Abstract: Disclosed is a heterojunction semiconductor flexible substrate in which an epitaxial oxide thin film layer is hetero-bonded to a thinned silicon substrate using a metal layer, a manufacturing method thereof, and the heterojunction semiconductor flexible substrate can be applied to sensor, actuator, transducer, or micro electro mechanical systems (MEMS) device using high functionality of the epitaxial oxide thin film layer of high quality as well as an electronic and/or optical device.

Abstract: The present disclosure relates to a test apparatus for a package-on-package type semiconductor package including a lower test socket mounted on a tester, and connected to a lower package to electrically connect the lower package to the tester; a pusher configured to be able to be moved vertically by receiving a driving force from a driving unit; an upper test socket mounted on the pusher, and having an electro-conductive part installed below the upper package to be electrically connected to the upper package; a vacuum picker mounted on the upper test socket to be able to vacuum-adsorb the lower package; and an inelastic insulating sheet installed between the upper test socket and the upper package, having a through hole formed at a position thereof corresponding to the terminal of the upper package and the electro-conductive part.

Abstract: The present invention relates to a motor driving control system and a control method thereof. The purpose of the present invention is to provide a motor driving control system and a control method thereof, which may change electric current limiting logic, which is applied to a BLDC motor for a cooling fan, in response to an operating speed of the motor to stably protect the motor from an overload in a low-speed driving state as well as an overload in a high-speed driving state.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: Disclosed herein is a once-through heat exchanger that includes a tube stack including a plurality of tubes, a plurality of heads connected to the tube stack via a connection module and configured to accommodate heated steam, the connector module comprising a plurality of tube connectors and configured to connect the tubes and the heads, and a manifold connected to the heads via a plurality of link pipes and configured to accommodate heated steam, wherein the connector module comprises a first tube connector and a second tube connector having different shapes.

Abstract: A test apparatus for testing image sensor packages. The test apparatus is configured to stably vacuum-absorb an image sensor package in a surface manner, wherein when a vacuum adsorption sheet having a package adsorption hole in the shape of a wide square surface is coupled to the bottom of the floating plate at which an upper socket is seated, a vacuum line is formed by connecting the cover vacuum hole of the pusher, the board vacuum hole of the upper circuit board, the plate vacuum hole of the floating plate, and the package adsorption hole of the vacuum adsorption sheet together.

Abstract: The present disclosure relates to a method of preparing a polymer, which includes: adding an alkyl-substituted aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization while continuously adding an alkyl-substituted aromatic vinyl-based monomer and a multifunctional initiator to the reactor, wherein the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is initiated when a polymerization conversion rate is 10 to 30%, and the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is terminated when a polymerization conversion rate is 70 to 80%.

Abstract: A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane exhibits low film resistance and low in-plane-direction swelling degree, and has a smaller film-thickness than a commercial film, and thus, can be used for various purposes. In addition, since the pore-filled ion exchange polyelectrolyte composite membrane is continuously manufactured through a roll-to-roll process, the manufacturing process is simple, and manufacturing costs can be greatly reduced.

Abstract: The present invention relates to a novel electrolyte and a secondary battery including the same. The present invention has an effect of providing a secondary battery having improved charging efficiency and output due to reduced charging resistance and having excellent long-term lifespan and high-temperature capacity retention rate.

Abstract: A display device includes: a display panel including a first light emitting area to emit a source light; a barrier wall on the display panel, and having a first opening corresponding to the first light emitting area; a first light control pattern in the first opening; and a light shielding pattern between the display panel and the barrier wall, and overlapping with the barrier wall and the first opening. The light shielding pattern overlaps with a portion of the first light control pattern.

Abstract: A water-cooled heat dissipation module assembly capable of cooling a power module of a vehicle driving inverter system using a battery or fuel cell. The water-cooled heat dissipation module assembly includes a housing unit provided in the form of a housing having an opening portion at least partially opened at one side thereof. The housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser.

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.

Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: An apparatus for testing a package-on-package type semiconductor package includes an upper test socket on which an upper package is mounted, the upper test socket being mounted on a pusher and connected to the lower package; a lower test socket mounted on a tester and connected to the lower package; and an adsorption pad coupled to the pusher and configured to adsorb and pressurize the lower package using a vacuum pressure, wherein the adsorption pad comprises a body part having a vacuum pressure passage formed therein; and an adsorption part having an adsorption hole corresponding to the vacuum pressure passage, and the body part is attached on a central portion of an upper surface of the adsorption part and an outer oil overflow-preventing part configured to trap silicon oil eluted from the body part is formed at an outer periphery the adsorption part.

Abstract: The present disclosure relates to a benzoselenophene-based compound, a method of preparing the benzoselenophene-based compound, and a pharmaceutical composition and antibody-drug conjugate including the benzoselenophene-based compound.

Abstract: The stator according to the present invention is characterized by comprising a stator core 11 including a base 111 of a circular shape, a teeth part 112 formed radially from the base 111, and a teeth end 113 extending to both sides in the circumferential direction at an end of the teeth part 112; an upper insulator 12 coupled to an upper part of the stator core 11, including an upper base insulating part 121 for insulating an upper part of the base 111, an upper teeth insulating part 122 formed radially in the outer circumferential direction of the upper base insulating part 121, for insulating the upper part of the teeth part 121, and an upper teeth end insulating part 123 located over the teeth end 113, protruding upward at an end of the upper teeth insulating part 122; a lower insulator 13 coupled to a lower part of the stator core 11, including a lower base insulating part 131 for insulating the lower part of the base 111, a lower teeth insulating part 132 formed radially in the outer circumferential dire

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: A manufacturing method of a positive electrode for a lithium secondary battery includes: a step of preparing a positive electrode in which a positive electrode active material layer including a lithium iron phosphate formed on a current collector; and a step of adsorbing an organic solvent to the positive electrode active material layer, the organic solvent including one or more of N-methyl-2-pyrrolidone (NMP), acetone, ethanol, propylene carbonate, ethylmethyl carbonate, ethylene carbonate, and dimethyl carbonate.