公开(公告)号：US07692439B2

公开(公告)日：2010-04-06

申请号：US12154304

申请日：2008-05-22

申请人： Kaushik Chanda ,  Birendra Agarwala ,  Lawrence A. Clevenger ,  Andrew P. Cowley ,  Ronald G. Filippi ,  Jason P. Gill ,  Tom C. Lee ,  Baozhen Li ,  Paul S. McLaughlin ,  Du B. Nguyen ,  Hazara S. Rathore ,  Timothy D. Sullivan ,  Chih-Chao Yang

发明人： Kaushik Chanda ,  Birendra Agarwala ,  Lawrence A. Clevenger ,  Andrew P. Cowley ,  Ronald G. Filippi ,  Jason P. Gill ,  Tom C. Lee ,  Baozhen Li ,  Paul S. McLaughlin ,  Du B. Nguyen ,  Hazara S. Rathore ,  Timothy D. Sullivan ,  Chih-Chao Yang

IPC分类号： G01R31/02 ,  H01L23/58 ,  G01N25/20

CPC分类号： G01R31/2858 ,  H01L22/34 ,  H01L2924/0002 ,  H01L2924/00

摘要： A structure representative of a conductive interconnect of a microelectronic element is provided, which may include a conductive metallic plate having an upper surface, a lower surface, and a plurality of peripheral edges extending between the upper and lower surfaces, the upper surface defining a horizontally extending plane. The structure may also include a lower via having a top end in conductive communication with the metallic plate and a bottom end vertically displaced from the top end. A lower conductive or semiconductive element can be in contact with the bottom end of the lower via. An upper metallic via can lie in at least substantial vertical alignment with the lower conductive via, the upper metallic via having a bottom end in conductive communication with the metallic plate and a top end vertically displaced from the bottom end. The upper metallic via may have a width at least about ten times than the length of the metallic plate and about ten times smaller than the width of the metallic plate. The structure may further include an upper metallic line element in contact with the top end of the upper metallic via.

摘要翻译： 提供了表示微电子元件的导电互连的结构，其可以包括具有上表面，下表面和在上表面和下表面之间延伸的多个周边边缘的导电金属板，上表面限定水平 延伸平面 该结构还可以包括具有与金属板导电连通的顶端和从顶端垂直移位的底端的下通孔。 下导电或半导体元件可以与下通孔的底端接触。 上金属通孔可以与下导电通孔至少基本垂直对准，上金属通孔具有与金属板导电连通的底端和从底端垂直移位的顶端。 上部金属通孔的宽度可以比金属板的长度至少大约十倍，并且比金属板的宽度小约十倍。 该结构还可以包括与上金属通孔的顶端接触的上金属线元件。

公开(公告)号：US08912658B2

公开(公告)日：2014-12-16

申请号：US12915510

申请日：2010-10-29

申请人： Ronald Filippi ,  Ping-Chuan Wang ,  Griselda Bonilla ,  Kaushik Chanda ,  Robert D. Edwards ,  Andrew H. Simon

发明人： Ronald Filippi ,  Ping-Chuan Wang ,  Griselda Bonilla ,  Kaushik Chanda ,  Robert D. Edwards ,  Andrew H. Simon

IPC分类号： H01L23/48 ,  H01L23/52 ,  H01L29/40 ,  H01L23/532 ,  H01L21/768

CPC分类号： H01L21/76834 ,  H01L21/76819 ,  H01L21/76829 ,  H01L21/76849 ,  H01L23/53223 ,  H01L23/53238 ,  H01L23/53266 ,  H01L2924/0002 ,  H01L2924/00

摘要： An improved interconnect structure including a dielectric layer having a conductive feature embedded therein, the conductive feature having a first top surface that is substantially coplanar with a second top surface of the dielectric layer; a metal cap layer located directly on the first top surface, wherein the metal cap layer does not substantially extend onto the second top surface; a first dielectric cap layer located directly on the second top surface, wherein the first dielectric cap layer does not substantially extend onto the first top surface and the first dielectric cap layer is thicker than the metal cap layer; and a second dielectric cap layer on the metal cap layer and the first dielectric cap layer. A method of forming the interconnect structure is also provided.

