Patents by Inventor Santo Alessandro Smerzi

Santo Alessandro Smerzi 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: 20190339144
    Abstract: A sensing bridge includes first and second branches in parallel, the first branch including a first resistor in series with a first switch, the second branch including a second resistor in series with a second switch. Resistances of the resistors vary with a sensed physical variable. The branches switch between first and second phases, with the first switch closed and the second switch open during the first phase, and the first switch open and the second switch closed during the second phase. A reference block generates a control signal from the resistance of the variable resistors during the first and second phases. An oscillator generates an oscillating signal during the first and second phases from the variable sense current during the first and second phases. Processing circuitry determines a value of the sensed physical value from an algebraic combination of the oscillating signal during the first and second phases.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Applicant: STMicroelectronics S.r.l.
    Inventor: Santo Alessandro SMERZI
  • Publication number: 20190326231
    Abstract: A process for manufacturing a strained semiconductor device envisages: providing a die of semiconductor material, in which elementary components of the semiconductor device have been integrated by means of initial front-end steps; and coupling, using the die-attach technique, the die to a support, at a coupling temperature. The aforesaid coupling step envisages selecting the value of the coupling temperature at a value higher than an operating temperature of use of the semiconductor device, and moreover selecting the material of the support so that it is different from the material of the die in order to determine, at the operating temperature, a coupling stress that is a function of the different values of the coefficients of thermal expansion of the materials of the die and of the support and of the temperature difference between the coupling temperature and the operating temperature.
    Type: Application
    Filed: April 19, 2019
    Publication date: October 24, 2019
    Inventors: Santo Alessandro SMERZI, Michele CALABRETTA, Alessandro SITTA, Crocifisso Marco Antonio RENNA, Giuseppe D'ARRIGO
  • Publication number: 20190285509
    Abstract: A stress sensor includes: a substrate, having a face and a recess, open to the face; and a sensor chip of semiconductor material, housed in the recess and bonded to the substrate, the sensor chip being provided with a plurality of sensing components of piezoresistive material. The substrate has a thickness which is less by at least one order of magnitude with respect to a main dimension of the face. Further, the sensor chip has a thickness which is less by at least one order of magnitude with respect to the thickness of the substrate, and a Young's module of the substrate and a Young's module of the sensor chip are of the same order of magnitude.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Inventor: Santo Alessandro SMERZI
  • Patent number: 10393601
    Abstract: A MEMS pressure sensor includes a resistive sensing bridge with a first sensing resistor and a second sensing resistor, each having variable resistance values in response to change in a sensed physical variable. An oscillator generates an oscillation signal with a frequency or period that is a function of an oscillator control signal. A sensor reference module generates the oscillator control signal as a function of the resistance value of a resistor coupled therewith. This sensor reference module is couplable with the first sensing resistor or second sensing resistor. A processing circuit coupled to the oscillator provides a sensor signal indicative of the frequency or period of the oscillation signal. The sensor signal has first and second values with the sensor reference module coupled with the first sensing resistor and with the second sensing resistor, respectively, the first and second values being thus jointly indicative of the physical variable sensed.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: August 27, 2019
    Assignee: STMicroelectronics S.r.l.
    Inventor: Santo Alessandro Smerzi
  • Publication number: 20170356813
    Abstract: A MEMS pressure sensor includes a resistive sensing bridge with a first sensing resistor and a second sensing resistor, each having variable resistance values in response to change in a sensed physical variable. An oscillator generates an oscillation signal with a frequency or period that is a function of an oscillator control signal. A sensor reference module generates the oscillator control signal as a function of the resistance value of a resistor coupled therewith. This sensor reference module is couplable with the first sensing resistor or second sensing resistor. A processing circuit coupled to the oscillator provides a sensor signal indicative of the frequency or period of the oscillation signal. The sensor signal has first and second values with the sensor reference module coupled with the first sensing resistor and with the second sensing resistor, respectively, the first and second values being thus jointly indicative of the physical variable sensed.
    Type: Application
    Filed: February 21, 2017
    Publication date: December 14, 2017
    Applicant: STMicroelectronics S.r.l.
