公开(公告)号：US20230090092A1

公开(公告)日：2023-03-23

申请号：US17448382

申请日：2021-09-22

Applicant: Aaron D. Lilak ,  Orb Acton ,  Cheng-Ying Huang ,  Gilbert Dewey ,  Ehren Mannebach ,  Anh Phan ,  Willy Rachmady ,  Jack T. Kavalieros

Inventor： Aaron D. Lilak ,  Orb Acton ,  Cheng-Ying Huang ,  Gilbert Dewey ,  Ehren Mannebach ,  Anh Phan ,  Willy Rachmady ,  Jack T. Kavalieros

IPC: H01L27/12 ,  H01L21/84

Abstract: An integrated circuit having a transistor architecture includes a first semiconductor body and a second semiconductor body. The first and second semiconductor bodies are arranged vertically (e.g., stacked configuration) or horizontally (e.g., forksheet configuration) with respect to each other, and separated from one another by insulator material, and each can be configured for planar or non-planar transistor topology. A first gate structure is on the first semiconductor body, and includes a first gate electrode and a first high-k gate dielectric. A second gate structure is on the second semiconductor body, and includes a second gate electrode and a second high-k gate dielectric. In an example, the first gate electrode includes a layer comprising a compound of silicon and one or more metals; the second gate structure may include a silicide workfunction layer, or not. In one example, the first gate electrode is n-type, and the second gate electrode is p-type.

公开(公告)号：US20210057413A1

公开(公告)日：2021-02-25

申请号：US16954126

申请日：2018-03-28

Applicant: Gilbert DEWEY ,  Ravi PILLARISETTY ,  Jack T. KAVALIEROS ,  Aaron D. LILAK ,  Willy RACHMADY ,  Rishabh MEHANDRU ,  Kimin JUN ,  Anh PHAN ,  Hui Jae YOO ,  Patrick MORROW ,  Cheng-Ying HUANG ,  Matthew V. METZ ,  Intel Corporation

Inventor： Gilbert DEWEY ,  Ravi PILLARISETTY ,  Jack T. KAVALIEROS ,  Aaron D. LILAK ,  Willy RACHMADY ,  Rishabh MEHANDRU ,  Kimin JUN ,  Anh PHAN ,  Hui Jae YOO ,  Patrick MORROW ,  Cheng-Ying HUANG ,  Matthew V. METZ

IPC: H01L27/092 ,  H01L21/822 ,  H01L29/08 ,  H01L29/78 ,  H01L21/8238 ,  H01L27/06 ,  H01L29/66 ,  H01L29/06

Abstract: An integrated circuit structure comprises a lower device layer that includes a first structure comprising a plurality of PMOS transistors. An upper device layer is formed on the lower device layer, wherein the upper device layer includes a second structure comprising a plurality of NMOS transistors having a group III-V material source/drain region.

公开(公告)号：US20200098931A1

公开(公告)日：2020-03-26

申请号：US16142075

申请日：2018-09-26

Applicant: Abhishek SHARMA ,  Nazila HARATIPOUR ,  Seung Hoon SUNG ,  Benjamin CHU-KUNG ,  Gilbert DEWEY ,  Shriram SHIVARAMAN ,  Van H. LE ,  Jack T. KAVALIEROS ,  Tahir GHANI ,  Matthew V. METZ ,  Arnab SEN GUPTA

Inventor： Abhishek SHARMA ,  Nazila HARATIPOUR ,  Seung Hoon SUNG ,  Benjamin CHU-KUNG ,  Gilbert DEWEY ,  Shriram SHIVARAMAN ,  Van H. LE ,  Jack T. KAVALIEROS ,  Tahir GHANI ,  Matthew V. METZ ,  Arnab SEN GUPTA

IPC: H01L29/786 ,  H01L29/49 ,  H01L29/66 ,  H01L27/24 ,  H01L27/108

Abstract: Embodiments herein describe techniques for a thin-film transistor (TFT), which may include a substrate oriented in a horizontal direction and a transistor above the substrate. The transistor includes a gate electrode above the substrate, a gate dielectric layer around the gate electrode, and a channel layer around the gate dielectric layer, all oriented in a vertical direction substantially orthogonal to the horizontal direction. Furthermore, a first metal electrode located in a first metal layer is coupled to a first portion of the channel layer by a first short via, and a second metal electrode located in a second metal layer is coupled to a second portion of the channel layer by a second short via. Other embodiments may be described and/or claimed.

