公开(公告)号：US20220149209A1

公开(公告)日：2022-05-12

申请号：US17580550

申请日：2022-01-20

申请人： Intel Corporation

发明人： Gilbert DEWEY ,  Aaron LILAK ,  Van H. LE ,  Abhishek A. SHARMA ,  Tahir GHANI ,  Willy RACHMADY ,  Rishabh MEHANDRU ,  Nazila HARATIPOUR ,  Jack T. KAVALIEROS ,  Benjamin CHU-KUNG ,  Seung Hoon SUNG ,  Shriram SHIVARAMAN

IPC分类号： H01L29/786 ,  H01L29/66

摘要： Thin film transistors having U-shaped features are described. In an example, integrated circuit structure including a gate electrode above a substrate, the gate electrode having a trench therein. A channel material layer is over the gate electrode and in the trench, the channel material layer conformal with the trench. A first source or drain contact is coupled to the channel material layer at a first end of the channel material layer outside of the trench. A second source or drain contact is coupled to the channel material layer at a second end of the channel material layer outside of the trench.

公开(公告)号：US20220093797A1

公开(公告)日：2022-03-24

申请号：US17541199

申请日：2021-12-02

申请人： Intel Corporation

发明人： Glenn A. GLASS ,  Anand S. MURTHY ,  Karthik JAMBUNATHAN ,  Cory C. BOMBERGER ,  Tahir GHANI ,  Jack T. KAVALIEROS ,  Benjamin CHU-KUNG ,  Seung Hoon SUNG ,  Siddharth CHOUKSEY

IPC分类号： H01L29/78 ,  H01L29/167 ,  H01L29/417 ,  H01L29/423

摘要： Integrated circuit transistor structures are disclosed that reduce n-type dopant diffusion, such as phosphorous or arsenic, from the source region and the drain region of a germanium n-MOS device into adjacent shallow trench isolation (STI) regions during fabrication. The n-MOS transistor device may include at least 75% germanium by atomic percentage. In an example embodiment, the structure includes an intervening diffusion barrier deposited between the n-MOS transistor and the STI region to provide dopant diffusion reduction. In some embodiments, the diffusion barrier may include silicon dioxide with carbon concentrations between 5 and 50% by atomic percentage. In some embodiments, the diffusion barrier may be deposited using chemical vapor deposition (CVD), atomic layer deposition (ALD), or physical vapor deposition (PVD) techniques to achieve a diffusion barrier thickness in the range of 1 to 5 nanometers.

公开(公告)号：US20190229022A1

公开(公告)日：2019-07-25

申请号：US16372272

申请日：2019-04-01

申请人： Intel Corporation

发明人： Marko RADOSAVLJEVIC ,  Ravi PILLARISETTY ,  Gilbert DEWEY ,  Niloy MUKHERJEE ,  Jack KAVALIEROS ,  Willy RACHMADY ,  Van LE ,  Benjamin CHU-KUNG ,  Matthew METZ ,  Robert CHAU

IPC分类号： H01L21/84 ,  H01L21/8258 ,  H01L21/8238 ,  H01L21/02 ,  H01L21/306 ,  H01L29/20 ,  H01L29/16 ,  H01L29/06 ,  H01L27/092 ,  H01L29/423 ,  H01L29/786 ,  B82Y10/00 ,  H01L29/775 ,  H01L29/66 ,  H01L27/12

CPC分类号： H01L21/845 ,  B82Y10/00 ,  H01L21/0228 ,  H01L21/02532 ,  H01L21/02546 ,  H01L21/30604 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/8258 ,  H01L27/092 ,  H01L27/0922 ,  H01L27/0924 ,  H01L27/1211 ,  H01L29/0673 ,  H01L29/16 ,  H01L29/20 ,  H01L29/205 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66469 ,  H01L29/775 ,  H01L29/785 ,  H01L29/7853 ,  H01L29/78696

摘要： Architectures and techniques for co-integration of heterogeneous materials, such as group III-V semiconductor materials and group IV semiconductors (e.g., Ge) on a same substrate (e.g. silicon). In embodiments, multi-layer heterogeneous semiconductor material stacks having alternating nanowire and sacrificial layers are employed to release nanowires and permit formation of a coaxial gate structure that completely surrounds a channel region of the nanowire transistor. In embodiments, individual PMOS and NMOS channel semiconductor materials are co-integrated with a starting substrate having a blanket layers of alternating Ge/III-V layers. In embodiments, vertical integration of a plurality of stacked nanowires within an individual PMOS and individual NMOS device enable significant drive current for a given layout area.

