Patents by Inventor Chen Fan

Chen Fan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230143705
    Abstract: A method is presented for constructing a semiconductor device. The method includes forming a plurality of fins over a nanosheet stack and a substrate, forming spacers between the nanosheet stack and one or more of the plurality of fins, each spacer defining a different shape, forming gate spacers adjacent the plurality of fins, the gate spacers directly contacting the one or more of the plurality of fins having a spacer, forming a barrier spacer between a set of fins of the plurality of fins, the barrier spacer directly contacting a top surface of a shallow trench isolation (STI) region, forming n-type epitaxial regions between the plurality of fins, forming p-type epitaxy regions over the n-type epitaxial regions, and forming a first contact extending vertically through the semiconductor device adjacent the barrier spacer and extending laterally away from the barrier spacer to directly contact a sidewall of an n-type epitaxial region.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 11, 2023
    Inventors: Indira Seshadri, Stuart Sieg, Su Chen Fan
  • Publication number: 20230145135
    Abstract: Techniques for area scaling of contacts in VTFET devices are provided. In one aspect, a VTFET device includes: a fin(s); a bottom source/drain region at a base of the fin(s); a gate stack alongside the fin(s); a top source/drain region present at a top of the fin(s); a bottom source/drain contact to the bottom source/drain region; and a gate contact to the gate stack, wherein the bottom source drain and gate contacts each includes a top portion having a width W1CONTACT over a bottom portion having a width W2CONTACT, wherein W2CONTACT<W1CONTACT, and wherein a sidewall along the top portion is discontinuous with a sidewall along the bottom portion. The bottom portion having the width W2CONTACT is present alongside the gate stack and the top source/drain region. A method of forming a VTFET device is also provided.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 11, 2023
    Inventors: Yann Mignot, Su Chen Fan, Jing Guo, Lijuan Zou
  • Patent number: 11646358
    Abstract: A method is presented for forming a self-aligned middle-of-the-line (MOL) contact. The method includes forming a fin structure over a substrate, depositing and etching a first set of dielectric layers over the fin structure, etching the fin structure to form a sacrificial fin and a plurality of active fins, depositing a work function metal layer over the plurality of active fins, depositing an inter-layer dielectric (ILD) and a second set of dielectric layers. The method further includes etching the second set of dielectric layers and the ILD to form a first, via portion and to expose a top surface of the sacrificial fin, removing the sacrificial fin to form a second via portion, and filling the first and second via portions with a conductive material to form the MOL contact in the first via portion and a contact landing in the second via portion.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: May 9, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yann Mignot, Indira Seshadri, Su Chen Fan, Christopher J. Waskiewicz, Eric Miller
  • Publication number: 20230139199
    Abstract: A controller having a wireless transmission interface is provided. The controller includes an amplifier, an analog-to-digital converter, a digital filter, a processor, and a radio frequency signal transceiver. The amplifier is coupled to the wireless transmission interface, and generates an amplification signal according to an input signal. The analog-to-digital converter is coupled to the amplifier, and configured to convert the amplification signal into a digital format. The digital filter is coupled to the analog-to-digital converter, and configured to filter the amplification signal in the digital format to generate a filtered signal. The processor is coupled to the digital filter, and configured to perform a calculation on the filtered signal to generate a calculation result. The radio frequency signal transceiver is coupled to the processor, and obtains received information according to the calculation result and the filtered signal.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 4, 2023
    Applicant: AIXlink Ltd.
    Inventors: Chih-Cheng Lin, Chen-Fan Tang, Sheng-Yuan Jan
  • Publication number: 20230130305
    Abstract: A stacked device is provided. The stacked device includes a reduced height active device layer, and a plurality of lower source/drain regions in the reduced height active device layer. The stacked device further includes a lower interlayer dielectric (ILD) layer on the plurality of lower source/drain regions, and a conductive trench spacer in the lower interlayer dielectric (ILD) layer, wherein the conductive trench spacer is adjacent to one of the plurality of lower source/drain regions. The stacked device further includes a top active device layer adjacent to the lower interlayer dielectric (ILD) layer, and an upper source/drain section in the top active device layer. The stacked device further includes a shared contact in electrical connection with the upper source/drain section, the conductive trench spacer, and the one of the plurality of lower source/drain regions.
    Type: Application
    Filed: October 21, 2021
    Publication date: April 27, 2023
    Inventors: Ruilong Xie, Julien Frougier, Su Chen Fan, Ravikumar Ramachandran, Nicolas Loubet
  • Publication number: 20230124681
    Abstract: A CMOS (complementary metal-oxide semiconductor) device includes an n-channel metal-oxide semiconductor (NMOS) device, a p-channel metal-oxide semiconductor (PMOS) device, the NMOS and the PMOS device surrounded by a first dielectric material, the NMOS device separated from the PMOS device by a second dielectric material, a first NMOS gate separated from a first PMOS gate by the second dielectric material, a second NMOS gate electrically connected to a second PMOS gate by a metal link disposed between the NMOS gate and the PMOS gate, the metal link disposed above the second dielectric material, a first source/drain (S/D) contact disposed above the second dielectric material, the first S/D contact disposed in contact with both NMOS S/D region and a PMOS S/D region, and a second S/D contact disposed adjacent to the second dielectric material, the second S/D contact disposed in contact with a single S/D region.
