半导体器件的方法

    公开(公告)号:US6022799A

    公开(公告)日:2000-02-08

    申请号:US993828

    申请日:1997-12-18

    摘要: A local interconnection to a device region in/on a substrate is formed by depositing either silicon oxynitride or silicon oxime as an etch stop layer, at a temperature of less than about 480.degree. C. to increase the hot carrier injection (HCI) lifetime of the resulting semiconductor device. A dielectric layer is then deposited over the etch stop layer and through-holes are etched exposing the etch stop layer using a first etching process. A second etching process is then conducted, which etches through the etch stop layer exposing at least one device region. The resulting through-hole is then filled with conductive material(s) to form a local interconnection.

    摘要翻译: 通过在小于约480℃的温度下沉积硅氧氮化物或硅肟作为蚀刻停止层来形成与衬底中/之上的器件区域的局部互连,以增加热载流子注入(HCI)寿命 得到的半导体器件。 然后将介电层沉积在蚀刻停止层上,并且使用第一蚀刻工艺蚀刻暴露蚀刻停止层的通孔。 然后进行第二蚀刻工艺,其蚀刻通过蚀刻停止层暴露至少一个器件区域。 然后将所形成的通孔用导电材料填充以形成局部互连。

    Methods and arrangements for insulating local interconnects for improved alignment tolerance and size reduction
    8.
    发明授权
    Methods and arrangements for insulating local interconnects for improved alignment tolerance and size reduction 有权
    用于绝缘局部互连的方法和布置,以改善对准公差和减小尺寸

    公开(公告)号:US06399480B1

    公开(公告)日:2002-06-04

    申请号:US09515319

    申请日:2000-02-29

    IPC分类号: H01L714263

    CPC分类号: H01L21/76895 H01L21/76897

    摘要: At least one patterned dielectric layer is provided within a transistor arrangement to prevent a local interconnect from electrically contacting,the gate conductor due to misalignments during the damascene formation of etched openings used in forming local interconnects. By selectively etching through a plurality of dielectric layers during the local interconnect etching process, the patterned dielectric layer is left in place to prevent short-circuiting of the gate to an adjacent local interconnect that is slightly misaligned.

    摘要翻译: 在晶体管布置内提供至少一个图案化的介电层,以防止局部互连在形成局部互连的蚀刻开口的镶嵌层形成期间由于不对准导致栅极导体电接触。 通过在局部互连蚀刻工艺期间通过选择性蚀刻穿过多个电介质层,将图案化的介电层留在原位以防止栅极短路到相邻的局部互连,其稍微错位。