Patents by Inventor Elvira Maria Correia Fortunato

Elvira Maria Correia Fortunato 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: 11360044
    Abstract: The present invention concerns a sensitive field effect device (100) comprising a semiconductor channel (110), a source electrode (120) connected to said semiconductor channel (110), a drain electrode (130) connected to said semiconductor channel (110), such that said semiconductor channel (110) is interposed between said source electrode (120) and said drain electrode (130), a gate electrode (140) and a dielectric layer (150) interposed between said gate electrode (140) and said semiconductor channel (110), characterized in that said semiconductor channel (110) is a layer and is made of an amorphous oxide and in that said sensor means (170, 171, 172, 173, 174, 175, 175) are configured to change the voltage between said gate electrode (140) and said source electrode (120) upon a sensing event capable of changing their electrical state. The present invention also concerns a sensor and a method for manufacturing said field effect device (100).
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 14, 2022
    Assignees: Universidade Nova de Lisboa, Alma Mater Studiorum—Universita di' Bologna
    Inventors: Rodrigo Ferräo De Paiva Martins, Pedro Miguel Cândido Barquinha, Elvira Maria Correia Fortunato, Tobias Cramer, Beatrice Fraboni
  • Patent number: 10689808
    Abstract: The present invention refers to the use and creation of materials based on natural cellulose fibbers, synthetic fibbers, or mixed fibbers as physical support and storing medium or storage inducer of electrical and ionic charges in self-sustaining discrete or complementary field-effect transistors with non-volatile memory by using organic or inorganic active semiconductors for the manufacture of the channel regions that are deposited on the fibbers of the paper material as well as metals or passive semiconductors for manufacturing drain and source allowing the interconnection of fibbers, in addition to the gate electrode contact existing on the other side-face of the paper, p or n type respectively, in monolithic or hybrid forms.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: June 23, 2020
    Assignee: FACULDADE DE CIÊNCIAS E TECNOLOGIA DA UNIVERSIDADE NOVA DE LISBOA
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato, Luís Miguel Nunes Pereira, Pedro Miguel Cândido Barquinha, Nuno Filipe De Oliveira Correia
  • Publication number: 20190277798
    Abstract: The present invention concerns a sensitive field effect device (100) comprising a semiconductor channel (110), a source electrode (120) connected to said semiconductor channel (110), a drain electrode (130) connected to said semiconductor channel (110), such that said semiconductor channel (110) is interposed between said source electrode (120) and said drain electrode (130), a gate electrode (140) and a dielectric layer (150) interposed between said gate electrode (140) and said semiconductor channel (110), characterized in that said semiconductor channel (110) is a layer and is made of an amorphous oxide and in that said sensor means (170, 171, 172, 173, 174, 175, 175) are configured to change the voltage between said gate electrode (140) and said source electrode (120) upon a sensing event capable of changing their electrical state. The present invention also concerns a sensor and a method for manufacturing said field effect device (100).
    Type: Application
    Filed: March 14, 2017
    Publication date: September 12, 2019
    Inventors: Rodrigo FERRÃO DE PAIVA MARTINS, Pedro Miguel Candido BARQUINHA, Elvira Maria CORREIA FORTUNATO, Tobias CRAMER, Beatrice FRABONI
  • Patent number: 9343609
    Abstract: The invention illustrates an innovative way to fabricate low cost, efficient, rigid or flexible mesoscopic optoelectronic devices such as photovoltaic (PV) solar cells or photo sensors (b) comprising three-dimensional arrays of semi-conductive micro- or nano-pillars (3b) deposited from suspensions e.g. by inkjet printing. Said pillars additionally increase the surface area of the device composed of an interpenetrating network of semiconductor particles of mesoscopic (2-50 nm) size forming junctions. In the present invention the active surface area is significantly increased when compared to previous flat structures (a, 3a), being fabricated preferably by inkjet patterning. Additionally, the invention allows for production of much more functional devices when compared with conventional mesoscopic PV cells due to smaller structure density what makes the layer more resistive to mechanical failure when bending.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 17, 2016
