Copper plating of semiconductor devices using single intermediate low power immersion step
    1.
    发明授权
    Copper plating of semiconductor devices using single intermediate low power immersion step 有权
    采用单中级低功耗浸入式半导体器件镀铜

    公开(公告)号:US07312149B2

    公开(公告)日:2007-12-25

    申请号:US10840095

    申请日:2004-05-06

    IPC分类号: H01L21/44

    摘要: A method of electroplating a metal layer on a semiconductor device includes a sequence of biasing operations that includes a first electroplating step at a first current density followed by a second immersion step at a second current density being less than the first current density, and subsequent electroplating steps of increasing current densities beginning with a third electroplating step having a third current density that is greater than the first current density. The second, low current density immersion step improves the quality of the plating process and produces a plated film that completely fills openings such as vias and trenches and avoids hollow vias and pull-back on the bottom corners of via and trench openings. The low current density second immersion step produces an electrochemical deposition process that provides low contact resistance and therefore reduces device failure.

    摘要翻译: 在半导体器件上电镀金属层的方法包括一系列偏置操作,其包括第一电流密度的第一电镀步骤,随后是第二电流密度小于第一电流密度的第二浸入步骤,随后的电镀 从具有大于第一电流密度的第三电流密度的第三电镀步骤开始增加电流密度的步骤。 第二,低电流密度浸没步骤提高了电镀工艺的质量,并且产生完全填充诸如通孔和沟槽等开口的电镀膜,并避免了通孔和沟槽开口的底角上的中空通孔和拉回。 低电流密度第二浸入步骤产生电化学沉积工艺,其提供低接触电阻并因此减少器件故障。

    Copper plating of semiconductor devices using intermediate immersion step
    2.
    发明申请
    Copper plating of semiconductor devices using intermediate immersion step 有权
    使用中间浸渍步骤的半导体器件的镀铜

    公开(公告)号:US20050250327A1

    公开(公告)日:2005-11-10

    申请号:US10840095

    申请日:2004-05-06

    摘要: A method of electroplating a metal layer on a semiconductor device includes a sequence of biasing operations that includes a first electroplating step at a first current density followed by a second immersion step at a second current density being less than the first current density, and subsequent electroplating steps of increasing current densities beginning with a third electroplating step having a third current density that is greater than the first current density. The second, low current density immersion step improves the quality of the plating process and produces a plated film that completely fills openings such as vias and trenches and avoids hollow vias and pull-back on the bottom corners of via and trench openings. The low current density second immersion step produces an electrochemical deposition process that provides low contact resistance and therefore reduces device failure.

    摘要翻译: 在半导体器件上电镀金属层的方法包括一系列偏置操作,其包括第一电流密度的第一电镀步骤,随后是第二电流密度小于第一电流密度的第二浸入步骤,随后的电镀 从具有大于第一电流密度的第三电流密度的第三电镀步骤开始增加电流密度的步骤。 第二,低电流密度浸没步骤提高了电镀工艺的质量,并且产生完全填充诸如通孔和沟槽等开口的电镀膜,并避免了通孔和沟槽开口的底角上的中空通孔和拉回。 低电流密度第二浸入步骤产生电化学沉积工艺,其提供低接触电阻并因此减少器件故障。

    Test device and method for laser alignment calibration
    5.
    发明申请
    Test device and method for laser alignment calibration 有权
    用于激光对准校准的测试装置和方法

    公开(公告)号:US20060055928A1

    公开(公告)日:2006-03-16

    申请号:US10942554

    申请日:2004-09-15

    IPC分类号: G01B11/00

    CPC分类号: H01L22/34 G01B21/042

    摘要: A novel test device and method for calibrating the alignment of a laser beam emitted from a laser metrology tool with respect to a target area on a substrate. The test device includes a laser-sensitive material having a calibration pattern that includes a target point. When the tool is properly adjusted, the laser beam strikes the target point and is released to production. If the laser beam misses the target point, the tool is re-adjusted and re-tested until the laser beam strikes the target point.

