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1.发明申请STRUCTURE AND METHOD OF REDUCING ELECTROMIGRATION CRACKING AND EXTRUSION EFFECTS IN SEMICONDUCTOR DEVICES 失效减少半导体器件中的电化学破碎和挤出效应的结构和方法公开(公告)号：US20080303164A1
公开(公告)日：2008-12-11
申请号：US11758206
申请日：2007-06-05
CPC分类号： H01L23/528 , H01L21/7682 , H01L21/76831 , H01L23/5329 , H01L23/53295 , H01L2924/0002 , H01L2924/00
摘要： A structure for reducing electromigration cracking and extrusion effects in semiconductor devices includes a first metal line formed in a first dielectric layer; a cap layer formed over the first metal line and first dielectric layer; a second dielectric layer formed over the cap layer; and a void formed in the second dielectric layer, stopping on the cap layer, wherein the void is located in a manner so as to isolate structural damage due to electromigration effects of the first metal line, the effects including one or more of extrusions of metal material from the first metal line and cracks from delamination of the cap layer with respect to the first dielectric layer.
摘要翻译： 用于减少半导体器件中的电迁移破裂和挤出效应的结构包括形成在第一介电层中的第一金属线; 形成在第一金属线和第一介电层上的盖层; 形成在所述盖层上的第二电介质层; 以及形成在第二介电层中的空隙，停止在盖层上，其中，空隙以如下方式定位，以便隔离由于第一金属线的电迁移效应引起的结构损坏，包括一种或多种金属挤压的效果 来自第一金属线的材料和帽层相对于第一介电层分层的裂纹。
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2.发明申请STRUCTURE AND METHOD OF REDUCING ELECTROMIGRATION CRACKING AND EXTRUSION EFFECTS IN SEMICONDUCTOR DEVICES 失效减少半导体器件中的电化学破碎和挤出效应的结构和方法公开(公告)号：US20120264295A1
公开(公告)日：2012-10-18
申请号：US13530999
申请日：2012-06-22
IPC分类号： H01L21/44
CPC分类号： H01L23/528 , H01L21/7682 , H01L21/76831 , H01L23/5329 , H01L23/53295 , H01L2924/0002 , H01L2924/00
摘要： A structure for reducing electromigration cracking and extrusion effects in semiconductor devices includes a first metal line formed in a first dielectric layer; a cap layer formed over the first metal line and first dielectric layer; a second dielectric layer formed over the cap layer; and a void formed in the second dielectric layer, stopping on the cap layer, wherein the void is located in a manner so as to isolate structural damage due to electromigration effects of the first metal line, the effects including one or more of extrusions of metal material from the first metal line and cracks from delamination of the cap layer with respect to the first dielectric layer.
摘要翻译： 用于减少半导体器件中的电迁移破裂和挤出效应的结构包括形成在第一介电层中的第一金属线; 形成在第一金属线和第一介电层上的盖层; 形成在所述盖层上的第二电介质层; 以及形成在所述第二介电层中的空隙，停止在所述盖层上，其中所述空隙以这样的方式定位，以便隔离由于所述第一金属线的电迁移效应引起的结构损坏，所述效果包括一种或多种金属挤压 来自第一金属线的材料和帽层相对于第一介电层分层的裂纹。
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3.发明授权Structure and method of reducing electromigration cracking and extrusion effects in semiconductor devices 失效减少半导体器件中电迁移破裂和挤出效应的结构和方法公开(公告)号：US08716101B2
公开(公告)日：2014-05-06
申请号：US13530999
申请日：2012-06-22
IPC分类号： H01L21/76
CPC分类号： H01L23/528 , H01L21/7682 , H01L21/76831 , H01L23/5329 , H01L23/53295 , H01L2924/0002 , H01L2924/00
摘要： A structure for reducing electromigration cracking and extrusion effects in semiconductor devices includes a first metal line formed in a first dielectric layer; a cap layer formed over the first metal line and first dielectric layer; a second dielectric layer formed over the cap layer; and a void formed in the second dielectric layer, stopping on the cap layer, wherein the void is located in a manner so as to isolate structural damage due to electromigration effects of the first metal line, the effects including one or more of extrusions of metal material from the first metal line and cracks from delamination of the cap layer with respect to the first dielectric layer.