摘要翻译： 一种改进的互连结构，其包括具有嵌入其中的导电特征的介电层，所述导电特征具有与介电层的第二顶表面基本共面的第一顶表面; 金属盖层直接位于第一顶表面上，其中金属盖层基本上不延伸到第二顶表面上; 位于所述第二顶表面上的第一电介质盖层，其中所述第一电介质盖层基本上不延伸到所述第一顶表面上，并且所述第一电介质盖层比所述金属盖层厚; 以及金属盖层和第一电介质盖层上的第二电介质盖层。 还提供了形成互连结构的方法。

公开(公告)号：US08535991B2

公开(公告)日：2013-09-17

申请号：US12688254

申请日：2010-01-15

申请人： Kaushik Chanda ,  Lynne M. Gignac ,  Wai-Kin Li ,  Ping-Chuan Wang

发明人： Kaushik Chanda ,  Lynne M. Gignac ,  Wai-Kin Li ,  Ping-Chuan Wang

IPC分类号： H01L21/82

CPC分类号： G11C17/16 ,  H01L21/7682 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

摘要： An electrically reprogrammable fuse comprising an interconnect disposed in a dielectric material, a sensing wire disposed at a first end of the interconnect, a first programming wire disposed at a second end of the interconnect, and a second programming wire disposed at a second end of the interconnect, wherein the fuse is operative to form a surface void at the interface between the interconnect and the sensing wire when a first directional electron current is applied from the first programming wire through the interconnect to the second programming wire, and wherein, the fuse is further operative to heal the surface void between the interconnect and the sensing wire when a second directional electron current is applied from the second programming wire through the interconnect to the first programming wire.

摘要翻译： 一种电可重新编程的保险丝，其包括设置在电介质材料中的互连，布置在所述互连的第一端的感测线，布置在所述互连的第二端的第一编程线，以及设置在所述互连的第二端的第二编程线 其中当从所述第一编程线通过所述互连件施加第一定向电子线到所述第二编程线时，所述保险丝可操作以在所述互连和感测线之间的界面处形成表面空隙，并且其中，所述保险丝是 当从所述第二编程线通过所述互连件施加第二编程线到所述第一编程线时，还可操作以治愈所述互连和所述感测线之间的表面空隙。

公开(公告)号：US20070158851A1

公开(公告)日：2007-07-12

申请号：US11306825

申请日：2006-01-12

申请人： Kaushik Chanda ,  James Demarest ,  Ronald Filippi ,  Roy Iggulden ,  Edward Kiewra ,  Vincent McGahay ,  Ping-Chuan Wang ,  Yun-Yu Wang

发明人： Kaushik Chanda ,  James Demarest ,  Ronald Filippi ,  Roy Iggulden ,  Edward Kiewra ,  Vincent McGahay ,  Ping-Chuan Wang ,  Yun-Yu Wang

IPC分类号： H01L21/4763 ,  H01L23/48

CPC分类号： H01L23/53238 ,  H01L21/76846 ,  H01L23/5283 ,  H01L2924/0002 ,  H01L2924/00

摘要： In the back end of an integrated circuit employing dual-damascene interconnects, the interconnect members have a first non-conformal liner that has a thicker portion at the top of the trench level of the interconnect; and a conformal second liner that combines with the first liner to block diffusion of the metal fill material.

