Patents by Inventor Weihua Tang

Weihua Tang 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: 11978689
    Abstract: Embodiments disclosed herein include semiconductor dies and methods of forming such dies. In an embodiment, the semiconductor die comprises a semiconductor substrate, an active device layer in the semiconductor substrate, where the active device layer comprises one or more transistors, an interconnect layer over a first surface of the active device layer, a first bonding layer over a surface of the semiconductor substrate, a second bonding layer secured to the first bonding layer, and a heat spreader attached to the second bonding layer.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: May 7, 2024
    Assignee: Intel Corporation
    Inventors: Shrenik Kothari, Chandra Mohan Jha, Weihua Tang, Robert Sankman, Xavier Brun, Pooya Tadayon
  • Patent number: 11948906
    Abstract: An integrated circuit (IC) die structure comprises a substrate material comprising silicon. Integrated circuitry is over a first side of the substrate material. A composite layer is in direct contact with a second side of the substrate material. The second side is opposite the first side. The composite layer comprises a first constituent material associated with a first linear coefficient of thermal expansion (CTE), and a first thermal conductivity exceeding that of the substrate. The composite layer also comprises a second constituent material associated with a second CTE that is lower than the first, and a second thermal conductivity exceeding that of the substrate.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: April 2, 2024
    Assignee: Intel Corporation
    Inventors: Feras Eid, Joe Walczyk, Weihua Tang, Akhilesh Rallabandi, Marco Aurelio Cartas Ayala
  • Patent number: 11756860
    Abstract: Embodiments disclosed herein include semiconductor dies and methods of forming such dies. In an embodiment, the semiconductor die comprises a semiconductor substrate, an active device layer in the semiconductor substrate, where the active device layer comprises one or more transistors, an interconnect layer over a first surface of the active device layer, a first bonding layer over a surface of the semiconductor substrate, a second bonding layer secured to the first bonding layer, and a heat spreader attached to the second bonding layer.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: September 12, 2023
    Assignee: Intel Corporation
    Inventors: Shrenik Kothari, Chandra Mohan Jha, Weihua Tang, Robert Sankman, Xavier Brun, Pooya Tadayon
  • Patent number: 11756856
    Abstract: Embodiments include a microelectronic device package structure having a first die on the substrate. One or more additional dice are on the first die, and a thermal electric cooler (TEC) is on the first die adjacent at least one of the one or more additional dice. A dummy die is on the TEC, wherein the dummy die is thermally coupled to the first die.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: September 12, 2023
    Assignee: Intel Corporation
    Inventors: Krishna Vasanth Valavala, Ravindranath Mahajan, Chandra Mohan Jha, Kelly Lofgreen, Weihua Tang
  • Patent number: 11676883
    Abstract: An Integrated Circuit (IC) assembly, comprising an IC package coupled to a substrate, and a subassembly comprising a thermal interface layer. The thermal interface layer comprises a phase change material (PCM) over the IC package. At least one thermoelectric cooling (TEC) apparatus is thermally coupled to the thermal interface layer.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: June 13, 2023
    Assignee: Intel Corporation
    Inventors: Javed Shaikh, Je-Young Chang, Kelly Lofgreen, Weihua Tang, Aastha Uppal
  • Patent number: 11664294
    Abstract: An integrated circuit assembly may be formed using a phase change material as an electromagnetic shield and as a heat dissipation mechanism for the integrated circuit assembly. In one embodiment, the integrated circuit assembly may comprise an integrated circuit package including a first substrate having a first surface and an opposing second surface, and at least one integrated circuit device having a first surface and an opposing second surface, wherein the at least one integrated circuit device is electrically attached by the first surface thereof to the first surface of the first substrate; and a phase change material formed on the integrated circuit package.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: May 30, 2023
    Assignee: Intel Corporation
    Inventors: Aastha Uppal, Je-Young Chang, Weihua Tang, Minseok Ha
  • Publication number: 20230140685
    Abstract: Embodiments disclosed herein include semiconductor dies and methods of forming such dies. In an embodiment, the semiconductor die comprises a semiconductor substrate, an active device layer in the semiconductor substrate, where the active device layer comprises one or more transistors, an interconnect layer over a first surface of the active device layer, a first bonding layer over a surface of the semiconductor substrate, a second bonding layer secured to the first bonding layer, and a heat spreader attached to the second bonding layer.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 4, 2023
    Inventors: Shrenik KOTHARI, Chandra Mohan JHA, Weihua TANG, Robert SANKMAN, Xavier BRUN, Pooya TADAYON
  • Patent number: 11626395
