Patents by Inventor Xiangdong Chen

Xiangdong Chen 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: 20170317167
    Abstract: Semiconductor integrated circuits (ICs) employing localized low dielectric constant (low-K) material in inter-layer dielectric (ILD) material for improved speed performance are disclosed. To speed up performance of selected circuits in an IC that would otherwise lower overall speed performance of the IC, low-K dielectric material is employed during IC fabrication. The low-K dielectric material is provided in selected, localized areas of ILD material in which selected circuits are disposed. In this manner, the IC will experience an overall increased speed performance during operation, because circuit components and/or circuit element interconnects of selected circuit(s) that are disposed in the low-K ILD material will experience reduced signal delay.
    Type: Application
    Filed: July 14, 2017
    Publication date: November 2, 2017
    Inventors: Haining Yang, Xiangdong Chen
  • Publication number: 20170287933
    Abstract: A standard cell IC includes pMOS transistors in a pMOS region of a MOS device. The pMOS region extends between a first cell edge and a second cell edge opposite the first cell edge. The standard cell IC further includes nMOS transistors in an nMOS region of the MOS device. The nMOS region extends between the first cell edge and the second cell edge. The standard cell IC further includes at least one single diffusion break located in an interior region between the first cell edge and the second cell edge that extends across the pMOS region and the nMOS region to separate the pMOS region into pMOS subregions and the nMOS region into nMOS subregions. The standard cell IC includes a first double diffusion break portion at the first cell edge. The standard cell IC further includes a second double diffusion break portion at the second cell edge.
    Type: Application
    Filed: September 13, 2016
    Publication date: October 5, 2017
    Inventors: Xiangdong CHEN, Venugopal BOYNAPALLI, Satyanarayana SAHU, Hyeokjin LIM, Mukul GUPTA
  • Patent number: 9773866
    Abstract: Semiconductor integrated circuits (ICs) employing localized low dielectric constant (low-K) material in inter-layer dielectric (ILD) material for improved speed performance are disclosed. To speed up performance of selected circuits in an IC that would otherwise lower overall speed performance of the IC, low-K dielectric material is employed during IC fabrication. The low-K dielectric material is provided in selected, localized areas of ILD material in which selected circuits are disposed. In this manner, the IC will experience an overall increased speed performance during operation, because circuit components and/or circuit element interconnects of selected circuit(s) that are disposed in the low-K ILD material will experience reduced signal delay.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: September 26, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Haining Yang, Xiangdong Chen
  • Publication number: 20170257080
    Abstract: In one example, the apparatus includes a first AND gate, a second AND gate, a first NOR gate, a second NOR gate, a third NOR gate, a first inverter, and a second inverter. The first AND gate output is coupled to the first NOR gate first input. The first NOR gate output is coupled to the second NOR gate first input. The second NOR gate output is coupled to the first NOR gate second input. The first inverter output is coupled to the first AND gate second input and the second NOR gate second input. The second AND gate first input is coupled to the first inverter output. The third NOR gate first input is coupled to the second NOR gate output. The third NOR gate second input is coupled to the second AND gate output. The second inverter output is coupled to the second AND gate second input.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 7, 2017
    Inventors: Seid Hadi RASOULI, Xiangdong CHEN, Venugopal BOYNAPALLI
  • Patent number: 9755618
    Abstract: In one example, the apparatus includes a first AND gate, a second AND gate, a first NOR gate, a second NOR gate, a third NOR gate, a first inverter, and a second inverter. The first AND gate output is coupled to the first NOR gate first input. The first NOR gate output is coupled to the second NOR gate first input. The second NOR gate output is coupled to the first NOR gate second input. The first inverter output is coupled to the first AND gate second input and the second NOR gate second input. The second AND gate first input is coupled to the first inverter output. The third NOR gate first input is coupled to the second NOR gate output. The third NOR gate second input is coupled to the second AND gate output. The second inverter output is coupled to the second AND gate second input.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 5, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Seid Hadi Rasouli, Xiangdong Chen, Venugopal Boynapalli
  • Publication number: 20170186848
    Abstract: Semiconductor devices with wider field gates for reduced gate resistance are disclosed. In one aspect, a semiconductor device is provided that employs a gate. The gate is a conductive line disposed above the semiconductor device to form transistors corresponding to active semiconductor regions. Each active semiconductor region has a corresponding channel region. Portions of the gate disposed over each channel region are active gates, and portions not disposed over the channel region, but that are disposed over field oxide regions, are field gates. A voltage differential between each active gate and a source of each corresponding transistor causes current flow in a channel region when the voltage differential exceeds a threshold voltage. The width of each field gate is a larger width than each active gate. The larger width of the field gates results in reduced gate resistance compared to devices with narrower field gates.