    Assignee: FACULDADE DE CIENCIAS E TECNOLOGIA DA UNIVERSIDADE NOVA DE LISBOA
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato, Pawel Jerzy Wojcik
  • Patent number: 9196689
    Abstract: The present invention relates to thin films comprising non-stoichiometric monoxides of: copper (OCu2)x with embedded cubic metal copper (Cucy) [(OCu2)x+(Cu1-2)y, wherein 0.05?x<1 and 0.01?y?0.9]; of tin (OSn)?x with embedded metal tin (Sn?x) [(OSn)z+(Sn1-2)w wherein 0.05?z<1 and 0.01?w?0.9]; Cucx—Sn?x alloys with embedded metal Sn and Cu [(O—Cu—Sn)a+(Cu?—Sn?)b with 0<?<2 and 0<?<2, wherein 0.05?a<1 and 0.01?b?0.9]; and of nickel (ONi)x with embedded Ni and Sn species [(O—Ni)a+(Ni?—Sn?)b with 0<?<2 and 0<?<2, wherein 0.05?a<1 and 0.01?b?0.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: November 24, 2015
    Assignees: FACULDADE DE CIENCIAS E TECHNOLOGIA DA UNIVERSIDADE NOVA DE LISBOA, ELECTRONIC AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Elvira Maria Correia Fortunato, Rodrigo Ferrão De Paiva Martins, Ana Raquel Xarouco De Barros, Nuno Filipe De Oliveira Correia, Vitor Manuel Loureiro Figueiredo, Pedro Miguel Cândido Barquinha, Sang-Hee Ko Park, Chi-Sun Hwang
  • Patent number: 8987097
    Abstract: High performance thin-film, transistors are entirely processed at temperatures not exceeding 150° C., using amorphous multi component dielectrics based on the mixture of high band gap and high dielectric constant (K) materials. The sputtered or ink jet printed mixed dielectric materials such as Ta2O5 with SiO2 or Al2O3 or HfO2 with SiO2 or Al2O3 are used. These multicomponent dielectrics allow producing amorphous dielectrics to be introduced in high stable electronic devices with low leakage currents, while preserving a high dielectric constant. This results in producing thin film transistors with remarkable electrical properties, such as the ones produced based on Ga—In—Zn oxide as channel layers and where the dielectric was the combination of the mixture Ta2O5:SiO2, exhibiting field-effect mobility exceeding 35 cm2 V?1 s?1, close to 0 V turn-on voltage, on/off ratio higher than 106 and subthreshold slope below 0.24 V dec?1.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: March 24, 2015
    Assignees: Faculdad de Ciencias e Tecnologia da Universidad Nova de Lisboa, Jozef Stefan Institute, Universidad de Barcelona
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato, Pedro Miguel Cândido Barquinha, Luis Miguel Nunes Pereira, Gonçalo Pedro Gonçalves, Danjela Kuscer Hrovatin, Marija Kosec
  • Publication number: 20150053360
    Abstract: The present invention refers to the use and creation of materials based on natural cellulose fibbers, synthetic fibbers, or mixed fibbers as physical support and storing medium or storage inducer of electrical and ionic charges in self-sustaining discrete or complementary field-effect transistors with non-volatile memory by using organic or inorganic active semiconductors for the manufacture of the channel regions that are deposited on the fibbers of the paper material as well as metals or passive semiconductors for manufacturing drain and source allowing the interconnection of fibbers, in addition to the gate electrode contact existing on the other side-face of the paper, p or n type respectively, in monolithic or hybrid forms.
    Type: Application
    Filed: March 20, 2009
    Publication date: February 26, 2015
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato, Luís Migual Nunes Pereira, Pedro Miguel Candido Barquinha, Nuno Filipe De Oliveira Correia
  • Publication number: 20140008746
    Abstract: The invention illustrates an innovative way to fabricate low cost, efficient, rigid or flexible mesoscopic optoelectronic devices such as photovoltaic (PV) solar cells or photo sensors (b) comprising three-dimensional arrays of semi-conductive micro- or nano-pillars (3b) deposited from suspensions e.g. by inkjet printing. Said pillars additionally increase the surface area of the device composed of an interpenetrating network of semiconductor particles of mesoscopic (2-50 nm) size forming junctions. In the present invention the active surface area is significantly increased when compared to previous flat structures (a, 3a), being fabricated preferably by inkjet patterning. Additionally, the invention allows for production of much more functional devices when compared with conventional mesoscopic PV cells due to smaller structure density what makes the layer more resistive to mechanical failure when bending.
