Patents by Inventor Giosué Caliano

Giosué Caliano 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: 20160013394
    Abstract: The present invention relates to a transducer device having a planar array of electroacoustic cells, each including a piezoelectric bilayer unit. The transducer device achieves high transmission sensitivity across a broad bandwidth. The transducer device may be designed to have a broad or a focused directivity pattern, or may be multi-frequency, depending on the particular application and has a range of applications. For example, the transducer device may be used with an implanted passive ultrasonically excitable resonating sensor, to excite the sensor and/or to interrogate the sensor, for example in conjunction with Doppler-based analysis of the resonance frequency of the sensor, and/or to locate an implanted sensor. The invention also relates to a method of manufacturing the device.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 14, 2016
    Inventors: Alessandro Stuart SAVOIA, Giosuè CALIANO, Alexander MELAMUD, Eric S. TAMMAM
  • Patent number: 8033997
    Abstract: The invention relates to an ultrasonic transducer comprising a plurality of micro-cells, arranged in an array having M rows and N columns, and driving electronic means apt to connect in parallel to each other said micro-cells so as to form at least two sub-groups of said micro-cells, the micro-cells of each sub-group being connected in parallel to each other, at least one column of said array comprising micro-cells belonging to at least two different adjacent sub-groups, so that a radiation emitted in a direction perpendicular to the array columns by said at least one column has a phase that is intermediate between the phases of said at least two different adjacent sub-groups.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: October 11, 2011
    Assignee: Esaote S.p.A,
    Inventors: Danilo Fiasca, Giosuè Caliano, Alessandro Caronti, Vittorio Foglietti, Elena Cianci, Massimo Pappalardo
  • Patent number: 7800189
    Abstract: The invention relates to a microfabricated capacitive ultrasonic transducer (20) comprising at least one thin plate (21), provided with a metallization (24), suspended over a conductive substrate (23) through supporting elements integrally coupled to the conductive substrate (23), the conductive substrate (23) forming one or more electrodes corresponding to said at least one thin plate (21), characterized in that said supporting elements comprise an ordered arrangement of columns or “pillars” (22) to which the thin plate (21) is integrally coupled, whereby the pillars (22) operate as substantially punctiform constraints. The invention further relates to a surface micro-mechanical process for fabricating such microfabricated capacitive ultrasonic transducers (20).
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: September 21, 2010
    Assignee: Esaote S.p.A.
    Inventors: Giosuè Caliano, Alessandro Caronti, Riccardo Carotenuto, Massimo Pappalardo
  • Patent number: 7790490
    Abstract: The invention concerns a manufacturing process, and the related micromachined capacitive ultra-acoustic transducer, that uses commercial silicon wafer 8 already covered on at least one or, more preferably, on both faces by an upper layer 9 and by a lower layer 9? of silicon nitride deposited with low pressure chemical vapour deposition technique, or deposition LPCVD deposition. One of the two layers 9 or 9? of silicon nitride, of optimal quality, covering the wafer 8 is used as emitting membrane of the transducer. As a consequence, the micro-cell array 6 forming the CMUT transducer is grown onto one of the two layers of silicon nitride, i.e. it is grown at the back of the transducer with a sequence of steps that is reversed with respect to the classical technology.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: September 7, 2010
    Assignees: Consiglio Nazionale Delle Ricerche, Esaote S.p.A.
    Inventors: Giosuè Caliano, Alessandro Caronti, Vittorio Foglietti, Elena Cianci, Antonio Minotti, Alessandro Nencioni, Massimo Pappalardo
  • Publication number: 20100137718
    Abstract: Ultrasound transducer comprising an array of electro-acoustic micro-cells, a first and a second group of transducer elements arranged substantially along two directions (x, y), each element being defined by a group of micro-cells of the array, at least part of the micro-cells of each group being electrically interconnected by a first connection pattern having shape with main orientation along one of the two directions (x, y), characterized in that each group of micro-cells defining each element comprises micro-cells interconnected by further connection pattern or patterns having shape with main orientation along the other of the two directions (y, x).
