Patents Assigned to CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement
  • Publication number: 20190280688
    Abstract: A compensation device for compensating PVT variations of an analog and/or digital circuit. The compensation device includes a transistor having a first terminal, a second terminal, a third terminal, and a fourth terminal allowing to modify a threshold voltage of the transistor. The transistor is configured to be in saturation region. The voltage at the third terminal has a predetermined value and the difference between the voltage at the second terminal and the voltage at the third terminal has a predetermined value. A current generation module is configured to generate a current of a predetermined value. A compensation module is configured to force this current to flow between the first terminal and the third terminal by adjusting the voltage of the fourth terminal.
    Type: Application
    Filed: July 22, 2016
    Publication date: September 12, 2019
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement
    Inventors: David RUFFIEUX, Camilo Andrès SALAZAR GUTIERREZ, Marc PONS SOLÉ, Daniel SÉVERAC, Jean-Luc NAGEL, Alain-Serge PORRET
  • Publication number: 20190199051
    Abstract: An optical resonator (100) comprises an optical waveguide device (10) having an optical axis (OA) and extending with a longitudinal length between two waveguide end facets (11), resonator mirrors (13) being arranged for enclosing a resonator section (14) of the optical waveguide device (10), and a ferrule (20) having two ferrule facets (21), wherein the optical waveguide device (10) is mounted to the ferrule (20) and the ferrule (20) extends along the full longitudinal length of optical waveguide device (10). Furthermore, an optical apparatus (200) including the optical resonator (100) and a method of manufacturing the optical resonator (100) are described.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 27, 2019
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement
    Inventors: Tobias HERR, Steve LECOMTE
  • Patent number: 10324418
    Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions to obtain a deliberately lower stiffness, determining the stiffness of the balance spring formed in step a) in order to compensate for said missing thickness of material required to obtain the balance spring having the dimensions necessary for said predetermined stiffness.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 18, 2019
    Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et développement
    Inventors: Frederic Kohler, Jean-Luc Bucaille, Olivier Hunziker
  • Patent number: 10324417
    Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove a volume of material to obtain the balance spring having the dimensions necessary for said predetermined stiffness.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 18, 2019
    Assignee: CSeM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et développement
    Inventors: Philipp Niedermann, Olivier Dubochet
  • Publication number: 20180309010
    Abstract: A photovoltaic device is proposed comprising a silicon-based substrate (2) having a p-type or n-type doping, with an intrinsic buffer layer (4) situated on said substrate. A first silicon layer (6) of a first doping type is situated on predetermined regions (4a) of the intrinsic buffer layer. The first layer has interstices (5) between said predetermined regions (4a). The first silicon layer comprises at least partially a microcrystalline layer at its side away from the substrate. A microcrystalline silicon layer (8) of a second doping type is situated on said first silicon layer (6). A third silicon layer (10) of the second doping type is situated on said intrinsic buffer layer at the interstices, the third silicon layer being amorphous at its side facing said silicon-based substrate and comprising an at least partially microcrystalline layer portion to the side away from the intrinsic buffer layer.
    Type: Application
    Filed: November 1, 2016
    Publication date: October 25, 2018
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventors: Bertrand Paviet-Salomon, Andrea Tomasi, Matthieu Despeisse, Christophe Ballif
  • Publication number: 20180264491
    Abstract: An apparatus and method for precisely dispensing liquid fluid from a container are disclosed. The apparatus comprises a metering unit having a gas feedthrough channel with a first end extending in a gas containing part of the chamber and a second end opposite the first end extending outside the chamber, the metering unit further comprising a flow sensing assembly configured to measure a gas pressure differential ?p and/or gas flow V{dot over ( )} within the gas feedthrough channel and to introduce or release a determined volume of gas in the chamber to dispense a controlled volume of liquid from the chamber.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement
    Inventors: Jonas Goldowsky, Noa Schmid, Siegfried F. Graf, Helmut Knapp
  • Publication number: 20180190159
    Abstract: A tamper seal includes an optical waveguide arranged to guide a propagating light-beam along a propagation direction. First and second portions of the tamper seal are configured to be arranged on first and second parts, respectively, which are movable relative to each other. The first portion has an input coupler arranged to couple incident light into the optical waveguide, and the second portion has at least one output coupler arranged to couple out of the optical waveguide at least partially light guided in the optical waveguide. The input coupler, the optical waveguide, and the output coupler are configured to transmit light from the input coupler to the output coupler. The waveguide is configured to be disruptable and includes a layer having a distinctive appearance that is changed in response to an at least partial disruption of said optical waveguide.
