Abstract: A semiconductor device includes a semiconductor element having an Ni—V electrode and a conductor, the semiconductor element and the conductor being bonded via Sn-based lead-free solder. In the semiconductor device, an Sn—V compound layer and an (Ni, Cu)3Sn4 compound layer adjacent to the Sn—V compound are formed adjacent to an interface between the semiconductor element and the Sn-based lead-free solder. A manufacturing method for a semiconductor device according to the present invention includes: causing the Sn-based lead-free solder and the Ni—V electrode to react with each other to form an Sn—V layer and an (Ni, Cu)3Sn4 compound layer; and following formation of the Sn—V layer, leaving an unreacted layer of the Ni—V electrode, the unreacted layer having not reacted with the Sn-based lead-free solder, intact.

Abstract: A novel functional panel that is highly convenient or highly reliable is provided. The functional panel includes a first pixel. The first pixel includes a first element, a color conversion layer, and a first functional layer. The first functional layer is positioned between the first element and the color conversion layer. The first element has a function of emitting light and contains gallium nitride. The color conversion layer has a function of converting the color of light emitted from the first element into a different color. The first functional layer includes a first insulating film and a pixel circuit. The first insulating film includes a region positioned between the pixel circuit and the first element, and has an opening. The pixel circuit includes a first transistor. The first transistor includes a first oxide semiconductor film and is electrically connected to the first element through the opening.

Abstract: A semiconductor device capable of charging that is less likely to cause deterioration of a power storage device is provided. The amount of a charging current is adjusted in accordance with the ambient temperature. Charging under low-temperature environments is performed with a reduced charging current. When the ambient temperature is too low or too high, the charging is stopped. Measurement of the ambient temperature is performed with a memory element using an oxide semiconductor. The use of a memory element using an oxide semiconductor enables measurement of the ambient temperature and retention of the temperature information to be performed at the same time.

Abstract: Disclosed is a method of using a computer to support an expert meeting for interpretation of genetic information of a patient by a plurality of medical persons, the method including acquiring a test result of gene panel testing that analyzes genetic information of the patient; and outputting an operation screen that enables schedule setting of the expert meeting, based on meeting time according to the test result.

Abstract: An object of one embodiment of the present invention is to provide a novel display device or a display system. Another object of one embodiment of the present invention is to provide a display device or a display system which can be manufactured at low cost and can provide various functions to a user. A pixel includes light-emitting elements whose emission colors are different from each other, a light-emitting element IR, a light-receiving element PS, and an infrared light sensor IRS. An image of a fundus of an eye is captured using the light-emitting element emitting an infrared light as a light source, and imaging is performed by the light-receiving element IRS. A substrate of a display panel is manufactured using a single crystal Si substrate capable of microfabrication and higher integration.

Abstract: A novel display device is provided. The display device includes a plurality of pixels each including a light-emitting device, a sensor device, a first circuit device, and a second circuit device. The light-emitting device and the sensor device are provided in a first layer. The first circuit device is provided in a second layer. The second circuit device is provided in a third layer. The light-emitting device includes a lower electrode, an upper electrode, and a light-emitting layer provided between the lower electrode and the upper electrode. The sensor device has a function of detecting light emitted from the light-emitting device. The first circuit device has a function of driving the light-emitting device or the sensor device. The second circuit device has a function of performing an arithmetic operation based on information output from the first circuit device. The first layer is provided over the second layer. The second layer is provided over the third layer.

Abstract: An optical device includes an optical element including a liquid crystal cell configured to distribute light emitted from a light source, a power supply part configured to generate first and second potentials, a control signal generation circuit part configured to generate a control signal that controls a pulse width of each of the first and second potentials, and a switch circuit part configured to output a first potential signal including the first potential with a first pulse width and the second potential with a second pulse width based on the control signal. The liquid crystal cell includes a first substrate on which first and second transparent electrodes are alternately arranged in a first direction, and a second substrate on which third and fourth transparent electrodes are alternately arranged in a second direction. The first potential signal is input to the first transparent electrode.

