Patents by Inventor Jeffrey Junhao Xu

Jeffrey Junhao Xu 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).

  • Patent number: 9653399
    Abstract: An electronic device includes a middle-of-line (MOL) stack. The electronic device includes a top local interconnect layer and a contact coupling the top local interconnect layer to a gate of a semiconductor device through a first dielectric layer. The electronic device also includes one or more isolation walls between the contact and the first dielectric layer, wherein the one or more isolation walls include aluminum nitride (AlN).
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: May 16, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: John Jianhong Zhu, Da Yang, Jeffrey Junhao Xu, Stanley Seungchul Song, Kern Rim
  • Publication number: 20170110374
    Abstract: Nanowire channel structures of continuously stacked nanowires for complementary metal oxide semiconductor (CMOS) devices are disclosed. In one aspect, an exemplary CMOS device includes a nanowire channel structure that includes a plurality of continuously stacked nanowires. Vertically adjacent nanowires are connected at narrow top and bottom end portions of each nanowire. Thus, the nanowire channel structure comprises a plurality of narrow portions that are narrower than a corresponding plurality of central portions. A wrap-around gate material is disposed around the nanowire channel structure, including the plurality of narrow portions, without entirely wrapping around any nanowire therein. The exemplary CMOS device provides, for example, a larger effective channel width and better gate control than a conventional fin field-effect transistor (FET) (FinFET) of a similar footprint. The exemplary CMOS device further provides, for example, a shorter nanowire channel structure than a conventional nanowire FET.
    Type: Application
    Filed: June 30, 2016
    Publication date: April 20, 2017
    Inventors: Jeffrey Junhao Xu, Stanley Seungchul Song, Da Yang, Vladimir Machkaoutsan, Mustafa Badaroglu, Choh Fei Yeap
  • Publication number: 20170110541
    Abstract: Aspects disclosed in the detailed description include nanowire channel structures of continuously stacked heterogeneous nanowires for complementary metal oxide semiconductor (CMOS) devices. Each of the nanowires has a top end portion and a bottom end portion that are narrower than a central portion. Furthermore, vertically adjacent nanowires are interconnected at the narrower top end portions and bottom end portions. This allows for connectivity between stacked nanowires and for having separation areas between vertically adjacent heterogeneous nanowires. Having the separation areas allows for gate material to be disposed over a large area of the heterogeneous nanowires and, therefore, provides strong gate control, a shorter nanowire channel structure, low parallel plate parasitic capacitance, and low parasitic channel capacitance. Having the nanowires be heterogeneous, i.e.
    Type: Application
    Filed: June 30, 2016
    Publication date: April 20, 2017
    Inventors: Jeffrey Junhao Xu, Stanley Seungchul Song, Da Yang, Vladimir Machkaoutsan, Mustafa Badaroglu, Choh Fei Yeap
  • Publication number: 20170104088
    Abstract: A portion of a bulk silicon (Si) is formed into a fin, having a fin base and, on the fin base, an in-process fin. The fin base is doped Si and the in-process fin is silicon germanium (SiGe). The in-process SiGe fin has a source region and a drain region. Boron is in-situ doped into the drain region and into the source region. Optionally, boron is in-situ doped by forming an epi-layer, having boron, on the drain region and on the source region, and drive-in annealing to diffuse boron in the source region and the drain region.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Inventors: Vladimir MACHKAOUTSAN, Jeffrey Junhao XU, Stanley Seungchul SONG, Mustafa BADAROGLU, Choh Fei YEAP
  • Patent number: 9620454
    Abstract: Middle-of-line (MOL) manufactured integrated circuits (ICs) employing local interconnects of metal lines using an elongated via are disclosed. Related methods are also disclosed. In particular, different metal lines in a metal layer may need to be electrically interconnected during a MOL process for an IC. In this regard, to allow for metal lines to be interconnected without providing such interconnections above the metal lines that may be difficult to provide in a printing process for example, in an exemplary aspect, an elongated or expanded via(s) is provided in a MOL layer in an IC. The elongated via is provided in the MOL layer below the metal layer in the MOL layer and extended across two or more adjacent metal layers in the metal layer of the MOL layer. Moving the interconnections above the MOL layer can simplify the manufacturing of ICs, particularly at low nanometer (nm) node sizes.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: April 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: John Jianhong Zhu, Kern Rim, Stanley Seungchul Song, Jeffrey Junhao Xu, Da Yang
  • Patent number: 9620612
    Abstract: An integrated circuit device includes a first transistor structure formed in a memory region (e.g., an embedded memory region) of a die. The first transistor structure includes a substrate (e.g., a planar substrate of a planar FET or a fin of a FinFET) and a first gate. The first gate includes a dipole layer proximate to the substrate and a barrier layer proximate to the dipole layer. The integrated circuit device further includes a second transistor structure formed in a logic device region of the die. The second transistor structure includes a second gate that includes an interface layer, a dielectric layer, and a cap layer. The dielectric layer is formed between the cap layer and the interface layer.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: April 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Jeffrey Junhao Xu, Xia Li
  • Publication number: 20170092587
    Abstract: An integrated circuit device includes a first metal layer including aluminum. The integrated circuit device includes a second metal layer including an interconnect structure. The interconnect structure includes a layer of first material including aluminum. The integrated circuit device includes an inter-diffusion layer that includes aluminum. The inter-diffusion layer is proximate to the first metal layer and proximate to the layer of first material including aluminum. The integrated circuit device includes an aluminum oxide barrier layer. The aluminum oxide barrier layer is proximate to a dielectric layer and proximate to the layer of first material including aluminum.
