Patents by Inventor Angelo Magrì

Angelo Magrì 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: 20230420557
    Abstract: A power MOSFET device includes an active area accommodating a first body region and a second body region having a first and, respectively, a second conductivity value. The second value is higher than the first value. A first channel region is disposed in the first body region between a first source region and a drain region, and the first channel region has and having a first channel length. A second channel region is disposed in the second body region between a second source region and the drain region, and the second channel region has and having a second channel length smaller than the first channel length. A first device portion, having a first threshold voltage, includes the first channel region, and a second device portion, having a second threshold voltage higher than the first threshold voltage, includes the second channel region.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 28, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Angelo MAGRI', Stefania FORTUNA
  • Patent number: 11798981
    Abstract: An electronic device includes a semiconductor body of silicon carbide, and a body region at a first surface of the semiconductor body. A source region is disposed in the body region. A drain region is disposed at a second surface of the semiconductor body. A doped region extends seamlessly at the entire first surface of the semiconductor body and includes one or more first sub-regions having a first doping concentration and one or more second sub-regions having a second doping concentration lower than the first doping concentration. Thus, the device has zones alternated to each other having different conduction threshold voltage and different saturation current.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: October 24, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Mario Giuseppe Saggio, Angelo Magri', Edoardo Zanetti, Alfio Guarnera
  • Patent number: 11728422
    Abstract: A power MOSFET device includes an active area accommodating a first body region and a second body region having a first and, respectively, a second conductivity value. The second value is higher than the first value. A first channel region is disposed in the first body region between a first source region and a drain region, and the first channel region has and having a first channel length. A second channel region is disposed in the second body region between a second source region and the drain region, and the second channel region has and having a second channel length smaller than the first channel length. A first device portion, having a first threshold voltage, includes the first channel region, and a second device portion, having a second threshold voltage higher than the first threshold voltage, includes the second channel region.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: August 15, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Angelo Magri', Stefania Fortuna
  • Publication number: 20210399089
    Abstract: An electronic device includes a semiconductor body of silicon carbide, and a body region at a first surface of the semiconductor body. A source region is disposed in the body region. A drain region is disposed at a second surface of the semiconductor body. A doped region extends seamlessly at the entire first surface of the semiconductor body and includes one or more first sub-regions having a first doping concentration and one or more second sub-regions having a second doping concentration lower than the first doping concentration. Thus, the device has zones alternated to each other having different conduction threshold voltage and different saturation current.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 23, 2021
    Applicant: STMicroelectronics S.r.l.
    Inventors: Mario Giuseppe SAGGIO, Angelo MAGRI', Edoardo ZANETTI, Alfio GUARNERA
  • Publication number: 20210151599
    Abstract: A power MOSFET device includes an active area accommodating a first body region and a second body region having a first and, respectively, a second conductivity value. The second value is higher than the first value. A first channel region is disposed in the first body region between a first source region and a drain region, and the first channel region has and having a first channel length. A second channel region is disposed in the second body region between a second source region and the drain region, and the second channel region has and having a second channel length smaller than the first channel length. A first device portion, having a first threshold voltage, includes the first channel region, and a second device portion, having a second threshold voltage higher than the first threshold voltage, includes the second channel region.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 20, 2021
    Inventors: Angelo MAGRI', Stefania FORTUNA
  • Patent number: 10505033
    Abstract: An electronic device is integrated on a chip of semiconductor material having a main surface and a substrate region with a first type of conductivity. The electronic device has a vertical MOS transistor, formed in an active area having a body region with a second conductivity type.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: December 10, 2019
    Assignee: STMicroelectronics S.r.l.