    Type: Application
    Filed: June 22, 2016
    Publication date: June 29, 2017
    Inventors: Haining Yang, Xiangdong Chen
  • Patent number: 9640480
    Abstract: A MOS device includes first, second, third, and fourth interconnects. The first interconnect extends on a first track in a first direction. The first interconnect is configured in a metal layer. The second interconnect extends on the first track in the first direction. The second interconnect is configured in the metal layer. The third interconnect extends on a second track in the first direction. The third interconnect is configured in the metal layer. The second track is parallel to the first track. The third interconnect is coupled to the second interconnect. The second and third interconnects are configured to provide a first signal. The fourth interconnect extends on the second track in the first direction. The fourth interconnect is configured in the metal layer. The fourth interconnect is coupled to the first interconnect. The first and fourth interconnects are configured to provide a second signal different than the first signal.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 2, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Mukul Gupta, Xiangdong Chen, Ohsang Kwon
  • Patent number: 9640522
    Abstract: In an aspect of the disclosure, apparatuses for reducing the cost of using an ECO standard cell library in chip design are provided. Such an apparatus may be a MOS device including several regions. The MOS device may include a pMOS transistor and an nMOS transistor in a first region of the device. The pMOS transistor gate of the pMOS transistor and the nMOS transistor gate of the nMOS transistor may be formed by a gate interconnect extending in a first direction across the device. The MOS device may include several unutilized pMOS transistors and several unutilized nMOS transistors in a second region of the device adjacent to the first region. Fins of the pMOS transistors and the nMOS transistors in the first region may be disconnected from fins of the unutilized pMOS transistors and the unutilized nMOS transistors in the second region.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: May 2, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Satyanarayana Sahu, Vinod Gupta, Xiangdong Chen, Triveni Rachapalli
  • Patent number: 9634026
    Abstract: A standard cell IC may include a plurality of pMOS transistors each including a pMOS transistor drain, a pMOS transistor source, and a pMOS transistor gate. Each pMOS transistor drain and pMOS transistor source of the plurality of pMOS transistors may be coupled to a first voltage source. The standard cell IC may also include a plurality of nMOS transistors each including an nMOS transistor drain, an nMOS transistor source, and an nMOS transistor gate. Each nMOS transistor drain and nMOS transistor source of the plurality of nMOS transistors are coupled to a second voltage source lower than the first voltage source.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 25, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Satyanarayana Sahu, Xiangdong Chen, Ramaprasath Vilangudipitchai, Dorav Kumar
  • Patent number: 9577639
    Abstract: A MOS device includes a first MOS transistor having a first MOS transistor source, a first MOS transistor drain, and a first MOS transistor gate. The MOS device also includes a second MOS transistor having a second MOS transistor source, a second MOS transistor drain, and a second MOS transistor gate. The second MOS transistor source and the first MOS transistor source are coupled to a first voltage source. The MOS device includes a third MOS transistor having a third MOS transistor gate, the third MOS transistor gate between the first MOS transistor source and the third MOS transistor source, the third MOS transistor further having a third MOS transistor source and a third MOS transistor drain, the third MOS transistor source being coupled to the first MOS transistor source, the third MOS transistor drain being coupled to the second MOS transistor source, the third MOS transistor gate floating.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: February 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Satyanarayana Sahu, Xiangdong Chen, Venugopal Boynapalli, Hyeokjin Bruce Lim, Mukul Gupta, Hananel Kang, Chih-lung Kao, Radhika Guttal
  • Patent number: 9548251
