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公开(公告)号：US08795482B1
公开(公告)日：2014-08-05
申请号：US13572483
申请日：2012-08-10
申请人： Steven T. Mayer , Marshall R. Stowell , John S. Drewery , Richard S. Hill , Timothy M. Archer , Avishai Kepten
发明人： Steven T. Mayer , Marshall R. Stowell , John S. Drewery , Richard S. Hill , Timothy M. Archer , Avishai Kepten
CPC分类号： B23H5/08 , C25F3/16 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/7684
摘要： Methods and apparatus are provided for planar metal plating on a workpiece having a surface with recessed regions and exposed surface regions; comprising the steps of: causing a plating accelerator to become attached to said surface including the recessed and exposed surface regions; selectively removing the plating accelerator from the exposed surface regions without performing substantial metal plating on the surface; and after removal of plating accelerator is at least partially complete, plating metal onto the surface, whereby the plating accelerator remaining attached to the surface increases the rate of metal plating in the recessed regions relative to the rate of metal plating in the exposed surface regions.
摘要翻译： 提供了用于在具有凹陷区域和暴露表面区域的表面的工件上进行平面金属电镀的方法和装置; 包括以下步骤：使电镀加速器附着到包括凹入和暴露的表面区域的所述表面; 选择性地从暴露的表面区域去除电镀加速器，而不在表面上进行实质的金属电镀; 在去除电镀促进剂至少部分完成后，将金属镀在表面上，由此保持附着在表面上的电镀加速剂相对于露出的表面区域中的金属电镀速率增加凹陷区域中的金属电镀速率。
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公开(公告)号：US08268154B1
公开(公告)日：2012-09-18
申请号：US12860787
申请日：2010-08-20
IPC分类号： C25D5/02
CPC分类号： B23H5/08 , C25F3/16 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/7684
摘要： Methods and apparatus are provided for planar metal plating on a workpiece having a surface with recessed regions and exposed surface regions; comprising the steps of: causing a plating accelerator to become attached to said surface including the recessed and exposed surface regions; selectively removing the plating accelerator from the exposed surface regions without performing substantial metal plating on the surface; and after removal of plating accelerator is at least partially complete, plating metal onto the surface, whereby the plating accelerator remaining attached to the surface increases the rate of metal plating in the recessed regions relative to the rate of metal plating in the exposed surface regions.
摘要翻译： 提供了用于在具有凹陷区域和暴露表面区域的表面的工件上进行平面金属电镀的方法和装置; 包括以下步骤：使电镀加速器附着到包括凹入和暴露的表面区域的所述表面; 选择性地从暴露的表面区域去除电镀加速器，而不在表面上进行实质的金属电镀; 在去除电镀促进剂至少部分完成后，将金属镀在表面上，由此保持附着在表面上的电镀加速剂相对于露出的表面区域中的金属电镀速率增加凹陷区域中的金属电镀速率。
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公开(公告)号：US08470191B2
公开(公告)日：2013-06-25
申请号：US11890790
申请日：2007-08-06
申请人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
发明人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
IPC分类号： C23F1/02
CPC分类号： C25D17/14 , B23H5/08 , C25D5/02 , C25D5/06 , C25D5/08 , C25D5/34 , C25D7/123 , C25D17/001 , C25D17/06 , C25F3/16 , C25F3/30 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/3212 , H01L21/32134 , H01L21/7684 , H01L21/76849 , H01L21/76877
摘要： Plating accelerator is applied selectively to a substantially-unfilled wide (e.g., low-aspect-ratio feature cavity. Then, plating of metal is conducted to fill the wide feature cavity and to form an embossed structure in which the height of a wide-feature metal protrusion over the metal-filled wide-feature cavity is higher than the height of metal over field regions. Most of the overburden metal is removed using non-contact techniques, such as chemical wet etching. Metal above the wide feature cavity protects the metal-filled wide-feature interconnect against dishing, and improved planarization techniques avoid erosion of the metal interconnect and dielectric insulating layer. In some embodiments, plating of metal onto a substrate is conducted to fill narrow (e.g., high-aspect-ratio feature cavities) in the dielectric layer before selective application of plating accelerator and filling of the wide feature cavity.
