Patents by Inventor Sebastiano Ravesi

Sebastiano Ravesi 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: 11594667
    Abstract: In one embodiment, a method includes forming a plurality of thermocouples coupled in series by forming first metal segments comprising a first metal, each of the first metal segments having a L-shape. The method further includes forming a plurality of deep openings to expose a first contact region of each of the first metal segments, and forming a plurality of shallow openings to expose a second contact region of each of the first metal segments. The method further includes forming second metal segments comprising a second metal over the dielectric layer. The second metal is a different type of metal than the first metal. Each of the second metal segments contacts one of the first contact region of the first metal segments through one of the plurality of deep openings and contacts one of the second contact region of the first metal segments through one of the plurality of shallow openings. The plurality of thermocouples is formed within a building component.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: February 28, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Sebastiano Ravesi, Giovanni Abagnale
  • Publication number: 20220199846
    Abstract: A photovoltaic cell may include a hydrogenated amorphous silicon layer including a n-type doped region and a p-type doped region. The n-type doped region may be separated from the p-type doped region by an intrinsic region. The photovoltaic cell may include a front transparent electrode connected to the n-type doped region, and a rear electrode connected to the p-type doped region. The efficiency may be optimized for indoor lighting values by tuning the value of the H2/SiH4 ratio of the hydrogenated amorphous silicon layer.
    Type: Application
    Filed: February 3, 2022
    Publication date: June 23, 2022
    Inventors: Cosimo Gerardi, Cristina Tringali, Sebastiano Ravesi, Marina Foti, NoemiGraziana Sparta', Corrado Accardi, Stella Loverso
  • Patent number: 11257975
    Abstract: A photovoltaic cell may include a hydrogenated amorphous silicon layer including a n-type doped region and a p-type doped region. The n-type doped region may be separated from the p-type doped region by an intrinsic region. The photovoltaic cell may include a front transparent electrode connected to the n-type doped region, and a rear electrode connected to the p-type doped region. The efficiency may be optimized for indoor lighting values by tuning the value of the H2/SiH4 ratio of the hydrogenated amorphous silicon layer.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: February 22, 2022
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Cosimo Gerardi, Cristina Tringali, Sebastiano Ravesi, Marina Foti, NoemiGraziana Sparta', Corrado Accardi, Stella Loverso
  • Patent number: 10910510
    Abstract: The disclosure relates to an encapsulated flexible electronic device comprising a flexible electronic device, wherein the flexible electronic device is protected by a protective coating layer, a first cover sheet and a second cover sheet being made of patterned and developed dry photoresist films. The encapsulated flexible electronic device may be used to directly realize different type of electronic devices, such as smart sensor devices.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 2, 2021
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Corrado Accardi, Stella Loverso, Sebastiano Ravesi, Noemi Graziana Sparta
  • Publication number: 20200161528
    Abstract: In one embodiment, a method includes forming a plurality of thermocouples coupled in series by forming first metal segments comprising a first metal, each of the first metal segments having a L-shape. The method further includes forming a plurality of deep openings to expose a first contact region of each of the first metal segments, and forming a plurality of shallow openings to expose a second contact region of each of the first metal segments. The method further includes forming second metal segments comprising a second metal over the dielectric layer. The second metal is a different type of metal than the first metal. Each of the second metal segments contacts one of the first contact region of the first metal segments through one of the plurality of deep openings and contacts one of the second contact region of the first metal segments through one of the plurality of shallow openings. The plurality of thermocouples is formed within a building component.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 21, 2020
    Inventors: Sebastiano Ravesi, Giovanni Abagnale
  • Patent number: 10510941
    Abstract: An embodiment of a process for realizing a system for recovering heat is described, the process comprising the steps of: formation on a substrate of a plurality of L-shaped down metal structures; deposition of a dielectric layer on the substrate and the plurality of L-shaped down metal structures by using a screen printing approach; definition and opening in the dielectric layer of upper contacts and lower contacts of the L-shaped down metal structures; formation of a plurality of L-shaped up metal structures being connected to the plurality of L-shaped down metal structure in correspondence of the upper and lower contacts so as to form a plurality of serially connected thermocouples, each comprising at least one L-shaped down metal structure and at least one L-shaped up metal structure, being made of different metal materials and interconnected at a junction, the serially connected thermocouples thus realizing the system for recovering heat.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: December 17, 2019
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Giovanni Abagnale, Sebastiano Ravesi
  • Publication number: 20190172961
    Abstract: Solar thin film modules are provided with reduced lateral dimensions of isolation trenches and contact trenches, which provide for a series connection of the individual solar cells. To this end lithography and etch techniques are applied to pattern the individual material layers, thereby reducing parasitic shunt leakages compared to conventional laser scribing techniques. In particular, there may be series connected solar cells formed on a flexible substrate material that are highly efficient in indoor applications.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 6, 2019
    Inventors: Marina Foti, Cosimo Gerardi, Salvatore Lombardo, Sebastiano Ravesi, NoemiGraziana Sparta', Silvestra Dimarco
  • Patent number: 10256356
    Abstract: Solar thin film modules are provided with reduced lateral dimensions of isolation trenches and contact trenches, which provide for a series connection of the individual solar cells. To this end lithography and etch techniques are applied to pattern the individual material layers, thereby reducing parasitic shunt leakages compared to conventional laser scribing techniques. In particular, there may be series connected solar cells formed on a flexible substrate material that are highly efficient in indoor applications.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 9, 2019
    Assignee: STMicroelectronics S.r.l.
