公开(公告)号：US20230387315A1

公开(公告)日：2023-11-30

申请号：US18227233

申请日：2023-07-27

Applicant: Intel Corporation

Inventor： Abhishek A. SHARMA ,  Van H. LE ,  Jack T. KAVALIEROS ,  Tahir GHANI ,  Gilbert DEWEY

IPC: H01L29/786 ,  H01L29/423

CPC classification number: H01L29/78648 ,  H01L29/42384 ,  H01L29/78603 ,  H01L29/78672 ,  H01L29/7869 ,  H01L2029/42388

Abstract: Thin film transistors having double gates are described. In an example, an integrated circuit structure includes an insulator layer above a substrate. A first gate stack is on the insulator layer. A polycrystalline channel material layer is on the first gate stack. A second gate stack is on a first portion of the polycrystalline channel material layer, the second gate stack having a first side opposite a second side. A first conductive contact is adjacent the first side of the second gate stack, the first conductive contact on a second portion of the channel material layer. A second conductive contact is adjacent the second side of the second gate stack, the second conductive contact on a third portion of the channel material layer.

公开(公告)号：US20220238685A1

公开(公告)日：2022-07-28

申请号：US17724331

申请日：2022-04-19

Applicant: Intel Corporation

Inventor： Abhishek SHARMA ,  Cory WEBER ,  Van H. LE ,  Sean MA

IPC: H01L29/47 ,  H01L27/108 ,  H01L27/24 ,  H01L29/423 ,  H01L29/66 ,  H01L29/786

Abstract: Embodiments herein describe techniques for a thin-film transistor (TFT) above a substrate. The transistor includes a gate electrode above the substrate, and a channel layer above the substrate, separated from the gate electrode by a gate dielectric layer. The transistor further includes a contact electrode above the channel layer and in contact with a contact area of the channel layer. The contact area has a thickness determined based on a Schottky barrier height of a Schottky barrier formed at an interface between the contact electrode and the contact area, a doping concentration of the contact area, and a contact resistance at the interface between the contact electrode and the contact area. Other embodiments may be described and/or claimed.

公开(公告)号：US20220199839A1

公开(公告)日：2022-06-23

申请号：US17133599

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Arnab SEN GUPTA ,  Urusa ALAAN ,  Justin WEBER ,  Charles C. KUO ,  Yu-Jin CHEN ,  Kaan OGUZ ,  Matthew V. METZ ,  Abhishek A. SHARMA ,  Prashant MAJHI ,  Brian S. DOYLE ,  Van H. LE

IPC: H01L29/872 ,  H01L27/07 ,  H01L29/47 ,  H01L29/22

Abstract: Embodiments disclosed herein include semiconductor devices with Schottky diodes in a back end of line stack. In an embodiment, a semiconductor device comprises a semiconductor layer, where transistor devices are provided in the semiconductor layer, and a back end stack over the semiconductor layer. In an embodiment, a diode is in the back end stack. In an embodiment, the diode comprises a first electrode, a semiconductor region over the first electrode, and a second electrode over the semiconductor region. In an embodiment, a first interface between the first electrode and the semiconductor region is an ohmic contact, and a second interface between the semiconductor region and the second electrode is a Schottky contact.

公开(公告)号：US20220199807A1

公开(公告)日：2022-06-23

申请号：US17129867

申请日：2020-12-21

Applicant: Intel Corporation

Inventor： Noriyuki SATO ,  Sarah ATANASOV ,  Abhishek A. Sharma ,  Bernhard SELL ,  Chieh-Jen KU ,  Elliot N. TAN ,  Hui Jae YOO ,  Travis W. LAJOIE ,  Van H. LE ,  Pei-Hua WANG ,  Jason PECK ,  Tobias BROWN-HEFT

IPC: H01L29/66 ,  H01L27/092 ,  H01L21/8234

Abstract: Thin film transistors fabricated using a spacer as a fin are described. In an example, a method of forming a fin transistor structure includes patterning a plurality of backbone pillars on a semiconductor substrate. The method may then include conformally depositing a spacer layer over the plurality of backbone pillars and the semiconductor substrate. A spacer etch of the spacer layer is then performed to leave a sidewall of the spacer layer on a backbone pillar to form a fin of the fin transistor structure. Other embodiments may be described and claimed

公开(公告)号：US20210050455A1

公开(公告)日：2021-02-18

申请号：US17074251

申请日：2020-10-19

Applicant: Intel Corporation

Inventor： Van H. LE ,  Gilbert DEWEY ,  Rafael RIOS ,  Jack T. KAVALIEROS ,  Marko RADOSAVLJEVIC ,  Kent E. MILLARD ,  Marc C. FRENCH ,  Ashish AGRAWAL ,  Benjamin CHU-KUNG ,  Ryan E. ARCH

IPC: H01L29/786 ,  H01L29/423 ,  H01L29/06 ,  H01L29/66 ,  H01L21/02 ,  H01L29/24 ,  H01L29/40 ,  H01L29/49

Abstract: Embodiments of the invention include non-planar InGaZnO (IGZO) transistors and methods of forming such devices. In an embodiment, the IGZO transistor may include a substrate and source and drain regions formed over the substrate. According to an embodiment, an IGZO layer may be formed above the substrate and may be electrically coupled to the source region and the drain region. Further embodiments include a gate electrode that is separated from the IGZO layer by a gate dielectric. In an embodiment, the gate dielectric contacts more than one surface of the IGZO layer. In one embodiment, the IGZO transistor is a finfet transistor. In another embodiment the IGZO transistor is a nanowire or a nanoribbon transistor. Embodiments of the invention may also include a non-planar IGZO transistor that is formed in the back end of line stack (BEOL) of an integrated circuit chip.

