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公开(公告)号:US20140175378A1
公开(公告)日:2014-06-26
申请号:US13722746
申请日:2012-12-20
申请人: Niti Goel , Niloy Mukherjee , Seung Hoon Sung , Van Le , Matthew Metz , Jack Kavalieros , RAVI PILLARISETTY , Sanaz Gardner , SANSAPTAK DASGUPTA , Willy Rachmady , BENJAMIN CHU-KUNG , MARKO RADOSAVLJEVIC , Gilbert Dewey , Marc French , JESSICA KACHIAN , SATYARTH SURI , Robert Chau
发明人: Niti Goel , Niloy Mukherjee , Seung Hoon Sung , Van Le , Matthew Metz , Jack Kavalieros , RAVI PILLARISETTY , Sanaz Gardner , SANSAPTAK DASGUPTA , Willy Rachmady , BENJAMIN CHU-KUNG , MARKO RADOSAVLJEVIC , Gilbert Dewey , Marc French , JESSICA KACHIAN , SATYARTH SURI , Robert Chau
IPC分类号: H01L21/20 , H01L21/764
CPC分类号: H01L21/764 , H01L21/02381 , H01L21/0245 , H01L21/02494 , H01L21/02507 , H01L21/02532 , H01L21/76232
摘要: An embodiment includes depositing a material onto a substrate where the material includes a different lattice constant than the substrate (e.g., III-V or IV epitaxial (EPI) material on a Si substrate). An embodiment includes an EPI layer formed within a trench having walls that narrow as the trench extends upwards. An embodiment includes an EPI layer formed within a trench using multiple growth temperatures. A defect barrier, formed in the EPI layer when the temperature changes, contains defects within the trench and below the defect barrier. The EPI layer above the defect barrier and within the trench is relatively defect free. An embodiment includes an EPI layer annealed within a trench to induce defect annihilation. An embodiment includes an EPI superlattice formed within a trench and covered with a relatively defect free EPI layer (that is still included in the trench). Other embodiments are described herein.
摘要翻译: 实施例包括将材料沉积到衬底上,其中材料包括与衬底(例如Si衬底上的III-V或IV外延(EPI)材料)不同的晶格常数。 一个实施例包括形成在沟槽内的EPI层,其具有随着沟槽向上延伸而变窄的壁。 实施例包括使用多个生长温度在沟槽内形成的EPI层。 当温度变化时,在EPI层中形成的缺陷屏障在沟槽内和缺陷屏障之下包含缺陷。 缺陷屏障之上和沟槽内的EPI层相对无缺陷。 一个实施方案包括在沟槽内退火以引发缺陷湮灭的EPI层。 一个实施例包括形成在沟槽内并覆盖有相对无缺陷的EPI层(仍包含在沟槽中)的EPI超晶格。 本文描述了其它实施例。
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公开(公告)号:US20140175512A1
公开(公告)日:2014-06-26
申请号:US13722824
申请日:2012-12-20
申请人: BENJAMIN CHU-KUNG , VAN LE , ROBERT CHAU , SANSAPTAK DASGUPTA , GILBERT DEWEY , NITI GOEL , JACK KAVALIEROS , MATTHEW METZ , NILOY MUKHERJEE , RAVI PILLARISETTY , WILLY RACHMADY , MARKO RADOSAVLJEVIC , HAN WUI THEN , NANCY ZELICK
发明人: BENJAMIN CHU-KUNG , VAN LE , ROBERT CHAU , SANSAPTAK DASGUPTA , GILBERT DEWEY , NITI GOEL , JACK KAVALIEROS , MATTHEW METZ , NILOY MUKHERJEE , RAVI PILLARISETTY , WILLY RACHMADY , MARKO RADOSAVLJEVIC , HAN WUI THEN , NANCY ZELICK
IPC分类号: H01L29/78
CPC分类号: H01L21/823821 , H01L27/0924 , H01L29/1054 , H01L29/165 , H01L29/785
摘要: An embodiment uses a very thin layer nanostructure (e.g., a Si or SiGe fin) as a template to grow a crystalline, non-lattice matched, epitaxial (EPI) layer. In one embodiment the volume ratio between the nanostructure and EPI layer is such that the EPI layer is thicker than the nanostructure. In some embodiments a very thin bridge layer is included between the nanostructure and EPI. An embodiment includes a CMOS device where EPI layers covering fins (or that once covered fins) are oppositely polarized from one another. An embodiment includes a CMOS device where an EPI layer covering a fin (or that once covered a fin) is oppositely polarized from a bridge layer covering a fin (or that once covered a fin). Thus, various embodiments are disclosed from transferring defects from an EPI layer to a nanostructure (that is left present or removed). Other embodiments are described herein.