    Inventors: Marina Foti, Noemi Graziana Sparta′, Salvatore Lombardo, Silvestra DiMarco, Sebastiano Ravesi, Cosimo Gerardi
  • Publication number: 20190097074
    Abstract: A photovoltaic cell may include a hydrogenated amorphous silicon layer including a n-type doped region and a p-type doped region. The n-type doped region may be separated from the p-type doped region by an intrinsic region. The photovoltaic cell may include a front transparent electrode connected to the n-type doped region, and a rear electrode connected to the p-type doped region. The efficiency may be optimized for indoor lighting values by tuning the value of the H2/SiH4 ratio of the hydrogenated amorphous silicon layer.
    Type: Application
    Filed: October 23, 2018
    Publication date: March 28, 2019
    Inventors: Cosimo Gerardi, Cristina Tringali, Sebastiano Ravesi, Marina Foti, NoemiGraziana Sparta', Corrado Accardi, Stella Loverso
  • Patent number: 10128396
    Abstract: A photovoltaic cell may include a hydrogenated amorphous silicon layer including a n-type doped region and a p-type doped region. The n-type doped region may be separated from the p-type doped region by an intrinsic region. The photovoltaic cell may include a front transparent electrode connected to the n-type doped region, and a rear electrode connected to the p-type doped region. The efficiency may be optimized for indoor lighting values by tuning the value of the H2/SiH4 ratio of the hydrogenated amorphous silicon layer.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: November 13, 2018
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Cosimo Gerardi, Cristina Tringali, Sebastiano Ravesi, Marina Foti, NoemiGraziana Sparta′, Corrado Accardi, Stella Loverso
  • Patent number: 10103281
    Abstract: A thin film amorphous silicon solar cell may have front contact between a hydrogenated amorphous silicon layer and a transparent conductive oxide layer. The cell may include a layer of a refractory metal, chosen among the group composed of molybdenum, tungsten, tantalum and titanium, of thickness adapted to ensure a light transmittance of at least 80%, interposed therebetween, before growing by PECVD a hydrogenated amorphous silicon p-i-n light absorption layer over it. A refractory metal layer of just about 1 nm thickness may effectively shield the oxide from the reactive plasma, thereby preventing a diffused defect when forming the p.i.n. layer that would favor recombination of light-generated charge carriers.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: October 16, 2018
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Salvatore Lombardo, Cosimo Gerardi, Sebastiano Ravesi, Marina Foti, Cristina Tringali, Stella Loverso, Nicola Costa
  • Patent number: 9797860
    Abstract: A manufacturing method of an electrochemical sensor comprises forming a graphene layer on a donor substrate, laminating a film of dry photoresist on the graphene layer, removing the donor substrate to obtain an intermediate structure comprising the film of dry photoresist and the graphene layer, and laminating the intermediate structure onto a final substrate with the graphene layer in electrical contact with first and second electrodes positioned on the final substrate. The film of dry photoresist is then patterned to form a microfluidic structure on the graphene layer and an additional dry photoresist layer is laminated over the structure. In one type of sensor manufactured by this process, the graphene layer acts as a channel region of a field-effect transistor, whose conductive properties vary according to characteristics of an analyte introduced into the microfluidic structure.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: October 24, 2017
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Corrado Accardi, Stella Loverso, Sebastiano Ravesi, Noemi Graziana Sparta
  • Patent number: 9476852
    Abstract: A manufacturing method of an electrochemical sensor comprises forming a graphene layer on a donor substrate, laminating a film of dry photoresist on the graphene layer, removing the donor substrate to obtain an intermediate structure comprising the film of dry photoresist and the graphene layer, and laminating the intermediate structure onto a final substrate with the graphene layer in electrical contact with first and second electrodes positioned on the final substrate. The film of dry photoresist is then patterned to form a microfluidic structure on the graphene layer and an additional dry photoresist layer is laminated over the structure. In one type of sensor manufactured by this process, the graphene layer acts as a channel region of a field-effect transistor, whose conductive properties vary according to characteristics of an analyte introduced into the microfluidic structure.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: October 25, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Corrado Accardi, Stella Loverso, Sebastiano Ravesi, Noemi Graziana Sparta
  • Patent number: 9331151
    Abstract: The present disclosure regards a method for coupling a graphene layer to a substrate having at least one hydrophilic surface, the method comprising the steps of providing the substrate having at least one hydrophilic surface, depositing on the hydrophilic surface a layer of a solvent selected in the group constituted by acetone, ethyl lactate, isopropyl alcohol, methylethyl ketone and mixtures thereof and depositing on the solvent layer a graphene layer. It moreover regards an electronic device comprising the graphene/substrate structure obtained.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 3, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventors: Sebastiano Ravesi, Corrado Accardi, Cristina Tringali, Noemi Graziana Sparta′, Stella Loverso, Filippo Giannazzo
  • Publication number: 20160116432
    Abstract: A manufacturing method of an electrochemical sensor comprises forming a graphene layer on a donor substrate, laminating a film of dry photoresist on the graphene layer, removing the donor substrate to obtain an intermediate structure comprising the film of dry photoresist and the graphene layer, and laminating the intermediate structure onto a final substrate with the graphene layer in electrical contact with first and second electrodes positioned on the final substrate. The film of dry photoresist is then patterned to form a microfluidic structure on the graphene layer and an additional dry photoresist layer is laminated over the structure. In one type of sensor manufactured by this process, the graphene layer acts as a channel region of a field-effect transistor, whose conductive properties vary according to characteristics of an analyte introduced into the microfluidic structure.
