Abstract: A decrease in output power due to a foreign matter present on a base at the time of forming a thin film solid electrolyte layer is limited, and an increase in yield even when an area of a fuel battery cell is increased, is obtained. The fuel battery cell has a membrane electrode assembly including a lower electrode layer, first and second solid electrolyte layers, and an upper electrode layer formed on a support substrate. An interface between the first and second solid electrolyte layers is flat as compared with an interface between the lower electrode layer and the solid electrolyte layer, and the second solid electrolyte layer has a thickness at which a leakage current between the first solid electrolyte layer and the second solid electrolyte layer is less than an allowable value even when an output voltage of the fuel battery cell is generated.

Abstract: The present invention aims to provide a fuel battery system improved in reliability by accurately detecting when a fuel electrode gas or an air electrode gas has leaked. A fuel battery cell according to the present invention includes a first electrode, an electrolyte membrane, and a second electrode which are layered on a support substrate. Further, at least any one of the first electrode, the electrolyte membrane, and the second electrode is electrically isolated by an insulating member to form a first region and a second region. The insulating member is disposed at a position where the insulating member does not overlap with an opening portion of the support substrate (refer to FIG. 3).

Abstract: A preferred aspect of the present invention is a fuel cell stack provided with a plurality of fuel cells each including a solid electrolyte layer and first and second electrode layers formed across the solid electrolyte layer. The fuel cells are stacked with the first or second electrode layers of adjacent cells facing each other. A common flow path for supplying a first gas to both of the first electrode layers facing each other is formed in an area where the first electrode layers face each other. A common flow path for supplying a second gas to both of the second electrode layers facing each other is formed in an area where the second electrode layers face each other. A connection electrode is formed at the end of the fuel cell. At least some of the stacked cells are connected in series via the connection electrode.

Abstract: An object of the present invention is to provide a fuel cell that obtains high output density and prevents stress application to the cell during stack assembling and breakage. The fuel cell is equipped with a unit cell including a structure in which an electrolyte layer is sandwiched between an anode electrode layer and a cathode electrode layer. The unit cell is disposed between a first member and a second member. An intermediate substrate is disposed between the first member and the second member. The unit cell is supported at the outer peripheral portion thereof by the intermediate substrate. The width of the electrolyte layer is the maximum width or less of a hollow portion formed between at least one of the first member and the second member and the unit cell.

Abstract: A fuel cell 1 includes a silicon substrate 2, a porous support material layer 5, a plurality of holes 60 or columns 40, and a stacked body. The stacked body includes an upper electrode layer 10, a solid electrolyte layer 100 and a lower electrode layer 20. The upper electrode layer 10 is also formed on a surface parallel to a main surface of the silicon substrate 2 in a manner of being continuous to the upper electrode layer 10 formed in the plurality of holes 60 or columns 40, or the lower electrode layer 20 is also formed on a surface parallel to the main surface of the silicon substrate 2 in a manner of being continuous to the lower electrode layer 20 formed in the plurality of holes 60 or columns 40. The stacked body is supported by the porous support material layer 5 in at least upper end portions and lower end portions of the plurality of holes 60 or columns 40.

Abstract: An object of the present invention is to provide a fuel cell that maintains electric generation efficiency of the fuel cell and that has high reliability in which an electrolyte film is not easily damaged. The fuel cell according to the present invention includes a stress adjusting layer covering an opening above a support substrate, and the stress adjusting layer has tensile stress with respect to the support substrate and has a columnar crystal structure in which a grain boundary extends along a direction parallel to a film thickness direction (see FIG. 2).

Abstract: An object of the present invention is to provide a fuel battery cell of a high power generation output by increasing an area of an effective power generation region contributing to power generation while ensuring mechanical strength of the fuel battery cell. The fuel battery cell according to the present invention is provided with a first and a second insulating films between a support substrate and a first electrode. The support substrate has a first opening, the first insulating film has a second opening, and the second insulating film has a third opening. An opening area of the first opening is larger than that of the second opening, and an opening area of the third opening is larger than that of the second opening (see FIG. 2).

Abstract: An object of the invention is to increase the output power of a solid oxide fuel cell by making a lower electrode layer porous so as to form a three-phase interface and reducing a thickness of a solid electrolyte layer to 1 micrometer or less. A fuel cell according to the invention includes a first electrode layer at a position where an opening formed in a board is covered, and a solid electrolyte layer having a thickness of 1000 nm or less. At least a part of a region of the first electrode layer covering the opening is porous (see FIG. 5).

Abstract: The present invention aims to reduce a failure in a fuel cell module and reduce manufacturing costs by specifying and taking countermeasures against cells in short-circuit failure from among fuel cells manufactured on a substrate by using a thin-film deposition process. In a fuel cell array according to the present invention, each fuel cell includes a solid electrolyte layer between a first electrode layer and a second electrode layer. A first wiring is connected to the second electrode layer, and a second wiring is connected to the first electrode layer through a connection element. The connection element is formed by sandwiching a conductive layer between two electrodes (refer to FIG. 8).

Abstract: Provided is a highly reliable fuel cell that improves power generation efficiency of the fuel cell and that is less likely to cause damage to an electrode and an electrolyte film. The fuel cell includes a support substrate (2, 3) having a region in which a support portion having a mesh-like shape in a plan view is provided, a first electrode 4 on the support substrate, an electrolyte film 5 on the first electrode, and a second electrode 6 on the electrolyte film. The first electrode includes a first thin film electrode 4A formed in a manner of covering at least the region, and a first mesh-like electrode 4B connected to the first thin film electrode and provided corresponding to the support portion. The first mesh-like electrode 4B has a film thickness larger than that of the first thin film electrode and has a mesh-like shape in a plan view.

