-
公开(公告)号：US07262087B2
公开(公告)日：2007-08-28
申请号：US10905062
申请日：2004-12-14
IPC分类号： H01L21/84
CPC分类号： H01L21/84 , H01L27/1203 , H01L29/7843 , Y10S438/938
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 compressive dielectric layer atop the substrate and a first semiconducting layer atop the compressive dielectric layer, wherein the compressive dielectric layer transfers tensile stresses to the first semiconducting layer; and a second layered stack atop the substrate, the second layered stack comprising an tensile dielectric layer atop the substrate and a second semiconducting layer atop the tensile dielectric layer, wherein the tensile dielectric layer transfers compressive stresses to the second semiconducting layer. The tensile dielectric layer and the compressive dielectric layer preferably comprise nitride, such as Si3N4.
-
公开(公告)号：US07312134B2
公开(公告)日：2007-12-25
申请号：US11741441
申请日：2007-04-27
IPC分类号： H01L21/84
CPC分类号： H01L21/84 , H01L27/1203 , H01L29/7843 , Y10S438/938
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 compressive dielectric layer atop the substrate and a first semiconducting layer atop the compressive dielectric layer, wherein the compressive dielectric layer transfers tensile stresses to the first semiconducting layer; and a second layered stack atop the substrate, the second layered stack comprising an tensile dielectric layer atop the substrate and a second semiconducting layer atop the tensile dielectric layer, wherein the tensile dielectric layer transfers compressive stresses to the second semiconducting layer. The tensile dielectric layer and the compressive dielectric layer preferably comprise nitride, such as Si3N4.
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结构包括基底; 所述第一层叠堆叠包括位于所述衬底顶部的压缩介电层和位于所述压缩介电层顶部的第一半导体层，其中所述压缩介电层将拉伸应力传递到所述第一半导体层; 以及在所述衬底顶部的第二层叠堆叠，所述第二层叠堆叠包括位于所述衬底顶部的拉伸介电层和位于所述拉伸介电层顶部的第二半导体层，其中所述拉伸介电层将压缩应力传递到所述第二半导体层。 拉伸介电层和压电介电层优选包括氮化物，例如Si 3 N 4 N 4。
-
3.发明授权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：US06977194B2
公开(公告)日：2005-12-20
申请号：US10695752
申请日：2003-10-30
申请人： Michael P. Belyansky , Dureseti Chidambarrao , Omer H. Dokumaci , Bruce B. Doris , Oleg Gluschenkov
发明人： Michael P. Belyansky , Dureseti Chidambarrao , Omer H. Dokumaci , Bruce B. Doris , Oleg Gluschenkov
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。
-
4.发明授权Structure and method to improve channel mobility by gate electrode stress modification 失效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：US07750410B2
公开(公告)日：2010-07-06
申请号：US11175223
申请日：2005-07-07
申请人： Michael P. Belyansky , Dureseti Chidambarrao , Omer H. Dokumaci , Bruce B. Doris , Oleg Gluschenkov
发明人： Michael P. Belyansky , Dureseti Chidambarrao , Omer H. Dokumaci , Bruce B. Doris , Oleg Gluschenkov
IPC分类号： H01L29/72
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 2 ，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。
-
公开(公告)号：US07374987B2
公开(公告)日：2008-05-20
申请号：US10935136
申请日：2004-09-07
IPC分类号： H01L21/336
CPC分类号： H01L29/6656 , H01L21/823807 , H01L21/823864 , H01L21/84 , H01L27/1203 , H01L29/42316 , H01L29/7842 , H01L29/7843 , H01L29/808
摘要： A substrate under tension and/or compression improves performance of devices fabricated therein. Tension and/or compression can be imposed on a substrate through selection of appropriate gate sidewall spacer material disposed above a device channel region wherein the spacers are formed adjacent both the gate and the substrate and impose forces on adjacent substrate areas. Another embodiment comprises compressive stresses imposed in the plane of the channel using SOI sidewall spacers made of polysilicon that is expanded by oxidation. The substrate areas under compression or tension exhibit charge mobility characteristics different from those of a non-stressed substrate. By controllably varying these stresses within NFET and PFET devices formed on a substrate, improvements in IC performance have been demonstrated.
摘要翻译： 在张力和/或压缩下的基底改善了在其中制造的器件的性能。 可以通过选择设置在器件沟道区域上方的适当的栅极侧壁间隔物施加张力和/或压缩，其中间隔物邻近栅极和衬底形成，并且在邻近衬底区域上施加力。 另一个实施例包括使用通过氧化扩展的多晶硅制成的SOI侧壁间隔施加在沟道的平面中的压应力。 在压缩或张力下的衬底区域表现出不同于非应力衬底的电荷迁移率特性。 通过可控地改变在衬底上形成的NFET和PFET器件内的这些应力，已经证明了IC性能的提高。
-
公开(公告)号：US06974981B2
公开(公告)日：2005-12-13
申请号：US10318600
申请日：2002-12-12
IPC分类号： H01L21/76 , H01L21/762 , H01L21/8238 , H01L29/80 , H01L31/109 , H01L31/112 , H01L29/774
CPC分类号： H01L29/7846 , H01L21/76232 , H01L21/823807 , H01L21/823878 , H01L29/785
摘要： A substrate under tension and/or compression improves performance of devices fabricated therein. Tension and/or compression can be imposed on a substrate through selection of appropriate STI fill material. The STI regions are formed in the substrate layer and impose forces on adjacent substrate areas. The substrate areas under compression or tension exhibit charge mobility characteristics different from those of a non-stressed substrate. By controllably varying these stresses within NFET and PFET devices formed on a substrate, improvements in IC performance are achieved.