    Type: Application
    Filed: December 31, 2015
    Publication date: April 28, 2016
    Inventors: Corrado ACCARDI, Stella LOVERSO, Sebastiano RAVESI, Noemi Graziana SPARTA
  • Publication number: 20160116431
    Abstract: A manufacturing method of an electrochemical sensor comprises forming a graphene layer on a donor substrate, laminating a film of dry photoresist on the graphene layer, removing the donor substrate to obtain an intermediate structure comprising the film of dry photoresist and the graphene layer, and laminating the intermediate structure onto a final substrate with the graphene layer in electrical contact with first and second electrodes positioned on the final substrate. The film of dry photoresist is then patterned to form a microfluidic structure on the graphene layer and an additional dry photoresist layer is laminated over the structure. In one type of sensor manufactured by this process, the graphene layer acts as a channel region of a field-effect transistor, whose conductive properties vary according to characteristics of an analyte introduced into the microfluidic structure.
    Type: Application
    Filed: December 31, 2015
    Publication date: April 28, 2016
    Inventors: Corrado ACCARDI, Stella LOVERSO, Sebastiano RAVESI, Noemi Graziana SPARTA
  • Patent number: 9324825
    Abstract: A manufacturing method of an electrochemical sensor comprises forming a graphene layer on a donor substrate, laminating a film of dry photoresist on the graphene layer, removing the donor substrate to obtain an intermediate structure comprising the film of dry photoresist and the graphene layer, and laminating the intermediate structure onto a final substrate with the graphene layer in electrical contact with first and second electrodes positioned on the final substrate. The film of dry photoresist is then patterned to form a microfluidic structure on the graphene layer and an additional dry photoresist layer is laminated over the structure. In one type of sensor manufactured by this process, the graphene layer acts as a channel region of a field-effect transistor, whose conductive properties vary according to characteristics of an analyte introduced into the microfluidic structure.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 26, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Corrado Accardi, Stella Loverso, Sebastiano Ravesi, Noemi Graziana Sparta
  • Publication number: 20160111588
    Abstract: The disclosure relates to an encapsulated flexible electronic device comprising a flexible electronic device, wherein the flexible electronic device is protected by a protective coating layer, a first cover sheet and a second cover sheet being made of patterned and developed dry photoresist films. The encapsulated flexible electronic device may be used to directly realize different type of electronic devices, such as smart sensor devices.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Inventors: Corrado ACCARDI, Stella LOVERSO, Sebastiano RAVESI, Noemi Graziana SPARTA
  • Publication number: 20160079457
    Abstract: Solar thin film modules are provided with reduced lateral dimensions of isolation trenches and contact trenches, which provide for a series connection of the individual solar cells. To this end lithography and etch techniques are applied to pattern the individual material layers, thereby reducing parasitic shunt leakages compared to conventional laser scribing techniques. In particular, there may be series connected solar cells formed on a flexible substrate material that are highly efficient in indoor applications.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 17, 2016
    Inventors: MARINA FOTI, NOEMI GRAZIANA SPARTA', SALVATORE LOMBARDO, SILVESTRA DIMARCO, SEBASTIANO RAVESI, COSIMO GERARDI
  • Publication number: 20160079453
    Abstract: A thin film amorphous silicon solar cell may have front contact between a hydrogenated amorphous silicon layer and a transparent conductive oxide layer. The cell may include a layer of a refractory metal, chosen among the group composed of molybdenum, tungsten, tantalum and titanium, of thickness adapted to ensure a light transmittance of at least 80%, interposed therebetween, before growing by PECVD a hydrogenated amorphous silicon p-i-n light absorption layer over it. A refractory metal layer of just about 1 nm thickness may effectively shield the oxide from the reactive plasma, thereby preventing a diffused defect when forming the p.i.n. layer that would favor recombination of light-generated charge carriers.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 17, 2016
    Inventors: SALVATORE LOMBARDO, COSIMO GERARDI, SEBASTIANO RAVESI, MARINA FOTI, CRISTINA TRINGALI, STELLA LOVERSO, NICOLA COSTA