摘要翻译： 在采用双镶嵌互连的集成电路的后端中，互连构件具有第一非保形衬套，其在互连的沟槽级的顶部具有较厚的部分; 以及与第一衬垫结合以阻挡金属填充材料的扩散的共形第二衬垫。

公开(公告)号：US20090072406A1

公开(公告)日：2009-03-19

申请号：US11856970

申请日：2007-09-18

申请人： Chih-Chao Yang ,  Ping-Chuan Wang ,  Kaushik Chanda

发明人： Chih-Chao Yang ,  Ping-Chuan Wang ,  Kaushik Chanda

IPC分类号： H01L21/31

CPC分类号： H01L21/76843 ,  H01L21/76846 ,  H01L23/53238 ,  H01L2924/0002 ,  H01L2924/00

摘要： An interconnect structure in which the electromigration resistance thereof is improved without introducing a gouging feature within the interconnect structure is provided. The interconnect structure includes a metallic interfacial layer that is at least horizontally present at the bottom of an opening located within a second dielectric material that is located atop a first dielectric material that includes a first conductive material embedded therein. The metallic interfacial layer does not form an alloy with an underlying conductive material that is embedded within the first dielectric material. In some embodiments of the present invention, the metallic interfacial layer is also present on exposed sidewalls of the second dielectric material that is located atop the first dielectric material. Atop the metallic interfacial layer there is present a diffusion barrier liner. In some embodiments, the diffusion barrier liner includes a lower layer of a metallic nitride and an upper layer of a metal. In accordance with the present invention, the metallic interfacial layer also does not form an alloy with any portion of the diffusion barrier liner.

摘要翻译： 提供了一种互连结构，其中在不引入互连结构内的气蚀特征的情况下，其电迁移阻力得到改善。 互连结构包括金属界面层，其至少水平存在于位于第二介电材料内的开口的底部，该第二电介质材料位于第一电介质材料的顶部，该第一介电材料包括嵌入其中的第一导电材料。 金属界面层不与嵌入在第一介电材料内的下面的导电材料形成合金。 在本发明的一些实施例中，金属界面层也存在于位于第一介电材料顶部的第二介电材料的暴露的侧壁上。 在金属界面层顶部存在扩散阻挡层。 在一些实施例中，扩散阻挡衬里包括金属氮化物的下层和金属的上层。 根据本发明，金属界面层也不与扩散阻挡衬里的任何部分形成合金。

公开(公告)号：US20060254053A1

公开(公告)日：2006-11-16

申请号：US10908392

申请日：2005-05-10

申请人： Kaushik Chanda ,  James Demarest ,  Ronald Filippi ,  Roy Iggulden ,  Edward Kiewra ,  Ping-Chuan Wang ,  Yun-Yu Wang

发明人： Kaushik Chanda ,  James Demarest ,  Ronald Filippi ,  Roy Iggulden ,  Edward Kiewra ,  Ping-Chuan Wang ,  Yun-Yu Wang

IPC分类号： H05K3/02 ,  H01K3/10 ,  B24B1/00

CPC分类号： B24B37/042 ,  H01L21/31144 ,  H01L21/76834 ,  H01L21/7684 ,  H01L21/76849 ,  H01L21/76852 ,  H01L21/76885 ,  Y10T29/49156 ,  Y10T29/49165 ,  Y10T29/49204

摘要： Disclosed are a damascene and dual damascene processes both of which incorporate the use of a release layer to remove trace amounts of residual material between metal interconnect lines. The release layer is deposited onto a dielectric layer. The release layer comprises an organic material, a dielectric material, a metal or a metal nitride. Trenches are etched into the dielectric layer. The trenches are lined with a liner and filled with a conductor. The conductor and liner materials are polished off the release layer. However, trace amounts of the residual material may remain. The release layer is removed (e.g., by an appropriate solvent or wet etching process) to remove the residual material. If the trench is formed such that the release layer overlaps the walls of the trench, then when the release layer is removed another dielectric layer can be deposited that reinforces the corners around the top of the metal interconnect line.

