公开(公告)号：US07745855B2

公开(公告)日：2010-06-29

申请号：US11867268

申请日：2007-10-04

申请人： William K. Henson ,  Deok-Kee Kim ,  Chandrasekharan Kothandaraman ,  Byeongju Park

发明人： William K. Henson ,  Deok-Kee Kim ,  Chandrasekharan Kothandaraman ,  Byeongju Park

IPC分类号： H01L27/10

CPC分类号： H01L23/5256 ,  H01L28/20 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated eFUSE device is formed by forming a silicon “floating beam” on air, whereupon the fusible portion of the eFUSE device resides. This beam extends between two larger, supporting terminal structures. “Undercutting” techniques are employed whereby a structure is formed atop a buried layer, and that buried layer is removed by selective etching. Whereby a “floating” silicide eFUSE conductor is formed on a silicon beam structure. In its initial state, the eFUSE silicide is highly conductive, exhibiting low electrical resistance (the “unblown state of the eFUSE). When a sufficiently large current is passed through the eFUSE conductor, localized heating occurs. This heating causes electromigration of the silicide into the silicon beam (and into surrounding silicon, thereby diffusing the silicide and greatly increasing its electrical resistance. When the current source is removed, the silicide remains permanently in this diffused state, the “blown” state of the eFUSE.

摘要翻译： 通过在空气中形成硅“浮动光束”形成集成eFUSE装置，于是eFUSE装置的可熔部分驻留。 该梁在两个较大的支撑端子结构之间延伸。 采用“底切”技术，由此在掩埋层顶部形成结构，并且通过选择性蚀刻去除掩埋层。 由此在硅梁结构上形成“浮动”硅化物eFUSE导体。 在其初始状态下，eFUSE硅化物具有高导电性，表现出低电阻（eFUSE的未吹出状态）。 当足够大的电流通过eFUSE导体时，发生局部加热。 这种加热导致硅化物的电迁移到硅束（并进入周围的硅，从而扩散硅化物，并大大增加其电阻。当电流源被去除时，硅化物永久地保持在这种扩散状态，“吹”状态 eFUSE。

公开(公告)号：US20090040006A1

公开(公告)日：2009-02-12

申请号：US11835846

申请日：2007-08-08

申请人： Dureseti Chidambarrao ,  William K. Henson ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman

发明人： Dureseti Chidambarrao ,  William K. Henson ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman

IPC分类号： H01H85/143 ,  B23P19/00

CPC分类号： G11C17/16 ,  Y10T29/49117

摘要： A layer of semiconductor material is patterned to form a cathode semiconductor portion, a fuselink semiconductor portion, and an anode semiconductor portion. A first metal layer is deposited on the patterned semiconductor material layer. A dielectric material layer is deposited and lithographically patterned to cover a middle portion of the fuselink, followed by a deposition of a second metal layer. A thin metal semiconductor alloy is formed in the middle of the fuselink and thick metal semiconductor alloy alloys are formed abutting the thin metal semiconductor alloy alloy. The resulting inventive electrical fuse has interfaces at which a thinner metal semiconductor alloy abuts a thicker metal semiconductor alloy in the fuselink. The divergence of electrical current is enhanced at the interfaces due to a sudden change of a cross-sectional area available for current conduction.

摘要翻译： 图案化半导体材料层以形成阴极半导体部分，熔丝半导体部分和阳极半导体部分。 在图案化的半导体材料层上沉积第一金属层。 介电材料层被沉积并且被光刻图案化以覆盖该熔丝的中间部分，随后沉积第二金属层。 在熔体中间形成有薄金属半导体合金，并且与金属半导体合金合金形成邻接的厚金属半导体合金合金。 所产生的本发明的电熔丝具有界面，在该界面处，较薄的金属半导体合金与所述熔丝中的较厚的金属半导体合金相邻。 由于可用于电流传导的横截面积的突然变化，在接口处的电流的发散度增强。

