Abstract: An antenna structure includes an upper patch antenna, a lower patch antenna, a grounding layer, a transmission line layer, and a first feeding line and a second feeding line passing through the grounding layer. Each of the first feeding line and the second feeding line includes a first portion, a second portion and a third portion. The first portion is disposed between the lower patch antenna and the grounding layer and is perpendicular to the grounding layer. The second portion is disposed between the grounding layer and the transmission line layer and is perpendicular to the grounding layer. The third portion is disposed within the grounding layer and is parallel to the grounding layer. The third portion is coupled between the first portion and the second portion.

Abstract: An impedance calibration circuit includes a variable impedance circuit, a detection circuit and a control circuit. The variable impedance circuit includes conduction paths connected in parallel between an output terminal and a supply terminal coupled to a first supply voltage. The variable impedance circuit is configured to adjust an impedance at the output terminal by enabling one or more of the conduction paths according to a calibration code. The detection circuit is configured to detect a change in impedance of the conduction paths by applying a second supply voltage to a reference terminal through a detection path, and accordingly generate an input voltage at the reference terminal. An electric potential of the second supply voltage is equal to an electric potential of the first supply voltage. The control circuit is configured to compare the input voltage with reference voltages to generate the calibration code.

Abstract: A semiconductor structure includes a source/drain feature in the semiconductor layer. The semiconductor structure includes a dielectric layer over the source/drain feature. The semiconductor structure includes a silicide layer over the source/drain feature. The semiconductor structure includes a barrier layer over the silicide layer. The semiconductor structure includes a seed layer over the barrier layer. The semiconductor structure includes a metal layer between a sidewall of the seed layer and a sidewall of the dielectric layer, a sidewall of each of the silicide layer, the barrier layer, and the metal layer directly contacting the sidewall of the dielectric layer. The semiconductor structure includes a source/drain contact over the seed layer.

Abstract: A semiconductor device includes a semiconductor substrate, a first gate oxide layer, and a first source/drain doped region. The first gate oxide layer is disposed on the semiconductor substrate, and the first gate oxide layer includes a main portion and an edge portion having a sloping sidewall. The first source/drain doped region is disposed in the semiconductor substrate and located adjacent to the edge portion of the first gate oxide layer. The first source/drain doped region includes a first portion and a second portion. The first portion is disposed under the edge portion of the first gate oxide layer in a vertical direction, and the second portion is connected with the first portion.

Abstract: An eyeglass frame assembly includes temple mounting portions and temple units. Each temple mounting portion has front and rear faces and an engagement hole. Each temple unit includes a temple arm and a pivot member. The temple arm has a connection portion that is inserted into the engagement hole and that is provided with a pivot hole. The pivot member is pivoted to the connection portion and is mounted on the temple mounting portion, and has a pivot pin that is pivotally inserted into the pivot hole. The pivot member resides in the engagement hole and engages the front and rear faces of the respective one of the temple mounting portions.

Abstract: An eyeglass frame assembly includes temple mounting portions and temple units. Each temple mounting portion has front and rear faces and an engagement hole. Each temple unit includes a temple arm and a pivot member. The temple arm has a connection portion that is inserted into the engagement hole and that is provided with a pivot hole. The pivot member is pivoted to the connection portion and is mounted on the temple mounting portion, and has a pivot pin that is pivotally inserted into the pivot hole. The pivot member resides in the engagement hole and engages the front and rear faces of the respective one of the temple mounting portions.

Abstract: A pair of eyeglasses includes a pair of temple units, each including a main temple segment, a temple end piece, and an engaging mechanism. The temple end piece is disposed at an inner lateral side of the main temple segment and has a connecting segment disposed between a fastenable segment and a guide segment and swingably connected to the main temple segment. The temple end pieces of the temple units are movable between an engaging position, where the fastenable segments are fastened to the main temple segments via the engaging mechanisms, and a disengaging position, where the fastenable segments are disengaged from the main temple segments.

Abstract: A pair of eyeglasses includes a pair of temple units, each including a main temple segment, a temple end piece, and an engaging mechanism. The temple end piece is disposed at an inner lateral side of the main temple segment and has a connecting segment disposed between a fastenable segment and a guide segment and swingably connected to the main temple segment. The temple end pieces of the temple units are movable between an engaging position, where the fastenable segments are fastened to the main temple segments via the engaging mechanisms, and a disengaging position, where the fastenable segments are disengaged from the main temple segments.

Abstract: An eyeglass frame includes a lens frame with two opposite end portions, each having a top wall formed with a bow retaining hole, a bottom wall formed with a bow mounting hole, and an insert slot defined by the top and bottom walls. The bow mounting hole has a first hole portion aligned with the bow retaining hole, a second hole portion offset from the bow retaining hole, and a restricted intermediate hole portion intercommunicating the first and second hole portions. Each of the bows has one end formed with a mounting shaft which has a retaining protrusion and a mounting protrusion opposite to the retaining protrusion.