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公开(公告)号：US08158532B2
公开(公告)日：2012-04-17
申请号：US11602128
申请日：2006-11-20
申请人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
发明人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
IPC分类号： H01L21/302
CPC分类号： C25D17/14 , B23H5/08 , C25D5/02 , C25D5/06 , C25D5/08 , C25D5/34 , C25D7/123 , C25D17/001 , C25D17/06 , C25F3/16 , C25F3/30 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/3212 , H01L21/32134 , H01L21/7684 , H01L21/76849 , H01L21/76877
摘要： Plating accelerator is applied selectively to a substantially-unfilled wide (e.g., low-aspect-ratio feature cavity. Then, plating of metal is conducted to fill the wide feature cavity and to form an embossed structure in which the height of a wide-feature metal protrusion over the metal-filled wide-feature cavity is higher than the height of metal over field regions. Most of the overburden metal is removed using non-contact techniques, such as chemical wet etching. Metal above the wide feature cavity protects the metal-filled wide-feature interconnect against dishing, and improved planarization techniques avoid erosion of the metal interconnect and dielectric insulating layer. In some embodiments, plating of metal onto a substrate is conducted to fill narrow (e.g., high-aspect-ratio feature cavities) in the dielectric layer before selective application of plating accelerator and filling of the wide feature cavity.
摘要翻译： 电镀加速器选择性地施加到基本上未填充的宽（例如，低纵横比特征空腔）上，然后进行金属电镀以填充宽特征空腔并形成压花结构，其中宽特征 在金属填充的宽特征空腔上的金属突起高于金属在场区域的高度，大多数覆盖层金属被使用非接触技术（例如化学湿法蚀刻）去除，在宽特征腔上方的金属保护金属 在一些实施例中，将金属电镀到衬底上以填充狭窄（例如，高纵横比特征腔），并且可以避免金属互连和介电绝缘层的侵蚀。 在介电层中选择性地施加电镀加速器和填充宽特征腔。
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公开(公告)号：US20090277867A1
公开(公告)日：2009-11-12
申请号：US11602128
申请日：2006-11-20
申请人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
发明人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
CPC分类号： C25D17/14 , B23H5/08 , C25D5/02 , C25D5/06 , C25D5/08 , C25D5/34 , C25D7/123 , C25D17/001 , C25D17/06 , C25F3/16 , C25F3/30 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/3212 , H01L21/32134 , H01L21/7684 , H01L21/76849 , H01L21/76877
摘要： Plating accelerator is applied selectively to a substantially-unfilled wide (e.g., low-aspect-ratio feature cavity. Then, plating of metal is conducted to fill the wide feature cavity and to form an embossed structure in which the height of a wide-feature metal protrusion over the metal-filled wide-feature cavity is higher than the height of metal over field regions. Most of the overburden metal is removed using non-contact techniques, such as chemical wet etching. Metal above the wide feature cavity protects the metal-filled wide-feature interconnect against dishing, and improved planarization techniques avoid erosion of the metal interconnect and dielectric insulating layer. In some embodiments, plating of metal onto a substrate is conducted to fill narrow (e.g., high-aspect-ratio feature cavities) in the dielectric layer before selective application of plating accelerator and filling of the wide feature cavity.
