Patents by Inventor Hans Von Kanel

Hans Von Kanel 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: 11367747
    Abstract: Monolithic pixel detectors, systems and methods for the detection and imaging of electromagnetic radiation with high spectral and spatial resolution comprise a Si wafer with a CMOS processed pixel readout bonded to an absorber wafer in wafer bonds comprising conducting bonds between doped, highly conducting charge collectors in the readout and highly conducting regions in the absorber wafer and poorly conducting bonds between regions of high resistivity.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 21, 2022
    Inventor: Hans Von Känel
  • Publication number: 20210225803
    Abstract: Production system for wafer bonding comprising modules for wet chemical wafer cleaning and surface passivation and vacuum modules with base pressure in the ultrahigh vacuum regime for the removal of surface passivation, wafer flipping and alignment, low temperature annealing and wafer bonding, with all modules integrated in the same tool and individually serviceable. Methods for oxide-free covalent semiconductor wafer bonding include wet chemistry and vacuum processing at low temperatures compatible with CMOS processed wafers.
    Type: Application
    Filed: June 24, 2019
    Publication date: July 22, 2021
    Applicant: G-ray Industries SA
    Inventors: Hans VON KÄNEL, Franco BRESSAN
  • Patent number: 11024666
    Abstract: Monolithic CMOS integrated pixel detector (10, 20, 30, 260, 470, 570), and systems and methods are provided for the detection and imaging of electromagnetic radiation with high spectral and spatial resolution. Such detectors comprise a Si wafer with a CMOS processed readout bonded to an absorber wafer in an electrically conducting covalent wafer bond. The pixel detectors, systems and methods are used in various medical and non-medical types of applications.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 1, 2021
    Assignee: G-ray Switzerland SA
    Inventor: Hans Von Känel
  • Patent number: 10985204
    Abstract: Oxide-free, low temperature wafer bonding permits electric current to cross the covalently bonded interface unimpeded by traps, recombination centers and unintentional, defect-induced blocking barriers when interfacial defects are passivated by hydrogen diffused from shallow implants towards the interface. Systems and methods comprising oxide-free, low temperature covalent wafer bonding with passivated interface states are used in various applications requiring reduced interfacial scattering and carrier trapping and efficient charge collection across bonded interfaces.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 20, 2021
    Assignee: G-ray Switzerland SA
    Inventor: Hans Von Känel
  • Patent number: 10636834
    Abstract: CBCT including monolithic photon counting FPD for medical applications requiring real-time 3D imaging, like mammography, interventional guided procedures or external beam radiotherapy, includes CMOS processed readout electronics monolithically integrated with a single crystalline X-ray absorber by covalent wafer bonding near room temperature and adapted for single photon counting providing high energy, temporal and spatial resolution.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 28, 2020
    Assignee: G-ray Switzerland SA
    Inventors: Claude Meylan, Hans Von Känel
  • Patent number: 10561382
    Abstract: CBCT including monolithic photon counting FPD for medical applications requiring real-time 3D imaging, like mammography, interventional guided procedures or external beam radiotherapy, includes CMOS processed readout electronics monolithically integrated with a single crystalline X-ray absorber by covalent wafer bonding near room temperature and adapted for single photon counting providing high energy, temporal and spatial resolution.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 18, 2020
    Assignee: G-ray Switzerland SA
    Inventors: Claude Meylan, Hans Von Känel
  • Patent number: 10535707
    Abstract: Monolithic silicon pixel detectors, systems and methods for the detection and imaging of radiation in the form of charged particles or X-ray photons comprise a Si wafer with a CMOS processed readout communicating via implants for charge collection with an absorber forming a monolithic unit with the Si wafer to collect and process the electrical signals generated by radiation incident on the absorber. In particular, a monolithic CMOS integrated pixel detector includes several components. Such components include a p-doped silicon wafer with a resistivity of at least 1 k?cm (220, 310, 310?) having a front-side (224, 314, 314) comprising a CMOS processed readout electronics (250, 350) comprising pixel electronics (258, 358) and a backside (228, 318) opposite the front side. In addition, the pixel detector includes charge collectors (252, 352) communicating with the pixel electronics (258, 358) and defining the pixel size. Still further, high voltage contacts (282, 382) are provided.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 14, 2020
    Assignee: G-ray Industries SA
    Inventor: Hans Von Känel
  • Publication number: 20190371853
    Abstract: Monolithic pixel detectors, systems and methods for the detection and imaging of electromagnetic radiation with high spectral and spatial resolution comprise a Si wafer with a CMOS processed pixel readout bonded to an absorber wafer in wafer bonds comprising conducting bonds between doped, highly conducting charge collectors in the readout and highly conducting regions in the absorber wafer and poorly conducting bonds between regions of high resistivity.
