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公开(公告)号：US20050112857A1
公开(公告)日：2005-05-26
申请号：US10707175
申请日：2003-11-25
IPC分类号： H01L21/285 , H01L21/3205 , H01L21/336 , H01L21/8234 , H01L27/092 , H01L29/08 , H01L29/78
CPC分类号： H01L29/0847 , H01L21/28518 , H01L29/665 , H01L29/66636 , H01L29/7833
摘要： Very low resistance, scaled in MOSFET devices are formed by employing thin silicidation-stop extension that act both as a silicidation “stop” barriers and as thin interface layers between source/drain silicide regions and channel region of the MOSFET. By acting as silicidation stops, the silicidation-stop extensions confine silicidation, and are not breached by source/drain silicide. This permits extremely thin, highly-doped silicidation-stop extensions to be formed between the silicide and the channel, providing an essentially ideal, low series resistance interface between the silicide an the channel. On an appropriately prepared substrate, a selective etching process is performed to expose the sides of the channel region (transistor body). A very thin layer of a silicidation-stop material, e.g., SiGe, is disposed in the etched away area, coating the exposed sides of the channel region. The silicidation-stop material is doped (highly) appropriately for the type of MOSFET being formed (n-channel or p-channel). The etched away areas are then filled with silicon, e.g., by an Si epi process. Silicidation is then performed (to form, e.g., CoSi2) on the newly filled areas. The silicidation stop material constrains silicidation to the silicon fill material, but prevents silicide expansion past the silicidation stop material. Because the germanium (Ge) in SiGe is insoluble in CoSi2, the SiGe acts as a barrier to silicidation, permitting silicidation to go to completion in the Si fill but stopping silicidation at the SiGe boundary when silicidation is performed at a temperature above a silicidation threshold temperature for Si, but below a silicidation threshold temperature for SiGe. This results in a very compact, well-defined lateral junction characterized by a thin layer of SiGe disposed between silicide lateral extensions and the sides of the channel region. Because of the thin, highly-doped SiGe layer between the channel and the silicide lateral extensions, the extension resistance is very low.
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公开(公告)号：US20050087824A1
公开(公告)日：2005-04-28
申请号：US10605769
申请日：2003-10-24
申请人： Cyril Cabral , Omer Dokumaci , Oleg Gluschenkov
发明人： Cyril Cabral , Omer Dokumaci , Oleg Gluschenkov
IPC分类号： G05F1/10 , G05F3/02 , H01L21/28 , H01L21/3205 , H01L21/336 , H01L21/4763 , H01L21/8238 , H01L21/84 , H01L27/092 , H01L27/12 , H01L29/51 , H01L29/76 , H01L29/772 , H01L29/78 , H01L29/94 , H01L31/062 , H01L31/113 , H01L31/119
CPC分类号： H01L21/28194 , H01L21/28202 , H01L29/51 , H01L29/513 , H01L29/517 , H01L29/518 , H01L29/665 , H01L29/66545 , H01L29/66628 , H01L29/66636 , H01L29/7836
摘要： field effect transistor (FET), integrated circuit (IC) chip including the FETs and a method of forming the FETs. The FETs have a device channel and a gate above the device channel with a doped source/drain extension at said each end of the thin channel. A portion of a low resistance material layer (e.g., a silicide layer) is disposed on source/drain extensions. The portions on the doped extensions laterally form a direct contact with the doped source/drain extension. Any low resistance material layer on the gate is separated from the low resistance material portions on the source/drain extensions.
摘要翻译： 场效应晶体管（FET），包括FET的集成电路（IC）芯片和形成FET的方法。 FET在器件沟道上方具有器件沟道和栅极，在薄沟道的每个端部具有掺杂的源极/漏极延伸。 低电阻材料层（例如硅化物层）的一部分设置在源极/漏极延伸部分上。 掺杂延伸部分上的部分横向形成与掺杂源极/漏极延伸部的直接接触。 栅极上的任何低电阻材料层与源极/漏极延伸部分上的低电阻材料部分分离。
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公开(公告)号：US20050148142A1
公开(公告)日：2005-07-07
申请号：US11074223
申请日：2005-03-07
申请人： Cyril Cabral , Omer Dokumaci , Oleg Gluschenkov
发明人： Cyril Cabral , Omer Dokumaci , Oleg Gluschenkov
IPC分类号： G05F1/10 , G05F3/02 , H01L21/28 , H01L21/3205 , H01L21/336 , H01L21/4763 , H01L21/8238 , H01L21/84 , H01L27/092 , H01L27/12 , H01L29/51 , H01L29/76 , H01L29/772 , H01L29/78 , H01L29/94 , H01L31/062 , H01L31/113 , H01L31/119
CPC分类号： H01L21/28194 , H01L21/28202 , H01L29/51 , H01L29/513 , H01L29/517 , H01L29/518 , H01L29/665 , H01L29/66545 , H01L29/66628 , H01L29/66636 , H01L29/7836
摘要： A field effect transistor (FET), integrated circuit (IC) chip including the FETs and a method of forming the FETs. The FETs have a device channel and a gate above the device channel with a doped source/drain extension at said each end of the thin channel. A portion of a low resistance material layer (e.g., a silicide layer) is disposed on source/drain extensions. The portions on the doped extensions laterally form a direct contact with the doped source/drain extension. Any low resistance material layer on the gate is separated from the low resistance material portions on the source/drain extensions.