公开(公告)号：US08004060B2

公开(公告)日：2011-08-23

申请号：US11946938

申请日：2007-11-29

申请人： Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Norman W. Robson ,  John M. Safran ,  Kenneth J. Stein

发明人： Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Norman W. Robson ,  John M. Safran ,  Kenneth J. Stein

IPC分类号： H01L29/00

CPC分类号： H01L23/5252 ,  H01L2924/0002 ,  H01L2924/00

摘要： A metal layer and a semiconductor layer are sequentially deposited on a substrate. The semiconductor layer and the metal layer are lithographically patterned to form a stack of a semiconductor portion and a metal gate portion, which is preferably performed concurrently with formation of at least one metal gate stack. In one embodiment, the size of the semiconductor portion is reduced and a metal semiconductor alloy portion is formed on the semiconductor portion by metallization. In a first electrical antifuse formed thereby, the metal semiconductor alloy portion may be electromigrated to form a short between the metal semiconductor alloy portion and the metal gate portion. In another embodiment, two disjoined metal semiconductor alloy portions are formed on the semiconductor portion. In a second electrical antifuse formed thereby, the metal semiconductor alloy portion may be electromigrated to form a short between the two previously disjoined metal semiconductor alloy portions.

摘要翻译： 金属层和半导体层顺序地沉积在基板上。 半导体层和金属层被光刻图案化以形成半导体部分和金属栅极部分的堆叠，其优选地与至少一个金属栅极叠层的形成同时进行。 在一个实施例中，半导体部分的尺寸减小，并且金属半导体合金部分通过金属化形成在半导体部分上。 在由此形成的第一电反熔丝中，金属半导体合金部分可以电铸以在金属半导体合金部分和金属栅极部分之间形成短路。 在另一个实施例中，在半导体部分上形成两个非接合的金属半导体合金部分。 在由此形成的第二电反熔丝中，金属半导体合金部分可以被电铸以在两个先前接合的金属半导体合金部分之间形成短路。

公开(公告)号：US20090283840A1

公开(公告)日：2009-11-19

申请号：US12119526

申请日：2008-05-13

申请人： Douglas D. Coolbaugh ,  Ebenezer E. Eshun ,  Ephrem G. Gebreselasie ,  Zhong-Xiang He ,  Herbert Lei Ho ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Robert Mark Rassel ,  John Matthew Safran ,  Kenneth Jay Stein ,  Norman Whitelaw Robson ,  Ping-Chuan Wang ,  Hongwen Yan

发明人： Douglas D. Coolbaugh ,  Ebenezer E. Eshun ,  Ephrem G. Gebreselasie ,  Zhong-Xiang He ,  Herbert Lei Ho ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Robert Mark Rassel ,  John Matthew Safran ,  Kenneth Jay Stein ,  Norman Whitelaw Robson ,  Ping-Chuan Wang ,  Hongwen Yan

IPC分类号： H01L27/06 ,  H01L21/8234

CPC分类号： H01L27/0629 ,  H01L23/5252 ,  H01L2924/0002 ,  H01L2924/00

摘要： A semiconductor structure and a method for fabricating the semiconductor structure provide a field effect device located and formed upon an active region of a semiconductor substrate and at least one of a fuse structure, an anti-fuse structure and a resistor structure located and formed at least in part simultaneously upon an isolation region laterally separated from the active region within the semiconductor substrate. The field effect device includes a gate dielectric comprising a high dielectric constant dielectric material and a gate electrode comprising a metal material. The at least one of the fuse structure, anti-fuse structure and resistor structure includes a pad dielectric comprising the same material as the gate dielectric, and optionally, also a fuse, anti-fuse or resistor that may comprise the same metal material as the gate electrode.