公开(公告)号：US20190148491A1

公开(公告)日：2019-05-16

申请号：US16248708

申请日：2019-01-15

申请人： Intel Corporation

发明人： Van H. LE ,  Benjamin CHU-KUNG ,  Harold Hal W. KENNEL ,  Willy RACHMADY ,  Ravi PILLARISETTY ,  Jack T. KAVALIEROS

IPC分类号： H01L29/06 ,  H01L29/78 ,  H01L29/423 ,  H01L29/66 ,  H01L29/161 ,  H01L29/15 ,  H01L29/165 ,  H01L29/10 ,  H01L21/283 ,  H01L21/02 ,  H01L29/786 ,  H01L29/08

CPC分类号： H01L29/0673 ,  H01L21/02532 ,  H01L21/283 ,  H01L29/0649 ,  H01L29/0847 ,  H01L29/1054 ,  H01L29/155 ,  H01L29/161 ,  H01L29/165 ,  H01L29/42392 ,  H01L29/66431 ,  H01L29/66477 ,  H01L29/66651 ,  H01L29/66795 ,  H01L29/78 ,  H01L29/7842 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/78681 ,  H01L29/78687 ,  H01L29/78696

摘要： Transistor structures having channel regions comprising alternating layers of compressively and tensilely strained epitaxial materials are provided. The alternating epitaxial layers can form channel regions in single and multigate transistor structures. In alternate embodiments, one of the two alternating layers is selectively etched away to form nanoribbons or nanowires of the remaining material. The resulting strained nanoribbons or nanowires form the channel regions of transistor structures. Also provided are computing devices comprising transistors comprising channel regions comprised of alternating compressively and tensilely strained epitaxial layers and computing devices comprising transistors comprising channel regions comprised of strained nanoribbons or nanowires.

公开(公告)号：US20170236928A1

公开(公告)日：2017-08-17

申请号：US15499774

申请日：2017-04-27

申请人： Intel Corporation

发明人： Sansaptak DASGUPTA ,  Han Wui THEN ,  Marko RADOSAVLJEVIC ,  Sanaz K. GARDNER ,  Seung Hoon SUNG ,  Benjamin CHU-KUNG ,  Robert S. CHAU

IPC分类号： H01L29/778 ,  H01L29/423 ,  H01L29/66 ,  H01L21/306 ,  H01L29/20

CPC分类号： H01L29/7783 ,  H01L21/30612 ,  H01L21/30617 ,  H01L29/155 ,  H01L29/2003 ,  H01L29/4236 ,  H01L29/66462 ,  H01L29/7786

摘要： Transistors or transistor layers include an InAlN and AlGaN bi-layer capping stack on a 2DEG GaN channel, such as for GaN MOS structures on Si substrates. The GaN channel may be formed in a GaN buffer layer or stack, to compensate for the high crystal structure lattice size and coefficient of thermal expansion mismatch between GaN and Si. The bi-layer capping stack an upper InAlN layer on a lower AlGaN layer to induce charge polarization in the channel, compensate for poor composition uniformity (e.g., of Al), and compensate for rough surface morphology of the bottom surface of the InAlN material. It may lead to a sheet resistance between 250 and 350 ohms/sqr. It may also reduce bowing of the GaN on Si wafers during growth of the layer of InAlN material, and provide a AlGaN setback layer for etching the InAlN layer in the gate region.

公开(公告)号：US20160308041A1

公开(公告)日：2016-10-20

申请号：US15036780

申请日：2013-12-23

申请人： INTEL CORPORATION

发明人： Han Wui Then ,  Robert S. CHAU ,  Sansaptak DASGUPTA ,  Marko RADOSAVLJEVIC ,  Benjamin CHU-KUNG ,  Seung Hoon Hoon SUNG ,  Sanaz K. GARDNER ,  Ravi PILLARISETTY

IPC分类号： H01L29/78 ,  H01L29/20 ,  H01L29/66 ,  H01L29/32 ,  H01L29/34 ,  H01L29/08 ,  H01L29/06 ,  H01L29/205

CPC分类号： H01L29/785 ,  H01L21/8252 ,  H01L21/84 ,  H01L27/0605 ,  H01L27/1211 ,  H01L29/0649 ,  H01L29/0847 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/32 ,  H01L29/34 ,  H01L29/66462 ,  H01L29/66522 ,  H01L29/66795