公开(公告)号：US20200287053A1

公开(公告)日：2020-09-10

申请号：US16648974

申请日：2017-12-29

Applicant: Intel Corporation

Inventor： Van H. LE ,  Ashish AGRAWAL ,  Seung Hoon SUNG ,  Abhishek A. SHARMA ,  Ravi PILLARISETTY

IPC: H01L29/786 ,  C30B29/08 ,  H01L27/088 ,  C30B29/40

Abstract: Described herein are apparatuses, systems, and methods associated with metal-assisted transistors. A single crystal semiconductor material may be seeded from a metal. The single crystal semiconductor material may form a channel region, a source, region, and/or a drain region of the transistor. The metal may form the source contact or drain contact, and the source region, channel region, and drain region may be stacked vertically on the source contact or drain contact. Alternatively, a metal-assisted semiconductor growth process may be used to form a single crystal semiconductor material on a dielectric material adjacent to the metal. The portion of the semiconductor material on the dielectric material may be used to form the transistor. Other embodiments may be described and claimed.

公开(公告)号：US20200168634A1

公开(公告)日：2020-05-28

申请号：US16630368

申请日：2017-09-29

Applicant: Intel Corporation

Inventor： Abhishek A. SHARMA ,  Van H. LE ,  Seung Hoon SUNG ,  Ravi PILLARISETTY ,  Marko RADOSAVLJEVIC

IPC: H01L27/12 ,  H01L29/24 ,  H01L29/423 ,  H01L29/49 ,  H01L29/786 ,  H01L21/02 ,  H01L21/383 ,  H01L29/66 ,  G05F1/56 ,  G06F1/26

Abstract: Described herein are apparatuses, systems, and methods associated with a voltage regulator circuit that includes one or more thin-film transistors (TFTs). The TFTs may be formed in the back-end of an integrated circuit. Additionally, the TFTs may include one or more unique features, such as a channel layer treated with a gas or plasma, and/or a gate oxide layer that is thicker than in prior TFTs. The one or more TFTs of the voltage regulator circuit may improve the operation of the voltage regulator circuit and free up front-end substrate area for other devices. Other embodiments may be described and claimed.

公开(公告)号：US20200083354A1

公开(公告)日：2020-03-12

申请号：US16465763

申请日：2016-12-31

Applicant: Intel Corporation

Inventor： Seung Hoon SUNG ,  Dipanjan BASU ,  Ashish AGRAWAL ,  Van H. LE ,  Benjamin CHU-KUNG ,  Harold W. KENNEL ,  Glenn A. GLASS ,  Anand S. MURTHY ,  Jack T. KAVALIEROS ,  Tahir GHANI

IPC: H01L29/66 ,  H01L29/08 ,  H01L29/78

Abstract: An apparatus is provided which comprises: a semiconductor region on a substrate, a gate stack on the semiconductor region, a source region of doped semiconductor material on the substrate adjacent a first side of the semiconductor region, a cap region on the substrate adjacent a second side of the semiconductor region, wherein the cap region comprises semiconductor material of a higher band gap than the semiconductor region, and a drain region comprising doped semiconductor material on the cap region. Other embodiments are also disclosed and claimed.

公开(公告)号：US20200066515A1

公开(公告)日：2020-02-27

申请号：US16303125

申请日：2016-07-02

Applicant: Intel Corporation

Inventor： Van H. LE ,  Benjamin CHU-KUNG ,  Willy RACHMADY ,  Marc C. FRENCH ,  Seung Hoon SUNG ,  Jack T. KAVALIEROS ,  Matthew V. METZ ,  Ashish AGRAWAL

IPC: H01L21/02 ,  H01L29/10 ,  H01L29/66 ,  H01L29/78

Abstract: An apparatus including a transistor device including a channel including germanium disposed on a substrate; a buffer layer disposed on the substrate between the channel and the substrate, wherein the buffer layer includes silicon germanium; and a seed layer disposed on the substrate between the buffer layer and the substrate, wherein the seed layer includes germanium. A method including forming seed layer on a silicon substrate, wherein the seed layer includes germanium; forming a buffer layer on the seed layer, wherein the buffer layer includes silicon germanium; and forming a transistor device including a channel on the buffer layer.

公开(公告)号：US20200006573A1

公开(公告)日：2020-01-02

申请号：US16022480

申请日：2018-06-28

Applicant: Intel Corporation

Inventor： Aaron LILAK ,  Van H. LE ,  Abhishek A. SHARMA ,  Tahir GHANI ,  Rishabh MEHANDRU ,  Gilbert DEWEY ,  Willy RACHMADY

IPC: H01L29/786 ,  H01L29/423

Abstract: Double gated thin film transistors are described. In an example, an integrated circuit structure includes an insulator layer above a substrate. A first gate electrode is on the insulator layer, the first gate electrode having a non-planar feature. A first gate dielectric is on and conformal with the non-planar feature of the first gate electrode. A channel material layer is on and conformal with the first gate dielectric. A second gate dielectric is on and conformal with the channel material layer. A second gate electrode is on and conformal with the second gate dielectric. A first source or drain region is coupled to the channel material layer at a first side of the first gate dielectric. A second source or drain region is coupled to the channel material layer at a second side of the first gate dielectric.