    Type: Application
    Filed: December 9, 2010
    Publication date: January 9, 2014
    Applicant: Faculdade de Ciências e Tecnolgia da Universidade Nova de Lisboa
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato, Pawel Jerzy Wojcik
  • Patent number: 8503059
    Abstract: The presently disclosed subject matter can include or consist of the creation and manufacture of electrochromic thin film transistors, either self-sustaining or not, with lateral or vertical structure, deposited on any kind of functionalized substrate, referred to as electrochromic substrate, or non-functionalized substrate. The electrolyte material and the presence or not of an ultra-thin membrane can act as dielectric element. The electrochromic material can act as active semiconductor of the channel region. The gate, source and drain electrodes can be based on metal materials, such as Titanium, Gold, Aluminum, or degenerate semiconductive oxides, like Indium and Zinc oxide, Gallium-doped Zinc oxide. The device operation control process can be made by means of electronic and ionic current, and the off-state to on-state switch, or vice-versa, can be followed by a change of color of the device.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: August 6, 2013
    Assignee: Faculdade de Ciências e Tecnologia/Universidade Nova de Lisboa
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato
  • Publication number: 20130075740
    Abstract: The present invention relates to thin films comprising non-stoichiometric monoxides of: copper (OCu2), with embedded cubic metal copper (Cucy) [(OCu2)x+(Cu1-2)y, wherein 0.05?x<1 and 0.01?y?0.9]; of tin (OSn)?x with embedded metal tin (Sn?x) [(OSn)z+(Sn1-2)w wherein 0.05?z<1 and 0.01?w?0.9]; Cucx—Sn?x alloys with embedded metal Sn and Cu [(O—Cu—Sn)a+(Cu?—Sn?)b with 0<?<2 and 0<?<2, wherein 0.05?a<1 and 0.01?b?0.9]; and of nickel (ONi)x with embedded Ni and Sn species [(O—Ni)a+(Ni?—Sn?)b with 0<?<2 and 0<?<2, wherein 0.05?a<1 and 0.01?b?0.
    Type: Application
    Filed: April 6, 2011
    Publication date: March 28, 2013
    Applicant: Electronic and Telecommunications Research Institu te
    Inventors: Elvira Maria Correia Fortunato, Rodrigo Ferrão De Paiva Martins, Ana Raquel Xarouco De Barros, Nuno Filipe De Oliveira Correia, Vitor Manuel Loureiro Figueireido, Pedro Miguel Cândido Barquinha, Sang-Hee Ko Park, Chi-Sun Hwang
  • Patent number: 8377699
    Abstract: The present invention relates to a system and process for detection and/or qualitative and quantitative identification of the biological material, such as specific sequences of nucleic acids or proteins as antibodies, present in biological samples. The system is composed by one or more light sources (1) combined with one or more integrated optical photo sensors, or not, and various electronic components (4), necessary for obtaining/processing of the signal emitted by the metal nanoprobes functionalized with a solution of biological composite, as well as also a micro-controller and a microprocessor, fixed or portable. This photosensor structure is able to detect and to quantify the color variations produced by metal nanoprobes, being this preferentially gold, functionalized by oligonucleotides complementary to specific DNA/RNA sequences, proteins, as for instance antibodies and/or antigens related with certain disease, or other sample or solution of biological composite, that are to be investigated.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 19, 2013
    Assignee: Universidade Nova de Lisboa
    Inventors: Rodrigo Ferräo De Paiva Martins, Pedro Miguel Ribeiro Viana Baptista, Elvira Maria Correia Fortunato
  • Publication number: 20120248445
    Abstract: High performance thin-film, transistors are entirely processed at temperatures not exceeding 150° C., using amorphous multi component dielectrics based on the mixture of high band gap and high dielectric constant (K) materials. The sputtered or ink jet printed mixed dielectric materials such as Ta2O5 with SiO2 or Al2O3 or HfO2 with SiO2 or Al2O3 are used. These multicomponent dielectrics allow producing amorphous dielectrics to be introduced in high stable electronic devices with low leakage currents, while preserving a high dielectric constant. This results in producing thin film transistors with remarkable electrical properties, such as the ones produced based on Ga—In—Zn oxide as channel layers and where the dielectric was the combination of the mixture Ta2O5:SiO2, exhibiting field-effect mobility exceeding 35 cm2 V?1 s?1, close to 0 V turn-on voltage, on/off ratio higher than 106 and subthreshold slope below 0.24 V dec?1.