Abstract: An electrostatic separation method includes: applying voltage between a lower electrode at a bottom portion of or in the raw material layer and an upper electrode above the raw material layer, generating an electric field between electrodes; fluidizing the raw material layer and bringing conductive particles and the lower electrode into contact in the raw material layer charging only the conductive particles wherein their polarity becomes the same as the lower electrode; generating polarity, the same as the upper electrode, by dielectric polarization on a conveyor belt downward-facing conveyance surface passing through a capture region above the raw material layer and under the upper electrode, the conveyance surface including a nonconductor; separates charged conductive particles from the raw material layer surface by electrostatic force and adhering conductive particles to the conveyor belt conveyance surface; and separating and collecting the particles from the conveyance surface that moved outside the ele

Abstract: A semiconductor device with a novel structure is provided. The semiconductor device includes an oscillation circuit including a first coil, a second coil, a first capacitor, a second capacitor, a first transistor, and a second transistor and a frequency correction circuit including a third capacitor, a fourth capacitor, a third transistor, a fourth transistor, and a switching circuit. The switching circuit has a function of controlling a conduction state or a non-conduction state of the third transistor and the fourth transistor. The frequency correction circuit is provided above the oscillation circuit and has a function of adjusting an oscillation frequency of the oscillation circuit. The first transistor and the second transistor each include a semiconductor layer containing silicon in a channel formation region. The third transistor and the fourth transistor each include a semiconductor layer containing an oxide semiconductor in a channel formation region.

Abstract: A display device capable of displaying high-quality images can be provided. A display device includes a first light-emitting element, a second light-emitting element, a first protective layer, a second protective layer, and a gap. The first light-emitting element includes a first lower electrode, a first EL layer over the first lower electrode, a first upper electrode over the first EL layer, and the second light-emitting element includes a second lower electrode, a second EL layer over the second lower electrode, and a second upper electrode over the second EL layer. The first light-emitting element and the second light-emitting element are adjacent to each other. The first protective layer is provided over the first light-emitting element and the second light-emitting element and includes a region in contact with the side surface of the first EL layer and the side surface of the second EL layer. The second protective layer is provided over the first protective layer.

Abstract: An imaging device having a three-dimensional integration structure is provided. A first structure including a transistor including silicon in an active layer or an active region and a second structure including an oxide semiconductor in an active layer are fabricated. After that, the first and second structures are bonded to each other so that metal layers included in the first and second structures are bonded to each other; thus, an imaging device having a three-dimensional integration structure is formed.

Abstract: An arithmetic device and an electronic device having small power consumption is provided. An arithmetic device and an electronic device capable of high-speed operation is provided. An arithmetic device and an electronic device capable of suppressing heat generation is provided. The arithmetic device includes a first arithmetic portion and a second arithmetic portion. The first arithmetic portion includes a first CPU core and a second CPU core. The second arithmetic portion includes a first GPU core and a second GPU core. The CPU cores each have a power gating function and each include a first data retention circuit electrically connected to a flip-flop. The first GPU core includes a second data retention circuit capable of retaining an analog value and reading out the analog value as digital data of two or more bits. The second GPU core includes a third data retention circuit capable of retaining a digital value and reading out the digital value as digital data of one bit.

Abstract: A high-definition or high-resolution display apparatus is provided. The display apparatus includes a first insulating layer, a second insulating layer, a first conductive layer, a second conductive layer, a first light-emitting device, and a second light-emitting device. The top surfaces of the first insulating layer, the first conductive layer, and the second conductive layer are level or substantially level with one another. The first light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode over the first conductive layer. The second light-emitting device includes a second pixel electrode, a second light-emitting layer, and the common electrode over the second conductive layer. The second insulating layer covers a side surface of each of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer.

Abstract: An object is to provide an electronic device capable of recognizing a user's facial feature accurately. A glasses-type electronic device includes a first optical component, a second optical component, a frame, an imaging device, a feature extraction unit, and an emotion estimation unit. The frame is in contact with a side surface of the first optical component and a side surface of the second optical component. The imaging device is in contact with the frame and has a function of detecting part of a user's face. The feature extraction unit has a function of extracting a feature of the user's face from the detected part of the user's face. The emotion estimation unit has a function of estimating information on the user from the extracted feature.

