Patents by Inventor Xueren Zhang

Xueren Zhang 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: 10658238
    Abstract: Embodiments are directed to a package that includes an electric device having a recess. In one embodiment, the electric device is a sensor and the recess reduces signal drift of the sensor caused by thermal expansion of the package. In another embodiment, the recess is substantially filled with adhesive material, thus increasing adhesion between the electric device and a substrate of the package while at the same time allowing for lower adhesive fillets.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: May 19, 2020
    Assignee: STMICROELECTRONICS PTE LTD
    Inventors: Kim-Yong Goh, Xueren Zhang, Yiyi Ma
  • Publication number: 20180040514
    Abstract: Embodiments are directed to a package that includes an electric device having a recess. In one embodiment, the electric device is a sensor and the recess reduces signal drift of the sensor caused by thermal expansion of the package. In another embodiment, the recess is substantially filled with adhesive material, thus increasing adhesion between the electric device and a substrate of the package while at the same time allowing for lower adhesive fillets.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Inventors: Kim-Yong Goh, Xueren Zhang, Yiyi Ma
  • Patent number: 9824924
    Abstract: Embodiments are directed to a package that includes an electric device having a recess. In one embodiment, the electric device is a sensor and the recess reduces signal drift of the sensor caused by thermal expansion of the package. In another embodiment, the recess is substantially filled with adhesive material, thus increasing adhesion between the electric device and a substrate of the package while at the same time allowing for lower adhesive fillets.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: November 21, 2017
    Assignee: STMicroelectronics Pte Ltd.
    Inventors: Kim-Yong Goh, Xueren Zhang, Yiyi Ma
  • Patent number: 9679870
    Abstract: An integrated circuit (IC) device includes an IC and encapsulating material surrounding the IC. Leads are coupled to the IC and extend outwardly from sides of the encapsulating material, with each lead having three contiguous exposed segments with upper and lower bends defining a Z-shape. In another example, the leads include an upper horizontal segment, lower horizontal segment, and intermediate curved segment extending upwardly from the upper horizontal segment and downwardly to the lower horizontal segment.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: June 13, 2017
    Assignee: STMicroelectronics Pte Ltd
    Inventors: Yiyi Ma, Kim-Yong Goh, Xueren Zhang, Wei Zhen Goh
  • Patent number: 9620438
    Abstract: An electronic device includes an integrated circuit chip mounted to a heat slug. The heat slug has a peripheral region having first thickness along a first direction, the peripheral region surrounding a recess region (having a second, smaller, thickness along the first direction) that defines a chip mounting surface along a second direction perpendicular to the first direction. The recess region defines side borders and a nook extends into the heat slug along the side borders. An insulating body embeds the integrated circuit one chip and heat slug. Material of the insulating body fills the nook.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: April 11, 2017
    Assignees: STMICROELECTRONICS (MALTA) LTD, STMICROELECTRONICS S.R.L., STMICROELECTRONICS PTE LTD
    Inventors: Roseanne Duca, Valter Motta, Xueren Zhang, Kim-Yong Goh
  • Patent number: 9576912
    Abstract: A wafer level chip scale package (WLCSP) includes a semiconductor substrate, a back end of line (BEOL) layer on the semiconductor substrate and having a peripheral edge recessed inwardly from an adjacent peripheral edge of the semiconductor substrate. A first dielectric layer is over the BEOL layer and wraps around the peripheral edge of the BEOL layer. A redistribution layer is over the first dielectric layer and a second dielectric layer is over the redistribution layer.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: February 21, 2017
    Assignee: STMICROELECTRONICS PTE LTD
    Inventors: Yiyi Ma, Kim-Yong Goh, Xueren Zhang
  • Publication number: 20160293512
    Abstract: An electronic device may include a substrate, an active IC die above the substrate, and a dummy IC die above the active IC die. The electronic device may include a first adhesive layer between the active IC die and the dummy IC die, and a heat sink layer above the dummy IC die and extending laterally outwardly to define a gap between the substrate and opposing portions of the heat sink layer.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: Yiyi MA, Kim-Yong GOH, Xueren ZHANG
  • Patent number: 9449912
    Abstract: An integrated circuit (IC) module for an IC card includes a plurality of IC card contacts in side-by-side relation. A dielectric support layer is above the contact layer and has a plurality of openings and a first coefficient of thermal expansion (CTE). An IC die is above the dielectric support layer and includes a plurality of bond pads. A bond wire extends from a respective bond pad to a corresponding contact through an adjacent opening in the dielectric support layer. A respective body of fill material is within each opening and has a second CTE. A mold compound body is above the dielectric support layer, the bodies of fill material, and surrounding the IC die. The mold compound body has a third CTE. The first CTE is closer to the second CTE than to the third CTE.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: September 20, 2016