    Type: Application
    Filed: February 27, 2018
    Publication date: July 5, 2018
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventors: Guillaume Basset, Marc Schnieper
  • Publication number: 20180067457
    Abstract: The present invention relates to a display module including a fixed frame and at least two substantially rigid display organs. The display organs each include a portion displaying a pattern, said display portions being complementary to one another such that it forms said pattern in at least one relative position of said display organs. Furthermore, at least one of the display organs is secured and movable relative to the frame via a deformable link at least between a first resting position, in which the display portions are separate from one another, and a display position, in which said display portions are counter-affixed to one another to form and display said pattern. Lastly, said display organ(s) movable relative to the frame cooperate with an actuating push-piece arranged to transmit a movement force of this display organ by elastic deformation around its deformable link(s) from said resting position toward said display position.
    Type: Application
    Filed: August 30, 2017
    Publication date: March 8, 2018
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventor: Francis Cardot
  • Publication number: 20180031752
    Abstract: A white light source includes an array of light emitting elements arranged to a light guide. A light in-coupling array is arranged so that each light emitting element faces a light in-coupling element to incouple in the light guide a portion of the divergent light beams so that the in-coupled angle of at least a part of the light rays of the in-coupled light beam is higher than 45°. An array of light homogenizing elements is arranged so that each light homogenizing element faces a light incoupling element and so that the deflection angle of at least a fraction of the incident part of the in-coupled light beam incident on each of said homogenizing elements is higher than 45°. The white light source provides a uniform outcoupled white light beam.
    Type: Application
    Filed: February 10, 2015
    Publication date: February 1, 2018
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventors: Rolando Ferrini, Oscar Fernandez, Guillaume Basset
  • Patent number: 9783719
    Abstract: A method of treatment of outdoor equipment for reducing ice adhesion thereon, the outdoor equipment defining a substrate on which a layer of linkers is intended to be coupled, the linkers being bi-functional and including: a first reacting group able to couple in a stable way in environmental conditions with the substrate, and a second reacting group able to generate a covalent bond stable in environmental conditions with polysaccharides, the method includes the steps of: coupling the linkers on at least an area of the equipment to obtain a layer of linkers coupled stably in environmental conditions with the substrate; and making react some polysaccharides on the layer of linkers to bind them with a covalent bond stable in environmental conditions with the second reacting group of the linkers and forming a layer of polysaccharides on the layer of linkers.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 10, 2017
    Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA RECHERCHE ET DEVELOPPEMENT
    Inventor: Emmanuel Scolan
  • Patent number: 9770771
    Abstract: A method for fabricating a micromechanical part from a substrate in which the part is fabricated by providing a plurality of fasteners between the part and the substrate, the fasteners being sacrificial, characterized in that the fasteners include at least one hinge at the end of each fastener located beside the part, and in that the method includes a step of breaking the sacrificial fasteners. The micromechanical parts employing this type of sacrificial fastener are also described.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 26, 2017
    Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA-RECHERCHE ET DEVELOPPEMENT
    Inventors: Francois Barrot, Remy Fournier, Laurent Giriens, Simon Henein, Sylvain Jeanneret, Johan Kruis
  • Patent number: 9739950
    Abstract: The present invention concerns a method for constructing a light coupling system wherein a grating is manufactured on the surface of a multimode waveguide and defines the entrance of the waveguide for an incident light beam, said grating comprising a repetition of patterns. The grating is defined by a set of parameters comprising: •grating period (P), separating two adjacent patterns, •grating depth (d) between the highest and the lowest point of the pattern, •incident angle mean value (?) of the incident light with respect to the waveguide. The method comprises a step of optimization of the set of parameters to obtain an optimized second set of parameters, in order to obtain a transmission efficiency (Ce) of the incident light into said waveguide for the first or the second diffractive order exceeding 35% for unpolarized light, or exceeding 50% for polarized light, at a given wavelength of the incident light.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: August 22, 2017
    Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA-RECHERCHE ET DÉVELOPPEMENT
    Inventors: Omar Sqalli, David Pires, Guillaume Basset, Martin Stalder
  • Publication number: 20170176941
    Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove, locally, a volume of material, in order to obtain the balance spring having the dimensions necessary for said predetermined stiffness.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 22, 2017
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et developpement
    Inventors: Frederic KOHLER, Jean-Luc BUCAILLE, Olivier HUNZIKER
  • Publication number: 20170176940
    Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove a volume of material to obtain the balance spring having the dimensions necessary for said predetermined stiffness.
