公开(公告)号：US09590089B2

公开(公告)日：2017-03-07

申请号：US13997162

申请日：2011-12-30

申请人： Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Seung Hoon Sung

发明人： Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Seung Hoon Sung

IPC分类号： H01L29/78 ,  H01L29/423 ,  H01L29/66 ,  H01L29/775 ,  H01L29/06 ,  H01L29/10 ,  H01L29/786 ,  B82Y10/00 ,  B82Y40/00

CPC分类号： H01L29/0676 ,  B82Y10/00 ,  B82Y40/00 ,  H01L21/02603 ,  H01L21/30604 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/41791 ,  H01L29/4232 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/66613 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785 ,  H01L29/78696 ,  H01L2029/7858 ,  Y10S977/762 ,  Y10S977/89 ,  Y10S977/938

摘要： Nanowire-based gate all-around transistor devices having one or more active nanowires and one or more inactive nanowires are described herein. Methods to fabricate such devices are also described. One or more embodiments of the present invention are directed at approaches for varying the gate width of a transistor structure comprising a nanowire stack having a distinct number of nanowires. The approaches include rendering a certain number of nanowires inactive (i.e. so that current does not flow through the nanowire), by severing the channel region, burying the source and drain regions, or both. Overall, the gate width of nanowire-based structures having a plurality of nanowires may be varied by rendering a certain number of nanowires inactive, while maintaining other nanowires as active.

摘要翻译： 本文描述了具有一个或多个活性纳米线和一个或多个非活性纳米线的基于纳米线的栅极全周极晶体管器件。 还描述了制造这种装置的方法。 本发明的一个或多个实施例涉及用于改变包括具有不同数量的纳米线的纳米线堆叠的晶体管结构的栅极宽度的方法。 这些方法包括使一定数量的纳米线无效（即使得电流不流过纳米线），通过切断沟道区，掩埋源区和漏区，或两者。 总之，具有多个纳米线的纳米线基结构的栅极宽度可以通过使一定数量的纳米线无效而保持其它纳米线作为活性而变化。

公开(公告)号：US20140326953A1

公开(公告)日：2014-11-06

申请号：US14334636

申请日：2014-07-17

申请人： Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Mantu K. Hudait ,  Marko Radosavljevic ,  Jack T. Kavalieros ,  Willy Rachmady ,  Niloy Mukherjee ,  Robert S. Chau

发明人： Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Mantu K. Hudait ,  Marko Radosavljevic ,  Jack T. Kavalieros ,  Willy Rachmady ,  Niloy Mukherjee ,  Robert S. Chau

IPC分类号： H01L29/15 ,  H01L29/417 ,  H01L29/78

CPC分类号： H01L29/7784 ,  H01L29/151 ,  H01L29/155 ,  H01L29/201 ,  H01L29/205 ,  H01L29/401 ,  H01L29/41725 ,  H01L29/41775 ,  H01L29/42316 ,  H01L29/4236 ,  H01L29/517 ,  H01L29/66462 ,  H01L29/775 ,  H01L29/7783 ,  H01L29/78

摘要： Techniques are disclosed for providing a low resistance self-aligned contacts to devices formed in a semiconductor heterostructure. The techniques can be used, for example, for forming contacts to the gate, source and drain regions of a quantum well transistor fabricated in III-V and SiGe/Ge material systems. Unlike conventional contact process flows which result in a relatively large space between the source/drain contacts to gate, the resulting source and drain contacts provided by the techniques described herein are self-aligned, in that each contact is aligned to the gate electrode and isolated therefrom via spacer material.