    Abstract: An electronic device and associated methods are disclosed. In one example, the electronic device includes a plurality of dies, a logic die coupled to the plurality of dies, and a dummy die thereon. In selected examples, the dummy die is located between the logic die and the plurality of silicon dies. In selected examples, the dummy die is attached to the logic die.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: April 11, 2023
    Assignee: Intel Corporation
    Inventors: Robert L. Sankman, Pooya Tadayon, Weihua Tang, Chandra M. Jha, Zhimin Wan
  • Patent number: 11574851
    Abstract: An apparatus is provided which comprises: a package substrate, an integrated circuit device coupled to a surface of the package substrate, a first material on the surface of the package substrate, the first material contacting one or more lateral sides of the integrated circuit device, the first material extending at least to a surface of the integrated circuit device opposite the package substrate, two or more separate fins over a surface of the integrated circuit device, the two or more fins comprising a second material having a different composition than the first material, and a third material having a different composition than the second material, the third material over the surface of the integrated circuit device and between the two or more fins. Other embodiments are also disclosed and claimed.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: February 7, 2023
    Assignee: Intel Corporation
    Inventors: Aastha Uppal, Omkar Karhade, Ram Viswanath, Je-Young Chang, Weihua Tang, Nitin Deshpande, Mitul Modi, Edvin Cetegen, Sanka Ganesan, Yiqun Bai, Jan Krajniak, Kumar Singh
  • Publication number: 20220384306
    Abstract: A thermal interface structure for facilitating heat transfer from an integrated circuit device to a heat dissipation device may be fabricated to include at least one conductive wire structure wherein each conductive wire structure includes a conductive wire having a first end, a first barrier layer adjacent the first end of the conductive wire, and a first solder structure adjacent the first barrier layer. The thermal interface structure may further include an encapsulation material substantially encapsulating each conductive wire structure and a first solder layer abutting the encapsulation material and abutting the first solder structure of each conductive wire structure.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 1, 2022
    Applicant: Intel Corporation
    Inventors: Weihua Tang, Chandra Mohan Jha, Nicholas S. Haehn
  • Patent number: 11444003
    Abstract: An integrated heat spreader includes channel structures assembled in a frame. Each channel structure is independent of the other, and can be used to dissipate heat from integrated circuitry at a specific location within a package, and without allowing heat from that particular location to propagate to integrated circuitry at other locations within the package. Each channel structure can be implemented with metal having a high thermal conductivity (e.g., copper). The channel structures can be used in conjunction with liquid-based cooling or air-based cooling. The frame can be implemented with low thermal conductivity molding compound or plastic so the heat transfer from one channel structure to another is inhibited. The channel structures can have different configurations (e.g., straight, pillars, and/or pin fins) to provide different rates of flow, mixing, and/or cooling. The flow direction of air or liquid for the channel structures can be the same (parallel) or different (counter).
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: September 13, 2022
    Assignee: Intel Corporation
    Inventors: Zhimin Wan, Chia-Pin Chiu, Chandra Mohan Jha, Weihua Tang, Shankar Devasenathipathy
  • Patent number: 11398414
    Abstract: Heat dissipation techniques include using metal features having one or more slanted or otherwise laterally-extending aspects. The metal features include, for example, tilted metal pillars, or metal bodies or fillets having an angled or sloping sidewall, or other metal features that extend both vertically and laterally. Such metal features increase the effective heat transfer area significantly by spreading heat in the in-plane (lateral) direction, in addition to the vertical direction. In some embodiments, slanted trenches are formed in photoresist/mold material deposited over a lower die, using photolithography and a multi-angle lens, or by laser drilling mold material deposited over the lower die. The trenches are then filled with metal. In other embodiments, metal features are printed on the lower die, and then molding material is deposited over the printed features. In any such cases, heat is conducted from a lower die to an upper die and/or an integrated heat spreader.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: July 26, 2022
    Assignee: Intel Corporation
    Inventors: Zhimin Wan, Chia-Pin Chiu, Pooya Tadayon, Joe F. Walczyk, Chandra Mohan Jha, Weihua Tang, Shrenik Kothari, Shankar Devasenathipathy
  • Patent number: 11374605
    Abstract: A wireless data communication radio includes a first transceiver configured to be coupled to a first antenna, and a second transceiver configured to be coupled to a second antenna. The second transceiver includes a multi-path detector. The wireless data communication radio transmits a radio signal via the first transceiver, receives the radio signal at the second transceiver, and determines, by the multi-path detector, that the radio signal, as received by the second transceiver, was transmitted by the first antenna and received by second antenna.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: June 28, 2022
    Assignee: NXP USA, Inc.
