公开(公告)号：US07071100B2

公开(公告)日：2006-07-04

申请号：US10788912

申请日：2004-02-27

申请人： Kei-Wei Chen ,  Jung-Chih Tsao ,  Chi-Wen Liu ,  Jchung-Chang Chen ,  Shih-Tzung Chang ,  Shih-Ho Lin ,  Yu-Ku Lin ,  Ying-Lang Wang

发明人： Kei-Wei Chen ,  Jung-Chih Tsao ,  Chi-Wen Liu ,  Jchung-Chang Chen ,  Shih-Tzung Chang ,  Shih-Ho Lin ,  Yu-Ku Lin ,  Ying-Lang Wang

IPC分类号： H01L21/4763

CPC分类号： H01L21/76844 ,  H01L21/76807 ,  H01L21/76862 ,  H01L21/76865

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。

公开(公告)号：US20050191855A1

公开(公告)日：2005-09-01

申请号：US10788912

申请日：2004-02-27

申请人： Kei-Wei Chen ,  Jung-Chih Tsao ,  Chi-Wen Liu ,  Jchung-Chang Chen ,  Shih-Tzung Chang ,  Shih-Ho Lin ,  Yu-Ku Lin ,  Ying-Lang Wang

发明人： Kei-Wei Chen ,  Jung-Chih Tsao ,  Chi-Wen Liu ,  Jchung-Chang Chen ,  Shih-Tzung Chang ,  Shih-Ho Lin ,  Yu-Ku Lin ,  Ying-Lang Wang

IPC分类号： H01L21/44 ,  H01L21/768

CPC分类号： H01L21/76844 ,  H01L21/76807 ,  H01L21/76862 ,  H01L21/76865

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。

公开(公告)号：US20050056544A1

公开(公告)日：2005-03-17

申请号：US10664347

申请日：2003-09-16

申请人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Ke-Wei Chen ,  Ying-Lang Wang

发明人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Ke-Wei Chen ,  Ying-Lang Wang

IPC分类号： C25D5/02 ,  C25D5/48 ,  B23H7/26

CPC分类号： C25D5/48 ,  C25D5/028 ,  Y10S204/07

摘要： A dual contact ring for contacting a patterned surface of a wafer and electrochemical plating of a metal on the patterned central region of the wafer and removing the metal from the outer, edge region of the wafer. The dual contact ring has an outer voltage ring in contact with the outer, edge region of the wafer and an inner voltage ring in contact with the inner, central region of the wafer. The outer voltage ring is connected to a positive voltage source and the inner voltage ring is connected to a negative voltage source. The inner voltage ring applies a negative voltage to the wafer to facilitate the plating of metal onto the patterned region of the wafer. A positive voltage is applied to the wafer through the outer voltage ring to remove the plated metal from the outer, edge region of the substrate.

摘要翻译： 用于接触晶片的图案化表面的双接触环和在晶片的图案化中心区域上的金属的电化学电镀，并从晶片的外边缘区域移除金属。 双接触环具有与晶片的外部边缘区域接触的外部电压环和与晶片的内部中心区域接触的内部电压环。 外部电压环连接到正电压源，内部电压环连接到负电压源。 内部电压环向晶片施加负电压以便于将金属电镀到晶片的图案化区域上。 通过外部电压环将正电压施加到晶片，以从衬底的外部边缘区域去除镀覆的金属。

公开(公告)号：US07252750B2

公开(公告)日：2007-08-07

申请号：US10664347

申请日：2003-09-16

申请人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Ke-Wei Chen ,  Ying-Lang Wang

发明人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Ke-Wei Chen ,  Ying-Lang Wang

IPC分类号： C25D17/00

CPC分类号： C25D5/48 ,  C25D5/028 ,  Y10S204/07

摘要： A dual contact ring for contacting a patterned surface of a wafer and electrochemical plating of a metal on the patterned central region of the wafer and removing the metal from the outer, edge region of the wafer. The dual contact ring has an outer voltage ring in contact with the outer, edge region of the wafer and an inner voltage ring in contact with the inner, central region of the wafer. The outer voltage ring is connected to a positive voltage source and the inner voltage ring is connected to a negative voltage source. The inner voltage ring applies a negative voltage to the wafer to facilitate the plating of metal onto the patterned region of the wafer. A positive voltage is applied to the wafer through the outer voltage ring to remove the plated metal from the outer, edge region of the substrate.