摘要翻译： 公开了用于向半导体异质结构中形成的器件提供低电阻自对准触点的技术。 这些技术可以用于例如形成与在III-V和SiGe / Ge材料系统中制造的量子阱晶体管的栅极，源极和漏极区的接触。 不同于在源极/漏极接触到栅极之间的相对大的空间的常规接触工艺流程，由本文所描述的技术提供的所得到的源极和漏极触点是自对准的，因为每个触点与栅电极对准并且被隔离 通过间隔材料。

公开(公告)号：US20140291726A1

公开(公告)日：2014-10-02

申请号：US14302350

申请日：2014-06-11

申请人： Ravi Pillarisetty ,  Seung Hoon SUNG ,  Niti GOEL ,  Jack T. KAVALIEROS ,  Sansaptak DASGUPTA ,  Van H. LE ,  Willy RACHMADY ,  Marko RADOSAVLJEVIC ,  Gilbert DEWEY ,  Han Wui THEN ,  Niloy MUKHERJEE ,  Matthew V. METZ ,  Robert S. Chau

发明人： Ravi Pillarisetty ,  Seung Hoon SUNG ,  Niti GOEL ,  Jack T. KAVALIEROS ,  Sansaptak DASGUPTA ,  Van H. LE ,  Willy RACHMADY ,  Marko RADOSAVLJEVIC ,  Gilbert DEWEY ,  Han Wui THEN ,  Niloy MUKHERJEE ,  Matthew V. METZ ,  Robert S. Chau

IPC分类号： H01L27/092 ,  H01L29/78

CPC分类号： H01L21/845 ,  B82Y10/00 ,  B82Y40/00 ,  H01L21/02639 ,  H01L21/823807 ,  H01L21/8258 ,  H01L27/092 ,  H01L27/1211 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/6653 ,  H01L29/66795 ,  H01L29/6681 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785 ,  H01L29/7853 ,  H01L29/78696

摘要： Trench-confined selective epitaxial growth process in which epitaxial growth of a semiconductor device layer proceeds within the confines of a trench. In embodiments, a trench is fabricated to include a pristine, planar semiconductor seeding surface disposed at the bottom of the trench. Semiconductor regions around the seeding surface may be recessed relative to the seeding surface with Isolation dielectric disposed there on to surround the semiconductor seeding layer and form the trench. In embodiments to form the trench, a sacrificial hardmask fin may be covered in dielectric which is then planarized to expose the hardmask fin, which is then removed to expose the seeding surface. A semiconductor device layer is formed from the seeding surface through selective heteroepitaxy. In embodiments, non-planar devices are formed from the semiconductor device layer by recessing a top surface of the isolation dielectric. In embodiments, non-planar devices CMOS devices having high carrier mobility may be made from the semiconductor device layer.

公开(公告)号：US20130341704A1

公开(公告)日：2013-12-26

申请号：US13997162

申请日：2011-12-30

申请人： Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Seung Hoon Sung

发明人： Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Seung Hoon Sung

IPC分类号： H01L29/78 ,  H01L29/66

CPC分类号： H01L29/0676 ,  B82Y10/00 ,  B82Y40/00 ,  H01L21/02603 ,  H01L21/30604 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/41791 ,  H01L29/4232 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/66613 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785 ,  H01L29/78696 ,  H01L2029/7858 ,  Y10S977/762 ,  Y10S977/89 ,  Y10S977/938

摘要： Nanowire-based gate all-around transistor devices having one or more active nanowires and one or more inactive nanowires are described herein. Methods to fabricate such devices are also described. One or more embodiments of the present invention are directed at approaches for varying the gate width of a transistor structure comprising a nanowire stack having a distinct number of nanowires. The approaches include rendering a certain number of nanowires inactive (i.e. so that current does not flow through the nanowire), by severing the channel region, burying the source and drain regions, or both. Overall, the gate width of nanowire-based structures having a plurality of nanowires may be varied by rendering a certain number of nanowires inactive, while maintaining other nanowires as active.