    Inventors: Angelo Magrí, Giacomo Barletta
  • Publication number: 20170207334
    Abstract: An electronic device is integrated on a chip of semiconductor material having a main surface and a substrate region with a first type of conductivity. The electronic device has a vertical MOS transistor, formed in an active area having a body region with a second conductivity type.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Angelo MAGRÍ, Giacomo BARLETTA
  • Patent number: 9647061
    Abstract: An electronic device is integrated on a chip of semiconductor material having a main surface and a substrate region with a first type of conductivity. The electronic device has a vertical MOS transistor, formed in an active area having a body region with a second conductivity type.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: May 9, 2017
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Angelo Magri, Giacomo Barletta
  • Patent number: 9627472
    Abstract: An embodiment of a structure for a high voltage device of the type which comprises at least a semiconductor substrate being covered by an epitaxial layer of a first type of conductivity, wherein a plurality of column structures are realized, which column structures comprises high aspect ratio deep trenches, said epitaxial layer being in turn covered by an active surface area wherein said high voltage device is realized, each of the column structures comprising at least an external portion being in turn realized by a silicon epitaxial layer of a second type of conductivity, opposed than said first type of conductivity and having a dopant charge which counterbalances the dopant charge being in said epitaxial layer outside said column structures, as well as a dielectric filling portion which is realized inside said external portion in order to completely fill said deep trench.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 18, 2017
    Assignee: STMicroelectronics S.r.l.
    Inventors: Mario Giuseppe Saggio, Domenico Murabito, Angelo Magri'
  • Patent number: 9520468
    Abstract: A power device integrated on a semiconductor substrate and having a plurality of conductive bridges within a trench gate structure. In an embodiment, a semiconductor substrate includes a trench having sidewalls and a bottom, the walls and bottom are covered with a first insulating coating layer which then also includes a conductive gate structure. An embodiment provides the formation of the conductive gate structure with covering at least the sidewalls with a second conductive coating layer of a first conductive material. This results in a conductive central region of a second conductive material having a different resistivity than the first conductive material forming a plurality of conductive bridges between said second conductive coating layer and said conductive central region.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: December 13, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Angelo Magri′, Antonino Sebastiano Alessandria, Stefania Fortuna, Leonardo Fragapane
  • Patent number: 9484404
    Abstract: An electronic device is integrated on a chip of semiconductor material having a main surface and a substrate region with a first type of conductivity. The electronic device has a vertical MOS transistor, formed in an active area having a body region with a second conductivity type.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: November 1, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Giacomo Barletta, Angelo Magrí
  • Publication number: 20160079356
    Abstract: An electronic device is integrated on a chip of semiconductor material having a main surface and a substrate region with a first type of conductivity. The electronic device has a vertical MOS transistor, formed in an active area having a body region with a second conductivity type.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 17, 2016
    Inventors: Angelo Magrí, Giacomo Barletta
  • Publication number: 20150349052
    Abstract: An embodiment of a structure for a high voltage device of the type which comprises at least a semiconductor substrate being covered by an epitaxial layer of a first type of conductivity, wherein a plurality of column structures are realized, which column structures comprises high aspect ratio deep trenches, said epitaxial layer being in turn covered by an active surface area wherein said high voltage device is realized, each of the column structures comprising at least an external portion being in turn realized by a silicon epitaxial layer of a second type of conductivity, opposed than said first type of conductivity and having a dopant charge which counterbalances the dopant charge being in said epitaxial layer outside said column structures, as well as a dielectric filling portion which is realized inside said external portion in order to completely fill said deep trench.
    Type: Application
    Filed: August 12, 2015
    Publication date: December 3, 2015
    Inventors: Mario Giuseppe SAGGIO, Domenico MURABITO, Angelo MAGRI'
  • Patent number: 9142646
    Abstract: An embodiment of an integrated electronic device formed in a semiconductor body delimited by a lateral surface, which includes: a substrate made of a first semiconductor material; a first epitaxial region made of a second semiconductor material, which overlies the substrate and defines a first surface; a second epitaxial region made of a third semiconductor material, which overlies the first surface and is in contact with the first epitaxial region, the third semiconductor material having a bandgap narrower than the bandgap of the second semiconductor material; an active area, extending within the second epitaxial region and housing at least one elementary electronic component; and an edge structure, arranged between the active area and the lateral surface, and including a dielectric region arranged laterally with respect to the second epitaxial region, which overlies the first surface and is in contact with the first epitaxial region.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: September 22, 2015
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Ferruccio Frisina, Angelo Magri′, Mario Giuseppe Saggio
  • Publication number: 20150214300
    Abstract: An electronic device is integrated on a chip of semiconductor material having a main surface and a substrate region with a first type of conductivity. The electronic device has a vertical MOS transistor, formed in an active area having a body region with a second conductivity type.