    Type: Application
    Filed: November 17, 2016
    Publication date: June 22, 2017
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et developpement
    Inventors: Philipp NIEDERMANN, Olivier DUBOCHET
  • Publication number: 20170176942
    Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions to obtain a deliberately lower stiffness, determining the stiffness of the balance spring formed in step a) in order to compensate for said missing thickness of material required to obtain the balance spring having the dimensions necessary for said predetermined stiffness.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 22, 2017
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et developpement
    Inventors: Frederic KOHLER, Jean-Luc BUCAILLE, Olivier HUNZIKER
  • Publication number: 20170146958
    Abstract: In the present invention a new atomic clock is proposed comprising: at least one light source adapted to provide an optical beam, at least one photo detector and a vapor cell comprising a first optical window, said optical beam being directed through said vapor cell for providing an optical frequency reference signal, said photo detector being adapted to detect said optical frequency reference signal and to generate at least one reference signal, wherein—said atomic clock comprises a first optical waveguide arranged to said first optical window, said first optical waveguide being arranged to incouple at least a portion of said optical beam, said first optical waveguide being sized and shaped so that said first guided light beam is expanded,—a first outcoupler is arranged to outcouple at least a portion of said guided light beam to said vapor cell,—the thickness t of the atomic clock is smaller than 15 mm.
    Type: Application
    Filed: October 8, 2014
    Publication date: May 25, 2017
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventors: Benjamin Gallinet, Jacques Haesler, Steve Lecomte, Guillaume Basset
  • Publication number: 20170123122
    Abstract: An infrared transmitting cover sheet for receiving incident light having incident visible light and incident near infrared light. The infrared transmitting cover sheet includes: infrared transmission means arranged to transmit at least 65% of the incident near infrared light, through the infrared transmitting cover sheet, visible light transmission means arranged to transmit as less as possible incident visible light having wavelengths lower than 600 nm, excluding the wavelength of 700 nm, through the infrared transmitting cover sheet, and reflection means arranged to reflect a portion of the incident visible light to the side of the incident light.
    Type: Application
    Filed: April 10, 2015
    Publication date: May 4, 2017
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventors: Christophe BALLIF, Jordi ESCARRE PALOU, Laure-Emmanuelle PERRET-AEBI, Hengyu LI
  • Publication number: 20170033250
    Abstract: A solar photovoltaic module (1) intended to receive incident light, said incident light comprising incident visible light and incident near infrared light, visible light being defined as light having a wavelength between 380 nm and 700 nm, excluding 700 nm and near infrared light is defined as light having a wavelength between 700 nm and 2000 nm, characterized in that said solar photovoltaic module (1) comprises: —a photovoltaic element (2), sensitive to near-infra red light, —at least a first infrared transmitting cover sheet (4), arranged to one side of said photovoltaic element (2), comprising: —infrared transmission means arranged to transmit at least 65% of said incident infrared light through said infrared transmitting cover sheet, —visible light transmission means arranged to transmit as less as possible incident light having wavelengths lower than 600 nm, preferably lower than 650 nm, more preferably lower than 700 nm, excluding the wavelength of 700 nm, through said infrared transmitting cover sheet
    Type: Application
    Filed: April 10, 2015
    Publication date: February 2, 2017
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DÉVELOPPEMENT
    Inventors: Christophe Ballif, Jordi Escarre Palou, Laure-Emmanuelle Perret-Aebi, Hengyu Li
  • Publication number: 20160356956
    Abstract: A guided mode resonance device, comprising—a substrate,—a waveguide,—a grating structure associated with said waveguide, said grating structure being arranged to an incident surface of said substrate, said incident surface being intended to receive an incident light beam provided by at least one light source, said incident light beam having an incident angle, defined relative to the normal of said waveguide, said grating structure comprising at least one elementary structure comprising at least a first-type grating structure and at least a second-type grating structure,—wherein:—said waveguide is arranged to transfer light from_the first-type grating structures to the second-type grating structure and also to transfer light from the second-type grating structures to the first-type grating structure,—said first-type grating structure is arranged to couple out a first light beam,—said second-type grating structure is arranged to couple out a second light beam,—said first light beam having a different spectral d
    Type: Application
    Filed: December 23, 2013
    Publication date: December 8, 2016
    Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DEVELOPPEMENT
    Inventors: Laurent Davoine, Guillaume Basset
  • Publication number: 20160343921
    Abstract: The disclosure concerns an infrared emitter is provided comprising a metalized membrane emitting infrared light in operation. The membrane comprises a two dimensional array of infrared wavelength sized through-holes and to each side a thin metal layer comprising also an array of through-holes. The through-holes are arranged as a two-dimensional periodic array and each of said through-holes have a cross section having a maximum and a minimum dimension of less than any wavelength of the emitted infrared light. The peak wavelength of the emitted infrared light is proportional to the periodicity of the through-holes. At least one of the metal layers is connected to an electrical current source that provides an electrical current that heats at least one of the metal layers so that a narrow bandwidth and highly directive light beam of infrared light is emitted. The membrane is arranged on a membrane support and both are made of a material that resists to temperatures higher than 400°.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 24, 2016
    Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement
    Inventors: Ross Stanley, Branislav Timotijevic