    Type: Application
    Filed: October 19, 2021
    Publication date: April 20, 2023
    Inventors: Ruilong Xie, Su Chen Fan, Veeraraghavan S. Basker, Julien Frougier, Nicolas Loubet
  • Patent number: 11621199
    Abstract: A method for manufacturing a semiconductor device includes forming a first vertical transistor structure in a first device region on a substrate, and forming a second vertical transistor structure in a second device region on the substrate. The first vertical transistor structure includes a first plurality of fins, and the second vertical transistor structure includes a second plurality of fins. A plurality of first source/drain regions are grown from upper portions of the first plurality of fins, and a contact liner layer is formed on the first source/drain regions. The method further includes forming a plurality of first silicide portions from the contact liner layer on the first source/drain regions, and forming a plurality of second silicide portions on a plurality of second source/drain regions extending from upper portions of the second plurality of fins. The second silicide portions have a different composition than the first silicide portions.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: April 4, 2023
    Assignee: International Business Machines Corporation
    Inventors: Heng Wu, Su Chen Fan, Ruilong Xie, Huai Huang
  • Publication number: 20230100368
    Abstract: A device includes: a first dielectric material; a first metal line in the first dielectric material; a second dielectric material disposed on the first dielectric material and the first metal line; a second metal line in the second dielectric material; and a plurality of metal vias disposed on a same level and connecting the first metal line and the second metal line, wherein the plurality of metal vias comprise a first top via and a bottom via having different sidewall profile angles.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventors: Hsueh-Chung Chen, Yann Mignot, Su Chen Fan, Mary Claire Silvestre, Chi-Chun LIU, Junli Wang
  • Publication number: 20230095956
    Abstract: Embodiments disclosed herein describe methods of forming semiconductor devices. The methods may include etching vias and trenches in a middle-of-line (MOL) layer that has a low-k dielectric layer, a sacrificial nitride layer, and a hard mask layer. The methods may also include depositing a thin nitride layer within the via trench, depositing a carbon layer on the thin nitride layer within the vias and trenches, etching back the thin nitride layer to expose a portion of the hard mask layer, removing the hard mask layer and the carbon layer, and removing the thin nitride layer and the sacrificial nitride layer.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Chanro Park, Yann Mignot, Daniel J. Vincent, Su Chen Fan, Christopher J. Waskiewicz, Hsueh-Chung Chen
  • Patent number: 11615990
    Abstract: A method includes forming a p-type field effect transistor region and an n-type field effect transistor region into a semiconductor substrate. The method implements a process flow to fabricate highly doped top source/drains with minimal lithography and etching processes. The method permits the formation of VFETs with increased functionality and reduced scaling.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: March 28, 2023
    Assignee: International Business Machines Corporation
    Inventors: Heng Wu, Ruilong Xie, Su Chen Fan, Jay William Strane, Hemanth Jagannathan
  • Publication number: 20230086681
    Abstract: A semiconductor device includes first and second vertical transport field-effect transistor (VTFET) devices. Each of the first and second VTFET devices includes a bottom epitaxial layer, a plurality of channel fins formed on the bottom epitaxial layer, a first interlayer dielectric (ILD) layer formed between the channel fins, a high-? metal gate formed between the channel fins and the first ILD layer, a top epitaxial layer formed discretely on each of the channel fins, and a trench epitaxial layer formed continuously across the top epitaxial layer, a portion of the first ILD layer also being formed between the first and second VTFET device. The semiconductor device also includes a second ILD layer formed on the portion of the first ILD layer that is between the first and second VTFET devices, the second ILD layer separating the top epitaxial layers of the first and second VTFET devices.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: RUILONG XIE, CHRISTOPHER J WASKIEWICZ, ALEXANDER REZNICEK, SU CHEN FAN, HENG WU
  • Patent number: 11605717
    Abstract: A semiconductor structure and a method of making the same includes a first recessed region in a semiconductor structure, the first recessed region defining a first opening with a first positive tapering profile, as at least part of the first positive tapering profile, widening the first opening in a direction towards a top source/drain region of the semiconductor structure at a first tapering angle, and a top source/drain contact within the first opening, the top source/drain contact surrounding a surface of the top source/drain region. The semiconductor structure further includes a protective liner located at an interface between a bottom portion of the top source/drain region, a top spacer adjacent to the top source/drain region and a dielectric material between two consecutive top source/drain regions, the protective liner protects the top source/drain regions during contact patterning.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 14, 2023
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Eric Miller, Jeffrey C. Shearer, Su Chen Fan, Heng Wu
  • Publication number: 20230064608