    Inventor: Santo Alessandro Smerzi
  • Patent number: 8364195
    Abstract: An embodiment of a wireless galvanic isolator device is formed by a transmitter circuit, a receiver circuit, and a wireless coupling structure, arranged between the transmitter circuit and the receiver circuit. The wireless coupling structure is formed by a pair of antennas each arranged on an own die and integrated together with the respective transmitter and receiver circuit. The two dice may be arranged adjacent to each other in a planar configuration or arranged on top of each other and bonded together.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: January 29, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Nunzio Spina, Giovanni Girlando, Santo Alessandro Smerzi, Giuseppe Palmisano
  • Patent number: 8026753
    Abstract: A prescaling stage includes bistable circuit in turn including respective master and slave portions inserted between a first and a second voltage reference and feedback connected to each other. Each portion is provided with at least one differential stage supplied by the first voltage reference and connected, by a transistor stage, to the second voltage reference, as well as a differential pair of cross-coupled transistors, supplied by output terminals of the differential stage and connected, by the transistor stage, to the second voltage reference. Advantageously, each master and slave portion includes a degeneration capacitance inserted in correspondence with respective terminals of the transistors of the differential pair.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: September 27, 2011
    Assignee: STMicroelectronics S.r.l.
    Inventors: Tino Copani, Santo Alessandro Smerzi, Giovanni Girlando, Giuseppe Palmisano
  • Publication number: 20100109719
    Abstract: A prescaling stage includes bistable circuit in turn including respective master and slave portions inserted between a first and a second voltage reference and feedback connected to each other. Each portion is provided with at least one differential stage supplied by the first voltage reference and connected, by a transistor stage, to the second voltage reference, as well as a differential pair of cross-coupled transistors, supplied by output terminals of the differential stage and connected, by the transistor stage, to the second voltage reference. Advantageously, each master and slave portion includes a degeneration capacitance inserted in correspondence with respective terminals of the transistors of the differential pair.
    Type: Application
    Filed: October 28, 2009
    Publication date: May 6, 2010
    Applicant: STMicroelectronics S.r.I.
    Inventors: Tino Copani, Santo Alessandro Smerzi, Giovanni Girlando, Giuseppe Palmisano
  • Patent number: 7663414
    Abstract: A prescaling stage includes bistable circuit in turn including respective master and slave portions inserted between a first and a second voltage reference and feedback connected to each other. Each portion is provided with at least one differential stage supplied by the first voltage reference and connected, by a transistor stage, to the second voltage reference, as well as a differential pair of cross-coupled transistors, supplied by output terminals of the differential stage and connected, by the transistor stage, to the second voltage reference. Advantageously, each master and slave portion includes a degeneration capacitance inserted in correspondence with respective terminals of the transistors of the differential pair.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: February 16, 2010
    Assignee: STMicroelectronics S.r.l.
    Inventors: Tino Copani, Santo Alessandro Smerzi, Giovanni Girlando, Giuseppe Palmisano
  • Publication number: 20080311862
    Abstract: An embodiment of a wireless galvanic isolator device is formed by a transmitter circuit, a receiver circuit, and a wireless coupling structure, arranged between the transmitter circuit and the receiver circuit. The wireless coupling structure is formed by a pair of antennas each arranged on an own die and integrated together with the respective transmitter and receiver circuit. The two dice may be arranged adjacent to each other in a planar configuration or arranged on top of each other and bonded together.
    Type: Application
    Filed: May 12, 2008
    Publication date: December 18, 2008
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Nunzio Spina, Giovanni Girlando, Santo Alessandro Smerzi, Giuseppe Palmisano
  • Patent number: 7288994
    Abstract: A converter is for a differential input signal into a single-ended output signal and may include a differential pair of identical first and second transistors driven by the differential input signal, and a circuit for filtering DC components, connected between the current terminal of the second transistor not in common with the first transistor of the differential pair and an output node of the converter on which the single-ended output signal is generated. The converter generates a single-ended signal without employing a transformer, in lieu thereof the converter may include a current generator biasing the differential pair by of third and fourth output transistors, in a current mirror configuration, connected in series with the first and second transistors, respectively. The converter may also include degeneration resistors of the transistors of the current mirror, dimensioned such that the gains of the converter for each of the two input nodes of the differential signal are equal and of opposite sign.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: October 30, 2007
    Assignee: STMicroelectronics S.r.l.
    Inventors: Tino Copani, Santo Alessandro Smerzi, Giovanni Girlando, Giuseppe Palmisano
  • Patent number: 7245190
    Abstract: A silicon bipolar VCO implementing a double-coupled transformer is disclosed. The VCO circuit, which is suitable in the field of integrated RF circuits, has been integrated into a universal LNB having a down-converter block and PLL merged into a single die and implemented in silicon bipolar technology. The integrated transformer is formed by three turns of stacked metal layers, where the topmost metal layer is employed for the resonator inductance. The VCO is missing conventional biasing resistors and decoupling capacitors, thus improving phase noise and tuning range performance.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: July 17, 2007
    Assignee: STMicroelectronics S.r.l.
    Inventors: Tino Copani, Santo Alessandro Smerzi, Giovanni Girlando, Giuseppe Palmisano