摘要： Techniques are disclosed for forming a GaN transistor on a semiconductor substrate. An insulating layer forms on top of a semiconductor substrate. A trench, filled with a trench material comprising a III-V semiconductor material, forms through the insulating layer and extends into the semiconductor substrate. A channel structure, containing III-V material having a defect density lower than the trench material, forms directly on top of the insulating layer and adjacent to the trench. A source and drain form on opposite sides of the channel structure, and a gate forms on the channel structure. The semiconductor substrate forms a plane upon which both GaN transitors and other transistors can form.

摘要翻译： 公开了在半导体衬底上形成GaN晶体管的技术。 在半导体衬底的顶部形成绝缘层。 填充有包含III-V族半导体材料的沟槽材料的沟槽通过绝缘层形成并延伸到半导体衬底中。 含有缺陷密度低于沟槽材料的III-V材料的沟道结构直接形成在绝缘层的顶部并且与沟槽相邻。 在沟道结构的相对侧上的源极和漏极形式，以及在沟道结构上形成栅极。 半导体衬底形成可以形成GaN移动器和其它晶体管的平面。

公开(公告)号：US20160064512A1

公开(公告)日：2016-03-03

申请号：US14936609

申请日：2015-11-09

申请人： Intel Corporation

发明人： Han Wui Then ,  Robert CHAU ,  Benjamin CHU-KUNG ,  Gilbert DEWEY ,  Jack KAVALIEROS ,  Matthew METZ ,  Niloy MUKHERJEE ,  Ravi PILLARISETTY ,  Marko RADOSAVLJEVIC

IPC分类号： H01L29/66 ,  H01L29/20 ,  H01L29/06

CPC分类号： H01L29/158 ,  B82Y10/00 ,  H01L21/02603 ,  H01L23/66 ,  H01L27/0605 ,  H01L27/0886 ,  H01L29/045 ,  H01L29/0669 ,  H01L29/0673 ,  H01L29/0676 ,  H01L29/068 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/42392 ,  H01L29/66431 ,  H01L29/66462 ,  H01L29/66469 ,  H01L29/66522 ,  H01L29/66742 ,  H01L29/775 ,  H01L29/778 ,  H01L29/7786 ,  H01L29/785 ,  H01L29/78618 ,  H01L29/78681 ,  H01L29/78696 ,  H01L2223/6677 ,  Y10S977/938

摘要： A group III-N nanowire is disposed on a substrate. A longitudinal length of the nanowire is defined into a channel region of a first group III-N material, a source region electrically coupled with a first end of the channel region, and a drain region electrically coupled with a second end of the channel region. A second group III-N material on the first group III-N material serves as a charge inducing layer, and/or barrier layer on surfaces of nanowire. A gate insulator and/or gate conductor coaxially wraps completely around the nanowire within the channel region. Drain and source contacts may similarly coaxially wrap completely around the drain and source regions.

公开(公告)号：US20160056244A1

公开(公告)日：2016-02-25

申请号：US14779257

申请日：2013-06-28

申请人： INTEL CORPORATION

发明人： Sansaptak DASGUPTA ,  Han Wui THEN ,  Sanaz K. GARDNER ,  Benjamin CHU-KUNG ,  Marko RADOSAVLJEVIC ,  Seung Hoon SUNG ,  Robert S. CHAU

IPC分类号： H01L29/205 ,  H01L29/04 ,  H01L21/324 ,  H01L29/06 ,  H01L21/02 ,  H01L21/308

CPC分类号： H01L29/205 ,  H01L21/02381 ,  H01L21/0243 ,  H01L21/02433 ,  H01L21/02538 ,  H01L21/0254 ,  H01L21/02587 ,  H01L21/02609 ,  H01L21/02639 ,  H01L21/30608 ,  H01L21/308 ,  H01L21/324 ,  H01L21/76224 ,  H01L29/045 ,  H01L29/0649 ,  H01L29/0684

摘要： A fin over an insulating layer on a substrate having a first crystal orientation is modified to form a surface aligned along a second crystal orientation. A device layer is deposited over the surface of the fin aligned along the second crystal orientation.