    Type: Application
    Filed: August 5, 2010
    Publication date: October 4, 2012
    Applicants: Faculdad de Ciencias e Technologia da Universidade Nova de Lisboa, Universidad de Barcelona, Jozef Stefan Institute
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia fortunato, Pedro Miguel Cândido Barquinha, Luís Miguel Nunes Pereira, Gonçalo Pedro Gonçalves, Danjela Kuscer Hrovatin, Marija Kosec
  • Patent number: 8274082
    Abstract: The present invention corresponds to the use of p and n-type oxide semiconductors based on copper nickel (OCuxNiy, with 0<x<3; 0<y<3) or multicomponent Gallium-Tin-Zinc-Copper-Titanium oxide, designated here after as GSZTCO, in different molar compositions, having an amorphous or crystalline structure and with the electrical characteristics of a donor or electron acceptor semiconductor, doped or not doped with impurities, such as, Zirconium or nickel or nitrogen, as a way to control the semiconductor electronic behaviour (valence); including the manufacture process at room temperature or temperatures below 100° C.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: September 25, 2012
    Assignee: Universidade Nova de Lisboa
    Inventors: Rodrigo Ferrã De Paiva Martins, Elvira Maria Correia Fortunato
  • Publication number: 20120081774
    Abstract: The presently disclosed subject matter can include or consist of the creation and manufacture of electrochromic thin film transistors, either self-sustaining or not, with lateral or vertical structure, deposited on any kind of functionalized substrate, referred to as electrochromic substrate, or non-functionalized substrate. The electrolyte material and the presence or not of an ultra-thin membrane can act as dielectric element. The electrochromic material can act as active semiconductor of the channel region. The gate, source and drain electrodes can be based on metal materials, such as Titanium, Gold, Aluminium, or degenerate semiconductive oxides, like Indium and Zinc oxide, Gallium-doped Zinc oxide. The device operation control process can be made by means of electronic and ionic current, and the off-state to on-state switch, or vice-versa, can be followed by a change of colour of the device.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 5, 2012
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato
  • Publication number: 20110149529
    Abstract: The present invention consists of the direct deposition over paper of electric and electronic elements, single or integrated, including at nano-scale. The deposition, by virtue of the materials and scale utilized, is furthermore transparent, which allows the application of the present invention in the domain of graphic arts. The deposition is executed at close-to-ambient temperatures, an in a less controlled environment than that of traditional deposition processes. Furthermore, the low cost of printing obtained allows for the application of electronic paper to large surfaces.
    Type: Application
    Filed: January 30, 2009
    Publication date: June 23, 2011
    Inventors: Elvira Maria Correia Fortunato, Rodrigo Ferrão de Paiva Martins, António da Nóbrega de Sousa da Camara
  • Publication number: 20100090216
    Abstract: The present invention corresponds to the use of p and n-type oxide semiconductors based on copper nickel (OCux Niy, with 0<x<3; 0<y<3) or multicomponent Gallium-Tin-Zinc-Copper-Titanium oxide, designated here after as GSZTCO, in different molar compositions, having an amorphous or crystalline structure and with the electrical characteristics of a donor or electron acceptor semiconductor, doped or not doped with impurities, such as, Zirconium or nickel or nitrogen, as a way to control the semiconductor electronic behaviour (valence); including the manufacture process at room temperature or temperatures below 100° C.
    Type: Application
    Filed: February 5, 2007
    Publication date: April 15, 2010
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia Fortunato
  • Publication number: 20100041161
    Abstract: The present invention relates to a system and process for detection and/or qualitative and quantitative identification of the biological material, such as specific sequences of nucleic acids or proteins as antibodies, present in biological samples. The system is composed by one or more light sources (1) combined with one or more integrated optical photo sensors, or not, and various electronic components (4), necessary for obtaining/processing of the signal emitted by the metal nanoprobes functionalized with a solution of biological composite, as well as also a micro-controller and a microprocessor, fixed or portable. This photosensor structure is able to detect and to quantify the colour variations produced by metal nanoprobes, being this preferentially gold, functionalized by oligonucleotides complementary to specific DNA/RNA sequences, proteins, as for instance antibodies and/or antigens related with certain disease, or other sample or solution of biological composite, that are to be investigated.
    Type: Application
    Filed: September 7, 2007
    Publication date: February 18, 2010
    Inventors: Rodrigo Ferräo De Paiva Martins, Pedro Miguel Ribeiro Viana Baptista, Elvira Maria Correia Fortunato