Patents Assigned to Sensirion AG
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Patent number: 9140740Abstract: The present sensor chip comprises a substrate. A plurality of electrode elements is arranged at a first level on the substrate with at least one gap between neighboring electrode elements. A metal structure is arranged at a second level on the substrate, wherein the second level is different from the first level. The metal structure at least extends over an area of the second level that is defined by a projection of the at least one gap towards the second level.Type: GrantFiled: December 6, 2013Date of Patent: September 22, 2015Assignee: Sensirion AGInventors: Rene Hummel, Ralph Steiner-Vanha, Ulrich Bartsch
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Publication number: 20150239321Abstract: A sensor module for integration within a seat assembly is provided. The sensor module comprises a temperature and/or humidity sensor (21) and a separate sensor support (51) for mechanically supporting said temperature and/or humidity sensor. The sensor support is configured to be arranged on or in a support layer below an air-permeable cover of the seat assembly.Type: ApplicationFiled: February 24, 2015Publication date: August 27, 2015Applicant: Sensirion AGInventors: Christoph MÜLLER, Michael GÖTZE, Markus GRAF
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Patent number: 8838037Abstract: A mobile phone comprises a casing and a cavity in the casing. A humidity sensor is arranged for measuring a humidity in the cavity. In response to a trigger, a control unit analyzes a humidity signal supplied by the humidity sensor. A result of the analysis is presented via an output unit. Such device allows for measuring a humidity of a user's skin in case the user covers a window in the casing connected to the cavity by a body part.Type: GrantFiled: February 16, 2012Date of Patent: September 16, 2014Assignee: Sensirion AGInventors: Dominik Niederberger, Johannes Schumm, Pascal Gerner, Markus Graf
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Publication number: 20140244198Abstract: In a method for calibrating a portable first electronic device (1) comprising a first chemical sensor, a determination is carried out whether the first electronic device is located near a second electronic device comprising a second chemical sensor. If this is the case and if optionally other criteria are fulfilled, readings of the first and second chemical sensor are compared. Subject to the comparison, calibration values for the first chemical sensor are derived.Type: ApplicationFiled: January 30, 2014Publication date: August 28, 2014Applicant: Sensirion AGInventor: Felix MAYER
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Patent number: 8815623Abstract: A differential pressure sensor comprises a membrane arranged over a cavity on a semiconductor substrate. A lid layer is arranged at the top side of the device and comprises an access opening for providing access to the top side of the membrane. A channel extends laterally from the cavity and intersects with a bore. The bore is formed by laser drilling from the bottom side of the substrate and provides access to the bottom side of the membrane. The bore extends all through the substrate and optionally into the lid layer.Type: GrantFiled: August 5, 2009Date of Patent: August 26, 2014Assignee: Sensirion AGInventors: Johannes Bühler, Felix Mayer, Matthias Streiff, René Hummel, Robert Sunier
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Patent number: 8807962Abstract: The pump is provided with a plurality of pumping chambers and electrically activatable valves. An elastic membrane is arranged in each pumping chamber and divides the same into a first and a second chamber section. Each valve is connected to the second chamber section of a pumping chamber. When a pressure drop is applied over the valve and the valve is activated (i.e. opened), the pressure in the second chamber section changes, which causes the membrane to move, which in turn leads to a change of the volumes of both chamber sections. This e.g. allows to pump well-defined amounts of fluid from the chamber sections to a drug dispensing device.Type: GrantFiled: September 18, 2007Date of Patent: August 19, 2014Assignee: Sensirion AGInventor: Felix Mayer
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Patent number: 8802568Abstract: In a method for manufacturing a chemical sensor with multiple sensor cells, a substrate is provided and an expansion inhibitor is applied to the substrate for preventing a sensitive material to be applied to an area on the substrate for building a sensitive film of a sensor cell to expand from said area. The sensitive material is provided and the sensitive film is built by contactless dispensing the sensitive material to said area.Type: GrantFiled: September 27, 2012Date of Patent: August 12, 2014Assignee: Sensirion AGInventors: Felix Mayer, Markus Graf, Lukas Burgi