    Type: Application
    Filed: March 1, 2018
    Publication date: December 5, 2019
    Inventor: Hans VON KÄNEL
  • Publication number: 20190280042
    Abstract: Monolithic silicon pixel detectors, systems and methods for the detection and imaging of radiation in the form of charged particles or X-ray photons comprise a Si wafer with a CMOS processed readout communicating via implants for charge collection with an absorber forming a monolithic unit with the Si wafer to collect and process the electrical signals generated by radiation incident on the absorber. In particular, a monolithic CMOS integrated pixel detector includes several components. Such components include a p-doped silicon wafer with a resistivity of at least 1 k?cm (220, 310, 310?) having a front-side (224, 314, 314) comprising a CMOS processed readout electronics (250, 350) comprising pixel electronics (258, 358) and a backside (228, 318) opposite the front side. In addition, the pixel detector includes charge collectors (252, 352) communicating with the pixel electronics (258, 358) and defining the pixel size. Still further, high voltage contacts (282, 382) are provided.
    Type: Application
    Filed: May 11, 2017
    Publication date: September 12, 2019
    Applicant: G-ray Industries SA
    Inventor: Hans VON KÄNEL
  • Publication number: 20190172860
    Abstract: Monolithic CMOS integrated pixel detector (10, 20, 30, 260, 470, 570), and systems and methods are provided for the detection and imaging of electromagnetic radiation with high spectral and spatial resolution. Such detectors comprise a Si wafer with a CMOS processed readout bonded to an absorber wafer in an electrically conducting covalent wafer bond. The pixel detectors, systems and methods are used in various medical and non-medical types of applications.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 6, 2019
    Inventor: Hans VON KÄNEL
  • Publication number: 20190043914
    Abstract: Oxide-free, low temperature wafer bonding permits electric current to cross the covalently bonded interface unimpeded by traps, recombination centers and unintentional, defect-induced blocking barriers when interfacial defects are passivated by hydrogen diffused from shallow implants towards the interface.
    Type: Application
    Filed: February 16, 2017
    Publication date: February 7, 2019
    Inventor: Hans VON KÄNEL
  • Patent number: 10163957
    Abstract: Monolithic pixel detectors, systems and methods for the detection and imaging of radiation in the form of energetic particles which may have a mass or be massless (such as X-ray photons) comprise a Si wafer with a CMOS processed readout communicating via implants for charge collection with an absorber forming a monolithic unit with the Si wafer to collect and process the electrical signals generated by radiation incident on the absorber. The pixel detectors, systems and methods are used in various medical, industrial and scientific types of applications.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 25, 2018
    Assignee: G-ray Switzerland SA
    Inventor: Hans Von Känel
  • Publication number: 20180240842
    Abstract: CBCT including monolithic photon counting FPD for medical applications requiring real-time 3D imaging, like mammography, interventional guided procedures or external beam radiotherapy, includes CMOS processed readout electronics monolithically integrated with a single crystalline X-ray absorber by covalent wafer bonding near room temperature and adapted for single photon counting providing high energy, temporal and spatial resolution.
