Patents by Inventor Cristiano Gianluca STELLA

Cristiano Gianluca STELLA 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: 20190326208
    Abstract: A power semiconductor device including a first and second die, each including a plurality of conductive contact regions and a passivation region including a number of projecting dielectric regions and a number of windows. Adjacent windows are separated by a corresponding projecting dielectric region with each conductive contact region arranged within a corresponding window. A package of the surface mount type houses the first and second dice. The package includes a first bottom insulation multilayer and a second bottom insulation multilayer carrying, respectively, the first and second dice. A covering metal layer is arranged on top of the first and second dice and includes projecting metal regions extending into the windows to couple electrically with corresponding conductive contact regions. The covering metal layer moreover forms a number of cavities, which are interposed between the projecting metal regions so as to overlie corresponding projecting dielectric regions.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 24, 2019
    Inventors: Cristiano Gianluca Stella, Agatino Minotti
  • Publication number: 20190311976
    Abstract: A semiconductor power device has: a die, with a front surface and a rear surface, and with an arrangement of projecting regions on the front surface, which define between them windows arranged within which are contact regions; and a package, which houses the die inside it. A metal frame has a top surface and a bottom surface; the die is carried by the frame on the top surface; an encapsulation coating coats the frame and the die. A first insulation multilayer is arranged above the die and is formed by an upper metal layer, a lower metal layer, and an intermediate insulating layer; the lower metal layer is shaped according to an arrangement of the projecting regions and has contact projections, which extend so as to electrically contact the contact regions, and insulation regions, interposed between the contact projections, in positions corresponding to the projecting regions.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 10, 2019
    Inventors: Francesco SALAMONE, Cristiano Gianluca STELLA
  • Publication number: 20190221500
    Abstract: A packaged device, having a package, including a first dissipative region, a second dissipative region, a first connection element and a second connection element. A die of semiconductor material is arranged within the package, carried by the first dissipative region. The first and second dissipative regions extend at a distance from each other, and the first and second connection elements extend at a distance from each other between the first and second dissipative regions. The first dissipative region, the second dissipative region, the first connection element, and the second connection element are hollow and form a circuit containing a cooling liquid.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 18, 2019
    Inventors: Cristiano Gianluca STELLA, Francesco SALAMONE
  • Publication number: 20190109225
    Abstract: A MOSFET device is integrated in a body of semiconductor material of a first conductivity type accommodating a body region, of a second conductivity type, and a source region, of the first conductivity type. A gate region extends over the top surface of the body; a source pad extends over the first top surface and is electrically coupled to the source region, a first gate pad extends over the first main surface, alongside the source pad, and is electrically coupled to the gate region; a drain pad extends over the rear surface and is electrically coupled to the body; a second gate pad extends over the rear surface, alongside the drain pad; and a conductive via extends through the body and electrically couples the gate region to the second gate pad.
    Type: Application
    Filed: October 8, 2018
    Publication date: April 11, 2019
    Inventors: Fabio RUSSO, Cristiano Gianluca STELLA
  • Patent number: 9882595
    Abstract: A system includes a housing for a portable electronic device and a housing dedicated to house a winding mechanism for an earphone cable. The winding mechanism comprises a hollow base element, a cover element, a central sliding element, a spring, and a groove. The base element centrally includes a protrusion and the cover element has a base with a central hole corresponding to the protrusion and configured to allow exit of a first portion of the cable. The sliding element allows sliding of the cable and includes a base with a central hole between the base element and the covering element to form a pocket in which second and third portions of the cable are wrapped. The second portion is wrapped around the edge of the sliding element and the third portion is fixed inside the sliding element between a first hole and a second hole in the groove.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 30, 2018
    Inventors: Andrea Tranchida, Cristiano Gianluca Stella
  • Patent number: 9786516
    Abstract: An electronic device includes at least one chip and an insulating body embedding the chip. The electronic device further includes a heat-sink in contact with the chip. The heat-sink includes a plate having a first thickness. A recess is provided in the plate that defines a central portion of the plate having a second thickness less than the first thickness. The chip is mounted to the central region of the heat-sink within the recess. The insulating body includes a surface, such as a mounting surface, including an opening exposing at least a portion of the heat-sink. The device may further include a reophore extending through a side surface of the insulating body, that reophore being in contact with the heat sink.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 10, 2017
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Agatino Minotti, Cristiano Gianluca Stella
  • Patent number: 9615444
    Abstract: An electronic device is attached to a first surface of a board which includes vias. A heat sink precursor for the electronic device is attached to the second surface of the electronic board. The heat sink precursor includes a cavity facing the vias. A wave of solder is applied to the second surface. The solder penetrates into the cavity of the heat sink precursor and flows by capillary action through the vias to join a thermal radiator and/or electronic contact of the electronic device to the vias. The solder further remains in the cavity to form a corresponding heat sink.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: April 4, 2017
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Giuseppe Luigi Malgioglio, Rosalba Cacciola
  • Publication number: 20160079092
