Abstract: An integrated circuit (IC) device includes a bottom semiconductor device, a top semiconductor device over the bottom semiconductor device in a thickness direction of the IC device, and a multilayer structure between the bottom semiconductor device and the top semiconductor device in the thickness direction. The multilayer structure includes a lower dielectric layer over the bottom semiconductor device, an upper dielectric layer over the lower dielectric layer, and an interlayer metal structure between the lower dielectric layer and the upper dielectric layer. The interlayer metal structure is electrically coupled to at least one of the bottom semiconductor device or the top semiconductor device.

Abstract: The present application provides an air purifier comprising a main body, wherein the main body comprises: a housing, wherein an interior of the housing is hollow, an air inlet is formed at one end of the housing, an air outlet is formed at the other end of the housing, and positions of the air inlet and the air outlet are interchangeable; a fan mounted in the housing and used for sucking outside air from one end of the housing or for sucking outside air from the other end of the housing; a photocatalyst member mounted in the housing; and ultraviolet light-emitting members mounted in the housing, so that ultraviolet light emitted by the ultraviolet light-emitting members can effectively irradiate the photocatalyst member.

Abstract: A system for controlling operation of an electric device includes the electric device, at least one contactless sensor module connected to the electric device, and a wearable item equipped with a sensor-readable tag configured for contactless interaction with the contactless sensor of the electric device. The tag is configured for movement with the wearable item into a plurality of different positions relative to the contactless sensor, and the contactless sensor is configured to sense different sensor readings in response to movement of the tag into the plurality of different positions. The electric device is configured to enter a first operating mode in response to the contactless sensor sensing a first position of the tag, and to enter a second operating mode in response to the contactless sensor sensing a second position of the tag.