    摘要翻译: 一种用于校准从激光计量工具发射的激光束相对于衬底上的目标区域的对准的新型测试装置和方法。 测试装置包括具有包括目标点的校准图案的激光敏感材料。 当工具被正确调整时,激光束撞击目标点并释放到生产中。 如果激光束错过目标点,则重新调整工具并重新测试直到激光束撞击目标点。

    Test device and method for laser alignment calibration
    7.
    发明授权
    Test device and method for laser alignment calibration 有权
    用于激光对准校准的测试装置和方法

    公开(公告)号:US07304728B2

    公开(公告)日:2007-12-04

    申请号:US10942554

    申请日:2004-09-15

    IPC分类号: G01C1/00

    CPC分类号: H01L22/34 G01B21/042

    摘要: A novel test device and method for calibrating the alignment of a laser beam emitted from a laser metrology tool with respect to a target area on a substrate. The test device includes a laser-sensitive material having a calibration pattern that includes a target point. When the tool is properly adjusted, the laser beam strikes the target point and is released to production. If the laser beam misses the target point, the tool is re-adjusted and re-tested until the laser beam strikes the target point.

    摘要翻译: 一种用于校准从激光计量工具发射的激光束相对于衬底上的目标区域的对准的新型测试装置和方法。 测试装置包括具有包括目标点的校准图案的激光敏感材料。 当工具被正确调整时,激光束撞击目标点并释放到生产中。 如果激光束错过目标点,则重新调整工具并重新测试直到激光束撞击目标点。

    Plating apparatuses and processes
    9.
    发明申请
    Plating apparatuses and processes 审中-公开
    电镀设备和工艺

    公开(公告)号:US20070084730A1

    公开(公告)日:2007-04-19

    申请号:US11248176

    申请日:2005-10-13

    IPC分类号: C25D5/48

    摘要: Plating apparatuses and plating processes. Plating apparatuses includes a plating station and a post plating treatment station adjacent to the plating station. The plating station comprises at least one plating cell and provides a first environment therein with a first relative humidity (RH) higher than that of a clean room where the plating apparatus is disposed. The post plating treatment station provides a second environment therein with a second RH lower than the first RH.

    摘要翻译: 电镀设备和电镀工艺。 电镀装置包括电镀站和邻近电镀站的电镀后处理站。 电镀站包括至少一个电镀槽,并在其中提供第一相对湿度(RH)高于设置有电镀设备的洁净室的第一相对湿度(RH)。 后电镀处理站在其中提供第二环境,其第二RH低于第一RH。

    Method of forming barrier layer with reduced resistivity and improved reliability in copper damascene process
    10.
    发明授权
    Method of forming barrier layer with reduced resistivity and improved reliability in copper damascene process 失效
    在铜镶嵌工艺中形成具有降低电阻率和改善可靠性的阻挡层的方法

    公开(公告)号:US07071100B2

    公开(公告)日:2006-07-04

    申请号:US10788912

    申请日:2004-02-27

    IPC分类号: H01L21/4763

    摘要: A method for forming a copper dual damascene with improved copper migration resistance and improved electrical resistivity including providing a semiconductor wafer including upper and lower dielectric insulating layers separated by a middle etch stop layer; forming a dual damascene opening extending through a thickness of the upper and lower dielectric insulating layers wherein an upper trench line portion extends through the upper dielectric insulating layer thickness and partially through the middle etch stop layer; blanket depositing a barrier layer including at least one of a refractory metal and refractory metal nitride to line the dual damascene opening; carrying out a remote plasma etch treatment of the dual damascene opening to remove a bottom portion of the barrier layer to reveal an underlying conductive area; and, filling the dual damascene opening with copper to provide a substantially planar surface.

    摘要翻译: 一种用于形成具有改善的铜迁移阻力和改善的电阻率的铜双镶嵌的方法,包括提供包括由中间蚀刻停止层分隔的上和下介电绝缘层的半导体晶片; 形成延伸通过上下介电绝缘层的厚度的双镶嵌开口,其中上沟槽线部分延伸穿过上介电绝缘层的厚度并部分地穿过中蚀刻停止层; 毯子沉积包括难熔金属和难熔金属氮化物中的至少一种的阻挡层,以便排列双镶嵌开口; 对双镶嵌开口执行远程等离子体蚀刻处理以去除阻挡层的底部以露出下面的导电区域; 并且用铜填充双镶嵌开口以提供基本平坦的表面。