    Type: Application
    Filed: January 29, 2015
    Publication date: July 30, 2015
    Inventors: Giacomo BARLETTA, Angelo MAGRÍ
  • Publication number: 20150187912
    Abstract: An embodiment of an integrated electronic device formed in a semiconductor body delimited by a lateral surface, which includes: a substrate made of a first semiconductor material; a first epitaxial region made of a second semiconductor material, which overlies the substrate and defines a first surface; a second epitaxial region made of a third semiconductor material, which overlies the first surface and is in contact with the first epitaxial region, the third semiconductor material having a bandgap narrower than the bandgap of the second semiconductor material; an active area, extending within the second epitaxial region and housing at least one elementary electronic component; and an edge structure, arranged between the active area and the lateral surface, and including a dielectric region arranged laterally with respect to the second epitaxial region, which overlies the first surface and is in contact with the first epitaxial region.
    Type: Application
    Filed: March 11, 2015
    Publication date: July 2, 2015
    Inventors: FERRUCCIO FRISINA, ANGELO MAGRI', MARIO GIUSEPPE SAGGIO
  • Patent number: 9070694
    Abstract: A method for integrating a set of electronic devices on a wafer (100; 200a; 200b) of semiconductor material having a main surface includes forming a plurality of trenches extending into the wafer from the main surface. At least one layer of electrically insulating material is formed within each trench. At least one layer of electrically conductive material is formed within each trench superimposed on the at least one layer of insulating material. The formation of the plurality of trenches includes forming the trenches partitioned into sub-sets of trenches. The trenches of a first sub-set are oriented along a first common direction that is different from the orientation of the trenches of a second sub-set.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: June 30, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Angelo Magri′, Francesco Lizio
  • Patent number: 9018635
    Abstract: An embodiment of an integrated electronic device formed in a semiconductor body delimited by a lateral surface, which includes: a substrate made of a first semiconductor material; a first epitaxial region made of a second semiconductor material, which overlies the substrate and defines a first surface; a second epitaxial region made of a third semiconductor material, which overlies the first surface and is in contact with the first epitaxial region, the third semiconductor material having a bandgap narrower than the bandgap of the second semiconductor material; an active area, extending within the second epitaxial region and housing at least one elementary electronic component; and an edge structure, arranged between the active area and the lateral surface, and including a dielectric region arranged laterally with respect to the second epitaxial region, which overlies the first surface and is in contact with the first epitaxial region.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: April 28, 2015
    Assignee: STMicroelectronics S.R.L.
    Inventors: Ferruccio Frisina, Angelo Magri', Mario Giuseppe Saggio
  • Patent number: 8921211
    Abstract: An embodiment of a vertical-conduction integrated electronic device formed in a body of semiconductor material which includes: a substrate made of a first semiconductor material and with a first type of conductivity, the first semiconductor material having a first bandgap; an epitaxial region made of the first semiconductor material and with the first type of conductivity, which overlies the substrate and defines a first surface; and a first epitaxial layer made of a second semiconductor material, which overlies the first surface and is in direct contact with the epitaxial region, the second semiconductor material having a second bandgap narrower than the first bandgap. The body moreover includes a deep region of a second type of conductivity, extending underneath the first surface and within the epitaxial region.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: December 30, 2014
    Assignee: STMicroelectronics S.R.L.
    Inventors: Ferruccio Frisina, Mario Giuseppe Saggio, Angelo Magri′
  • Patent number: 8895370
    Abstract: A vertical conduction power device includes respective gate, source and drain areas formed in an epitaxial layer on a semiconductor substrate. The respective gate, source and drain metallizations are formed by a first metallization level. The gate, source and drain terminals are formed by a second metallization level. The device is configured as a set of modular areas extending parallel to each other. Each modular area has a rectangular elongate source area perimetrically surrounded by a gate area, and a drain area defined by first and second regions. The first regions of the drain extend parallel to one another and separate adjacent modular areas. The second regions of the drain area extend parallel to one another and contact ends of the first regions of the drain area.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 25, 2014
    Assignee: STMicroelectronics S.R.L.
    Inventors: Ferruccio Frisina, Giuseppe Ferla, Angelo Magri′