Abstract: An equipment diagnosis system and method, which use abnormal data and normal data of equipment and accurately and effectively perform diagnosis on the equipment, are provided. The equipment diagnosis system includes a data acquisition unit to acquire time series data of equipment, a preprocessing unit convert the time series data into frequency data including a temporal component through a Fourier transform, a deep learning unit to perform deep learning through a convolution neural network (CNN) by using the frequency data, and a diagnosis unit to determine a state of the equipment to be a normal state or a breakdown state based on the deep learning.

Abstract: A method of inspecting a wafer quality includes injecting ions into a wafer using an ion beam in an ion implantation process, collecting data about the ion beam by using a Faraday cup, extracting first data from the data about the ion beam, extracting a wafer section from the first data, calculating a feature value of a wafer from the wafer section, and evaluating a quality of the wafer by comparing the feature value with a predetermined threshold or range.

Abstract: A flexible display device includes a display panel configured to display an image, and a polarizing plate on the display panel. The flexible display device includes a folding area and a non-folding area. A first thickness of the polarizing plate in the folding area is greater than a second thickness of the polarizing plate in the non-folding area.

Abstract: A method for determining a position of a fault of equipment includes receiving a plurality of sound source signals from a plurality of sound source inputting apparatuses, determining an abnormal operation of the equipment by analyzing at least one sound source signal among the sound source signals, and extracting abnormal sound source signals from the sound source signals. The abnormal sound source signals are indicative of abnormal operation of the equipment. The method further includes determining a position of the abnormal operation based on a time difference between the abnormal sound source signals.

Abstract: A flexible display device includes a display panel configured to display an image, and a polarizing plate on the display panel. The flexible display device includes a folding area and a non-folding area. A first thickness of the polarizing plate in the folding area is greater than a second thickness of the polarizing plate in the non-folding area.

Abstract: A flexible display device includes a display panel configured to display an image, and a polarizing plate on the display panel. The flexible display device includes a folding area and a non-folding area. A first thickness of the polarizing plate in the folding area is greater than a second thickness of the polarizing plate in the non-folding area.

Abstract: A method of cleaning semiconductor equipment includes monitoring a state of a fluid in a pipeline of the semiconductor equipment, constructing a database by using data collected through the monitoring, diagnosing a state of the pipeline based on the data collected through the monitoring and stored in the database, and cleaning the pipeline by using an ultrasound wave when the state of the pipeline is diagnosed as being abnormal. The pipeline is cleaned by using at least two ultrasound wave generators.

Abstract: A method of inspecting a wafer quality includes injecting ions into a wafer using an ion beam in an ion implantation process, collecting data about the ion beam by using a Faraday cup, extracting first data from the data about the ion beam, extracting a wafer section from the first data, calculating a feature value of a wafer from the wafer section, and evaluating a quality of the wafer by comparing the feature value with a predetermined threshold or range.

Abstract: An equipment diagnosis system and method, which use abnormal data and normal data of equipment and accurately and effectively perform diagnosis on the equipment, are provided. The equipment diagnosis system includes a data acquisition unit to acquire time series data of equipment, a preprocessing unit convert the time series data into frequency data including a temporal component through a Fourier transform, a deep learning unit to perform deep learning through a convolution neural network (CNN) by using the frequency data, and a diagnosis unit to determine a state of the equipment to be a normal state or a breakdown state based on the deep learning.

Abstract: A method for determining a position of a fault of equipment includes receiving a plurality of sound source signals from a plurality of sound source inputting apparatuses, determining an abnormal operation of the equipment by analyzing at least one sound source signal among the sound source signals, and extracting abnormal sound source signals from the sound source signals. The abnormal sound source signals are indicative of abnormal operation of the equipment. The method further includes determining a position of the abnormal operation based on a time difference between the abnormal sound source signals.

Abstract: A flexible display device includes a display panel configured to display an image, and a polarizing plate on the display panel. The flexible display device includes a folding area and a non-folding area. A first thickness of the polarizing plate in the folding area is greater than a second thickness of the polarizing plate in the non-folding area.

Abstract: An amplifier circuit having an output delay that is selectively changed in accordance with a common mode voltage level. A replica delay circuit adapted for use within an internal clock generator include such an amplifier circuit. The amplifier circuit includes a first amplifier generating internal signal in response to input signals changes a common mode voltage level of the internal signals in response to control signals. The amplifier also includes a second amplifier comparing voltage levels of the internal signals, generating an output signal in accordance with a comparison result, and changing a duty cycle of the output signal when the common mode voltage level of the internal signals is changed.

Abstract: An amplifier circuit having an output delay that is selectively changed in accordance with a common mode voltage level. A replica delay circuit adapted for use within an internal clock generator include such an amplifier circuit. The amplifier circuit includes a first amplifier generating internal signal in response to input signals changes a common mode voltage level of the internal signals in response to control signals. The amplifier also includes a second amplifier comparing voltage levels of the internal signals, generating an output signal in accordance with a comparison result, and changing a duty cycle of the output signal when the common mode voltage level of the internal signals is changed.