摘要翻译： 电镀加速器选择性地施加到基本上未填充的宽（例如，低纵横比特征空腔）上，然后进行金属电镀以填充宽特征空腔并形成压花结构，其中宽特征 在金属填充的宽特征空腔上的金属突起高于金属在场区域的高度，大多数覆盖层金属被使用非接触技术（例如化学湿法蚀刻）去除，在宽特征腔上方的金属保护金属 在一些实施例中，将金属电镀到衬底上以填充狭窄（例如，高纵横比特征腔），并且可以避免金属互连和介电绝缘层的侵蚀。 在介电层中选择性地施加电镀加速器和填充宽特征腔。
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公开(公告)号：US07799200B1
公开(公告)日：2010-09-21
申请号：US11544957
申请日：2006-10-05
IPC分类号： C25F3/00 , H01L21/288 , B23H3/00
CPC分类号： B23H5/08 , C25F3/16 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/7684
摘要： Methods and apparatus are provided for planar metal plating on a workpiece having a surface with recessed regions and exposed surface regions; comprising the steps of: causing a plating accelerator to become attached to said surface including the recessed and exposed surface regions; selectively removing the plating accelerator from the exposed surface regions without performing substantial metal plating on the surface; and after removal of plating accelerator is at least partially complete, plating metal onto the surface, whereby the plating accelerator remaining attached to the surface increases the rate of metal plating in the recessed regions relative to the rate of metal plating in the exposed surface regions.
摘要翻译： 提供了用于在具有凹陷区域和暴露表面区域的表面的工件上进行平面金属电镀的方法和装置; 包括以下步骤：使电镀加速器附着到包括凹入和暴露的表面区域的所述表面; 选择性地从暴露的表面区域去除电镀加速器，而不在表面上进行实质的金属电镀; 在去除电镀促进剂至少部分完成后，将金属镀在表面上，由此保持附着在表面上的电镀加速剂相对于露出的表面区域中的金属电镀速率增加凹陷区域中的金属电镀速率。
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公开(公告)号：US20090280649A1
公开(公告)日：2009-11-12
申请号：US11890790
申请日：2007-08-06
申请人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
发明人： Steven T. Mayer , Mark L. Rea , Richard S. Hill , Avishai Kepten , R. Marshall Stowell , Eric G. Webb
IPC分类号： H01L21/44 , C25D17/00 , H01L21/306
CPC分类号： C25D17/14 , B23H5/08 , C25D5/02 , C25D5/06 , C25D5/08 , C25D5/34 , C25D7/123 , C25D17/001 , C25D17/06 , C25F3/16 , C25F3/30 , H01L21/02068 , H01L21/2885 , H01L21/32115 , H01L21/3212 , H01L21/32134 , H01L21/7684 , H01L21/76849 , H01L21/76877
摘要： Plating accelerator is applied selectively to a substantially-unfilled wide (e.g., low-aspect-ratio feature cavity. Then, plating of metal is conducted to fill the wide feature cavity and to form an embossed structure in which the height of a wide-feature metal protrusion over the metal-filled wide-feature cavity is higher than the height of metal over field regions. Most of the overburden metal is removed using non-contact techniques, such as chemical wet etching. Metal above the wide feature cavity protects the metal-filled wide-feature interconnect against dishing, and improved planarization techniques avoid erosion of the metal interconnect and dielectric insulating layer. In some embodiments, plating of metal onto a substrate is conducted to fill narrow (e.g., high-aspect-ratio feature cavities) in the dielectric layer before selective application of plating accelerator and filling of the wide feature cavity.
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公开(公告)号：US07686927B1
公开(公告)日：2010-03-30
申请号：US11510048
申请日：2006-08-25
申请人： Jonathan D. Reid , Steven T. Mayer , Seshasayee Varadarajan , David C. Smith , Evan E. Patton , Dinesh S. Kalakkad , Gary Lind , Richard S. Hill
发明人： Jonathan D. Reid , Steven T. Mayer , Seshasayee Varadarajan , David C. Smith , Evan E. Patton , Dinesh S. Kalakkad , Gary Lind , Richard S. Hill
IPC分类号： C25D17/00
CPC分类号： H01L21/2885 , C25D17/001 , Y10S414/135 , Y10S414/136
摘要： The orientation of a wafer with respect to the surface of an electrolyte is controlled during an electroplating process. The wafer is delivered to an electrolyte bath along a trajectory normal to the surface of the electrolyte. Along this trajectory, the wafer is angled before entry into the electrolyte for angled immersion. A wafer can be plated in an angled orientation or not, depending on what is optimal for a given situation. Also, in some designs, the wafer's orientation can be adjusted actively during immersion or during electroplating, providing flexibility in various electroplating scenarios.