Abstract: A multifunctional display apparatus with high resolution is provided. The display apparatus includes a first pixel; the first pixel includes a first light-emitting device, a second light-emitting device, and a first light-receiving device; the first light-emitting device includes a first light-emitting layer; the second light-emitting device includes a second light-emitting layer; the second light-emitting device has a function of emitting white light; the first light-emitting device has a function of emitting visible light of a color different from that of the second light-emitting device; the first light-receiving device has a function of sensing light emitted from the first light-emitting device; a side surface of the first light-emitting layer faces a side surface of the second light-emitting layer; and the distance between the side surface of the first light-emitting layer and the side surface of the second light-emitting layer is less than or equal to 8 ?m.

Abstract: An electronic apparatus includes a plurality of contacts electrically connectable to an accessory and arranged in a first direction orthogonal to a direction in which the accessory is attached. The contacts include an attachment detection contact to detect an attachment of the accessory to the electronic apparatus, and a communication request contact for a communication request from the accessory to the electronic apparatus. The attachment detection and communication request contacts are disposed between a contact closest one end and a contact closest to another end in the first direction. The attachment detection contact is disposed between the communication request contact and the contact closest to the one end. In the first direction, a distance between the attachment detection contact and the communication request contact is shorter than that between the communication request contact and the contact closest to the other end.

Abstract: A high-resolution display device in which delay of input signals to pixels is reduced is provided. In the display device, a first layer, a second layer, and a third layer are formed in this order from the bottom. The first layer includes a driver circuit and a plurality of first wirings, the second layer includes a plurality of first contact portions, and the third layer includes a pixel array and a plurality of second wirings. The pixel array includes a plurality of pixel circuits. The plurality of second wirings are parallel to each other and extended in the column direction of the pixel array, and the plurality of pixel circuits are electrically connected to the plurality of second wirings. The driver circuit includes a plurality of output terminals positioned along a first direction. The plurality of first wirings are extended perpendicular to the first direction, and the plurality of output terminals are electrically connected to the plurality of first wirings.

Abstract: A high-resolution display device is provided. A display device having both high display quality and high resolution is provided. The display device includes a first light-emitting element and a second light-emitting element. The first light-emitting element includes a first pixel electrode, a first EL layer, and a common electrode. The second light-emitting element includes a second pixel electrode, a second EL layer, and the common electrode. An insulating layer containing an inorganic insulating material is provided between the first pixel electrode and the second pixel electrode. The insulating layer includes a first region overlapping with the first EL layer, a second region overlapping with the second EL layer, and a third region positioned between the first region and the second region. A side surface of the first EL layer and a side surface of the second EL layer are positioned over the insulating layer to face each other.

Abstract: A battery protection circuit with a novel configuration and a power storage device including the battery protection circuit are provided. The battery protection circuit includes a switch circuit for controlling charge and discharge of a battery cell; the switch circuit includes a mechanical relay, a first transistor, and a second transistor; the switch circuit has a function of controlling electrical connection between a first terminal and a second terminal; the mechanical relay has a function of breaking electrical connection between the first terminal and the second terminal; the first transistor has a function of supplying first current between the first terminal and the second terminal; the second transistor has a function of supplying second current between the first terminal and the second terminal; and the first current is higher than the second current.

Abstract: A high-resolution display device and a fabrication method thereof are provided. The display device includes a first insulating layer; a light-emitting element and a first conductive layer over the first insulating layer; a first layer over the first conductive layer; a second conductive layer over the first layer; a second insulating layer over the light-emitting element, the second conductive layer, and the first insulating layer; and a third conductive layer over the second insulating layer. The light-emitting element includes a fourth conductive layer, a second layer over the fourth conductive layer, a third layer over the second layer, and a fifth conductive layer over the third layer.