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Publication number: 20140216129Abstract: A mobile device comprises a CPU operating a display and other user interface circuitry. Further, it comprises a gas sensor as well as a sensor hub connecting the gas sensor and other sensors to the CPU. In order to save power, the device can be brought into a low-power operating mode, where the CPU is idling or switched-off and the gas sensor itself has a low-power and a high-power operating mode. However, even in this low-power operating mode, the sensor hub still monitors for changes of the signal from the gas sensor and wakes the device up if such a change is detected.Type: ApplicationFiled: January 22, 2014Publication date: August 7, 2014Applicant: Sensirion AGInventors: Roger SCHMIDLIN, Markus GRAF
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Publication number: 20140219452Abstract: A chemical sensor (11) of a portable electronic device (1) is authenticated by reading a cryptographic sensor identifier from a memory of the chemical sensor and transmitting sensor-related data from the portable electronic device to a remote evaluation unit (6), the sensor-related data comprising the cryptographic sensor identifier. The sensor-related data may be transmitted in encrypted form. The sensor-related data may be complemented with a device identifier for the portable electronic device.Type: ApplicationFiled: January 30, 2014Publication date: August 7, 2014Applicant: Sensirion AGInventors: Felix MAYER, Johannes BUHLER
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Publication number: 20140212979Abstract: A measuring device is provided for determining the type and/or concentration a gaseous analyte from a set of analytes in a gaseous carrier. It comprises a housing having a passage to a cavity. A gas sensor with a heated metal-oxide sensing layer is arranged in the cavity. In order to gain a better understanding of the type of the analyte, diffusion effects are exploited by taking into account that the diffusion process through the passage as well as the catalytic reaction rate at the metal-oxide sensing layer depend on the type of the analyte. These material parameters can be determined by taking several measurements in a non-steady state of the concentration of the analyte within the cavity or while varying the reaction rate.Type: ApplicationFiled: January 22, 2014Publication date: July 31, 2014Applicant: Sensirion AGInventors: Lukas BURGI, Frank ROCK
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Patent number: 8791532Abstract: The sensor assembly comprises a substrate (1), such as a flexible printed circuit board, and a sensor chip (2) flip-chip mounted to the substrate (1), with a first side (3) of the sensor chip (2) facing the substrate (1). A sensing area (4) and contact pads (5) are integrated on the first side (3) of the sensor chip (2) and located in a chamber (17) between the substrate (1) and the sensor chip (2). Chamber (17) is bordered along at least two sides by a dam (16). Underfill (18) and/or solder flux is arranged between the sensor chip (2) and the substrate (1), and the dam (16) prevents the underfill from entering the chamber (17). An opening (19) extends from the chamber to the environment and is located between the substrate (1) and the sensor chip (2) or extends through the sensor chip (2).Type: GrantFiled: November 18, 2009Date of Patent: July 29, 2014Assignee: Sensirion AGInventors: Markus Graf, Werner Hunziker, Franziska Brem, Felix Mayer
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Patent number: 8771598Abstract: A system for storing ammonia comprises gas detector that is able to detect gases other than ammonia. The system further comprises thermally activatable ammonia stores, which can be activated to release ammonia upon heating. When the ammonia stores are not heated, the system is below ambient pressure and any leak will cause external gas to enter the system. Therefore, the gas detector is used to detect the presence of such external gas, which allows to detect leaks. The gas detector may be embodied as a thermal detector using a single heater and two temperature sensors for detecting a gas flow as well as external gas.Type: GrantFiled: December 15, 2009Date of Patent: July 8, 2014Assignee: Sensirion AGInventors: Felix Mayer, Mark Hornung, Lukas Bürgi, Pascal Gerner
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Patent number: 8736002Abstract: The sensor assembly comprises a substrate (1), such as a flexible printed circuit board, and a sensor chip (2) flip-chip mounted to the substrate (1), with a first side (3) of the sensor chip (2) facing the substrate (1). A sensing area (4) and contact pads (5) are integrated on the first side (3) of the sensor chip (2). Underfill (18) and/or solder flux is arranged between the sensor chip (2) and the substrate (1). The sensor chip (2) extends over an edge (12) of the substrate (1), with the edge (12) of the substrate (1) extending between the contact pads (5) and the sensing area (4) over the whole sensor chip (2). A dam (16) can be provided along the edge (12) of the substrate (1) for even better separation of the underfill (18) and the sensing area (4). This de sign allows for a simple alignment of the sensor chip on the substrate (1) and prevents underfill (18) from covering the sensing area (4).Type: GrantFiled: November 18, 2009Date of Patent: May 27, 2014Assignee: Sensirion AGInventors: Markus Graf, Werner Hunziker, Franziska Brem, Felix Mayer