摘要翻译： 用于接触晶片的图案化表面的双接触环和在晶片的图案化中心区域上的金属的电化学电镀，并从晶片的外边缘区域移除金属。 双接触环具有与晶片的外部边缘区域接触的外部电压环和与晶片的内部中心区域接触的内部电压环。 外部电压环连接到正电压源，内部电压环连接到负电压源。 内部电压环向晶片施加负电压以便于将金属电镀到晶片的图案化区域上。 通过外部电压环将正电压施加到晶片，以从衬底的外部边缘区域去除镀覆的金属。

公开(公告)号：US20050255642A1

公开(公告)日：2005-11-17

申请号：US10842454

申请日：2004-05-11

申请人： Chi-Wen Liu ,  Jung-Chih Tsao

发明人： Chi-Wen Liu ,  Jung-Chih Tsao

IPC分类号： H01L21/28 ,  H01L21/302 ,  H01L21/3105 ,  H01L21/321 ,  H01L21/336 ,  H01L21/338 ,  H01L21/461 ,  H01L21/4763 ,  H01L21/768 ,  H01L29/49

CPC分类号： H01L21/76885 ,  H01L21/28079 ,  H01L21/31053 ,  H01L21/3212 ,  H01L21/7684 ,  H01L29/495 ,  H01L29/66545 ,  H01L29/66583

摘要： A method of fabricating an inlaid structure. A sacrificial layer having a trench opening over a substrate is provided. A metal layer is deposited over the sacrificial layer filling the trench openings. A first CMP is performed to remove excess metal layer above the sacrificial layer to form an interconnect structure. The sacrificial layer is removed to expose the interconnect structure. A first dielectric layer is deposited over the substrate covering the interconnect structure. A second CMP is performed on the first dielectric layer to planarize the first dielectric layer.

摘要翻译： 一种制造镶嵌结构的方法。 提供了在衬底上具有沟槽开口的牺牲层。 在填充沟槽开口的牺牲层上沉积金属层。 执行第一CMP以去除牺牲层上方的多余金属层以形成互连结构。 去除牺牲层以露出互连结构。 在覆盖互连结构的衬底上沉积第一介电层。 在第一电介质层上执行第二CMP以使第一电介质层平坦化。

公开(公告)号：US20050118808A1

公开(公告)日：2005-06-02

申请号：US10724201

申请日：2003-12-01

申请人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Shien-Ping Feng ,  Kei-Wei Chen ,  Shih-Chi Lin ,  Ray Chuang

发明人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Shien-Ping Feng ,  Kei-Wei Chen ,  Shih-Chi Lin ,  Ray Chuang

IPC分类号： H01L21/302 ,  H01L21/321 ,  H01L21/44 ,  H01L21/4763 ,  H01L21/768

CPC分类号： H01L21/3212 ,  H01L21/7684

摘要： A method of reducing the pattern effect in the CMP process. The method comprises the steps of providing a semiconductor substrate having a patterned dielectric layer, a barrier layer on the patterned dielectric layer, and a conductive layer on the barrier layer; performing a first CMP process to remove part of the conductive layer before the barrier layer is polished, thereby a step height of the conductive layer is reduced; depositing a layer of material substantially the same as the conductive layer on the conductive layer; and performing a second CMP process to expose the dielectric layer. A method of eliminating the dishing phenomena after a CMP process and a CMP rework method are also provided.

摘要翻译： 降低CMP工艺中图案效果的方法。 该方法包括以下步骤：提供具有图案化介电层的半导体衬底，图案化电介质层上的阻挡层和阻挡层上的导电层; 在阻挡层被抛光之前执行第一CMP工艺以去除导电层的一部分，从而降低导电层的台阶高度; 在导电层上沉积与导电层基本相同的材料层; 以及执行第二CMP工艺以暴露所述电介质层。 还提供了在CMP处理和CMP返工方法之后消除凹陷现象的方法。

公开(公告)号：US07183199B2

公开(公告)日：2007-02-27

申请号：US10724201

申请日：2003-12-01

申请人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Shien-Ping Feng ,  Kei-Wei Chen ,  Shih-Chi Lin ,  Ray Chuang

发明人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Shien-Ping Feng ,  Kei-Wei Chen ,  Shih-Chi Lin ,  Ray Chuang

IPC分类号： H01L21/4763

CPC分类号： H01L21/3212 ,  H01L21/7684

摘要： A method of reducing the pattern effect in the CMP process. The method comprises the steps of providing a semiconductor substrate having a patterned dielectric layer, a barrier layer on the patterned dielectric layer, and a conductive layer on the barrier layer; performing a first CMP process to remove part of the conductive layer before the barrier layer is polished, thereby a step height of the conductive layer is reduced; depositing a layer of material substantially the same as the conductive layer on the conductive layer; and performing a second CMP process to expose the dielectric layer. A method of eliminating the dishing phenomena after a CMP process and a CMP rework method are also provided.