    Type: Application
    Filed: August 31, 2016
    Publication date: August 23, 2018
    Applicant: G-ray Switzerland SA
    Inventors: Claude MEYLAN, Hans VON KÄNEL
  • Publication number: 20170373110
    Abstract: Monolithic pixel detectors, systems and methods for the detection and imaging of radiation in the form of energetic particles which may have a mass or be massless (such as X-ray photons) comprise a Si wafer with a CMOS processed readout communicating via implants for charge collection with an absorber forming a monolithic unit with the Si wafer to collect and process the electrical signals generated by radiation incident on the absorber. The pixel detectors, systems and methods are used in various medical, industrial and scientific types of applications.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 28, 2017
    Applicant: G-ray Switzerland SA
    Inventor: Hans VON KÄNEL
  • Publication number: 20170055923
    Abstract: CBCT including monolithic photon counting FPD for medical applications requiring real-time 3D imaging, like mammography, interventional guided procedures or external beam radiotherapy, includes CMOS processed readout electronics monolithically integrated with a single crystalline X-ray absorber by covalent wafer bonding near room temperature and adapted for single photon counting providing high energy, temporal and spatial resolution.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 2, 2017
    Inventors: Claude MEYLAN, Hans Von Känel
  • Patent number: 9466479
    Abstract: A process for epitaxial deposition of compound semiconductor layers includes several steps. In a first step, a substrate is removably attached to a substrate holder that may be heated. In a second step, the substrate is heated to a temperature suitable for epitaxial deposition. In a third step, substances are vaporized into vapor particles, such substances including at least one of a list of substances, comprising elemental metals, metal alloys and dopants. In a fourth step, the vapor particles are discharged to the deposition chamber. In a fifth step, a pressure is maintained in the range of 10^?3 to 1 mbar in the deposition chamber by supplying a mixture of gases comprising at least one gas, wherein vapor particles and gas particles propagate diffusively. In a sixth optional step, a magnetic field may be applied to the deposition chamber. In a seventh step, the vapor particles and gas particles are activated by a plasma in direct contact with the sample holder.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 11, 2016
    Assignee: OERLIKON METCO AG, WOHLEN
    Inventor: Hans Von Känel
  • Patent number: 9318326
    Abstract: Structures and methods for producing active layer stacks of lattice matched, lattice mismatched and thermally mismatched semiconductor materials, with low threading dislocation densities, no layer cracking and minimized wafer bowing, by using epitaxial growth onto elevated substrate regions in a mask-less process.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: April 19, 2016
    Assignee: PILEGROWTH TECH S.R.L.
    Inventors: Hans Von Kanel, Leonida Miglio
  • Publication number: 20130260537
    Abstract: A process for epitaxial deposition of compound semiconductor layers includes several steps. In a first step, a substrate is removably attached to a substrate holder that may be heated. In a second step, the substrate is heated to a temperature suitable for epitaxial deposition. In a third step, substances are vaporized into vapor particles, such substances including at least one of a list of substances, comprising elemental metals, metal alloys and dopants. In a fourth step, the vapor particles are discharged to the deposition chamber. In a fifth step, a pressure is maintained in the range of 10?-3 to 1 mbar in the deposition chamber by supplying a mixture of gases comprising at least one gas, wherein vapor particles and gas particles propagate diffusively. In a sixth optional step, a magnetic field may be applied to the deposition chamber. In a seventh step, the vapor particles and gas particles are activated by a plasma in direct contact with the sample holder.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicant: Sulzer Metco AG
    Inventor: Hans VON KÄNEL
  • Publication number: 20130037857
    Abstract: Structures and methods for producing active layer stacks of lattice matched, lattice mismatched and thermally mismatched semiconductor materials, with low threading dislocation densities, no layer cracking and minimized wafer bowing, by using epitaxial growth onto elevated substrate regions in a mask-less process.
    Type: Application
    Filed: April 26, 2011
    Publication date: February 14, 2013
    Inventors: Hans Von Kanel, Leonida Miglio
  • Patent number: 8237126
    Abstract: The present invention discloses an X-ray imaging device comprising an X-ray absorber that comprises a plurality of semiconductor layers. The plurality of semiconductor layers comprise a substrate having a backside; and at least one absorption layer adapted to absorb at least one X-ray photon impinging on the at least one absorption layer that is adapted to correspondingly generate in response to the at least one impinging X-ray photon at least one electron-hole pair; and a readout unit, wherein the readout unit is operatively coupled to the X-ray absorber such to enable readout of the at least one electron-hole pair. Additional and alternative embodiments are described and claimed.
    Type: Grant
    Filed: August 17, 2008
    Date of Patent: August 7, 2012
    Assignees: CSEM Centre Suisse d'Electronique et de Mictrotechnique SA, Epispeed
    Inventors: Hans Von Känel, Rolf Kaufmann