Patents Assigned to Great Wall Semiconductor Corporation
  • Patent number: 10832915
    Abstract: A semiconductor device, method of manufacture of a semiconductor device, and electronic system are disclosed. For example, the semiconductor device includes at least one trench disposed in a semiconductor substrate of the semiconductor device, wherein the semiconductor substrate has a first conductivity type. The semiconductor device further includes a polysilicon depleted gate shield disposed in the at least one trench, wherein the polysilicon depleted gate shield has a second conductivity type. The semiconductor device also includes a drift region disposed in the semiconductor substrate adjacent to at least one sidewall of the at least one trench, wherein the drift region has the first conductivity type, and a polysilicon gate disposed over the depleted gate shield in the at least one trench.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 10, 2020
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 10825926
    Abstract: A semiconductor device, method of manufacture of a semiconductor device, and electronic system are disclosed. For example, the semiconductor device includes at least one trench disposed in a semiconductor substrate of the semiconductor device, wherein the semiconductor substrate has a first conductivity type. The semiconductor device further includes a polysilicon depleted gate shield disposed in the at least one trench, wherein the polysilicon depleted gate shield has a second conductivity type. The semiconductor device also includes a drift region disposed in the semiconductor substrate adjacent to at least one sidewall of the at least one trench, wherein the drift region has the first conductivity type, and a polysilicon gate disposed over the depleted gate shield in the at least one trench.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 3, 2020
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 10741479
    Abstract: A leadframe includes a common contact. A first transistor is disposed over the leadframe with a first interconnect structure of the first transistor disposed over the common contact. A second transistor is disposed over the leadframe with a second interconnect structure of the second transistor disposed over the common contact.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: August 11, 2020
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 10707327
    Abstract: A semiconductor device includes a semiconductor substrate including a doped region. A metal layer is formed on the doped region. An insulating layer covers the metal layer. The metal layer can serve as a buried metal layer which reduces electrical resistance between electrical charge in the doped region and adjacent contacts. The contacts can extend through the insulating layer between the buried metal layer and overlying metal stripes.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 7, 2020
    Assignee: Great Wall Semiconductor Corporation
    Inventors: Patrick M. Shea, David N. Okada, Samuel J. Anderson
  • Publication number: 20200144161
    Abstract: A leadframe includes a common contact. A first transistor is disposed over the leadframe with a first interconnect structure of the first transistor disposed over the common contact. A second transistor is disposed over the leadframe with a second interconnect structure of the second transistor disposed over the common contact.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Applicant: GREAT WALL SEMICONDUCTOR CORPORATION
    Inventor: Patrick M. Shea
  • Patent number: 10529651
    Abstract: A leadframe includes a common contact. A first transistor is disposed over the leadframe with a first interconnect structure of the first transistor disposed over the common contact. A second transistor is disposed over the leadframe with a second interconnect structure of the second transistor disposed over the common contact.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: January 7, 2020
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 10199459
    Abstract: A semiconductor device has a substrate and a lightly doped drain (LDD) region formed in the substrate. A superjunction is formed in the LDD region.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: February 5, 2019
    Assignee: Great Wall Semiconductor Corporation
    Inventors: Patrick M. Shea, Samuel J. Anderson, David N. Okada
  • Patent number: 10164088
    Abstract: A semiconductor device, method of manufacture of a semiconductor device, and electronic system are disclosed. For example, the semiconductor device includes at least one trench disposed in a semiconductor substrate of the semiconductor device, wherein the semiconductor substrate has a first conductivity type. The semiconductor device further includes a polysilicon depleted gate shield disposed in the at least one trench, wherein the polysilicon depleted gate shield has a second conductivity type. The semiconductor device also includes a drift region disposed in the semiconductor substrate adjacent to at least one sidewall of the at least one trench, wherein the drift region has the first conductivity type, and a polysilicon gate disposed over the depleted gate shield in the at least one trench.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 25, 2018
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 10163639
    Abstract: A semiconductor device, method of manufacture of a semiconductor device, and electronic system are disclosed. For example, the semiconductor device includes at least one trench disposed in a semiconductor substrate of the semiconductor device, wherein the semiconductor substrate has a first conductivity type. The semiconductor device further includes a polysilicon depleted gate shield disposed in the at least one trench, wherein the polysilicon depleted gate shield has a second conductivity type. The semiconductor device also includes a drift region disposed in the semiconductor substrate adjacent to at least one sidewall of the at least one trench, wherein the drift region has the first conductivity type, and a polysilicon gate disposed over the depleted gate shield in the at least one trench.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: December 25, 2018
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 10153167
    Abstract: A semiconductor device comprises a first semiconductor wafer including a cavity formed in the first semiconductor die. A second semiconductor die is bonded to the first semiconductor die over the cavity. A first transistor includes a portion of the first transistor formed over the cavity.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: December 11, 2018
    Assignee: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 9666703
    Abstract: A semiconductor device comprises a first semiconductor wafer including a cavity formed in the first semiconductor die. A second semiconductor die is bonded to the first semiconductor die over the cavity. A first transistor includes a portion of the first transistor formed over the cavity.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 30, 2017
    Assignee: GREAT WALL SEMICONDUCTOR CORPORATION
    Inventor: Patrick M. Shea
  • Patent number: 9640638
    Abstract: A semiconductor device has a substrate and gate structure over the substrate. A source region is formed in the substrate adjacent to the gate structure. A drain region in the substrate adjacent to the gate structure opposite the source region. An interconnect structure is formed over the substrate by forming a conductive plane electrically connected to the source region, and forming a conductive layer within openings of the conductive plane and electrically connected to the drain region. The interconnect structure can be formed as stacked conductive layers laid out in alternating strips. The conductive plane extends under a gate terminal of the semiconductor device. An insulating layer is formed over the substrate and a field plate is formed in the insulating layer. The field plate is electrically connected the source terminal. A stress relief layer is formed over a surface of the substrate opposite the gate structure.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: May 2, 2017
    Assignee: GREAT WALL SEMICONDUCTOR CORPORATION
    Inventors: Samuel J. Anderson, David N. Okada, Patrick M. Shea
  • Publication number: 20160308015
    Abstract: A semiconductor device comprises a semiconductor substrate including a doped region. A metal layer is formed on the doped region. An insulating layer covers the metal layer.