摘要翻译： 在张力和/或压缩下的基底改善了在其中制造的器件的性能。 可以通过选择适当的STI填充材料将张力和/或压缩施加在基底上。 STI区域形成在衬底层中并且在相邻衬底区域上施加力。 在压缩或张力下的衬底区域表现出不同于非应力衬底的电荷迁移率特性。 通过可控地改变在衬底上形成的NFET和PFET器件内的这些应力，实现了IC性能的提高。
-
公开(公告)号：US06825529B2
公开(公告)日：2004-11-30
申请号：US10318602
申请日：2002-12-12
IPC分类号： H01L2976
CPC分类号： H01L29/6656 , H01L21/823807 , H01L21/823864 , H01L21/84 , H01L27/1203 , H01L29/42316 , H01L29/7842 , H01L29/7843 , H01L29/808
摘要： A substrate under tension and/or compression improves performance of devices fabricated therein. Tension and/or compression can be imposed on a substrate through selection of appropriate gate sidewall spacer material disposed above a device channel region wherein the spacers are formed adjacent both the gate and the substrate and impose forces on adjacent substrate areas. Another embodiment comprises compressive stresses imposed in the plane of the channel using SOI sidewall spacers made of polysilicon that is expanded by oxidation. The substrate areas under compression or tension exhibit charge mobility characteristics different from those of a non-stressed substrate. By controllably varying these stresses within NFET and PFET devices formed on a substrate, improvements in IC performance have been demonstrated.
摘要翻译： 在张力和/或压缩下的基底改善了在其中制造的器件的性能。 可以通过选择设置在器件沟道区域上方的适当的栅极侧壁间隔物施加张力和/或压缩，其中间隔物邻近栅极和衬底形成，并且在邻近衬底区域上施加力。 另一个实施例包括使用通过氧化扩展的多晶硅制成的SOI侧壁间隔施加在沟道的平面中的压应力。 在压缩或张力下的衬底区域表现出不同于非应力衬底的电荷迁移率特性。 通过可控地改变在衬底上形成的NFET和PFET器件内的这些应力，已经证明了IC性能的提高。
-
8.发明授权Method for differential oxidation rate reduction for n-type and p-type materials 失效n型和p型材料差示氧化速率降低的方法公开(公告)号：US06667197B1
公开(公告)日：2003-12-23
申请号：US10314499
申请日：2002-12-06
IPC分类号： H01L2100
CPC分类号： H01L21/823842 , H01L21/823864
摘要： A method of forming a substantially uniform oxide film over surfaces with different level of doping and/or different dopant type is disclosed. In one aspect, a method for forming a uniform oxide spacer on the sidewalls of heavily doped n- and p-type gates is disclosed. The method includes providing a semiconductor substrate having at least two regions with dissimilar dopant characteristics, optionally heating the substrate; and forming a uniform oxide layer over the at least two regions by exposing the substrate to a gaseous mixture including atomic oxygen.
摘要翻译： 公开了在具有不同掺杂水平和/或不同掺杂剂类型的表面上形成基本上均匀的氧化膜的方法。 一方面，公开了在重掺杂的n型和p型栅极的侧壁上形成均匀的氧化物间隔物的方法。 该方法包括提供具有至少两个具有不同掺杂特性的区域的半导体衬底，可选地加热衬底; 以及通过将所述衬底暴露于包括原子氧的气体混合物，在所述至少两个区域上形成均匀的氧化物层。
-
公开(公告)号：US06878582B2
公开(公告)日：2005-04-12
申请号：US10876873
申请日：2004-06-25
IPC分类号： H01L21/265 , H01L21/28 , H01L21/336 , H01L29/49 , H01L29/78 , H01L21/8238
CPC分类号： H01L29/4983 , H01L21/26586 , H01L21/28105 , H01L29/66484 , H01L29/665 , H01L29/6656 , H01L29/6659 , H01L29/7831 , H01L29/7836 , Y10S257/90
摘要： A low-GIDL current MOSFET device structure and a method of fabrication thereof which provides a low-GIDL current. The MOSFET device structure contains a central gate conductor whose edges may slightly overlap the source/drain diffusions, and left and right side wing gate conductors which are separated from the central gate conductor by a thin insulating and diffusion barrier layer.
-
公开(公告)号：US06764883B1
公开(公告)日：2004-07-20
申请号：US10338071
申请日：2003-01-07
IPC分类号： H01L2100
CPC分类号： B82Y30/00 , B82Y10/00 , B82Y20/00 , H01L21/02381 , H01L21/0245 , H01L21/02488 , H01L21/02529 , H01L21/02532 , H01L21/0262 , H01L21/0332 , H01L21/0337 , H01L31/0352
摘要： A method for forming a uniform layered structure comprising an ultra-thin layer of amorphous silicon and its thermal oxide is disclosed. In one aspect, a method for forming a nanolaminate of silicon oxide on a substrate is disclosed. In another aspect, a method for forming a patterned hard mask on a substrate is disclosed. The patterned hard mask includes a nanolaminate of silicon and silicon oxide. The methods are characterized by the oxidation of an amorphous silicon layer using atomic oxygen.
-
-
-
-
-
-
-
-
-
搜索结果
506 条记录 (耗时 0.028 秒)