    Abstract: An electronic device includes at least one chip and an insulating body embedding the chip. The electronic device further includes a heat-sink in contact with the chip. The heat-sink includes a plate having a first thickness. A recess is provided in the plate that defines a central portion of the plate having a second thickness less than the first thickness. The chip is mounted to the central region of the heat-sink within the recess. The insulating body includes a surface, such as a mounting surface, including an opening exposing at least a portion of the heat-sink. The device may further include a reophore extending through a side surface of the insulating body, that reophore being in contact with the heat sink.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Agatino Minotti, Cristiano Gianluca Stella
  • Publication number: 20160081179
    Abstract: An electronic device is attached to a first surface of a board which includes vias. A heat sink precursor for the electronic device is attached to the second surface of the electronic board. The heat sink precursor includes a cavity facing the vias. A wave of solder paste is applied to the second surface. The solder paste penetrates into the cavity of the heat sink precursor and flows by capillary action through the vias to weld a thermal radiator and/or electronic contact of the electronic device to the vias. The solder paste further remains in the cavity to form a corresponding heat sink.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Applicant: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Giuseppe Luigi Malgioglio, Rosalba Cacciola
  • Patent number: 9275943
    Abstract: An electronic device includes at least one chip and an insulating body embedding the chip. The electronic device further includes a heat-sink in contact with the chip. The heat-sink includes a plate having a first thickness. A recess is provided in the plate that defines a central portion of the plate having a second thickness less than the first thickness. The chip is mounted to the central region of the heat-sink within the recess. The insulating body includes a surface, such as a mounting surface, including an opening exposing at least a portion of the heat-sink. The device may further include a reophore extending through a side surface of the insulating body, that reophore being in contact with the heat sink.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: March 1, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Agatino Carmelo Minotti
  • Patent number: 9237644
    Abstract: An electronic device is attached to a first surface of a board which includes vias. A heat sink precursor for the electronic device is attached to the second surface of the electronic board. The heat sink precursor includes a cavity facing the vias. A wave of solder paste is applied to the second surface. The solder paste penetrates into the cavity of the heat sink precursor and flows by capillary action through the vias to weld a thermal radiator and/or electronic contact of the electronic device to the vias. The solder paste further remains in the cavity to form a corresponding heat sink.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: January 12, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Rosalba Cacciola, Giuseppe Luigi Malgioglio
  • Patent number: 9202766
    Abstract: A power device includes a chip of semiconductor material and a further chip of semiconductor material on each of which at least one power transistor is integrated; each chip comprises a first conduction terminal on a first surface, and a second conduction terminal and a control terminal on a second surface opposite the first surface, and an insulating body embedding said chip and said further chip. In the solution according to one or more embodiments of the present disclosure, the first surface of said chip faces the second surface of said further chip, and the power device further comprises a first heat-sink arranged between said chip and said further chip and electrically coupled with the first conduction terminal of said chip and with the second conduction terminal of said further chip, the control terminal of said further chip being electrically insulated from the first heat-sink.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: December 1, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Gaetano Pignataro, Maurizio Maria Ferrara
  • Patent number: 9159644
    Abstract: A DSC type device manufacturing process includes placing a circuit assembly in a mold. The circuit assembly includes a first heat sink, a semiconductor chip mounted on the first heat sink, a second heat sink mounted on the semiconductor chip and a pin block electrically connected to the semiconductor chip. An outer surface of the first heat sink and an outer surface of the pin block are placed in contact with a first inner surface of the mold. A spacer insert is placed in contact with, and positioned between, a second inner surface of the mold and an outer surface of the second heat sink. The mold is filled with an insulating material that is subsequently hardened. After hardening, a resulting device is extracted from the mold with the outer surfaces of the first heat sink, the pin block and the second heat sink exposed.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: October 13, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Tommaso Casabianca, Cristiano Gianluca Stella
  • Patent number: 9125322
    Abstract: An electronic system includes an electronic device of through-hole mounting type comprising an insulating body for embedding at least a chip on which electronic components are integrated, a plurality of conductive leads projecting from the insulating body for said mounting, and a dissipation plate exposed from the insulating body for transferring heat from said electronic component in operation towards the outside of the insulating body. The electronic system includes a heat sink in contact with said dissipation plate for dissipating said heat. The heat sink comprises a first dissipation element, a second dissipation element, and clamping means for clamping the first dissipation element and the second dissipation element together against the insulating body of said electronic device.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 1, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventor: Cristiano Gianluca Stella
  • Publication number: 20150236745
    Abstract: A system includes a housing for a portable electronic device and a housing dedicated to house a winding mechanism for an earphone cable. The winding mechanism comprises a hollow base element, a cover element, a central sliding element, a spring, and a groove. The base element centrally includes a protrusion and the cover element has a base with a central hole corresponding to the protrusion and configured to allow exit of a first portion of the cable. The sliding element allows sliding of the cable and includes a base with a central hole between the base element and the covering element to form a pocket in which second and third portions of the cable are wrapped. The second portion is wrapped around the edge of the sliding element and the third portion is fixed inside the sliding element between a first hole and a second hole in the groove.