    Type: Application
    Filed: November 23, 2007
    Publication date: June 3, 2010
    Inventors: Massimo Pappalardo, Giosue Caliano, Alessandro Caronti, Alessandro Stuart Savoia, Philipp Gatta, Cristina Longo, Vito Bavaro
  • Patent number: 7477572
    Abstract: The invention relates to an electro-acoustic transducer, particularly an ultrasonic transducer, comprising a plurality of electrostatic micro-cells of the cMUT type. The electrostatic micro-cells are arranged in homogeneous groups of micro-cells having the same geometrical characteristics. The micro-cells of each group have geometries different from the geometry of the micro-cells of the other group or groups.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: January 13, 2009
    Assignee: Esaote, S.p.A.
    Inventors: Alessandro Caronti, Giosuè Caliano, Alessandro Stuart Savoia, Philipp Gatta, Massimo Pappalardo
  • Publication number: 20080212407
    Abstract: The invention concerns a manufacturing process, and the related micromachined capacitive ultra-acoustic transducer, that uses commercial silicon wafer 8 already covered on at least one or, more preferably, on both faces by an upper layer 9 and by a lower layer 9? of silicon nitride deposited with low pressure chemical vapour deposition technique, or deposition LPCVD deposition. One of the two layers 9 or 9? of silicon nitride, of optimal quality, covering the wafer 8 is used as emitting membrane of the transducer. As a consequence, the micro-cell array 6 forming the CMUT transducer is grown onto one of the two layers of silicon nitride, i.e. it is grown at the back of the transducer with a sequence of steps that is reversed with respect to the classical technology.
    Type: Application
    Filed: March 2, 2006
    Publication date: September 4, 2008
    Applicants: CONSIGLIO NAZIONALE DELLE RICERCHE, ESAOTE S.P.A.
    Inventors: Giosue Caliano, Alessandro Caronti, Vittorio Foglietti, Elena Cianci, Antonio Minotti, Alessandro Nencioni, Massimo Pappalardo
  • Patent number: 7359286
    Abstract: The invention concerns a capacitive ultrasonic transducer, comprising an external layer operating as an external plate, provided with electrode means, capable to vibrate, and a stiff substrate, in turn provided with electrode means, wherein it further comprises n levels, with n?2, interposed between the plate and the substrate, each level including a plurality of cavities, and m interface intermediate layers, capable to vibrate, among said n levels, with m=(n?1), the cavities of each one of said n levels being further defined by support means connected between faced surfaces of layers adjacent to said cavities, each one of said m intermediate layers being provided with electrode means, whereby the cavities of each level are interposed between a pair of electrode means belonging to either two adjacent intermediate layers or to an intermediate layer and to one out of the substrate and the plate.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: April 15, 2008
    Assignee: Esaote S.p.A.
    Inventors: Alessandro Stuart Savoia, Giosuè Caliano, Alessandro Caronti, Cristina Longo, Massimo Pappalardo
  • Publication number: 20070258332
    Abstract: The invention concerns a capacitive ultrasonic transducer, comprising an external layer operating as an external plate, provided with electrode means, capable to vibrate, and a stiff substrate, in turn provided with electrode means, wherein it further comprises n levels, with n?2, interposed between the plate and the substrate, each level including a plurality of cavities, and m interface intermediate layers, capable to vibrate, among said n levels, with m=(n?1), the cavities of each one of said n levels being further defined by support means connected between faced surfaces of layers adjacent to said cavities, each one of said m intermediate layers being provided with electrode means, whereby the cavities of each level are interposed between a pair of electrode means belonging to either two adjacent intermediate layers or to an intermediate layer and to one out of the substrate and the plate.
    Type: Application
    Filed: May 2, 2007
    Publication date: November 8, 2007
    Applicant: ESAOTE S.P.A.