摘要翻译： 本文描述了具有一个或多个活性纳米线和一个或多个非活性纳米线的基于纳米线的栅极全周极晶体管器件。 还描述了制造这种装置的方法。 本发明的一个或多个实施例涉及用于改变包括具有不同数量的纳米线的纳米线堆叠的晶体管结构的栅极宽度的方法。 这些方法包括使一定数量的纳米线无效（即使得电流不流过纳米线），通过切断沟道区，掩埋源区和漏区，或两者。 总之，具有多个纳米线的纳米线基结构的栅极宽度可以通过使一定数量的纳米线无效而保持其它纳米线作为活性而变化。

公开(公告)号：US08283653B2

公开(公告)日：2012-10-09

申请号：US12646477

申请日：2009-12-23

申请人： Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been Y. Jin ,  Robert S. Chau

发明人： Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been Y. Jin ,  Robert S. Chau

IPC分类号： H01L29/06

CPC分类号： H01L29/775 ,  B82Y10/00 ,  H01L21/76 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/66977 ,  H01L29/7782 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851

摘要： Techniques are disclosed for forming a non-planar germanium quantum well structure. In particular, the quantum well structure can be implemented with group IV or III-V semiconductor materials and includes a germanium fin structure. In one example case, a non-planar quantum well device is provided, which includes a quantum well structure having a substrate (e.g. SiGe or GaAs buffer on silicon), a IV or III-V material barrier layer (e.g., SiGe or GaAs or AlGaAs), a doping layer (e.g., delta/modulation doped), and an undoped germanium quantum well layer. An undoped germanium fin structure is formed in the quantum well structure, and a top barrier layer deposited over the fin structure. A gate metal can be deposited across the fin structure. Drain/source regions can be formed at respective ends of the fin structure.

摘要翻译： 公开了用于形成非平面锗量子阱结构的技术。 特别地，量子阱结构可以用IV或III-V族半导体材料实现，并且包括锗鳍结构。 在一个示例性情况下，提供了非平面量子阱器件，其包括具有衬底（例如硅上的SiGe或GaAs缓冲器），IV或III-V材料阻挡层（例如，SiGe或GaAs或 AlGaAs），掺杂层（例如，掺杂Δ/调制）和未掺杂的锗量子阱层。 在量子阱结构中形成未掺杂的锗鳍结构，以及沉积在鳍结构上的顶部势垒层。 栅极金属可以跨鳍片结构沉积。 排水/源极区域可以形成在翅片结构的相应端部处。

公开(公告)号：US20110147713A1

公开(公告)日：2011-06-23

申请号：US12646621

申请日：2009-12-23

申请人： Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Mantu K. Hudait ,  Marko Radosavljevic ,  Jack T. Kavalieros ,  Willy Rachmady ,  Niloy Mukherjee ,  Robert S. Chau

发明人： Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Mantu K. Hudait ,  Marko Radosavljevic ,  Jack T. Kavalieros ,  Willy Rachmady ,  Niloy Mukherjee ,  Robert S. Chau

IPC分类号： H01L29/66 ,  H01L21/336 ,  H01L29/78

CPC分类号： H01L29/7784 ,  H01L29/151 ,  H01L29/155 ,  H01L29/201 ,  H01L29/205 ,  H01L29/401 ,  H01L29/41725 ,  H01L29/41775 ,  H01L29/42316 ,  H01L29/4236 ,  H01L29/517 ,  H01L29/66462 ,  H01L29/775 ,  H01L29/7783 ,  H01L29/78

摘要： Techniques are disclosed for providing a low resistance self-aligned contacts to devices formed in a semiconductor heterostructure. The techniques can be used, for example, for forming contacts to the gate, source and drain regions of a quantum well transistor fabricated in III-V and SiGe/Ge material systems. Unlike conventional contact process flows which result in a relatively large space between the source/drain contacts to gate, the resulting source and drain contacts provided by the techniques described herein are self-aligned, in that each contact is aligned to the gate electrode and isolated therefrom via spacer material.