    Type: Application
    Filed: December 28, 2015
    Publication date: October 20, 2016
    Applicant: Great Wall Semiconductor Corporation
    Inventors: Patrick M. Shea, David N. Okada, Samuel J. Anderson
  • Publication number: 20160284629
    Abstract: A leadframe includes a common contact. A first transistor is disposed over the leadframe with a first interconnect structure of the first transistor disposed over the common contact. A second transistor is disposed over the leadframe with a second interconnect structure of the second transistor disposed over the common contact.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 29, 2016
    Applicant: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Publication number: 20160211365
    Abstract: A semiconductor device has a substrate and a lightly doped drain (LDD) region formed in the substrate. A superjunction is formed in the LDD region.
    Type: Application
    Filed: March 25, 2016
    Publication date: July 21, 2016
    Applicant: Great Wall Semiconductor Corporation
    Inventors: Patrick M. Shea, Samuel J. Anderson, David N. Okada
  • Publication number: 20160181361
    Abstract: A semiconductor device comprises a first semiconductor wafer including a cavity formed in the first semiconductor die. A second semiconductor die is bonded to the first semiconductor die over the cavity. A first transistor includes a portion of the first transistor formed over the cavity.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 23, 2016
    Applicant: Great Wall Semiconductor Corporation
    Inventor: Patrick M. Shea
  • Patent number: 9299774
    Abstract: A semiconductor device has a substrate and a gate formed over the substrate. An LDD region is formed in the substrate adjacent to the gate. A superjunction is formed in the LDD region while a portion of the LDD region remains between the superjunction and gate. A mask is formed over the substrate. A first region is doped with a first type of dopant using the mask. A stripe is doped with a second type of dopant using a portion of the mask. A drain contact region is formed in the substrate. The first region extends to the drain contact region. The first region and stripe are formed using chain implants. A source field plate and drain field plate are formed over the substrate. A trench is formed in the substrate. A source contact region is formed in the trench.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: March 29, 2016
    Assignee: Great Wall Semiconductor Corporation
    Inventors: Patrick M. Shea, Samuel J. Anderson, David N. Okada
  • Patent number: 9099519
    Abstract: A semiconductor device has a substrate and first and second gate structures formed over a first surface of the substrate. A drain region is formed in the substrate as a second surface of the substrate. An epitaxial region is formed in the substrate over the drain region. A sidewall spacer is formed over the first and second gate structures. A lateral LDD region is formed between the first and second gate structures. A trench is formed through the lateral LDD region and partially through the substrate self-aligned to the sidewall spacer. A vertical drift region is formed along a sidewall of the trench. An insulating material is deposited in the trench. A first source region is formed adjacent to the first gate structure opposite the lateral LDD region. A second source region is formed adjacent to the second gate structure opposite the lateral LDD region.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: August 4, 2015
    Assignee: Great Wall Semiconductor Corporation
    Inventors: Zheng John Shen, Patrick M. Shea, David N. Okada
  • Patent number: 9018706
    Abstract: A cell phone has a plurality of interconnected electronic components for performing the electrical functions of the phone. A DC/DC converter provides an operating voltage which is applied to power supply terminals of the plurality of interconnected electronic components. The DC/DC converter uses a monolithic semiconductor device containing a power metal oxide semiconductor field effect transistor (MOSFET) and Schottky diode. The semiconductor device has the lateral diffused MOSFET formed on a surface of the semiconductor device. The MOSFET is formed with a plurality conduction fingers. The Schottky diode is also formed on the surface of the semiconductor device and integrated between the plurality of conduction fingers of the MOSFET. The drain of the MOSFET is connected to the anode of the diode on the surface of the monolithic semiconductor device.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: April 28, 2015
    Assignee: Great Wall Semiconductor Corporation
    Inventors: Samuel J. Anderson, David N. Okada
  • Patent number: 9006099
    Abstract: A semiconductor device has a substrate with a source region and a drain region formed on the substrate. A silicide layer is disposed over the source region and drain region. A first interconnect layer is formed over the silicide layer and includes a first runner connected to the source region and second runner connected to the drain region. A second interconnect layer is formed over the first interconnect layer and includes a third runner connected to the first runner and a fourth runner connected to the second runner. An under bump metallization (UBM) is formed over and electrically connected to the second interconnect layer. A mask is disposed over the substrate with an opening in the mask aligned over the UBM. A conductive bump material is deposited within the opening in the mask. The mask is removed and the conductive bump material is reflowed to form a bump.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: April 14, 2015
    Assignee: Great Wall Semiconductor Corporation
    Inventors: Samuel J. Anderson, David N. Okada