    Inventors: Alessandro STUART SAVOIA, Giosue CALIANO, Alessandro CARONTI, Cristina LONGO, Massimo PAPPALARDO
  • Publication number: 20070059858
    Abstract: The invention relates to an electro-acoustic transducer, particularly an ultrasonic transducer, comprising a plurality of electrostatic micro-cells of the cMUT type. The electrostatic micro-cells are arranged in homogeneous groups of micro-cells having the same geometrical characteristics. The micro-cells of each group have geometries different from the geometry of the micro-cells of the other group or groups.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 15, 2007
    Inventors: Alessandro Caronti, Giosue Caliano, Alessandro Savoia, Philipp Gatta, Massimo Pappalardo
  • Patent number: 7074634
    Abstract: A surface micromachining process for manufacturing Electro-acoustic transducers, particularly ultrasonic transducers, the transducers comprising a silicon semiconductor substrate (1), on an upper surface of which one or more membranes (18) of resilient materials are supported by a structural layer (11) of insulating material, rigidly connected to the semiconductor substrate (1), the resilient material having a Young's modulus not lower than 50 GPa, the membranes (18) being metallised, the transducers including one or more lower electrodes (23, 25), rigidly connected to the semiconductor substrate. The process is characterised in that the structural layer (11) includes silicon monoxide. The invention further relates to an Electro-acoustic transducer, particularly an ultrasonic transducer, characterised in that the insulating material of the structural layer (11) is silicon monoxide.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: July 11, 2006
    Assignees: Consiglio Nazionale Delle Ricerche, Esaote S.p.A., Universita' Degli Studi-Roma Tre
    Inventors: Vittorio Foglietti, Elena Cianci, Daniele Memmi, Giosué Caliano, Massimo Pappalardo
  • Publication number: 20060007045
    Abstract: The invention relates to an ultrasonic transducer comprising a plurality of micro-cells, arranged in an array having M rows and N columns, and driving electronic means apt to connect in parallel to each other said micro-cells so as to form at least two sub-groups of said micro-cells, the micro-cells of each sub-group being connected in parallel to each other, at least one column of said array comprising micro-cells belonging to at least two different adjacent sub-groups, so that a radiation emitted in a direction perpendicular to the array columns by said at least one column has a phase that is intermediate between the phases of said at least two different adjacent sub-groups.
    Type: Application
    Filed: June 17, 2005
    Publication date: January 12, 2006
    Applicant: ESAOTE S.p.A.
    Inventors: Danilo Fiasca, Giosue Caliano, Alessandro Caronti, Vittorio Foglietti, Elena Cianci, Massimo Pappalardo
  • Publication number: 20050018536
    Abstract: The invention relates to a microfabricated capacitive ultrasonic transducer (20) comprising at least one thin plate (21), provided with a metallization (24), suspended over a conductive substrate (23) through supporting elements integrally coupled to the conductive substrate (23), the conductive substrate (23) forming one or more electrodes corresponding to said at least one thin plate (21), characterised in that said supporting elements comprise an ordered arrangement of columns or “pillars” (22) to which the thin plate (21) is integrally coupled, whereby the pillars (22) operate as substantially punctiform constraints. The invention further relates to a surface micro-mechanical process for fabricating such microfabricated capacitive ultrasonic transducers (20).
    Type: Application
    Filed: June 25, 2004
    Publication date: January 27, 2005
    Inventors: Giosue Caliano, Alessandro Caronti, Riccardo Carotenuto, Massimo Pappalardo
  • Publication number: 20040180466
    Abstract: This invention relates to a surface micromachining process for manufacturing Electro-acoustic transducers, particularly ultrasonic transducers, said transducers comprising a silicon semiconductor substrate (1), on an upper surface of which one or more membranes (18) of resilient materials are supported by a structural layer (11) of insulating materiel, rigidly connected to said semiconductor substrate (1), said resilient material having a Young's modulus not lower than 50 GPa, said membranes (18) being metallised, said transducers including one or more lower electrodes (23, 25), rigidly connected to said semiconductor substrate (1), the process being characterised in that said structural layer (11) includes silicon monoxide. The invention further relates to an Electro-acoustic transducer, particularly an ultrasonic transducer, characterised in that the insulating material of the structural layer (11) is silicon monoxide.
    Type: Application
    Filed: May 7, 2004
    Publication date: September 16, 2004
    Inventors: Vittorio Foglietti, Elena Cianci, Daniele Memmi, Giosue Caliano, Massimo Pappalardo