摘要翻译： 公开了用于向半导体异质结构中形成的器件提供低电阻自对准触点的技术。 这些技术可以用于例如形成与在III-V和SiGe / Ge材料系统中制造的量子阱晶体管的栅极，源极和漏极区的接触。 不同于在源极/漏极接触到栅极之间的相对大的空间的常规接触工艺流程，由本文所描述的技术提供的所得到的源极和漏极触点是自对准的，因为每个触点与栅电极对准并且被隔离 通过间隔材料。

公开(公告)号：US07821061B2

公开(公告)日：2010-10-26

申请号：US11729565

申请日：2007-03-29

申请人： Been-Yih Jin ,  Brian S. Doyle ,  Jack T. Kavalieros ,  Robert S. Chau

发明人： Been-Yih Jin ,  Brian S. Doyle ,  Jack T. Kavalieros ,  Robert S. Chau

IPC分类号： H01L21/00

CPC分类号： H01L21/02381 ,  B82Y10/00 ,  H01L21/02164 ,  H01L21/02236 ,  H01L21/0245 ,  H01L21/02507 ,  H01L21/02532 ,  H01L21/02603 ,  H01L21/30604 ,  H01L21/31658 ,  H01L21/76283 ,  H01L21/823807 ,  H01L29/0665 ,  H01L29/0673 ,  H01L29/0676 ,  H01L29/068 ,  H01L29/1054 ,  H01L29/165 ,  H01L29/42324 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66795 ,  H01L29/66818 ,  H01L29/775 ,  H01L29/785 ,  H01L29/78696

摘要： A method to provide a transistor or memory cell structure. The method comprises: providing a substrate including a lower Si substrate and an insulating layer on the substrate; providing a first projection extending above the insulating layer, the first projection including an Si material and a Si1-xGex material; and exposing the first projection to preferential oxidation to yield a second projection including a center region comprising Ge/Si1-yGey and a covering region comprising SiO2 and enclosing the center region.

摘要翻译： 一种提供晶体管或存储单元结构的方法。 该方法包括：在衬底上提供包括下Si衬底和绝缘层的衬底; 提供在所述绝缘层上方延伸的第一突起，所述第一突起包括Si材料和Si1-xGex材料; 以及将所述第一突起暴露于优先氧化以产生包括包含Ge / Si1-yGey的中心区域和包含SiO 2并包围所述中心区域的覆盖区域的第二突起。

公开(公告)号：US07485536B2

公开(公告)日：2009-02-03

申请号：US11326178

申请日：2005-12-30

申请人： Been-Yih Jin ,  Brian S. Doyle ,  Robert S. Chau ,  Jack T. Kavalieros

发明人： Been-Yih Jin ,  Brian S. Doyle ,  Robert S. Chau ,  Jack T. Kavalieros

IPC分类号： H01L21/335

CPC分类号： H01L29/0847 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823878 ,  H01L29/165 ,  H01L29/66636 ,  H01L29/66795 ,  H01L29/7851

摘要： A method including forming a channel region between source and drain regions in a substrate, the channel region including a first dopant profile; and forming a barrier layer between the channel region and a well of the substrate, the barrier layer including a second dopant profile different from the first dopant profile. An apparatus including a gate electrode on a substrate; source and drain regions formed in the substrate and separated by a channel region; and a barrier layer between a well of the substrate and the channel region, the barrier layer including a dopant profile different than a dopant profile of the channel region and different than a dopant profile of the well. A system including a computing device including a microprocessor, the microprocessor including a plurality of transistor devices formed in a substrate, each of the plurality of transistor devices including a gate electrode on the substrate; source and drain regions formed in the substrate and separated by a channel region; and a barrier layer between a well of the substrate and the channel region.

摘要翻译： 一种方法，包括在衬底中的源区和漏区之间形成沟道区，所述沟道区包括第一掺杂物分布; 以及在所述沟道区和所述衬底的阱之间形成阻挡层，所述阻挡层包括不同于所述第一掺杂剂分布的第二掺杂剂分布。 一种在基板上包括栅电极的装置; 源极和漏极区域形成在衬底中并被沟道区域分离; 以及在衬底的阱和沟道区之间的阻挡层，阻挡层包括不同于沟道区的掺杂物分布并且不同于阱的掺杂剂分布的掺杂剂分布。 一种包括包括微处理器的计算设备的系统，所述微处理器包括形成在衬底中的多个晶体管器件，所述多个晶体管器件中的每一个在所述衬底上包括栅电极; 源极和漏极区域形成在衬底中并被沟道区域分离; 以及衬底的阱和沟道区之间的阻挡层。