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Publication number: 20140134053Abstract: A portable electronic device is described with a housing, a chemical sensor arranged inside the housing and adapted to measure a property of at least one analyte, and a duct terminating at an opening in the housing for exposing the chemical sensor to the fluid to be analyzed, and an actuator to generate a flow within the duct.Type: ApplicationFiled: November 14, 2012Publication date: May 15, 2014Applicant: Sensirion AGInventors: Felix Mayer, Lukas Burgi
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Publication number: 20140055346Abstract: An input device for triggering a function of an electronic device comprises a humidity sensor (12), and a control unit (11). The control unit (11) analyzes a humidity signal (RH) supplied by the humidity sensor (12) and provides a trigger signal (C) subject to the analysis of the humidity signal (RH) for triggering the function of the electronic device (3). In such way, the function of the electronic device can simply be controlled by blowing at the input device (1).Type: ApplicationFiled: December 29, 2011Publication date: February 27, 2014Applicant: Sensirion AGInventors: Dominic Boni, Robert Rupprecht, Andrea Wuest, Pascal Gerner
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Patent number: 8643361Abstract: The present idea refers to a needle head, its use in a probe arrangement, and a method for electrically contacting multiple electronic components. The needle head comprises a body with a lower surface, needle electrodes emerging from the lower surface, and multiple outlets arranged in the lower surface. A channel is arranged between an inlet in the body and the outlets for conveying a medium from the inlet to the outlets. By this means, electronic components arranged in close distance under the lower surface of the needle head are directly exposed to the medium which provides a test environment during a test of the electronic components.Type: GrantFiled: May 19, 2011Date of Patent: February 4, 2014Assignee: Sensirion AGInventors: Markus Graf, Hans Eggenberger, Martin Fitzi, Christoph Schanz
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Patent number: 8633047Abstract: The present sensor chip comprises a substrate. A plurality of electrode elements is arranged at a first level on the substrate with at least one gap between neighbouring electrode elements. A metal structure is arranged at a second level on the substrate, wherein the second level is different from the first level. The metal structure at least extends over an area of the second level that is defined by a projection of the at least one gap towards the second level.Type: GrantFiled: August 29, 2012Date of Patent: January 21, 2014Assignee: Sensirion AGInventors: Réne Hummel, Ralph Steiner-Vanha, Ulrich Bartsch
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Publication number: 20130305822Abstract: The present sensing device comprises a sensor (1) for providing sensor data representative of a quantity to be measured. Together with the sensor (1) a radio frequency interface (2) for transmitting the sensor data is arranged in a casing (3). The casing (3) comprises an opening (33) for exposing a sensitive element (11) of the sensor (1) to an environment of the casing (3). A seal (4) is provided for sealing the opening (33) against an interior (3) of the casing (3). The sensing device can be used as autonomous humidity detector for detecting humidity e.g. in cars under test.Type: ApplicationFiled: December 16, 2011Publication date: November 21, 2013Applicant: SENSIRION AGInventors: Markus Graf, Pascal Gerner, Christian Landis, Matthias Streiff
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Publication number: 20130249499Abstract: In a method for operating a portable electronic device a recharge process for recharging a rechargeable energy storage of the portable electronic device is detected. A heater is activated for heating a sensitive layer of a chemical sensor contained in the portable electronic device subject to the detection of the recharge process.Type: ApplicationFiled: March 6, 2013Publication date: September 26, 2013Applicant: Sensirion AGInventors: Markus GRAF, Moritz LECHNER
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Publication number: 20130199289Abstract: There is disclosed a flow sensor arrangement, comprising a main channel (1) for conveying a fluid, a bypass (2) connected to the main channel (1) for conveying a portion of the fluid supplied in the main channel (1), and a flow sensor (6) for measuring a flow of the fluid portion in the bypass (2). The bypass (2) branches off from the main channel (1) at an angle (?) of less than 90 degrees between an inlet section (21) of the bypass (2) and a supply section (11) of the main channel (1). By such design means, particles can be prevented from entering the bypass (2) by this adversely affecting the measurements.Type: ApplicationFiled: August 17, 2010Publication date: August 8, 2013Applicant: SENSIRION AGInventors: Mark Hornung, Felix Mayer, Claudia Kuttel