    Inventor: Weihua Tang
  • Publication number: 20210398966
    Abstract: An electronic device and associated methods are disclosed. In one example, the electronic device includes a plurality of dies, a logic die coupled to the plurality of dies, and a dummy die thereon. In selected examples, the dummy die is located between the logic die and the plurality of silicon dies. In selected examples, the dummy die is attached to the logic die.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 23, 2021
    Inventors: Robert L. Sankman, Pooya Tadayon, Weihua Tang, Chandra M. Jha, Zhimin Wan
  • Publication number: 20210391244
    Abstract: Embodiments disclosed herein comprise a die and methods of forming a die. In an embodiment, a die comprises, a die substrate, wherein the die substrate has a first thermal conductivity, and a first layer over the die substrate, wherein the first layer has a second thermal conductivity that is greater than the first thermal conductivity. In an embodiment, the die further comprises a second layer over the first layer, wherein the second layer comprises transistors.
    Type: Application
    Filed: June 10, 2020
    Publication date: December 16, 2021
    Inventors: Chandra Mohan JHA, Pooya TADAYON, Aastha UPPAL, Weihua TANG, Paul DIGLIO, Xavier BRUN
  • Patent number: 11127727
    Abstract: An electronic device and associated methods are disclosed. In one example, the electronic device includes a plurality of dies, a logic die coupled to the plurality of dies, and a dummy die thereon. In selected examples, the dummy die is located between the logic die and the plurality of silicon dies. In selected examples, the dummy die is attached to the logic die.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: September 21, 2021
    Assignee: Intel Corporation
    Inventors: Robert L. Sankman, Pooya Tadayon, Weihua Tang, Chandra M. Jha, Zhimin Wan
  • Publication number: 20210249375
    Abstract: An integrated circuit (IC) die structure comprises a substrate material comprising silicon. Integrated circuitry is over a first side of the substrate material. A composite layer is in direct contact with a second side of the substrate material. The second side is opposite the first side. The composite layer comprises a first constituent material associated with a first linear coefficient of thermal expansion (CTE), and a first thermal conductivity exceeding that of the substrate. The composite layer also comprises a second constituent material associated with a second CTE that is lower than the first, and a second thermal conductivity exceeding that of the substrate.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 12, 2021
    Applicant: INTEL CORPORATION
    Inventors: Feras Eid, Joe Walczyk, Weihua Tang, Akhilesh Rallabandi, Marco Aurelio Cartas Ayala
  • Publication number: 20200388603
    Abstract: An electronic device and associated methods are disclosed. In one example, the electronic device includes a plurality of dies, a logic die coupled to the plurality of dies, and a dummy die thereon. In selected examples, the dummy die is located between the logic die and the plurality of silicon dies. In selected examples, the dummy die is attached to the logic die.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 10, 2020
    Inventors: Robert L. Sankman, Pooya Tadayon, Weihua Tang, Chandra M. Jha, Zhimin Wan
  • Publication number: 20200294884
    Abstract: An Integrated Circuit (IC) assembly, comprising an IC package coupled to a substrate, and a subassembly comprising a thermal interface layer. The thermal interface layer comprises a phase change material (PCM) over the IC package. At least one thermoelectric cooling (TEC) apparatus is thermally coupled to the thermal interface layer.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Applicant: Intel Corporation
    Inventors: Javed Shaikh, Je-Young Chang, Kelly Lofgreen, Weihua Tang, Aastha Uppal
  • Publication number: 20200273772
    Abstract: An apparatus is provided which comprises: a package substrate, an integrated circuit device coupled to a surface of the package substrate, a first material on the surface of the package substrate, the first material contacting one or more lateral sides of the integrated circuit device, the first material extending at least to a surface of the integrated circuit device opposite the package substrate, two or more separate fins over a surface of the integrated circuit device, the two or more fins comprising a second material having a different composition than the first material, and a third material having a different composition than the second material, the third material over the surface of the integrated circuit device and between the two or more fins. Other embodiments are also disclosed and claimed.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Applicant: Intel Corporation
    Inventors: Aastha Uppal, Omkar Karhade, Ram Viswanath, Je-Young Chang, Weihua Tang, Nitin Deshpande, Mitul Modi, Edvin Cetegen, Sanka Ganesan, Yiqun Bai, Jan Krajniak, Kumar Singh