公开(公告)号：US20200006575A1

公开(公告)日：2020-01-02

申请号：US16024682

申请日：2018-06-29

Applicant: 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

Inventor： 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: H01L29/786 ,  H01L29/66

Abstract: 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：US20200006572A1

公开(公告)日：2020-01-02

申请号：US16022494

申请日：2018-06-28

Applicant: Abhishek A. SHARMA ,  Yih WANG ,  Van H. LE ,  Jack T. KAVALIEROS ,  Tahir GHANI ,  Nazila HARATIPOUR ,  Benjamin CHU-KUNG ,  Seung Hoon SUNG ,  Gilbert DEWEY ,  Shriram SHIVARAMAN ,  Matthew V. METZ

Inventor： Abhishek A. SHARMA ,  Yih WANG ,  Van H. LE ,  Jack T. KAVALIEROS ,  Tahir GHANI ,  Nazila HARATIPOUR ,  Benjamin CHU-KUNG ,  Seung Hoon SUNG ,  Gilbert DEWEY ,  Shriram SHIVARAMAN ,  Matthew V. METZ

IPC: H01L29/786 ,  H01L29/417 ,  H01L29/423 ,  H01L29/49 ,  H01L29/66

Abstract: Thin film transistors are described. An integrated circuit structure includes a first source or drain contact above a substrate. A gate stack pedestal is on the first source or drain contact, the gate stack pedestal including a first gate dielectric layer, a gate electrode layer on the first gate dielectric layer, a second gate dielectric layer on the gate electrode layer, and gate dielectric sidewalls along the first gate dielectric layer, the gate electrode layer and the second gate dielectric layer. A channel material layer is over and along sidewalls of the gate stack pedestal, the channel material layer further on a portion of the first source or drain contact. Dielectric spacers are adjacent portions of the channel material layer along the sidewalls of the gate stack pedestal. A second source or drain contact is over a portion of the channel material layer over the gate stack pedestal.

公开(公告)号：US09711591B2

公开(公告)日：2017-07-18

申请号：US13997607

申请日：2011-12-28

Applicant: Niloy Mukherjee ,  Matthew V. Metz ,  James M. Powers ,  Van H. Le ,  Benjamin Chu-Kung ,  Mark R. Lemay ,  Marko Radosavljevic ,  Niti Goel ,  Loren Chow ,  Peter G. Tolchinsky ,  Jack T. Kavalieros ,  Robert S. Chau

Inventor： Niloy Mukherjee ,  Matthew V. Metz ,  James M. Powers ,  Van H. Le ,  Benjamin Chu-Kung ,  Mark R. Lemay ,  Marko Radosavljevic ,  Niti Goel ,  Loren Chow ,  Peter G. Tolchinsky ,  Jack T. Kavalieros ,  Robert S. Chau

IPC: H01L21/02 ,  H01L29/06

CPC classification number: H01L29/06 ,  H01L21/0237 ,  H01L21/0245 ,  H01L21/02455 ,  H01L21/02494 ,  H01L21/02502 ,  H01L21/02505 ,  H01L21/0251 ,  H01L21/02513 ,  H01L21/02532 ,  H01L21/02538 ,  H01L21/02587 ,  H01L21/0259 ,  H01L21/02617 ,  H01L21/02636 ,  H01L21/02658 ,  H01L21/02664

Abstract: Methods of forming hetero-layers with reduced surface roughness and bulk defect density on non-native surfaces and the devices formed thereby are described. In one embodiment, the method includes providing a substrate having a top surface with a lattice constant and depositing a first layer on the top surface of the substrate. The first layer has a top surface with a lattice constant that is different from the first lattice constant of the top surface of the substrate. The first layer is annealed and polished to form a polished surface. A second layer is then deposited above the polished surface.