摘要翻译： 公开了一种镶嵌和双镶嵌工艺，其中两者都结合使用剥离层以在金属互连线之间移除痕量的残余材料。 释放层沉积在电介质层上。 释放层包括有机材料，电介质材料，金属或金属氮化物。 沟槽蚀刻到电介质层中。 沟槽内衬衬里，填充导体。 导体和衬里材料从剥离层抛光。 然而，痕量的剩余材料可能会残留。 去除脱模层（例如，通过适当的溶剂或湿蚀刻工艺）以除去残留的材料。 如果沟槽形成为使得剥离层与沟槽的壁重叠，则当除去剥离层时，可以沉积另外的介电层，加强围绕金属互连线的顶部的拐角。

公开(公告)号：US20120104610A1

公开(公告)日：2012-05-03

申请号：US12915510

申请日：2010-10-29

申请人： Ronald Filippi ,  Ping-Chuan Wang ,  Griselda Bonilla ,  Kaushik Chanda ,  Robert D. Edwards ,  Andrew H. Simon

发明人： Ronald Filippi ,  Ping-Chuan Wang ,  Griselda Bonilla ,  Kaushik Chanda ,  Robert D. Edwards ,  Andrew H. Simon

IPC分类号： H01L23/52 ,  H01L21/768

CPC分类号： H01L21/76834 ,  H01L21/76819 ,  H01L21/76829 ,  H01L21/76849 ,  H01L23/53223 ,  H01L23/53238 ,  H01L23/53266 ,  H01L2924/0002 ,  H01L2924/00

摘要： An improved interconnect structure including a dielectric layer having a conductive feature embedded therein, the conductive feature having a first top surface that is substantially coplanar with a second top surface of the dielectric layer; a metal cap layer located directly on the first top surface, wherein the metal cap layer does not substantially extend onto the second top surface; a first dielectric cap layer located directly on the second top surface, wherein the first dielectric cap layer does not substantially extend onto the first top surface and the first dielectric cap layer is thicker than the metal cap layer; and a second dielectric cap layer on the metal cap layer and the first dielectric cap layer. A method of forming the interconnect structure is also provided.

摘要翻译： 一种改进的互连结构，其包括具有嵌入其中的导电特征的介电层，所述导电特征具有与介电层的第二顶表面基本共面的第一顶表面; 金属盖层直接位于第一顶表面上，其中金属盖层基本上不延伸到第二顶表面上; 位于所述第二顶表面上的第一电介质盖层，其中所述第一电介质盖层基本上不延伸到所述第一顶表面上，并且所述第一电介质盖层比所述金属盖层厚; 以及金属盖层和第一电介质盖层上的第二电介质盖层。 还提供了形成互连结构的方法。

公开(公告)号：US07745282B2

公开(公告)日：2010-06-29

申请号：US11675705

申请日：2007-02-16

申请人： Chih-Chao Yang ,  Kaushik Chanda ,  Ping-Chuan Wang

发明人： Chih-Chao Yang ,  Kaushik Chanda ,  Ping-Chuan Wang

IPC分类号： H01L21/8242 ,  H01L21/4763 ,  H01L21/22 ,  H01L21/38

CPC分类号： H01L21/76849 ,  H01L21/76826 ,  H01L21/76829 ,  H01L21/76834 ,  H01L21/76856 ,  H01L21/76883 ,  H01L21/76885 ,  H01L23/53223 ,  H01L23/53238 ,  H01L23/53252 ,  H01L23/53266 ,  H01L2924/0002 ,  H01L2924/00

摘要： A structure and method of fabricating an interconnect structures with bi-layer metal cap is provided. In one embodiment, the method includes forming an interconnect feature in a dielectric material layer; and forming a bi-layer metallic cap on a top surface of the interconnect feature. The method further includes depositing a blanket layer of a dielectric capping layer, wherein the depositing covers an exposed surface of the dielectric material layer and a surface of the bi-layer metallic cap. The bi-layer metallic cap includes a metal capping layer formed on a conductive surface of the interconnect feature; and a metal nitride formed on a top portion of the metal capping layer. An interconnect structure is also described having an interconnect feature formed in a dielectric layer; a bi-layer metallic cap formed on a top portion of the interconnect feature; and a dielectric capping layer formed over the bi-layer metallic cap.