公开(公告)号：US08987794B2

公开(公告)日：2015-03-24

申请号：US13997118

申请日：2011-12-23

申请人： Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

发明人： Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

IPC分类号： H01L21/336 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786 ,  H01L29/78 ,  H01L29/165 ,  H01L29/66

CPC分类号： H01L29/7848 ,  H01L29/045 ,  H01L29/0669 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/165 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/78618 ,  H01L29/78696 ,  H01L2029/7858

摘要： A non-planar gate all-around device and method of fabrication thereby are described. In one embodiment, the device includes a substrate having a top surface with a first lattice constant. Embedded epi source and drain regions are formed on the top surface of the substrate. The embedded epi source and drain regions have a second lattice constant that is different from the first lattice constant. Channel nanowires having a third lattice are formed between and are coupled to the embedded epi source and drain regions. In an embodiment, the second lattice constant and the third lattice constant are different from the first lattice constant. The channel nanowires include a bottom-most channel nanowire and a bottom gate isolation is formed on the top surface of the substrate under the bottom-most channel nanowire. A gate dielectric layer is formed on and all-around each channel nanowire. A gate electrode is formed on the gate dielectric layer and surrounding each channel nanowire.

摘要翻译： 描述了非平面栅极全面器件及其制造方法。 在一个实施例中，该器件包括具有第一晶格常数的顶表面的衬底。 嵌入的epi源极和漏极区域形成在衬底的顶表面上。 嵌入的epi源极和漏极区具有不同于第一晶格常数的第二晶格常数。 具有第三晶格的沟道纳米线形成在嵌入的epi源极和漏极区之间并耦合到嵌入的epi源极和漏极区。 在一个实施例中，第二晶格常数和第三晶格常数不同于第一晶格常数。 通道纳米线包括最底部的沟道纳米线，并且在最底部的沟道纳米线下方的衬底的顶表面上形成底栅隔离。 在每个通道纳米线上形成栅极电介质层。 在栅极电介质层上形成栅电极并围绕每个沟道纳米线。

公开(公告)号：US20140225065A1

公开(公告)日：2014-08-14

申请号：US13997118

申请日：2011-12-23

申请人： Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

发明人： Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

IPC分类号： H01L29/06 ,  H01L29/78 ,  H01L29/66

CPC分类号： H01L29/7848 ,  H01L29/045 ,  H01L29/0669 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/165 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/78618 ,  H01L29/78696 ,  H01L2029/7858

摘要： A non-planar gate all-around device and method of fabrication thereby are described. In one embodiment, the device includes a substrate having a top surface with a first lattice constant. Embedded epi source and drain regions are formed on the top surface of the substrate. The embedded epi source and drain regions have a second lattice constant that is different from the first lattice constant. Channel nanowires having a third lattice are formed between and are coupled to the embedded epi source and drain regions. In an embodiment, the second lattice constant and the third lattice constant are different from the first lattice constant. The channel nanowires include a bottom-most channel nanowire and a bottom gate isolation is formed on the top surface of the substrate under the bottom-most channel nanowire. A gate dielectric layer is formed on and all-around each channel nanowire. A gate electrode is formed on the gate dielectric layer and surrounding each channel nanowire.

摘要翻译： 描述了非平面栅极全面器件及其制造方法。 在一个实施例中，该器件包括具有第一晶格常数的顶表面的衬底。 嵌入的epi源极和漏极区域形成在衬底的顶表面上。 嵌入的epi源极和漏极区具有不同于第一晶格常数的第二晶格常数。 具有第三晶格的沟道纳米线形成在嵌入的epi源极和漏极区之间并耦合到嵌入的epi源极和漏极区。 在一个实施例中，第二晶格常数和第三晶格常数不同于第一晶格常数。 通道纳米线包括最底部的沟道纳米线，并且在最底部的沟道纳米线下方的衬底的顶表面上形成底栅隔离。 在每个通道纳米线上形成栅极电介质层。 在栅极电介质层上形成栅电极并围绕每个沟道纳米线。