摘要翻译： 半导体结构和半导体结构的制造方法提供一种场效应器件，其位于和形成在半导体衬底的有源区上，并且至少一个熔丝结构，抗熔丝结构和电阻结构中的至少一个至少位于并形成 部分地同时地在与半导体衬底内的有源区域横向分离的隔离区域上。 场效应器件包括包括高介电常数介电材料的栅极电介质和包括金属材料的栅电极。 熔丝结构，反熔丝结构和电阻器结构中的至少一个包括包括与栅极电介质相同的材料的焊盘电介质，以及可选地还包括熔断器，反熔丝或电阻器，其可以包括与所述栅极电介质相同的金属材料 栅电极。

公开(公告)号：US20090141533A1

公开(公告)日：2009-06-04

申请号：US11946938

申请日：2007-11-29

申请人： Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Norman W. Robson ,  John M. Safran ,  Kenneth J. Stein

发明人： Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Norman W. Robson ,  John M. Safran ,  Kenneth J. Stein

IPC分类号： G11C17/08 ,  H01L27/20 ,  H01L21/768

CPC分类号： H01L23/5252 ,  H01L2924/0002 ,  H01L2924/00

摘要： A metal layer and a semiconductor layer are sequentially deposited on a substrate. The semiconductor layer and the metal layer are lithographically patterned to form a stack of a semiconductor portion and a metal gate portion, which is preferably performed concurrently with formation of at least one metal gate stack. In one embodiment, the size of the semiconductor portion is reduced and a metal semiconductor alloy portion is formed on the semiconductor portion by metallization. In a first electrical antifuse formed thereby, the metal semiconductor alloy portion may be electromigrated to form a short between the metal semiconductor alloy portion and the metal gate portion. In another embodiment, two disjoined metal semiconductor alloy portions are formed on the semiconductor portion. In a second electrical antifuse formed thereby, the metal semiconductor alloy portion may be electromigrated to form a short between the two previously disjoined metal semiconductor alloy portions.

摘要翻译： 金属层和半导体层顺序地沉积在基板上。 半导体层和金属层被光刻图案化以形成半导体部分和金属栅极部分的堆叠，其优选地与至少一个金属栅极叠层的形成同时进行。 在一个实施例中，半导体部分的尺寸减小，并且金属半导体合金部分通过金属化形成在半导体部分上。 在由此形成的第一电反熔丝中，金属半导体合金部分可以电铸以在金属半导体合金部分和金属栅极部分之间形成短路。 在另一个实施例中，在半导体部分上形成两个非接合的金属半导体合金部分。 在由此形成的第二电反熔丝中，金属半导体合金部分可以被电铸以在两个先前接合的金属半导体合金部分之间形成短路。

公开(公告)号：US20090108396A1

公开(公告)日：2009-04-30

申请号：US11925164

申请日：2007-10-26

申请人： Dureseti Chidambarrao ,  William K. Henson ,  Deok-Kee Kim ,  Chandrasekharan Kothandaraman

发明人： Dureseti Chidambarrao ,  William K. Henson ,  Deok-Kee Kim ,  Chandrasekharan Kothandaraman

IPC分类号： H01L29/86 ,  H01L21/71

CPC分类号： H01L23/5256 ,  H01L27/115 ,  H01L2924/0002 ,  H01L2924/00

摘要： A contiguous block of a stack of two heterogeneous semiconductor layers is formed over an insulator region such as shallow trench isolation. A portion of the contiguous block is exposed to an etch, while another portion is masked during the etch. The etch removes an upper semiconductor layer selective to a lower semiconductor layer in the exposed portion. The etch mask is removed and the entirety of the lower semiconductor layer within the exposed region is metallized. A first metal semiconductor alloy vertically abutting the insulator region is formed, while exposed surfaces of the stack of two heterogeneous semiconductor layers, which comprises the materials of the upper semiconductor layer, are concurrently metallized to form a second metal semiconductor alloy. An inflection point for current and, consequently, a region of flux divergence are formed at the boundary of the two metal semiconductor alloys.