    Type: Application
    Filed: September 20, 2013
    Publication date: August 20, 2015
    Inventors: Andrea TRANCHIDA, Cristiano Gianluca STELLA
  • Patent number: 9105598
    Abstract: An insulating body embeds an integrated circuit and has a mounting surface, an opposite free surface, and at least one pin exposed along an edge of the mounting surface and electrically connected to a terminal of the integrated circuit. A heatsink configured to dissipate heat produced by the integrated circuit is provided in correspondence of the free surface. The heatsink includes at least one protruding element including a connection portion partly extending in contact with the free surface and partly protruding beyond a boundary of the free surface (the connection portion having a free end being distal from the insulating body), and a mounting portion extending from the free end at least up to a plane of the mounting surface. The heatsink is further electrically connected to a terminal of the integrated circuit chip. The protruding element is placed in correspondence of the at least one pin.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: August 11, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Concetto Privitera
  • Patent number: 9013878
    Abstract: An electronic system includes an insulating structural element with a coupling surface configured for coupling the electronic system with at least one further electronic system. The electronic system further includes at least one conducting contact element at least partially exposed on the coupling surface. Each conducting contact element has a soldering surface supporting reflow soldering of the conducting contact element with a corresponding further contact element of the further electronic system. In addition, each conducting contact element has at least one lateral surface protruding from the insulating structural element. The soldering surface of the conducting contact element includes at least one channel having an opened end at the protruding lateral surface, the channel configured to facilitate dispersion of waste gas produced during reflow soldering.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: April 21, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Matteo Sebastiano Dimauro, Sebastiano Russo, Rosalba Cacciola, Cristiano Gianluca Stella
  • Patent number: 9012787
    Abstract: An electronic board includes conducting traces having an upper surface at least partially sunken with respect to a gluing surface of the board. A surface mount technology electronic device for mounting to the board includes insulating windows that define gluing sites within one or more pins. An electronic system is formed by one or more of such surface mount technology electronic devices mounted to electronic board. The devices are attached using a wave soldering technique that flows through channels formed by the sunken conductive traces.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: April 21, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Rosalba Cacciola
  • Patent number: 8963303
    Abstract: A device includes a first and second transistors integrated in first and second chips. Each chip has opposed rear and front surfaces, and further has a first conduction terminal and a control terminal on the front surface and a second conduction terminal on the rear surface. The first and second transistors are electrically connected in series by having the first conduction terminals of the first and second transistors be electrically connected. The device includes a common package enclosing the first and second chips, the common package having an insulating body with a mounting surface. A heat sink is also enclosed within the insulating body, the heat sink making electrical contact with the first conduction terminals of the first and second chips on the respective front surfaces, so that the first conduction terminals are electrically connected together through the heat sink.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: February 24, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Fabio Criscione, Gaetano Pignataro
  • Patent number: 8890313
    Abstract: An electronic device includes a first chip and a second chip, where each chip has a first conduction terminal on a first surface and a second conduction terminal on a second surface. An insulating body surrounds the first and second chip, a first heat-sink coupled with the first conduction terminals of the first and second chip, and a second heat-sink coupled with the second conduction terminals of the first and second chip. A portion of the first heat-sink and/or the second heat-sink being exposed from the insulating body. The electronic device includes a first conductive lead and a second conductive lead exposed from the insulating body for through-hole mounting of the electronic device on an electronic board, the first conductive lead being coupled with the first heat-sink and the second conductive lead being coupled with the second heat-sink.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: November 18, 2014
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Gaetano Pignataro, Maurizio Maria Ferrara