摘要翻译： 用于减少半导体器件中的电迁移破裂和挤出效应的结构包括形成在第一介电层中的第一金属线; 形成在第一金属线和第一介电层上的盖层; 形成在所述盖层上的第二电介质层; 以及形成在所述第二介电层中的空隙，停止在所述盖层上，其中所述空隙以这样的方式定位，以便隔离由于所述第一金属线的电迁移效应引起的结构损坏，所述效果包括一种或多种金属挤压 来自第一金属线的材料和帽层相对于第一介电层分层的裂纹。
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4.发明授权Structure and method of reducing electromigration cracking and extrusion effects in semiconductor devices 失效减少半导体器件中电迁移破裂和挤出效应的结构和方法公开(公告)号：US08237283B2
公开(公告)日：2012-08-07
申请号：US11758206
申请日：2007-06-05
IPC分类号： H01L23/52
CPC分类号： H01L23/528 , H01L21/7682 , H01L21/76831 , H01L23/5329 , H01L23/53295 , H01L2924/0002 , H01L2924/00
摘要： A structure for reducing electromigration cracking and extrusion effects in semiconductor devices includes a first metal line formed in a first dielectric layer; a cap layer formed over the first metal line and first dielectric layer; a second dielectric layer formed over the cap layer; and a void formed in the second dielectric layer, stopping on the cap layer, wherein the void is located in a manner so as to isolate structural damage due to electromigration effects of the first metal line, the effects including one or more of extrusions of metal material from the first metal line and cracks from delamination of the cap layer with respect to the first dielectric layer.
摘要翻译： 用于减少半导体器件中的电迁移破裂和挤出效应的结构包括形成在第一介电层中的第一金属线; 形成在第一金属线和第一介电层上的盖层; 形成在所述盖层上的第二电介质层; 以及形成在第二介电层中的空隙，停止在盖层上，其中，空隙以如下方式定位，以便隔离由于第一金属线的电迁移效应引起的结构损坏，包括一种或多种金属挤压的效果 来自第一金属线的材料和帽层相对于第一介电层分层的裂纹。
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公开(公告)号：US08420537B2
公开(公告)日：2013-04-16
申请号：US12127878
申请日：2008-05-28
IPC分类号： H01L21/302 , B44C1/22
CPC分类号： H01L21/76877 , H01L21/76883
摘要： Recrystallization and grain growth of metal, such as Cu, is achieved at higher anneal temperatures of 150° C. to 400° C., for example, for short anneal times of five to sixty minutes by forming a metal stress locking layer on the Cu before anneal and chemical-mechanical polishing. The stress locking layer extends the elastic region of the Cu by suppressing atom diffusion to the free surface, resulting in near zero tensile stress at room temperature after anneal. Stress voiding, which creates reliability problems, is thereby avoided. Improved grain size and texture are also achieved. The stress locking layer is removed after anneal by chemical-mechanical polishing leaving the Cu interconnect with low stress and improved grain size and texture.
摘要翻译： 在150℃至400℃的较高退火温度下实现诸如Cu的金属的重结晶和晶粒生长，例如，通过在Cu上形成金属应力锁定层，例如在短至五至六十分钟的短退火时间 在退火和化学机械抛光之前。 应力锁定层通过将原子扩散抑制到自由表面而延伸Cu的弹性区域，导致退火后在室温下拉伸应力接近零。 从而避免了造成可靠性问题的应力消除。 也实现了改善的晶粒尺寸和纹理。 通过化学机械抛光退火后去除应力锁定层，使Cu互连具有低应力和改善的晶粒尺寸和纹理。
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6.发明授权Semiconductor wiring structures including dielectric cap within metal cap layer 有权包括金属盖层内的电介质盖的半导体布线结构公开(公告)号：US07732924B2
公开(公告)日：2010-06-08
申请号：US11761495
申请日：2007-06-12
IPC分类号： H01L23/52
CPC分类号： H01L23/53238 , H01L21/76834 , H01L21/76865 , H01L23/53223 , H01L23/53252 , H01L23/5329 , H01L2924/0002 , H01L2924/00
摘要： Semiconductor wiring structures including a dielectric layer having a metal wiring line therein, a via extending downwardly from the metal wiring line, a metal cap layer over the metal wiring line, and a local dielectric cap positioned within a portion of the metal cap layer and in contact with the metal wiring line and a related method are disclosed. The local dielectric cap represents an intentionally created weak point in the metal wiring line of a dual-damascene interconnect, which induces electromigration (EM) voiding in the line, rather than at the bottom of a via extending downwardly from the metal wiring line. Since the critical void size in line fails, especially with metal cap layer (liner) redundancy, is much larger than that in via fails, the EM lifetime can be significantly increased.