摘要翻译: 一个实施例使用非常薄的层纳米结构(例如,Si或SiGe鳍)作为模板来生长晶体,非晶格匹配的外延(EPI)层。 在一个实施方案中,纳米结构和EPI层之间的体积比使得EPI层比纳米结构厚。 在一些实施例中,在纳米结构和EPI之间包括非常薄的桥接层。 一个实施例包括一个CMOS器件,其中覆盖翅片(或一旦被覆盖的翅片)的EPI层彼此相反地极化。 一个实施例包括一个CMOS器件,其中覆盖翅片(或一旦被覆盖的翅片)的EPI层与覆盖翅片(或一旦被覆盖的翅片)的桥接层相反地偏振。 因此,从EPI层转移到纳米结构(剩下的存在或去除)的缺陷中公开了各种实施例。 本文描述了其它实施例。
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公开(公告)号:US20140175509A1
公开(公告)日:2014-06-26
申请号:US13723563
申请日:2012-12-21
申请人: BENJAMIN CHU-KUNG , VAN LE , ROBERT CHAU , SANSAPTAK DASGUPTA , GILBERT DEWEY , NITI GOEL , JACK KAVALIEROS , MATTHEW METZ , NILOY MUKHERJEE , RAVI PILLARISETTY , WILLY RACHMADY , MARKO RADOSAVLJEVIC , HAN WUI THEN , NANCY ZELICK
发明人: BENJAMIN CHU-KUNG , VAN LE , ROBERT CHAU , SANSAPTAK DASGUPTA , GILBERT DEWEY , NITI GOEL , JACK KAVALIEROS , MATTHEW METZ , NILOY MUKHERJEE , RAVI PILLARISETTY , WILLY RACHMADY , MARKO RADOSAVLJEVIC , HAN WUI THEN , NANCY ZELICK
IPC分类号: H01L29/06
CPC分类号: H01L29/7391 , H01L29/0676 , H01L29/66242 , H01L29/6625 , H01L29/66356 , H01L29/66393 , H01L29/732 , H01L29/735 , H01L29/737 , H01L29/7371 , H01L29/7436 , H01L29/785
摘要: An embodiment concerns forming an EPI film on a substrate where the EPI film has a different lattice constant from the substrate. The EPI film and substrate may include different materials to collectively form a hetero-epitaxial device having, for example, a Si and/or SiGe substrate and a III-V or IV film. The EPI film may be one of multiple EPI layers or films and the films may include different materials from one another and may directly contact one another. Further, the multiple EPI layers may be doped differently from another in terms of doping concentration and/or doping polarity. One embodiment includes creating a horizontally oriented hetero-epitaxial structure. Another embodiment includes a vertically oriented hetero-epitaxial structure. The hetero-epitaxial structures may include, for example, a bipolar junction transistor, heterojunction bipolar transistor, thyristor, and tunneling field effect transistor among others. Other embodiments are described herein.
摘要翻译: 一个实施例涉及在衬底上形成EPI膜,其中EPI膜具有与衬底不同的晶格常数。 EPI膜和衬底可以包括不同的材料以共同形成具有例如Si和/或SiGe衬底和III-V或IV膜的异质外延装置。 EPI膜可以是多个EPI层或膜中的一个,并且膜可以包括彼此不同的材料并且可以直接彼此接触。 此外,在掺杂浓度和/或掺杂极性方面,多个EPI层可以与另一个不同地被掺杂。 一个实施例包括产生水平取向的异质外延结构。 另一实施例包括垂直取向的异质外延结构。 异质外延结构可以包括例如双极结型晶体管,异质结双极晶体管,晶闸管和隧道场效应晶体管等。 本文描述了其它实施例。
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公开(公告)号:US20140175379A1
公开(公告)日:2014-06-26
申请号:US13721759
申请日:2012-12-20
申请人: BENJAMIN CHU-KUNG , VAN LE , ROBERT CHAU , SANSAPTAK DASGUPTA , GILBERT DEWEY , NITIKA GOEL , JACK KAVALIEROS , MATTHEW METZ , NILOY MUKHERJEE , RAVI PILLARISETTY , WILLY RACHMADY , MARKO RADOSAVLJEVIC , HAN WUI THEN , NANCY ZELICK
发明人: BENJAMIN CHU-KUNG , VAN LE , ROBERT CHAU , SANSAPTAK DASGUPTA , GILBERT DEWEY , NITIKA GOEL , JACK KAVALIEROS , MATTHEW METZ , NILOY MUKHERJEE , RAVI PILLARISETTY , WILLY RACHMADY , MARKO RADOSAVLJEVIC , HAN WUI THEN , NANCY ZELICK
IPC分类号: H01L29/06
CPC分类号: H01L29/1033 , H01L21/3086 , H01L29/04 , H01L29/0665 , H01L29/0669 , H01L29/0673 , H01L29/165 , H01L29/267 , H01L29/42392 , H01L29/66545 , H01L29/775 , H01L29/785 , H01L29/78696
摘要: An embodiment of the invention includes an epitaxial layer that directly contacts, for example, a nanowire, fin, or pillar in a manner that allows the layer to relax with two or three degrees of freedom. The epitaxial layer may be included in a channel region of a transistor. The nanowire, fin, or pillar may be removed to provide greater access to the epitaxial layer. Doing so may allow for a “all-around gate” structure where the gate surrounds the top, bottom, and sidewalls of the epitaxial layer. Other embodiments are described herein.
摘要翻译: 本发明的实施例包括外延层,其以允许该层以两个或三个自由度放松的方式直接接触例如纳米线,翅片或支柱。 外延层可以包括在晶体管的沟道区中。 可以去除纳米线,鳍或柱以提供对外延层的更大的访问。 这样做可以允许围绕外延层的顶部,底部和侧壁的“全向栅极”结构。 本文描述了其它实施例。
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