摘要翻译： 降低CMP工艺中图案效果的方法。 该方法包括以下步骤：提供具有图案化介电层的半导体衬底，图案化电介质层上的阻挡层和阻挡层上的导电层; 在阻挡层被抛光之前执行第一CMP工艺以去除导电层的一部分，从而降低导电层的台阶高度; 在导电层上沉积与导电层基本相同的材料层; 以及执行第二CMP工艺以暴露所述电介质层。 还提供了在CMP处理和CMP返工方法之后消除凹陷现象的方法。

公开(公告)号：US20050275941A1

公开(公告)日：2005-12-15

申请号：US10854061

申请日：2004-05-26

申请人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Shih-Tzung Chang ,  Ying-Lang Wang ,  Kei-Wei Chen

发明人： Chi-Wen Liu ,  Jung-Chih Tsao ,  Shih-Tzung Chang ,  Ying-Lang Wang ,  Kei-Wei Chen

IPC分类号： G02B23/00 ,  H01L21/768 ,  H01L21/82

CPC分类号： H01L21/7684 ,  H01L21/76877

摘要： A method of forming a metal-filled opening in a semiconductor or other submicron device substrate includes forming a conductive bulk layer over the substrate surface and in the opening, wherein the conductive bulk layer has a first grain size. A conductive cap layer is formed over the conductive bulk layer, the conductive cap layer having a second grain size that is substantially smaller than the first grain size. At least one of the conductive bulk and cap layers are then planarized to form a planar surface that is substantially coincident with the substrate surface.

摘要翻译： 在半导体或其他亚微米器件衬底中形成填充金属的开口的方法包括在衬底表面和开口中形成导电体层，其中导电体层具有第一晶粒尺寸。 导电盖层形成在导电体层之上，导电盖层具有基本上小于第一晶粒尺寸的第二晶粒尺寸。 导电体和盖层中的至少一个然后被平坦化以形成基本上与衬底表面重合的平坦表面。

公开(公告)号：US20050121329A1

公开(公告)日：2005-06-09

申请号：US10731331

申请日：2003-12-05

申请人： Jung-Chih Tsao ,  Kei-Wei Chen ,  Chi-Wen Liu ,  Shi-Chi Lin ,  Ray Chuang

发明人： Jung-Chih Tsao ,  Kei-Wei Chen ,  Chi-Wen Liu ,  Shi-Chi Lin ,  Ray Chuang

IPC分类号： C25D5/02 ,  C25D5/06 ,  C25D7/12 ,  C25D17/14 ,  H01L21/288

CPC分类号： H01L21/2885 ,  C25D5/06 ,  C25D17/001 ,  C25D17/14

摘要： A thrust pad assembly which is capable of reducing the quantity of metal electroplated onto the edge region of a substrate to eliminate or reduce the need for edge bevel cleaning or removal of excess metal from the substrate after the electroplating process. The thrust pad assembly includes an air platen through which air is applied at variable pressures to the central and edge regions, respectively, of a thrust pad. The thrust pad applies pressure to a contact ring connected to an electroplating voltage source. The contact ring applies relatively less pressure to the edge region than to the central region of the substrate, thereby reducing the ohmic contact.

摘要翻译： 一种止推垫组件，其能够减少电镀到基板的边缘区域上的金属的量，以消除或减少在电镀工艺之后边缘斜面清洁或从基板上去除多余的金属的需要。 推力垫组件包括空气压板，空气压板分别通过空气压板以可变的压力施加到推力垫的中心和边缘区域。 推力垫对连接到电镀电压源的接触环施加压力。 接触环对边缘区域的压力相对于衬底的中心区域施加相对较小的压力，由此减小欧姆接触。

公开(公告)号：US07256120B2

公开(公告)日：2007-08-14

申请号：US11024917

申请日：2004-12-28

申请人： Jung-Chin Tsao ,  Chi-Wen Liu ,  Hsien-Ping Feng ,  Hsi-Kuei Cheng ,  Steven Lin ,  Min-Yuan Cheng

发明人： Jung-Chin Tsao ,  Chi-Wen Liu ,  Hsien-Ping Feng ,  Hsi-Kuei Cheng ,  Steven Lin ,  Min-Yuan Cheng

IPC分类号： H01L21/4763

CPC分类号： H01L21/76843 ,  H01L21/02068 ,  H01L21/76861 ,  H01L21/76862 ,  H01L21/76873 ,  H01L21/76876

摘要： A method of forming a metal layer with reduced defects comprising providing a structure having a dielectric layer formed over it, forming a dielectric layer having an opening, lining the opening with a metal seed layer, treating the metal seed layer with a cleaning process to remove contaminates from it, and forming a metal layer upon the metal seed layer.

摘要翻译： 一种形成具有减少的缺陷的金属层的方法，包括提供其上形成有电介质层的结构，形成具有开口的电介质层，用金属种子层衬套开口，用清洁工艺处理金属种子层以除去 从其中污染，并在金属种子层上形成金属层。