摘要翻译： 在绝缘体区域上形成两个不均匀半导体层的堆叠的连续块，例如浅沟槽隔离。 连续块的一部分暴露于蚀刻，而另一部分在蚀刻期间被掩蔽。 蚀刻去除在暴露部分中对下半导体层有选择性的上半导体层。 去除蚀刻掩模，并且暴露区域内的下半导体层的整体被金属化。 形成垂直邻接绝缘体区域的第一金属半导体合金，同时将包含上半导体层的材料的两个非均匀半导体层的堆叠的暴露表面同时金属化以形成第二金属半导体合金。 在两个金属半导体合金的边界处形成电流的拐点，从而形成磁通发散区域。

公开(公告)号：US20090101989A1

公开(公告)日：2009-04-23

申请号：US11874385

申请日：2007-10-18

申请人： Xiangdong Chen ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman

发明人： Xiangdong Chen ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman

IPC分类号： H01L27/06 ,  H01L21/3205

CPC分类号： H01L27/0617 ,  H01L23/5256 ,  H01L29/4238 ,  H01L2924/0002 ,  H01L2924/00

摘要： A dielectric material layer is formed on a metal gate layer for a metal gate electrode, and then lithographically patterned to form a dielectric material portion, followed by formation of a polycrystalline semiconductor layer thereupon. A semiconductor device employing a metal gate electrode is formed in a region of the semiconductor substrate containing a vertically abutting stack of the metal gate layer and the polycrystalline semiconductor layer. A material stack in the shape of an electrical fuse is formed in another region of the semiconductor substrate containing a vertical stack of the metal gate layer, the dielectric material portion, and the polycrystalline semiconductor layer. After metallization of the polycrystalline semiconductor layer, an electrical fuse containing a polycrystalline semiconductor portion and a metal semiconductor alloy portion is formed over the dielectric material portion that separates the electrical fuse from the metal gate layer.

摘要翻译： 在用于金属栅电极的金属栅极层上形成电介质材料层，然后通过光刻图案形成电介质材料部分，随后在其上形成多晶半导体层。 在包含金属栅极层和多晶半导体层的垂直邻接堆叠的半导体基板的区域中形成采用金属栅电极的半导体器件。 形成有电熔丝形状的材料堆叠形成在半导体衬底的另一区域中，该区域包含金属栅极层，电介质材料部分和多晶半导体层的垂直叠层。 在多晶半导体层的金属化之后，在将电熔丝与金属栅极层分离开的电介质材料部分上形成包含多晶半导体部分和金属半导体合金部分的电熔丝。

公开(公告)号：US08159040B2

公开(公告)日：2012-04-17

申请号：US12119526

申请日：2008-05-13

申请人： Douglas D. Coolbaugh ,  Ebenezer E. Eshun ,  Ephrem G. Gebreselasie ,  Zhong-Xiang He ,  Herbert Lei Ho ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Robert Mark Rassel ,  John Matthew Safran ,  Kenneth Jay Stein ,  Norman Whitelaw Robson ,  Ping-Chuan Wang ,  Hongwen Yan

发明人： Douglas D. Coolbaugh ,  Ebenezer E. Eshun ,  Ephrem G. Gebreselasie ,  Zhong-Xiang He ,  Herbert Lei Ho ,  Deok-kee Kim ,  Chandrasekharan Kothandaraman ,  Dan Moy ,  Robert Mark Rassel ,  John Matthew Safran ,  Kenneth Jay Stein ,  Norman Whitelaw Robson ,  Ping-Chuan Wang ,  Hongwen Yan

IPC分类号： H01L29/00

CPC分类号： H01L27/0629 ,  H01L23/5252 ,  H01L2924/0002 ,  H01L2924/00

摘要： A semiconductor structure and a method for fabricating the semiconductor structure provide a field effect device located and formed upon an active region of a semiconductor substrate and at least one of a fuse structure, an anti-fuse structure and a resistor structure located and formed at least in part simultaneously upon an isolation region laterally separated from the active region within the semiconductor substrate. The field effect device includes a gate dielectric comprising a high dielectric constant dielectric material and a gate electrode comprising a metal material. The at least one of the fuse structure, anti-fuse structure and resistor structure includes a pad dielectric comprising the same material as the gate dielectric, and optionally, also a fuse, anti-fuse or resistor that may comprise the same metal material as the gate electrode.