Abstract: The present invention aims to provide a fuel battery system improved in reliability by accurately detecting when a fuel electrode gas or an air electrode gas has leaked. A fuel battery cell according to the present invention includes a first electrode, an electrolyte membrane, and a second electrode which are layered on a support substrate. Further, at least any one of the first electrode, the electrolyte membrane, and the second electrode is electrically isolated by an insulating member to form a first region and a second region. The insulating member is disposed at a position where the insulating member does not overlap with an opening portion of the support substrate (refer to FIG. 3).

Abstract: According to one embodiment, provided is an information processing system including a parent device and a plurality of child devices. The child device constitutes at least a portion of at least one device selected from a function approximator and an annealing machine, each of the parent devices and the plurality of child devices include a communication interface, and the communication interface is at least one selected from a wireless communication interface and a wired communication interface including an analog circuit. Data to be processed by the child device is transmitted from the parent device to at least one of the plurality of child devices, and an output of at least one node of the child device is transmitted to at least one of the parent device and the other child devices.

Abstract: Provided is a solid oxide fuel cell having high power generation efficiency and being operable at low temperature. A fuel cell of the present invention includes a cathode electrode, an anode electrode, and a solid electrolyte layer disposed between the cathode electrode and the anode electrode and formed from polycrystalline zirconia or polycrystalline ceria doped with divalent or trivalent positive ions and having proton conductivity, in which the cathode electrode and the solid electrolyte layer are stacked with a first oxygen ion blocking layer interposed therebetween.

Abstract: Provided is a highly reliable fuel cell that improves power generation efficiency of the fuel cell and that is less likely to cause damage to an electrode and an electrolyte film. The fuel cell includes a support substrate (2, 3) having a region in which a support portion having a mesh-like shape in a plan view is provided, a first electrode 4 on the support substrate, an electrolyte film 5 on the first electrode, and a second electrode 6 on the electrolyte film. The first electrode includes a first thin film electrode 4A formed in a manner of covering at least the region, and a first mesh-like electrode 4B connected to the first thin film electrode and provided corresponding to the support portion. The first mesh-like electrode 4B has a film thickness larger than that of the first thin film electrode and has a mesh-like shape in a plan view.

Abstract: A gas sensor capable of stably detecting a gas concentration with a high reliability even under a high temperature environment is provided. The gas sensor includes an element unit having a capacitance value changing in accordance with a gas concentration, an inductor forming a resonant circuit in cooperation with the element unit, a phase detection circuit detecting a phase difference between a standard frequency and a resonant frequency of the resonant circuit, and a feedback unit supplying, to the element unit, a voltage changing in accordance with the phase difference detected by the phase detection circuit. The capacitance value of the element unit is controlled by the voltage from the feedback unit so as to reduce the phase difference between the resonant frequency and the standard frequency, and a gas concentration detection output is output based on the phase difference.

Abstract: In a gas sensor using a first FET-type sensor for a sensor unit, a gas density measurement unit measures a gas density of gas to be detected at a predetermined time on the basis of a first threshold change as a difference between a first threshold voltage applied to a first gate layer when a first source-drain current is a first threshold current while the gas to be detected is not present in the atmosphere and a second threshold voltage applied to the first gate layer when the first source-drain current is the first threshold current at the predetermined time while the gas to be detected is present in the atmosphere, and a temporal differentiation of the first threshold change.

Abstract: A sensor element includes a sensor FET provided in a main surface of a semiconductor substrate, a cavity provided in the sensor FET and into which a detection target gas is introduced, and an ion pump provided over the cavity. By laminating the ion pump over the sensor FET via the cavity, a part of a front surface of a gate layer is exposed to the cavity, and a part of a lower surface of an ion pump electrode is exposed to the cavity. When the gate layer comes into contact with the detection target gas, a work function changes, so that gas concentration can be detected.

Abstract: A gas sensor capable of stably detecting a gas concentration with a high reliability even under a high temperature environment is provided. The gas sensor includes an element unit having a capacitance value changing in accordance with a gas concentration, an inductor forming a resonant circuit in cooperation with the element unit, a phase detection circuit detecting a phase difference between a standard frequency and a resonant frequency of the resonant circuit, and a feedback unit supplying, to the element unit, a voltage changing in accordance with the phase difference detected by the phase detection circuit. The capacitance value of the element unit is controlled by the voltage from the feedback unit so as to reduce the phase difference between the resonant frequency and the standard frequency, and a gas concentration detection output is output based on the phase difference.

Abstract: A sensor element includes a sensor FET provided in a main surface of a semiconductor substrate, a cavity provided in the sensor FET and into which a detection target gas is introduced, and an ion pump provided over the cavity. By laminating the ion pump over the sensor FET via the cavity, a part of a front surface of a gate layer is exposed to the cavity, and a part of a lower surface of an ion pump electrode is exposed to the cavity. When the gate layer comes into contact with the detection target gas, a work function changes, so that gas concentration can be detected.

Abstract: There is provided a field effect transistor type gas sensor, the gas sensor including a substrate, an oxide film on the substrate, a gate electrode on the oxide film, a body electrode which is disposed on the substrate, a first switch that changes a voltage which is applied to the gate electrode, and a second switch that changes a voltage which is applied to the body electrode. The gate electrode and the first switch are connected with each other through an electrical wire.