摘要翻译： 提供了制造具有双层金属盖的互连结构的结构和方法。 在一个实施例中，该方法包括在电介质材料层中形成互连特征; 以及在所述互连特征的顶表面上形成双层金属帽。 该方法还包括沉积介电覆盖层的覆盖层，其中沉积覆盖电介质材料层的暴露表面和双层金属帽的表面。 双层金属盖包括形成在互连特征的导电表面上的金属覆盖层; 以及形成在金属覆盖层的顶部上的金属氮化物。 还描述了具有形成在电介质层中的互连特征的互连结构; 形成在互连特征的顶部上的双层金属帽; 以及形成在双层金属盖上的电介质覆盖层。

公开(公告)号：US20090045484A1

公开(公告)日：2009-02-19

申请号：US11839716

申请日：2007-08-16

申请人： Kaushik Chanda ,  Lynne M. Gignac ,  Wai-Kin Li ,  Ping-Chuan Wang

发明人： Kaushik Chanda ,  Lynne M. Gignac ,  Wai-Kin Li ,  Ping-Chuan Wang

IPC分类号： H01L23/52 ,  H01H37/76 ,  H01L23/525 ,  H01L21/44 ,  H01L29/00

CPC分类号： G11C17/16 ,  H01L21/7682 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

摘要： An electrically reprogrammable fuse comprising an interconnect disposed in a dielectric material, a sensing wire disposed at a first end of the interconnect, a first programming wire disposed at a second end of the interconnect, and a second programming wire disposed at a second end of the interconnect, wherein the fuse is operative to form a surface void at the interface between the interconnect and the sensing wire when a first directional electron current is applied from the first programming wire through the interconnect to the second programming wire, and wherein, the fuse is further operative to heal the surface void between the interconnect and the sensing wire when a second directional electron current is applied from the second programming wire through the interconnect to the first programming wire.

摘要翻译： 一种电可重新编程的保险丝，其包括设置在电介质材料中的互连，布置在所述互连的第一端的感测线，布置在所述互连的第二端的第一编程线，以及设置在所述互连的第二端的第二编程线 其中当从所述第一编程线通过所述互连件施加第一定向电子线到所述第二编程线时，所述保险丝可操作以在所述互连和感测线之间的界面处形成表面空隙，并且其中，所述保险丝是 当从所述第二编程线通过所述互连件施加第二编程线到所述第一编程线时，还可操作以治愈所述互连和所述感测线之间的表面空隙。

公开(公告)号：US20100118636A1

公开(公告)日：2010-05-13

申请号：US12688254

申请日：2010-01-15

申请人： Kaushik Chanda ,  Lynne M. Gignac ,  Wai-Kin Li ,  Ping-Chuan Wang

发明人： Kaushik Chanda ,  Lynne M. Gignac ,  Wai-Kin Li ,  Ping-Chuan Wang

IPC分类号： G11C17/16 ,  H01L23/525 ,  H01L21/44

CPC分类号： G11C17/16 ,  H01L21/7682 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

摘要： An electrically reprogrammable fuse comprising an interconnect disposed in a dielectric material, a sensing wire disposed at a first end of the interconnect, a first programming wire disposed at a second end of the interconnect, and a second programming wire disposed at a second end of the interconnect, wherein the fuse is operative to form a surface void at the interface between the interconnect and the sensing wire when a first directional electron current is applied from the first programming wire through the interconnect to the second programming wire, and wherein, the fuse is further operative to heal the surface void between the interconnect and the sensing wire when a second directional electron current is applied from the second programming wire through the interconnect to the first programming wire.

摘要翻译： 一种电可重新编程的保险丝，其包括设置在电介质材料中的互连，布置在所述互连的第一端的感测线，布置在所述互连的第二端的第一编程线，以及设置在所述互连的第二端的第二编程线 其中当从所述第一编程线通过所述互连件施加第一定向电子线到所述第二编程线时，所述保险丝可操作以在所述互连和感测线之间的界面处形成表面空隙，并且其中，所述保险丝是 当从所述第二编程线通过所述互连件施加第二编程线到所述第一编程线时，还可操作以治愈所述互连和所述感测线之间的表面空隙。