    Type: Application
    Filed: December 14, 2016
    Publication date: March 30, 2017
    Inventors: Jeffrey Junhao Xu, Junjing Bao, John Jianhong Zhu, Stanley Seungchul Song, Niladri Narayan Mojumder, Choh Fei Yeap
  • Publication number: 20170077090
    Abstract: A multi-cell transistor includes gate body elements, gate tip elements extending from the gate body elements, and gate extensions extending from the gate tip elements. A patterned metal layer is provided between adjacent gate elements and at least portions of adjacent gate tip elements. Spacers are provided on the sides of each gate body element and each gate tip element to prevent the patterned metal layer from creating a short circuit between adjacent gate tip elements.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 16, 2017
    Inventors: Stanley Seungchul SONG, Kern RIM, Jeffrey Junhao XU, John Jianhong ZHU, Jun CHEN, Da YANG, Choh Fei YEAP
  • Patent number: 9576801
    Abstract: Non-volatile memory devices and logic devices are fabricated using processes compatible with high dielectric constant/metal gate (HK/MG) processes for increased cell density and larger scale integration. A doped oxide layer, such as a silicon-doped hafnium oxide (HfO2) layer, is implemented as a ferroelectric dipole layer in a nonvolatile memory device.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: February 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Xia Li, Jeffrey Junhao Xu, Zhongze Wang, Bin Yang, Xiaonan Chen, Yu Lu
  • Patent number: 9564518
    Abstract: A portion of a bulk silicon (Si) is formed into a fin, having a fin base and, on the fin base, an in-process fin. The fin base is doped Si and the in-process fin is silicon germanium (SiGe). The in-process SiGe fin has a source region and a drain region. Boron is in-situ doped into the drain region and into the source region. Optionally, boron is in-situ doped by forming an epi-layer, having boron, on the drain region and on the source region, and drive-in annealing to diffuse boron in the source region and the drain region.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Vladimir Machkaoutsan, Jeffrey Junhao Xu, Stanley Seungchul Song, Mustafa Badaroglu, Choh Fei Yeap
  • Publication number: 20170033020
    Abstract: An integrated circuit (IC) device may include a first active transistor of a first-type in a first-type region. The first active transistor may have a first-type work function material and a low channel dopant concentration in an active portion of the first active transistor. The IC device may also include a first isolation transistor of the first-type in the first-type region. The second active transistor may have a second-type work function material and the low channel dopant concentration in an active portion of the first isolation transistor. The first isolation transistor may be arranged adjacent to the first active transistor.