摘要翻译： 在电镀过程中控制晶片相对于电解质表面的取向。 将晶片沿着垂直于电解质表面的轨迹输送到电解质浴中。 沿着该轨迹，晶片在进入电解质之前是成角度的，用于倾斜的浸入。 根据给定情况下的最佳选择，晶圆可以以倾斜的方向进行电镀。 此外，在一些设计中，晶片的取向可以在浸入期间或在电镀期间被主动调节，从而在各种电镀场景中提供灵活性。
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公开(公告)号：US07097410B1
公开(公告)日：2006-08-29
申请号：US10379858
申请日：2003-03-04
申请人： Jonathan D. Reid , Steven T. Mayer , Seshasayee Varadarajan , David C. Smith , Evan E. Patton , Dinesh S. Kalakkad , Gary Lind , Richard S. Hill
发明人： Jonathan D. Reid , Steven T. Mayer , Seshasayee Varadarajan , David C. Smith , Evan E. Patton , Dinesh S. Kalakkad , Gary Lind , Richard S. Hill
CPC分类号： H01L21/2885 , C25D17/001 , Y10S414/135 , Y10S414/136
摘要： The orientation of a wafer with respect to the surface of an electrolyte is controlled during an electroplating process. The wafer is delivered to an electrolyte bath along a trajectory normal to the surface of the electrolyte. Along this trajectory, the wafer is angled before entry into the electrolyte for angled immersion. A wafer can be plated in an angled orientation or not, depending on what is optimal for a given situation. Also, in some designs, the wafer's orientation can be adjusted actively during immersion or during electroplating, providing flexibility in various electroplating scenarios.
摘要翻译： 在电镀过程中控制晶片相对于电解质表面的取向。 将晶片沿着垂直于电解质表面的轨迹输送到电解质浴中。 沿着该轨迹，晶片在进入电解质之前是成角度的，用于倾斜的浸入。 根据给定情况下的最佳选择，晶圆可以以倾斜的方向进行电镀。 此外，在一些设计中，晶片的取向可以在浸入期间或在电镀期间被主动调节，从而在各种电镀场景中提供灵活性。
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公开(公告)号：US08133797B2
公开(公告)日：2012-03-13
申请号：US12122614
申请日：2008-05-16
IPC分类号： H01L21/76
CPC分类号： H01L21/76224 , C23C16/045 , C23C16/401 , H01L21/76801
摘要： In-situ semiconductor process that can fill high aspect ratio (typically at least 6:1, for example 7:1 or higher), narrow width (typically sub 0.13 micron, for example 0.1 micron or less) gaps without damaging underlying features and little or no incidence of voids or weak spots is provided. A protective layer is deposited to protect underlying features in regions of the substrate having lower feature density so that unwanted material may be removed from regions of the substrate having higher feature density. This protective layer may deposits thicker on a low density feature than on a high density feature and may be deposited using a PECVD process or low sputter/deposition ratio HDP CVD process. This protective layer may also be a metallic oxide layer that is resistant to fluorine etching, such as zirconium oxide (ZrO2) or aluminum oxide (Al2O3).
摘要翻译： 可以填充高纵横比（通常至少6:1，例如7:1或更高），窄宽度（通常为0.13微米，例如0.1微米或更小）的间隙的原位半导体工艺，而不损坏底层特征和少量 或者不提供空隙或弱点的发生。 沉积保护层以保护具有较低特征密度的衬底区域中的底层特征，使得可以从具有较高特征密度的衬底的区域去除不需要的材料。 该保护层可以在低密度特征上比在高密度特征上沉积更厚，并且可以使用PECVD工艺或低溅射/沉积比HDP CVD工艺沉积。 该保护层也可以是耐氟蚀刻的金属氧化物层，例如氧化锆（ZrO 2）或氧化铝（Al 2 O 3）。
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