公开(公告)号：US09590089B2

公开(公告)日：2017-03-07

申请号：US13997162

申请日：2011-12-30

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

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

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US09224754B2

公开(公告)日：2015-12-29

申请号：US14273377

申请日：2014-05-08

Applicant: Titash Rakshit ,  Martin Giles ,  Ravi Pillarisetty ,  Jack T. Kavalieros

Inventor： Titash Rakshit ,  Martin Giles ,  Ravi Pillarisetty ,  Jack T. Kavalieros

IPC: H01L21/70 ,  H01L27/12 ,  H01L21/8238 ,  H01L29/66 ,  H01L29/78 ,  H01L21/8234

CPC classification number: H01L29/7845 ,  H01L21/8234 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/823828 ,  H01L21/823842 ,  H01L21/823878 ,  H01L21/845 ,  H01L27/0924 ,  H01L27/1211 ,  H01L29/0653 ,  H01L29/495 ,  H01L29/66795 ,  H01L29/7831 ,  H01L29/785

Abstract: Embodiments relate to an improved tri-gate device having gate metal fills, providing compressive or tensile stress upon at least a portion of the tri-gate transistor, thereby increasing the carrier mobility and operating frequency. Embodiments also contemplate method for use of the improved tri-gate device.

Abstract translation: 实施例涉及具有栅极金属填充物的改进的三栅极器件，在三栅极晶体管的至少一部分上提供压缩或拉伸应力，由此增加载流子迁移率和工作频率。 实施例还考虑了使用改进的三栅极器件的方法。

公开(公告)号：US20150060945A1

公开(公告)日：2015-03-05

申请号：US14535387

申请日：2014-11-07

Applicant: Anand S. Murthy ,  Glenn A. Glass ,  Tahir Ghani ,  Ravi Pillarisetty ,  Niloy Mukherjee ,  Jack T. Kavalieros ,  Roza Kotlyar ,  Willy Rachmady ,  Mark Y. Liu

Inventor： Anand S. Murthy ,  Glenn A. Glass ,  Tahir Ghani ,  Ravi Pillarisetty ,  Niloy Mukherjee ,  Jack T. Kavalieros ,  Roza Kotlyar ,  Willy Rachmady ,  Mark Y. Liu

IPC: H01L29/36 ,  H01L21/02 ,  H01L29/78 ,  H01L29/66 ,  H01L29/165 ,  H01L29/08

CPC classification number: H01L29/0676 ,  H01L21/02532 ,  H01L21/28512 ,  H01L21/28525 ,  H01L21/3215 ,  H01L21/76831 ,  H01L23/535 ,  H01L27/092 ,  H01L27/0924 ,  H01L29/0615 ,  H01L29/0847 ,  H01L29/086 ,  H01L29/165 ,  H01L29/167 ,  H01L29/36 ,  H01L29/41791 ,  H01L29/42392 ,  H01L29/45 ,  H01L29/456 ,  H01L29/4966 ,  H01L29/66477 ,  H01L29/66545 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/66681 ,  H01L29/66931 ,  H01L29/7785 ,  H01L29/78 ,  H01L29/7816 ,  H01L29/7833 ,  H01L29/7848 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming transistor devices having source and drain regions with high concentrations of boron doped germanium. In some embodiments, an in situ boron doped germanium, or alternatively, boron doped silicon germanium capped with a heavily boron doped germanium layer, are provided using selective epitaxial deposition in the source and drain regions and their corresponding tip regions. In some such cases, germanium concentration can be, for example, in excess of 50 atomic % and up to 100 atomic %, and the boron concentration can be, for instance, in excess of 1E20 cm−3. A buffer providing graded germanium and/or boron concentrations can be used to better interface disparate layers. The concentration of boron doped in the germanium at the epi-metal interface effectively lowers parasitic resistance without degrading tip abruptness. The techniques can be embodied, for instance, in planar or non-planar transistor devices.

Abstract translation: 公开了用于形成具有高掺杂硼掺杂锗的源区和漏区的晶体管器件的技术。 在一些实施例中，使用在源极和漏极区域及其对应的尖端区域中的选择性外延沉积来提供原位硼掺杂锗或者掺杂有硼掺杂锗层的硼掺杂硅锗。 在一些这样的情况下，锗浓度可以例如超过50原子％且高达100原子％，并且硼浓度可以例如超过1E20cm-3。 可以使用提供梯度锗和/或硼浓度的缓冲液来更好地接合不同的层。 锗在外延金属界面掺杂的硼的浓度有效地降低了寄生电阻而不降低尖端突然性。 这些技术可以例如在平面或非平面晶体管器件中实现。

公开(公告)号：US20140326953A1

公开(公告)日：2014-11-06

申请号：US14334636

申请日：2014-07-17

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

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

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。