    Assignees: STMICROELECTRONICS PTE LTD, STMICROELECTRONICS (MALTA) LTD
    Inventors: Xueren Zhang, Kim-Yong Goh, Roseanne Duca
  • Publication number: 20160190029
    Abstract: A method of making an electronic device may include positioning an integrated circuit (IC) die on an upper surface of a grid array substrate having connections on a lower surface thereof and coupling respective bond pads of the IC die to the grid array with bond wires. The method may also include forming a first encapsulating layer over the IC die and bond wires and positioning a heat spreader on the substrate above the first encapsulating layer after forming the first encapsulating layer. The method may further include forming a second encapsulating layer over the first encapsulating layer and embedding the heat spreader in the second encapsulating layer.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 30, 2016
    Inventors: Kim-Yong GOH, Yiyi Ma, Xueren Zhang
  • Patent number: 9379034
    Abstract: A method of making an electronic device may include positioning an integrated circuit (IC) die on an upper surface of a grid array substrate having connections on a lower surface thereof and coupling respective bond pads of the IC die to the grid array with bond wires. The method may also include forming a first encapsulating layer over the IC die and bond wires and positioning a heat spreader on the substrate above the first encapsulating layer after forming the first encapsulating layer. The method may further include forming a second encapsulating layer over the first encapsulating layer and embedding the heat spreader in the second encapsulating layer.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: June 28, 2016
    Assignee: STMICROELECTRONICS PTE LTD
    Inventors: Kim-Yong Goh, Yiyi Ma, Xueren Zhang
  • Publication number: 20160172262
    Abstract: An integrated circuit (IC) device includes an IC and encapsulating material surrounding the IC. Leads are coupled to the IC and extend outwardly from sides of the encapsulating material, with each lead having three contiguous exposed segments with upper and lower bends defining a Z-shape. In another example, the leads include an upper horizontal segment, lower horizontal segment, and intermediate curved segment extending upwardly from the upper horizontal segment and downwardly to the lower horizontal segment.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 16, 2016
    Inventors: Yiyi MA, Kim-Yong GOH, Xueren ZHANG, Wei Zhen GOH
  • Patent number: 9257372
    Abstract: A surface mount package of a semiconductor device, has: an encapsulation, housing at least one die including semiconductor material; and electrical contact leads, protruding from the encapsulation to be electrically coupled to contact pads of a circuit board; the encapsulation has a main face designed to face a top surface of the circuit board, which is provided with coupling features designed for mechanical coupling to the circuit board to increase a resonant frequency of the mounted package. The coupling features envisage at least a first coupling recess defined within the encapsulation starting from the main face, designed to be engaged by a corresponding coupling element fixed to the circuit board, thereby restricting movements of the mounted package.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: February 9, 2016
    Assignees: STMicroelectronics (Mala) Ltd, STMicroelectronics Pte Ltd
    Inventors: Roseanne Duca, Kim-Yong Goh, Xueren Zhang, Kevin Formosa
  • Publication number: 20150235929
    Abstract: An electronic device includes an integrated circuit chip mounted to a heat slug. The heat slug has a peripheral region having first thickness along a first direction, the peripheral region surrounding a recess region (having a second, smaller, thickness along the first direction) that defines a chip mounting surface along a second direction perpendicular to the first direction. The recess region defines side borders and a nook extends into the heat slug along the side borders. An insulating body embeds the integrated circuit one chip and heat slug. Material of the insulating body fills the nook.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 20, 2015
    Applicants: STMICROELECTRONICS (MALTA) LTD, STMICROELECTRONICS S.R.L., STMICROELECTRONICS PTE LTD
    Inventors: Roseanne Duca, Valter Motta, Xueren Zhang, Kim-Yong Goh
  • Publication number: 20150084171
    Abstract: A non-lead (QFN) semiconductor package is disclosed. The package includes a die attach pad and a semiconductor die supported by the die attached pad. The semiconductor die includes a plurality of pads on an active surface thereof. The package further includes a plurality of terminal leads, an encapsulant that encapsulates the semiconductor die, and a redistribution layer including a plurality of interconnections electrically connecting the pads to the terminal leads. A method of making the package is also disclosed.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 26, 2015
    Applicant: STMicroelectronics Pte. Ltd.
    Inventors: Yiyi Ma, Kim-Yong Goh, Xueren Zhang
  • Publication number: 20140291812
    Abstract: Embodiments are directed to a package that includes an electric device having a recess. In one embodiment, the electric device is a sensor and the recess reduces signal drift of the sensor caused by thermal expansion of the package. In another embodiment, the recess is substantially filled with adhesive material, thus increasing adhesion between the electric device and a substrate of the package while at the same time allowing for lower adhesive fillets.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: STMicroelectronics Pte Ltd.