    Abstract: A semiconductor device containing a self-aligned contact rail is provided. The self-aligned contact rail can have a reduced critical dimension, CD. The self-aligned contact rail can be obtained utilizing a sacrificial semiconductor fin as a placeholder structure for the contact rail. The used of the sacrificial semiconductor fin enables reduced, and more controllable, CDs.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 2, 2023
    Inventors: Yann Mignot, Christopher J. Waskiewicz, Su Chen Fan, Brent Anderson, Junli Wang
  • Publication number: 20230026989
    Abstract: Methods are presented for forming multi-threshold field effect transistors. The methods generally include depositing and patterning an organic planarizing layer to protect underlying structures formed in a selected one of the nFET region and the pFET region of a semiconductor wafer. In the other one of the nFET region and the pFET region, structures are processed to form an undercut in the organic planarizing layer. The organic planarizing layer is subjected to a reflow process to fill the undercut. The methods are effective to protect a boundary between the nFET region and the pFET region.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 26, 2023
    Inventors: Jing Guo, Ekmini Anuja De Silva, Indira Seshadri, Jingyun Zhang, Su Chen Fan
  • Publication number: 20220406776
    Abstract: A semiconductor device comprising at least one first gate all around channel having a horizontal physical orientation, wherein the at least one first gate all around channel is comprised of a first material, wherein the at least one first gate all around channel has a sidewall surface with (100) crystal orientation. At least one second gate all around channel having a vertical physical orientation, wherein the second channel is located above the at least one first gate all around channel, wherein the at least one second gate all around channel is comprised of a second material, wherein the at least one second gate all around channel has a sidewall surface with (110) crystal orientation. A gate metal enclosing the at least one first gate all around channel and the at least one second gate all around channel.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 22, 2022
    Inventors: Ruilong Xie, Eric Miller, Dechao Guo, Jeffrey C. Shearer, Su Chen Fan, Julien Frougier, Veeraraghavan S. Basker, Junli Wang, Sung Dae Suk
  • Patent number: 11521153
    Abstract: The present disclosure relates to a distribution station for serving an unmanned logistics distribution vehicle and distribution method.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 6, 2022
    Assignee: BEIJING JINGDONG QIANSHI TECHNOLOGY CO., LTD.
    Inventors: Luyi Han, Jun Xiao, Jinhua Cai, Yanguang Liu, Chen Fan
  • Patent number: 11500362
    Abstract: A shelf, a dispatching method, a dispatching device, and an operation dispatching system relating to the field of intelligent warehousing technology, the shelf including: a storage device for placing an article; a motion device for moving the shelf; a power device for providing energy to the motion device; a communication device configured to communicate with a control center; and a controller that controls communication of the communication device with the control center and controls motion of the motion device.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: November 15, 2022
    Assignee: BEIJING JINGDONG ZHENSHI INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Weiwei Gu, Jun Xiao, Jinhua Cai, Yanguang Liu, Chen Fan
  • Patent number: 11489111
    Abstract: A memory device includes two phase change memory (PCM) cells and a bridge. The first PCM cell includes an electrical input and a phase change material. The second PCM cell includes an electrical input that is independent from the electrical input of the first PCM cell and another phase change material. The bridge is electrically connected to the two PCM cells.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: November 1, 2022
    Assignee: International Business Machines Corporation
    Inventors: Hsueh-Chung Chen, Junli Wang, Su Chen Fan
  • Publication number: 20220310908
    Abstract: A memory device includes two phase change memory (PCM) cells and a bridge. The first PCM cell includes an electrical input and a phase change material. The second PCM cell includes an electrical input that is independent from the electrical input of the first PCM cell and another phase change material. The bridge is electrically connected to the two PCM cells.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 29, 2022
    Inventors: Hsueh-Chung Chen, Junli Wang, Su Chen Fan
  • Publication number: 20220262923
    Abstract: A method is presented for forming a self-aligned middle-of-the-line (MOL) contact. The method includes forming a fin structure over a substrate, depositing and etching a first set of dielectric layers over the fin structure, etching the fin structure to form a sacrificial fin and a plurality of active fins, depositing a work function metal layer over the plurality of active fins, depositing an inter-layer dielectric (ILD) and a second set of dielectric layers. The method further includes etching the second set of dielectric layers and the ILD to form a first, via portion and to expose a top surface of the sacrificial fin, removing the sacrificial fin to form a second via portion, and filling the first and second via portions with a conductive material to form the MOL contact in the first via portion and a contact landing in the second via portion.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 18, 2022
    Inventors: Yann Mignot, Indira Seshadri, Su Chen Fan, Christopher J. Waskiewicz, Eric Miller, Jr.