摘要翻译： 包括其中具有金属布线的电介质层，从金属布线向下延伸的孔，在金属布线上方的金属盖层和位于金属盖层的一部分内的局部电介质盖的半导体布线结构 公开了与金属布线的接触和相关方法。 局部电介质盖表示在双镶嵌互连的金属布线中有意创造的弱点，其在管线中引起电迁移（EM）空隙，而不是在从金属布线向下延伸的通孔的底部。 由于线路中的临界空隙尺寸失效，特别是金属盖层（衬垫）冗余度，远远大于通孔失效，所以EM寿命可以显着提高。
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公开(公告)号：US20090297759A1
公开(公告)日：2009-12-03
申请号：US12127878
申请日：2008-05-28
CPC分类号： H01L21/76877 , H01L21/76883
摘要： Recrystallization and grain growth of metal, such as Cu, is achieved at higher anneal temperatures of 150° C. to 400° C., for example, for short anneal times of five to sixty minutes by forming a metal stress locking layer on the Cu before anneal and chemical-mechanical polishing. The stress locking layer extends the elastic region of the Cu by suppressing atom diffusion to the free surface, resulting in near zero tensile stress at room temperature after anneal. Stress voiding, which creates reliability problems, is thereby avoided. Improved grain size and texture are also achieved. The stress locking layer is removed after anneal by chemical-mechanical polishing leaving the Cu interconnect with low stress and improved grain size and texture.
摘要翻译： 在150℃至400℃的较高退火温度下实现诸如Cu的金属的重结晶和晶粒生长，例如，通过在Cu上形成金属应力锁定层，例如在短至五至六十分钟的短退火时间 在退火和化学机械抛光之前。 应力锁定层通过将原子扩散抑制到自由表面而延伸Cu的弹性区域，导致退火后在室温下拉伸应力接近零。 从而避免了造成可靠性问题的应力消除。 也实现了改善的晶粒尺寸和纹理。 通过化学机械抛光退火后去除应力锁定层，使Cu互连具有低应力和改善的晶粒尺寸和纹理。
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8.发明申请SEMICONDUCTOR WIRING STRUCTURES INCLUDING DIELECTRIC CAP WITHIN METAL CAP LAYER 有权半导体接线结构包括金属盖层中的电介质盖公开(公告)号：US20080308942A1
公开(公告)日：2008-12-18
申请号：US11761495
申请日：2007-06-12
IPC分类号： H01L23/52 , H01L21/4763
CPC分类号： H01L23/53238 , H01L21/76834 , H01L21/76865 , H01L23/53223 , H01L23/53252 , H01L23/5329 , H01L2924/0002 , H01L2924/00
摘要： Semiconductor wiring structures including a dielectric layer having a metal wiring line therein, a via extending downwardly from the metal wiring line, a metal cap layer over the metal wiring line, and a local dielectric cap positioned within a portion of the metal cap layer and in contact with the metal wiring line and a related method are disclosed. The local dielectric cap represents an intentionally created weak point in the metal wiring line of a dual-damascene interconnect, which induces electromigration (EM) voiding in the line, rather than at the bottom of a via extending downwardly from the metal wiring line. Since the critical void size in line fails, especially with metal cap layer (liner) redundancy, is much larger than that in via fails, the EM lifetime can be significantly increased.