摘要翻译： 在具有第一晶体取向的基板上的绝缘层上的鳍被修改以形成沿着第二晶体取向对准的表面。 器件层沉积在沿着第二晶体取向对准的鳍片的表面上。

公开(公告)号：US20150108496A1

公开(公告)日：2015-04-23

申请号：US14581722

申请日：2014-12-23

申请人： Intel Corporation

发明人： Han Wui THEN ,  Sansaptak DASGUPTA ,  Marko RADOSAVLJEVIC ,  Benjamin CHU-KUNG ,  Sanaz GARDNER ,  Seung Hoon SUNG ,  Robert S. Chau

IPC分类号： H01L27/12 ,  H01L29/201 ,  H01L29/06 ,  H01L21/285 ,  H01L29/66 ,  H01L21/84 ,  H01L21/02 ,  H01L29/20 ,  H01L29/778

CPC分类号： H01L29/2003 ,  H01L21/02164 ,  H01L21/02238 ,  H01L21/02255 ,  H01L21/0228 ,  H01L21/0254 ,  H01L21/283 ,  H01L21/28575 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/0649 ,  H01L29/201 ,  H01L29/42356 ,  H01L29/66462 ,  H01L29/66795 ,  H01L29/7787 ,  H01L29/78 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/802

摘要： A III-N semiconductor channel is formed on a III-N transition layer formed on a (111) or (110) surface of a silicon template structure, such as a fin sidewall. In embodiments, the silicon fin has a width comparable to the III-N epitaxial film thicknesses for a more compliant seeding layer, permitting lower defect density and/or reduced epitaxial film thickness. In embodiments, a transition layer is GaN and the semiconductor channel comprises Indium (In) to increase a conduction band offset from the silicon fin. In other embodiments, the fin is sacrificial and either removed or oxidized, or otherwise converted into a dielectric structure during transistor fabrication. In certain embodiments employing a sacrificial fin, the III-N transition layer and semiconductor channel is substantially pure GaN, permitting a breakdown voltage higher than would be sustainable in the presence of the silicon fin.

摘要翻译： III-N半导体沟道形成在形成于诸如翅片侧壁的硅模板结构的（111）或（110）表面上的III-N过渡层上。 在实施例中，硅鳍具有与更适应的种子层的III-N外延膜厚度相当的宽度，允许更低的缺陷密度和/或降低的外延膜厚度。 在实施例中，过渡层是GaN，并且半导体沟道包括铟（In）以增加从硅片的导带偏移。 在其它实施例中，鳍是牺牲性的，并且在晶体管制造期间被去除或氧化，或以其它方式转换为电介质结构。 在采用牺牲散热片的某些实施例中，III-N过渡层和半导体通道是基本上纯的GaN，允许击穿电压高于在硅片存在时可持续的击穿电压。

公开(公告)号：US20220037530A1

公开(公告)日：2022-02-03

申请号：US17497864

申请日：2021-10-08

申请人： Intel Corporation

发明人： Glenn A. GLASS ,  Anand S. MURTHY ,  Karthik JAMBUNATHAN ,  Cory C. BOMBERGER ,  Tahir GHANI ,  Jack T. KAVALIEROS ,  Benjamin CHU-KUNG ,  Seung Hoon SUNG ,  Siddharth CHOUKSEY

IPC分类号： H01L29/78 ,  H01L21/02 ,  H01L29/06 ,  H01L29/08 ,  H01L29/417 ,  H01L29/423 ,  H01L29/66 ,  H01L29/786 ,  H01L29/161 ,  H01L27/088

摘要： Integrated circuit transistor structures and processes are disclosed that reduce n-type dopant diffusion, such as phosphorous or arsenic, from the source region and the drain region of a germanium n-MOS device into adjacent channel regions during fabrication. The n-MOS transistor device may include at least 70% germanium (Ge) by atomic percentage. In an example embodiment, source and drain regions of the transistor are formed using a low temperature, non-selective deposition process of n-type doped material. In some embodiments, the low temperature deposition process is performed in the range of 450 to 600 degrees C. The resulting structure includes a layer of doped mono-crystyalline silicon (Si), or silicon germanium (SiGe), on the source/drain regions. The structure also includes a layer of doped amorphous Si:P (or SiGe:P) on the surfaces of a shallow trench isolation (STI) region and the surfaces of contact trench sidewalls.