Abstract: An image sensor includes a stack structure including an active pixel region including a plurality of pixels, a pad region on at least one side of the active pixel region, and a first substrate having a first surface and a second surface that is opposite to the first surface, the first substrate including a plurality of photoelectric conversion regions respectively corresponding to the plurality of pixels, a meta-optical structure on the first surface of the first substrate and including a plurality of dielectric layers on the first surface of the first substrate, and nanoprism patterns in at least one dielectric layer of the plurality of dielectric layers and in the active pixel region, a pad opening in the meta-optical structure and a passivation layer at least partially covering a sidewall of the pad opening.

Abstract: An image sensor includes: a substrate including a plurality of photoelectric conversion regions; capacitor structures on the substrate; a capacitor insulating layer in a spacing between the capacitor structures; and external via structures in the spacing between the capacitor structures and penetrating the capacitor insulating layer.

Abstract: According to an exemplary embodiment of the present disclosure, disclosed is a method to train a model. The method to train the model may include: computing an input image using a neural network model; computing an accuracy of a prediction box by comparing the prediction box output from the neural network model and a ground truth box; and training the neural network model by performing backpropagation on the neural network model based on the accuracy.

Abstract: An air conditioner is provided. The air conditioner may include an electronic device, which may include a control component to drive a refrigerant cycle, and a cooling tube through which a refrigerant to cool the electronic device may flow. The cooling tube may be coupled to one side of the electronic device. The electronic device may include an electronic case having at least one through hole, an electronic board to which the control component may be coupled, the electronic board being disposed in the electronic case, at least one heat transfer plate disposed to contact the control component, the at least one heat transfer plate being coupled to the electronic case, and at least one heat sink, to which the cooling tube may be coupled, the at least one heat sink contacting the at least one heat transfer plate through the at least one through hole.

Abstract: An air conditioner is provided. The air conditioner may include an electronic device, which may include a control component to drive a refrigerant cycle, and a cooling tube through which a refrigerant to cool the electronic device may flow. The cooling tube may be coupled to one side of the electronic device. The electronic device may include an electronic case having at least one through hole, an electronic board to which the control component may be coupled, the electronic board being disposed in the electronic case, at least one heat transfer plate disposed to contact the control component, the at least one heat transfer plate being coupled to the electronic case, and at least one heat sink, to which the cooling tube may be coupled, the at least one heat sink contacting the at least one heat transfer plate through the at least one through hole.