Abstract: A semiconductor design optimization system that includes: a data base configured to store design data, a training data preprocessing unit configured to preprocess the design data and generate training data, a data learning unit configured to generate a physical property prediction model by training using the training data, a physical property prediction unit configured to generate predicted physical property data including information associated with predicted physical property values for each region of a semiconductor device to be fabricated, wherein the physical property prediction unit is configured to input, into the physical property prediction model, input data including information associated with design drawings of the semiconductor device to be fabricated, and a layout generator configured generate a design layout optimized to distribute the predicted physical property values for each region of the semiconductor device to be fabricated by modifying the design drawings based on the predicted physical

Abstract: A semiconductor package may include a lower structure, a first semiconductor chip on the lower structure, the first semiconductor chip including a hot spot, a second semiconductor chip horizontally spaced apart from the first semiconductor chip on the lower structure, and a connection chip in the lower structure and connecting the first and second semiconductor chips to each other. The hot spot may vertically overlap the connection chip.

Abstract: The present invention relates to a method of non-destructively measuring a thickness of a reinforcement membrane, and more particularly, to a method of non-destructively measuring a thickness of a hydrogen ion exchange reinforcement membrane for a fuel cell, in which the reinforcement membrane has a symmetric three-layer structure including a reinforcement base layer and pure water layers disposed at opposing sides of the reinforcement base layer, including performing total non-destructive inspection and omitting a process of analyzing a position by means of a thickness peak of a power spectrum of the respective layers of the reinforcement membrane.

Abstract: A compressor includes a suction unit for sucking fluid, a compression unit for compressing the fluid sucked through the suction unit, a discharge unit for discharging the fluid compressed in the compression unit, an electric mechanism unit connected to the compression unit and driving the compression unit, and an overload protecting apparatus installed at the discharge unit and stopping operation of the electric mechanism unit if a temperature of the fluid discharged through the discharge unit is higher than a pre-set temperature.

Abstract: A compressor includes a suction unit for sucking fluid, a compression unit for compressing the fluid sucked through the suction unit, a discharge unit for discharging the fluid compressed in the compression unit, an electric mechanism unit connected to the compression unit and driving the compression unit, and an overload protecting apparatus installed at the discharge unit and stopping operation of the electric mechanism unit if a temperature of the fluid discharged through the discharge unit is higher than a pre-set temperature.

Abstract: A scroll compressor having a reversion preventing device includes: a driving unit inserted in a closed casing and generating a driving force; a compressing unit for compressing and discharging a fluid when the driving unit is driven; a rotational shaft rotatably supported by a main frame and a sub-frame that are fixed at the casing and transmitting the rotational force generated from the driving unit to the compressing unit; and a reversion preventing device installed at one side of the rotational shaft and stopping the rotation of the rotational shaft when the driving unit is rotated in a direction opposite to the direction in which the driving unit compresses the fluid. Since the reversion preventing device is installed at the rotational shaft in order to stop the rotation of the rotational shaft if the rotational shaft is rotated in the reverse direction, blocking the driving unit from being rotated in the reverse direction.

Abstract: A scroll compressor having a reversion preventing device includes: a driving unit inserted in a closed casing and generating a driving force; a compressing unit for compressing and discharging a fluid when the driving unit is driven; a rotational shaft rotatably supported by a main frame and a sub-frame that are fixed at the casing and transmitting the rotational force generated from the driving unit to the compressing unit; and a reversion preventing device installed at one side of the rotational shaft and stopping the rotation of the rotational shaft when the driving unit is rotated in a direction opposite to the direction in which the driving unit compresses the fluid. Since the reversion preventing device is installed at the rotational shaft in order to stop the rotation of the rotational shaft if the rotational shaft is rotated in the reverse direction, blocking the driving unit from being rotated in the reverse direction.