摘要翻译： 包括FET的场效应晶体管（FET），集成电路（IC）芯片和形成FET的方法。 FET在器件沟道上方具有器件沟道和栅极，在薄沟道的每个端部具有掺杂的源极/漏极延伸。 低电阻材料层（例如硅化物层）的一部分设置在源极/漏极延伸部分上。 掺杂延伸部分上的部分横向形成与掺杂源极/漏极延伸部的直接接触。 栅极上的任何低电阻材料层与源极/漏极延伸部分上的低电阻材料部分分离。
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4.发明授权Method of forming ultra-thin silicidation-stop extensions in mosfet devices 有权在mosfet器件中形成超薄硅化 - 停止延伸的方法公开(公告)号：US06989322B2
公开(公告)日：2006-01-24
申请号：US10707175
申请日：2003-11-25
IPC分类号： H01L21/3205 , H01L21/4763
CPC分类号： H01L29/0847 , H01L21/28518 , H01L29/665 , H01L29/66636 , H01L29/7833
摘要： Very low resistance, scaled in MOSFET devices are formed by employing thin silicidation-stop extension that act both as a silicidation “stop” barriers and as thin interface layers between source/drain silicide regions and channel region of the MOSFET. By acting as silicidation stops, the silicidation-stop extensions confine silicidation, and are not breached by source/drain silicide. This permits extremely thin, highly-doped silicidation-stop extensions to be formed between the silicide and the channel, providing an essentially ideal, low series resistance interface between the silicide and the channel.
摘要翻译： 通过使用薄硅化停止扩展来形成MOSFET器件中的非常低的电阻，其既用作硅化“阻挡”势垒，又作为源/漏硅化物区域和MOSFET的沟道区之间的薄界面层。 通过作为硅化停止，硅化 - 停止扩展限制硅化，并且不被源/漏硅化物破坏。 这允许在硅化物和沟道之间形成非常薄的，高掺杂的硅化 - 停止延伸，在硅化物和沟道之间提供基本理想的低串联电阻接口。
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5.发明申请Structure and method to improve channel mobility by gate electrode stress modification 有权通过栅电极应力改变来提高沟道迁移率的结构和方法公开(公告)号：US20050093059A1
公开(公告)日：2005-05-05
申请号：US10695752
申请日：2003-10-30
IPC分类号： H01L21/20 , H01L21/28 , H01L21/302 , H01L21/336 , H01L21/44 , H01L21/461 , H01L21/4763 , H01L21/8238 , H01L27/092 , H01L29/49 , H01L29/72 , H01L29/78 , H01L29/786 , H01L31/062
CPC分类号： H01L29/7845 , H01L21/823807 , H01L21/823835 , H01L21/823842 , H01L29/4908 , H01L29/66795 , H01L29/785
摘要： In producing complementary sets of metal-oxide-semiconductor (CMOS) field effect transistors, including nFET and PFET), carrier mobility is enhanced or otherwise regulated through the reacting the material of the gate electrode with a metal to produce a stressed alloy (preferably CoSi2, NiSi, or PdSi) within a transistor gate. In the case of both the nFET and pFET, the inherent stress of the respective alloy results in an opposite stress on the channel of respective transistor. By maintaining opposite stresses in the nFET and pFET alloys or silicides, both types of transistors on a single chip or substrate can achieve an enhanced carrier mobility, thereby improving the performance of CMOS devices and integrated circuits.
摘要翻译： 在制造包括nFET和PFET的互补金属氧化物半导体（CMOS）场效应晶体管的情况下，通过使栅电极的材料与金属反应来增强或调节载流子迁移率，以产生应力合金（优选CoSi 2Si，NiSi或PdSi）。 在nFET和pFET两者的情况下，各合金的固有应力对相应晶体管的沟道产生相反的应力。 通过在nFET和pFET合金或硅化物中保持相反的应力，单个芯片或衬底上的两种类型的晶体管可以实现增强的载流子迁移率，从而提高CMOS器件和集成电路的性能。
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公开(公告)号：US06686637B1
公开(公告)日：2004-02-03
申请号：US10301436
申请日：2002-11-21
IPC分类号： H01L2978
CPC分类号： H01L29/66545 , H01L21/26586 , H01L21/28035 , H01L21/28044 , H01L29/1083 , H01L29/4925 , H01L29/665
摘要： A gate structure for a semiconductor transistor is disclosed. In an exemplary embodiment, the gate structure includes a lower polysilicon region doped at a first dopant concentration and an upper polysilicon region doped at a second concentration, with the second concentration being different than the first concentration. A conductive barrier layer is disposed between the lower and the upper polysilicon regions, wherein the conductive barrier layer prevents diffusion of impurities between the lower and the upper polysilicon regions.