    Abstract: A semiconductor package may include a substrate, and a semiconductor interposer having a cavity and a plurality of through semiconductor vias. The semiconductor interposer is situated over the substrate. An intra-interposer die is disposed within the cavity of the semiconductor interposer. A thermally conductive adhesive is disposed within the cavity and contacts the intra-interposer die. Additionally, a top die is situated over the semiconductor interposer. In one implementation, the semiconductor interposer is a silicon interposer. In another implementation, the semiconductor interposer is flip-chip mounted to the substrate such that the intra-interposer die disposed within the cavity faces the substrate. In yet another implementation, the cavity in the semiconductor interposer may extend from a top surface of the semiconductor interposer to a bottom surface of the semiconductor interposer and a thermal interface material may be disposed between the intra-interposer die and the substrate.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: January 17, 2017
    Assignee: Broadcom Corporation
    Inventors: Rezaur Rahman Khan, Sam Ziqun Zhao, Pieter Vorenkamp, Kevin Kunzhong Hu, Sampath K. V. Karikalan, Xiangdong Chen
  • Publication number: 20160370699
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus for assigning feature colors for a multiple patterning process are provided. The apparatus receives integrated circuit layout information including a set of features and an assigned color of a plurality of colors for each feature of a first subset of features of the set of features. In addition, the apparatus performs color decomposition on a second subset of features to assign colors to features in the second subset of features. The second subset of features includes features in the set of features that are not included in the first subset of features with an assigned color.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 22, 2016
    Inventors: Xiangdong CHEN, Hyeokjin Bruce LIM, Ohsang KWON, Mickael MALABRY, Jingwei ZHANG, Raymond George STEPHANY, Haining YANG, Kern RIM, Stanley Seungchul SONG, Mukul GUPTA, Foua VANG
  • Publication number: 20160372544
    Abstract: Semiconductor integrated circuits (ICs) employing localized low dielectric constant (low-K) material in inter-layer dielectric (ILD) material for improved speed performance are disclosed. To speed up performance of selected circuits in an IC that would otherwise lower overall speed performance of the IC, low-K dielectric material is employed during IC fabrication. The low-K dielectric material is provided in selected, localized areas of ILD material in which selected circuits are disposed. In this manner, the IC will experience an overall increased speed performance during operation, because circuit components and/or circuit element interconnects of selected circuit(s) that are disposed in the low-K ILD material will experience reduced signal delay.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 22, 2016
    Inventors: Haining Yang, Xiangdong Chen
  • Publication number: 20160351490
    Abstract: A MOS device includes first, second, third, and fourth interconnects. The first interconnect extends on a first track in a first direction. The first interconnect is configured in a metal layer. The second interconnect extends on the first track in the first direction. The second interconnect is configured in the metal layer. The third interconnect extends on a second track in the first direction. The third interconnect is configured in the metal layer. The second track is parallel to the first track. The third interconnect is coupled to the second interconnect. The second and third interconnects are configured to provide a first signal. The fourth interconnect extends on the second track in the first direction. The fourth interconnect is configured in the metal layer. The fourth interconnect is coupled to the first interconnect. The first and fourth interconnects are configured to provide a second signal different than the first signal.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Mukul GUPTA, Xiangdong CHEN, Ohsang KWON
  • Patent number: 9508589
    Abstract: Methods of fabricating middle of line (MOL) layers and devices including MOL layers. A method in accordance with an aspect of the present disclosure includes depositing a hard mask across active contacts to terminals of semiconductor devices of a semiconductor substrate. Such a method also includes patterning the hard mask to selectively expose some of the active contacts and selectively insulate some of the active contacts. The method also includes depositing a conductive material on the patterned hard mask and the exposed active contacts to couple the exposed active contacts to each other over an active area of the semiconductor devices.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 29, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Stanley Seungchul Song, Kern Rim, Zhongze Wang, Jeffrey Junhao Xu, Xiangdong Chen, Choh Fei Yeap