摘要翻译： 包括其中具有金属布线的电介质层，从金属布线向下延伸的孔，在金属布线上方的金属盖层和位于金属盖层的一部分内的局部电介质盖的半导体布线结构 公开了与金属布线的接触和相关方法。 局部电介质盖表示在双镶嵌互连的金属布线中有意创造的弱点，其在管线中引起电迁移（EM）空隙，而不是在从金属布线向下延伸的通孔的底部。 由于线路中的临界空隙尺寸失效，特别是金属盖层（衬垫）冗余度，远远大于通孔失效，所以EM寿命可以显着提高。
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公开(公告)号：US08446014B2
公开(公告)日：2013-05-21
申请号：US13531008
申请日：2012-06-22
申请人： Hanyi Ding , Ronald G. Filippi , Jong-Ru Guo , Ping-Chuan Wang
发明人： Hanyi Ding , Ronald G. Filippi , Jong-Ru Guo , Ping-Chuan Wang
IPC分类号： H01L23/48
CPC分类号： H01L23/528 , H01L23/5286 , H01L2924/0002 , H01L2924/00
摘要： An integrated circuit (IC) interconnect structure that includes a first via positioned in a dielectric and coupled to a high current device at one end, and a buffer metal segment positioned in a dielectric and coupled to the first via at an opposite end thereof. The buffer metal segment includes a plurality of electrically insulating inter-dielectric (ILD) pads forming an ILD cheesing pattern thereon, to direct current. The IC interconnect structure further includes a second via positioned in a dielectric formed over the buffer metal segment and coupled to the buffer metal segment at one end and a metal power line formed in a dielectric and coupled to the second via at an opposite end thereof. The use of the ILD pads on the buffer metal segment enables a more even distribution of current along the metal power line.
摘要翻译： 一种集成电路（IC）互连结构，其包括位于电介质中并且在一端耦合到高电流器件的第一通孔和位于电介质中的缓冲金属段，并在其相对端耦合到第一通孔。 缓冲金属段包括在其上形成ILD干酪糖化图案的多个电绝缘介电层（ILD）焊盘以引导电流。 IC互连结构还包括位于介质上的第二通孔，该电介质形成在缓冲金属段上并且在一端耦合到缓冲金属段，并且金属电源线形成在电介质中，并在其相对端耦合到第二通孔。 缓冲金属片段上的ILD焊盘的使用使得能够沿着金属电源线更均匀地分布电流。
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10.发明授权Process of enclosing via for improved reliability in dual damascene interconnects 有权封装通孔的过程可提高双镶嵌互连中的可靠性公开(公告)号：US06383920B1
公开(公告)日：2002-05-07
申请号：US09757894
申请日：2001-01-10
IPC分类号： H01L214763
CPC分类号： H01L21/76847 , H01L21/76807 , H01L21/76811 , H01L21/76813 , H01L21/76843 , H01L23/5226 , H01L2924/0002 , H01L2924/00
摘要： The present invention relates generally to a method of enclosing a via in a dual damascene process. In one embodiment of the disclosed method, the via is etched first and a first barrier metal or liner is deposited in the via, the trench is then etched and a second barrier metal or liner is deposited in the trench, and finally the via and trench are filled or metallized in a dual damascene process, thereby forming a via or interconnect and a line. Alternatively, the trench may be etched first and a first barrier metal or liner deposited in the trench, then the via is etched and a second barrier metal or liner is deposited in the via, and finally the trench and via are filled or metallized in a dual damascene process. The barrier metal or liner encloses the via, thereby reducing void formation due to electromigration.
摘要翻译： 本发明一般涉及在双镶嵌工艺中封闭通孔的方法。 在所公开的方法的一个实施例中，首先蚀刻通孔，并且在通孔中沉积第一阻挡金属或衬垫，然后蚀刻沟槽，并且在沟槽中沉积第二阻挡金属或衬垫，最后沉积通孔和沟槽 在双镶嵌工艺中填充或金属化，从而形成通孔或互连线。 或者，可以首先蚀刻沟槽并且沉积在沟槽中的第一阻挡金属或衬垫，然后蚀刻通孔，并且在通孔中沉积第二阻挡金属或衬垫，最后将沟槽和通孔填充或金属化在 双镶嵌工艺。 阻挡金属或衬里封闭通孔，从而减少由于电迁移而导致的空隙形成。
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