摘要翻译： 半导体结构和半导体结构的制造方法提供一种场效应器件，其位于和形成在半导体衬底的有源区上，并且至少一个熔丝结构，抗熔丝结构和电阻结构中的至少一个至少位于并形成 部分地同时地在与半导体衬底内的有源区域横向分离的隔离区域上。 场效应器件包括包括高介电常数介电材料的栅极电介质和包括金属材料的栅电极。 熔丝结构，反熔丝结构和电阻器结构中的至少一个包括包括与栅极电介质相同的材料的焊盘电介质，以及可选地还包括熔断器，反熔丝或电阻器，其可以包括与所述栅极电介质相同的金属材料 栅电极。

公开(公告)号：US20110272779A1

公开(公告)日：2011-11-10

申请号：US13189016

申请日：2011-07-22

申请人： Deok-Kee Kim ,  Dureseti Chidambarrao ,  William K. Henson ,  Chandrasekharan Kothandaraman

发明人： Deok-Kee Kim ,  Dureseti Chidambarrao ,  William K. Henson ,  Chandrasekharan Kothandaraman

IPC分类号： H01L23/525

CPC分类号： H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

摘要： An eFuse, includes: a substrate and an insulating layer disposed on the substrate; a first layer including a single crystal or polycrystalline silicon disposed on the insulating layer; a second layer including a single crystal or polycrystalline silicon germanium disposed on the first layer, and a third layer including a silicide disposed on the second layer. The Ge has a final concentration in a range of approximately five percent to approximately twenty-five percent.

摘要翻译： eFuse包括：衬底和设置在衬底上的绝缘层; 包括设置在所述绝缘层上的单晶或多晶硅的第一层; 包括设置在第一层上的单晶或多晶硅锗的第二层，以及包括设置在第二层上的硅化物的第三层。 Ge的终浓度范围约为百分之五至百分之二十五。

公开(公告)号：US07943493B2

公开(公告)日：2011-05-17

申请号：US12873882

申请日：2010-09-01

申请人： Dureseti Chidambarrao ,  William K. Henson ,  Deok-Kee Kim ,  Chandrasekharan Kothandaraman

发明人： Dureseti Chidambarrao ,  William K. Henson ,  Deok-Kee Kim ,  Chandrasekharan Kothandaraman

IPC分类号： H01L21/20

CPC分类号： H01L23/5256 ,  H01L27/115 ,  H01L2924/0002 ,  H01L2924/00

摘要： A contiguous block of a stack of two heterogeneous semiconductor layers is formed over an insulator region such as shallow trench isolation. A portion of the contiguous block is exposed to an etch, while another portion is masked during the etch. The etch removes an upper semiconductor layer selective to a lower semiconductor layer in the exposed portion. The etch mask is removed and the entirety of the lower semiconductor layer within the exposed region is metallized. A first metal semiconductor alloy vertically abutting the insulator region is formed, while exposed surfaces of the stack of two heterogeneous semiconductor layers, which comprises the materials of the upper semiconductor layer, are concurrently metallized to form a second metal semiconductor alloy. An inflection point for current and, consequently, a region of flux divergence are formed at the boundary of the two metal semiconductor alloys.

摘要翻译： 在绝缘体区域上形成两个不均匀半导体层的堆叠的连续块，例如浅沟槽隔离。 连续块的一部分暴露于蚀刻，而另一部分在蚀刻期间被掩蔽。 蚀刻去除在暴露部分中对下半导体层有选择性的上半导体层。 去除蚀刻掩模，并且暴露区域内的下半导体层的整体被金属化。 形成垂直邻接绝缘体区域的第一金属半导体合金，同时将包含上半导体层的材料的两个非均匀半导体层的堆叠的暴露表面同时金属化以形成第二金属半导体合金。 在两个金属半导体合金的边界处形成电流的拐点，从而形成磁通发散区域。