Abstract: Provided is a phase mixer that compensates for frequency variations and process, voltage, and temperature (PVT) variations, and automatically controls slew rates of input signals according to frequency variations and PVT variations. The phase mixer includes: a mixer, which receives two signals having different phases via input terminals and interpolates the two signals; a frequency detector, which detects frequency variations of an input signal; an integrator, which converts an output signal output from the frequency detector into a DC voltage; and two variable capacitors, which are connected to input terminals of the mixer and have variable capacitances that change in response to the DC voltage. The frequency detector, which is a pulse generator, includes an inversion/delay unit, which inverts and delays the input signal and a NAND gate, which performs a NAND operation on the input signal and a signal output from the inversion/delay unit.

Abstract: A heat dissipation system for a semiconductor device having a plurality of semiconductor chips, includes a heat dissipation member which cools the semiconductor chips, an exterior heat dissipation member which is provided opposite to the heat dissipation member, engaged to the semiconductor device and connected to an electrical ground, an electric conductor member which is provided between the heat dissipation member and the exterior heat dissipation member, and electrically connects the heat dissipation member and the exterior heat dissipation member to each other, and a thermal conductivity insulating member which is inserted between the heat dissipation member and the exterior heat dissipation member. Accordingly, the resistance against common mode noise is increased. Furthermore, the heat dissipation efficiency of the semiconductor device is also increased. The head dissipation system improves the heat dissipation efficiency of the semiconductor device to control noise.

Abstract: A motor power supply having an inrush current protection mode, a motor drive mode, an overvoltage protection mode, and a dynamic braking mode. In the inrush protection mode, a first resistance limits an inrush current to a capacitor which smoothes a rectifier output to provide DC power to an inverter during the motor drive mode. In the overvoltage protection mode, the first resistance is used in conjunction with a switching element to controllably discharge an overvoltage which may occur across the capacitor due to regenerated energy from the motor passing back through the inverter. During the drive mode, the inverter input is connected with the DC power and during the dynamic braking mode, the inverter input is connected with a second resistance which dissipates the energy regenerated by the motor. A controller controls a multi-contact relay and the switching element to implement the various modes of operation.

Abstract: Provided is a phase mixer that compensates for frequency variations and process, voltage, and temperature (PVT) variations, and automatically controls slew rates of input signals according to frequency variations and PVT variations. The phase mixer includes: a mixer, which receives two signals having different phases via input terminals and interpolates the two signals; a frequency detector, which detects frequency variations of an input signal; an integrator, which converts an output signal output from the frequency detector into a DC voltage; and two variable capacitors, which are connected to input terminals of the mixer and have variable capacitances that change in response to the DC voltage. The frequency detector, which is a pulse generator, includes an inversion/delay unit, which inverts and delays the input signal and a NAND gate, which performs a NAND operation on the input signal and a signal output from the inversion/delay unit.

Abstract: An amplifier circuit having an output delay that is selectively changed in accordance with a common mode voltage level. A replica delay circuit adapted for use within an internal clock generator include such an amplifier circuit. The amplifier circuit includes a first amplifier generating internal signal in response to input signals changes a common mode voltage level of the internal signals in response to control signals. The amplifier also includes a second amplifier comparing voltage levels of the internal signals, generating an output signal in accordance with a comparison result, and changing a duty cycle of the output signal when the common mode voltage level of the internal signals is changed.

Abstract: A motor power supply having an inrush current protection mode, a motor drive mode, an overvoltage protection mode, and a dynamic braking mode. In the inrush protection mode, a first resistance limits an inrush current to a capacitor which smoothes a rectifier output to provide DC power to an inverter during the motor drive mode. In the overvoltage protection mode, the first resistance is used in conjunction with a switching element to controllably discharge an overvoltage which may occur across the capacitor due to regenerated energy from the motor passing back through the inverter. During the drive mode, the inverter input is connected with the DC power and during the dynamic braking mode, the inverter input is connected with a second resistance which dissipates the energy regenerated by the motor. A controller controls a multi-contact relay and the switching element to implement the various modes of operation.

Abstract: A heat dissipation system for a semiconductor device having a plurality of semiconductor chips, includes a heat dissipation member which cools the semiconductor chips, an exterior heat dissipation member which is provided opposite to the heat dissipation member, engaged to the semiconductor device and connected to an electrical ground, an electric conductor member which is provided between the heat dissipation member and the exterior heat dissipation member, and electrically connects the heat dissipation member and the exterior heat dissipation member to each other, and a thermal conductivity insulating member which is inserted between the heat dissipation member and the exterior heat dissipation member. Accordingly, the resistance against common mode noise is increased. Furthermore, the heat dissipation efficiency of the semiconductor device is also increased. The head dissipation system improves the heat dissipation efficiency of the semiconductor device to control noise.