摘要翻译： 公开了一种用于半导体晶体管的栅极结构。 在示例性实施例中，栅极结构包括以第一掺杂剂浓度掺杂的下多晶硅区域和以第二浓度掺杂的上多晶硅区域，其中第二浓度不同于第一浓度。 导电阻挡层设置在下部和上部多晶硅区域之间，其中导电阻挡层防止杂质在下部和上部多晶硅区域之间的扩散。
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公开(公告)号：US20070228472A1
公开(公告)日：2007-10-04
申请号：US11757874
申请日：2007-06-04
IPC分类号： H01L27/12
CPC分类号： H01L29/1608 , H01L21/8213 , H01L21/823412 , H01L21/823807 , H01L21/84 , H01L27/1203 , H01L29/0649 , H01L29/1054 , H01L29/1095 , H01L29/66651 , H01L29/7378 , H01L29/7843 , H01L29/7846 , H01L29/7849 , H01L29/8086
摘要： A semiconductor structure and method of manufacturing is provided. The method of manufacturing includes forming shallow trench isolation (STI) in a substrate and providing a first material and a second material on the substrate. The first material and the second material are mixed into the substrate by a thermal anneal process to form a first island and second island at an nFET region and a pFET region, respectively. A layer of different material is formed on the first island and the second island. The STI relaxes and facilitates the relaxation of the first island and the second island. The first material may be deposited or grown Ge material and the second material may deposited or grown Si:C or C. A strained Si layer is formed on at least one of the first island and the second island.
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公开(公告)号：US20070166897A1
公开(公告)日：2007-07-19
申请号：US11694373
申请日：2007-03-30
IPC分类号： H01L21/84
CPC分类号： H01L29/78 , H01L21/823807 , H01L21/823878 , H01L21/84 , H01L27/1203 , H01L29/1054
摘要： The present invention provides a strained-Si structure, in which the nFET regions of the structure are strained in tension and the pFET regions of the structure are strained in compression. Broadly the strained-Si structure comprises a substrate, a first layered stack atop the substrate, the first layered stack comprising a first Si-containing portion of the substrates a compressive layer atop the Si-containing portion of the substrate, and a semiconducting silicon layer atop the compressive layer; and a second layered stack atop the substrate, the second layered stack comprising a second-silicon containing layer portion of the substrate, a tensile layer atop the second Si-containing portion of the substrate, and a second semiconducting silicon-layer atop the tensile layer.
摘要翻译： 本发明提供一种应变Si结构，其中该结构的nFET区域被拉紧并且该结构的pFET区域被压缩而变形。 广义上，应变Si结构包括衬底，在衬底顶部的第一层叠堆叠，第一层叠堆叠包括衬底的第一含硅部分，衬底的含Si部分顶部的压缩层，以及半导体硅层 在压缩层顶上; 以及在所述衬底顶部的第二层叠叠层，所述第二层叠堆叠包括所述衬底的第二硅含有层部分，在所述衬底的所述第二含Si部分顶部的拉伸层，以及在所述拉伸层顶部的第二半导体硅层 。
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公开(公告)号：US20050130358A1
公开(公告)日：2005-06-16
申请号：US10733378
申请日：2003-12-12
IPC分类号： H01L21/76 , H01L21/20 , H01L21/336 , H01L21/762 , H01L21/8238 , H01L21/84 , H01L27/08 , H01L27/092 , H01L27/12 , H01L29/786 , H01L21/8234 , H01L29/739 , H01L31/0328 , H01L31/0336 , H01L31/072 , H01L31/109
CPC分类号： H01L29/785 , H01L21/823807 , H01L21/823821 , H01L21/845 , H01L27/1211 , H01L29/66795 , H01L29/7842 , H01L29/78684
摘要： A semiconductor structure and method of manufacturing is provided. The method of manufacturing includes forming shallow trench isolation (STI) in a substrate and providing a first material and a second material on the substrate. The first material and the second material form a first island and second island at an pFET region and a nFET region, respectively. A tensile hard mask is formed on the first and the second island layer prior to forming finFETs. An Si epitaxial layer is grown on the sidewalls of the finFETs with the hard mask, now a capping layer which is under tension, preventing lateral buckling of the NFET fin.
摘要翻译： 提供半导体结构和制造方法。 制造方法包括在衬底中形成浅沟槽隔离（STI），并在衬底上提供第一材料和第二材料。 第一材料和第二材料分别在pFET区和nFET区形成第一岛和第二岛。 在形成finFET之前，在第一和第二岛层上形成拉伸硬掩模。 在具有硬掩模的finFET的侧壁上生长Si外延层，现在是处于张力下的封盖层，防止NFET鳍片的横向屈曲。
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公开(公告)号：US20060145274A1
公开(公告)日：2006-07-06
申请号：US11365502
申请日：2006-03-02
IPC分类号： H01L29/94
CPC分类号： H01L29/7842 , H01L21/823807 , H01L21/823828
摘要： A method for manufacturing an integrated circuit comprising a plurality of semiconductor devices including an n-type field effect transistor and a p-type field effect transistor by covering the p-type field effect transistor with a mask, and oxidizing a portion of a gate polysilicon of the n-type field effect transistor, such that tensile mechanical stresses are formed within a channel of the n-type field effect transistor.
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