    Inventors: Kim-Yong Goh, Xueren Zhang, Yiyi Ma
  • Patent number: 8800391
    Abstract: A force sensor to measure a force from a load includes a plunger, a flexible disc-shaped membrane, a support plate and a silicon die. The plunger is configured to receive the force from the load, and has a ring-shaped groove at the lower surface. The membrane has a ring-shaped upper bump at the upper surface configured to complementarily fit into the groove at the lower surface of plunger and a ring-shaped lower bump at lower upper surface. The support plate has a ring-shaped groove for complementary fit into the lower bump on the lower surface of the membrane. The silicon die is centrally mounted on the membrane and comprises piezo-resistors with resistance that varies when deformed by the force. Force received by the plunger is transmitted to the membrane, causing the membrane to flex and bending or compressing of the silicon die, resulting in the measurement of the force.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: August 12, 2014
    Assignee: STMicroelectronics Asia Pacific Pte, Ltd.
    Inventors: Xueren Zhang, Andrea Lorenzo Vitali, Federico Giovanni Ziglioli, Bruno Biffi, Tong Yan Tee
  • Patent number: 8796826
    Abstract: A device and method for minimizing the forces that may compromise a lead frame mount to a support structure in an integrated circuit die package during various packaging method steps. When a window clamp is used to provide pressure during a lead frame bonding step or during a wire bonding step during packaging, the vertical force applied by the window clamp may be transferred in lateral direction by the physical contour of the top plate of the support structure. By changing the physical contour of the top plate of the support structure, such as by disposing a specific kind of contoured protrusion, one may minimize or eliminate the lateral forces that act against achieving a solid bond of the lead frame to the support structure. Further, during wire bonding, the same minimization or elimination of lateral forces lead to improved wire bonding.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 5, 2014
    Assignee: STMicroelectronics Pte Ltd
    Inventors: Xueren Zhang, Kim-Yong Goh, Wingshenq Wong
  • Patent number: 8772943
    Abstract: An integrated circuit die has a dielectric layer positioned over all the contact pads on the integrated circuit die. Openings are provided in the dielectric layer over each of the contact pads of the integrated circuit die in order to permit electrical coupling to be made between the integrated circuit and circuit boards outside of the die. For those contact pads located in the central region of the die, the opening in the dielectric layer is in a central region of the contact pad. For those contact pads located in a peripheral region of the die, spaced adjacent the perimeter die, the opening in the dielectric layer is offset from the center of the contact pad and is positioned closer to the central region of the die than the center of the contact pad is to the central region of the die.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: July 8, 2014
    Assignee: STMicroelectronics Pte Ltd.
    Inventors: Xueren Zhang, Kim-Yong Goh
  • Publication number: 20140091443
    Abstract: A surface mount package of a semiconductor device, has: an encapsulation, housing at least one die including semiconductor material; and electrical contact leads, protruding from the encapsulation to be electrically coupled to contact pads of a circuit board; the encapsulation has a main face designed to face a top surface of the circuit board, which is provided with coupling features designed for mechanical coupling to the circuit board to increase a resonant frequency of the mounted package. The coupling features envisage at least a first coupling recess defined within the encapsulation starting from the main face, designed to be engaged by a corresponding coupling element fixed to the circuit board, thereby restricting movements of the mounted package.
    Type: Application
    Filed: September 19, 2013
    Publication date: April 3, 2014
    Applicants: STMicroelectronics Pte Ltd, STMicroelectronics (Malta) Ltd
    Inventors: Roseanne Duca, Kim-Yong Goh, Xueren Zhang, Kevin Formosa
  • Patent number: 8592980
    Abstract: An interconnect structure for use in an integrated circuit is provided. The interconnect structure includes a first low-K dielectric material. The first low-K material may be modified with a first group of carbon nanotubes (CNTs) and disposed on a metal line. The first low-K material is modified by dispersing the first group of CNTs in a solution, spinning the solution onto a silicon wafer and curing the solution to form the first low-K material modified with the first CNTs. The metal line includes a top layer and a bottom layer connected by a metal via. The interconnect structure also includes a second low-K dielectric material modified with a second group of CNTs and disposed on the bottom layer. Accordingly, embodiments the present disclosure could help to increase the mechanical strength of the low-K material or the entire interconnect structure.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: November 26, 2013
    Assignee: STMicroelectronics Asia Pacific Pte., Ltd.
    Inventors: Shanzhong Wang, Valeriy Nosik, Tong Yan Tee, Xueren Zhang