    Type: Application
    Filed: October 13, 2016
    Publication date: February 2, 2017
    Inventors: Vladimir MACHKAOUTSAN, Mustafa BADAROGLU, Jeffrey Junhao XU, Stanley Seungchul SONG, Choh Fei YEAP
  • Patent number: 9543248
    Abstract: An integrated circuit device includes a first metal layer including aluminum. The integrated circuit device includes a second metal layer including an interconnect structure. The interconnect structure includes a layer of first material including aluminum. The integrated circuit device includes an inter-diffusion layer that includes aluminum. The inter-diffusion layer is proximate to the first metal layer and proximate to the layer of first material including aluminum. The integrated circuit device includes a self-forming barrier layer that includes aluminum. The self-forming barrier layer is proximate to a dielectric layer and proximate to the layer of first material including aluminum.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 10, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Jeffrey Junhao Xu, Junjing Bao, John Jianhong Zhu, Stanley Seungchul Song, Niladri Narayan Mojumder, Choh Fei Yeap
  • Patent number: 9536973
    Abstract: A method includes depositing a first metal layer on a native SiO2 layer that is disposed on at least one of a source and a drain of a metal-oxide-semiconductor field-effect transistor (MOSFET). A metal oxide layer is formed from the native SiO2 layer and the first metal layer, wherein the remaining first metal layer, the metal oxide layer, and the at least one of the source and the drain form a metal-insulator-semiconductor (MIS) contact.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: January 3, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Jeffrey Junhao Xu
  • Publication number: 20160351677
    Abstract: A sacrificial cap is grown on an upper surface of a conductor. A dielectric spacer is against a side of the conductor. An upper dielectric side spacer is formed on a sidewall of the sacrificial cap. The sacrificial cap is selectively etched, leaving a cap recess, and the upper dielectric side spacer facing the cap recess. Silicon nitride is filled in the cap recess, to form a center cap and a protective cap having center cap and the upper dielectric spacer.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Junjing BAO, Haining YANG, Yanxiang LIU, Jeffrey Junhao XU
  • 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
  • Patent number: 9508439
    Abstract: An apparatus includes a multiple time programmable (MTP) memory device. The MTP memory device includes a metal gate, a substrate material, and an oxide structure between the metal gate and the substrate material. The oxide structure includes a hafnium oxide layer and a silicon dioxide layer. The hafnium oxide layer is in contact with the metal gate and in contact with the silicon dioxide layer. The silicon dioxide layer is in contact with the substrate material. The MTP device includes a transistor, and a non-volatile state of the MTP memory device is based on a threshold voltage of the transistor.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: November 29, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Xia Li, Jeffrey Junhao Xu, Xiao Lu, Matthew Michael Nowak, Seung Hyuk Kang, Xiaonan Chen, Zhongze Wang, Yu Lu
  • Patent number: 9502414
    Abstract: An integrated circuit (IC) device may include a first active transistor of a first-type in a first-type region. The first active transistor may have a first-type work function material and a low channel dopant concentration in an active portion of the first active transistor. The IC device may also include a first isolation transistor of the first-type in the first-type region. The second active transistor may have a second-type work function material and the low channel dopant concentration in an active portion of the first isolation transistor. The first isolation transistor may be arranged adjacent to the first active transistor.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 22, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Vladimir Machkaoutsan, Mustafa Badaroglu, Jeffrey Junhao Xu, Stanley Seungchul Song, Choh Fei Yeap
  • Patent number: 9502283
    Abstract: Electron-beam (e-beam) based semiconductor device features are disclosed. In a particular aspect, a method includes performing a first lithography process to fabricate a first set of cut pattern features on a semiconductor device. A distance of each feature of the first set of cut pattern features from the feature to an active area is greater than or equal to a threshold distance. The method further includes performing an electron-beam (e-beam) process to fabricate a second cut pattern feature on the semiconductor device. A second distance of the second cut pattern feature from the second cut pattern feature to the active area is less than or equal to the threshold distance.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: November 22, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Stanley Seungchul Song, Jeffrey Junhao Xu, Da Yang, Choh Fei Yeap
  • Patent number: 9496181
    Abstract: A fin-based structure may include fins on a surface of a semiconductor substrate. Each of the fins may include a doped portion proximate to the surface of the semiconductor substrate. The fin-based structure may also include an isolation layer disposed between the fins and on the surface of the semiconductor substrate. The fin-based structure may also include a recessed isolation liner on sidewalls of the doped portion of the fins. An unlined doped portion of the fins may extend from the recessed isolation liner to an active portion of the fins at a surface of the isolation layer. The isolation layer is disposed on the unlined doped portion of the fins.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 15, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Stanley Seungchul Song, Jeffrey Junhao Xu, Vladimir Machkaoutsan, Mustafa Badaroglu, Choh Fei Yeap
  • Patent number: 9478541
    Abstract: A method for half-node scaling a circuit layout in accordance with an aspect of the present disclosure includes vertical devices on a die. The method includes reducing a fin pitch and a gate pitch of the vertical devices on the die. The method also includes scaling a wavelength to define at least one reduced area geometric pattern of the circuit layout.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 25, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Stanley Seungchul Song, Kern Rim, Jeffrey Junhao Xu, Matthew Michael Nowak, Choh Fei Yeap, Roawen Chen