  • Publication number: 20160343661
    Abstract: A MOS device includes a first interconnect extending in a first direction, the first interconnect being configured in a metal layer. The MOS device further includes a second interconnect extending in the first direction parallel to the first interconnect, the second interconnect being configured in the metal layer. The MOS device further includes a gate interconnect extending in a second direction orthogonal to the first direction, the gate interconnect being situated in a first layer below the metal layer, wherein the gate interconnect is coupled to the first interconnect by a first via. The MOS device further includes a third interconnect extending in the second direction, the third interconnect being coupled to both the first and second interconnects, wherein the third interconnect is coupled to the first interconnect by a second via, and wherein the second via contacts the first via.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 24, 2016
    Inventors: Mukul GUPTA, Xiangdong CHEN, Ohsang KWON, Stanley Seungchul SONG, Kern RIM, John Jianhong ZHU
  • Patent number: 9431371
    Abstract: There are disclosed herein various implementations of semiconductor packages including a bridge interposer. One exemplary implementation includes a first active die having a first portion situated over the bridge interposer, and a second portion not situated over the bridge interposer. The semiconductor package also includes a second active die having a first portion situated over the bridge interposer, and a second portion not situated over the bridge interposer. The second portion of the first active die and the second portion of the second active die include solder balls mounted on a package substrate, and are configured to communicate electrical signals to the package substrate utilizing the solder balls and without utilizing through-semiconductor vias (TSVs).
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 30, 2016
    Assignee: Broadcom Corporation
    Inventors: Sampath K. Karikalan, Sam Ziqun Zhao, Kevin Kunzhong Hu, Rezaur Rahman Khan, Pieter Vorenkamp, Xiangdong Chen
  • Patent number: 9379058
    Abstract: A semiconductor device includes a gate and a first active contact adjacent to the gate. Such a device further includes a first stacked contact electrically coupled to the first active contact, including a first isolation layer on sidewalls electrically isolating the first stacked contact from the gate. The device also includes a first via electrically coupled to the gate and landing on the first stacked contact. The first via electrically couples the first stacked contact and the first active contact to the gate to ground the gate.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: June 28, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Stanley Seungchul Song, Zhongze Wang, Ohsang Kwon, Kern Rim, John Jianhong Zhu, Xiangdong Chen, Foua Vang, Raymond George Stephany, Choh Fei Yeap
  • Publication number: 20160155728
    Abstract: An exemplary implementation of the present disclosure includes a stacked package having a top die from a top reconstituted wafer situated over a bottom die from a bottom reconstituted wafer. The top die and the bottom die are insulated from one another by an insulation arrangement. The top die and the bottom die are also interconnected through the insulation arrangement. The insulation arrangement can include a top molding compound that flanks the top die and a bottom molding compound that flanks the bottom die. The top die and the bottom die can be interconnected through at least the, top molding compound. Furthermore, the top die and the bottom die can be interconnected through a conductive via that extends within the insulation arrangement.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Inventors: Sam Ziqun ZHAO, Rezaur Rahman KHAN, Pieter VORENKAMP, Sampath K.V. KARIKALAN, Kevin Kunzhong HU, Xiangdong CHEN
  • Patent number: 9331016
    Abstract: An SOC apparatus includes a plurality of gate interconnects with a minimum pitch g, a plurality of metal interconnects with a minimum pitch m, and a plurality of vias interconnecting the gate interconnects and the metal interconnects. The vias have a minimum pitch v. The values m, g, and v are such that g2+m2?v2 and an LCM of g and m is less than 20 g. The SOC apparatus may further include a second plurality of metal interconnects with a minimum pitch of m2, where m2>m and the LCM of g, m, and m2 is less than 20 g.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: May 3, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Xiangdong Chen, Ohsang Kwon, Esin Terzioglu, Hadi Bunnalim