Abstract: A crosslinked structure-containing polyolefin porous substrate is provided. The crosslinked structure-containing polyolefin porous substrate has a crosslinked structure including polymer chains interconnected directly with one another, wherein the polyolefin porous substrate includes, in a height direction extending from one surface to the other surface, a first region contacted with the one surface and a second region extended from an outside of the first region toward the other surface. Polyolefin contained in the first region and polyolefin contained in the second region have a difference in crosslinking degree of 10% or more. A method for manufacturing the crosslinked structure-containing polyolefin porous substrate is also provided. Even though the separator including the crosslinked structure-containing polyolefin porous substrate has a crosslinked structure, it shows a low shutdown temperature and a high meltdown temperature.

Abstract: A separator for a lithium secondary battery, a method of making the same, and a lithium secondary battery including the same is disclosed herein. In some embodiments, a separator for a lithium secondary battery including a porous polyolefin substrate having a tan(?) of 0.3 or less. The tan(?) is determined by Formula 1 at a temperature of 230° C. and an angular frequency of 0.1 rad/s: tan(?)=G?/G???[Formula 1] wherein G? is a storage modulus of the polyolefin and G? is a loss modulus of the polyolefin. The separator has a low viscosity but high elasticity at high temperature, maintains strength at high temperature, and has resistance against external force at high temperature. A lithium secondary battery including the separator has improved safety.

Abstract: A crosslinked polyolefin separator having a ratio (A/B) of storage modulus G? (A) to loss modulus G? (B) of 2 or more, at a range of the frequency of the crosslinked polyolefin separator of 1 rad/s or less, in the frequency-loss/storage modulus curve. The crosslinked polyolefin separator is controlled to have a high ratio of storage modulus to loss modulus, and thus maintains its elasticity even at high temperature. Therefore, it is possible to provide a separator having improved safety.

Abstract: Disclosed are a crosslinked separator for a lithium secondary battery which comprises a crosslinked polyolefin porous substrate including a plurality of fibrils and pores formed by the fibrils entangled with one another, wherein polyolefin chains forming the fibrils are crosslinked directly with one another; and shows a change in tensile strength of 20% or less in the machine direction, as compared to a non-crosslinked separator including a polyolefin porous substrate before crosslinking, and a method for manufacturing the same. The crosslinked separator for a lithium secondary battery has excellent thermal safety, while not adversely affecting the other physical properties.

Abstract: A polyolefin separator is provided in the present disclosure. The polyolefin separator includes a polyolefin porous substrate including a plurality of fibrils and pores formed by the fibrils draped across one another. A coating layer surrounding the outer side of the fibrils is contained in the polyolefin porous substrate and the coating layer includes a crosslinked polymer, wherein the polyolefin separator having the coating layers has a change in air permeability of 20% or less and a change in basis weight of 4% or less, as compared to the polyolefin porous substrate. A method for manufacturing the polyolefin separator and a secondary battery including the polyolefin separator are also disclosed.

Abstract: The present invention is an object to provide fund management system which manages a network fund or capital by inheriting the Korean indigenous traditions, such as Pumashi, Dure or Gye, based on the co-existence, respect and consideration of others. The present invention relates to a network fund management system comprising: a user terminal accessible to a service proving service through the network; a service providing server to provide fund management; a database (DB) to store necessary data for the fund management; and an online shopping mall connected to the service providing server through the network.

Abstract: A media playing device detects an event for an object included in a web document is detected before the event occurs, and groups objects for each event if it was to actually occur, and the event is applied to other objects temporarily replacing the grouped objects. Thus, the amount of resources required for image rendering can be significantly reduced.

Abstract: A media playing device detects an event for an object included in a web document is detected before the event occurs, and groups objects for each event if it was to actually occur, and the event is applied to other objects temporarily replacing the grouped objects. Thus, the amount of resources required for image rendering can be significantly reduced.

Abstract: Disclosed is a separator for an electrochemical device including a porous polymer film, and a porous coating layer including at least one type of particles of inorganic particles and organic particles and binder polymer, the porous coating layer formed on one surface or both surfaces of the porous polymer film, wherein the porous polymer film has a structure in which multiple fibrils arranged parallel to the surface of the film are stacked in layers, and a diameter of the fibril disposed at the side of one surface of the film where the porous coating layer is formed is smaller than a diameter of the fibril disposed at a central part in a thickness-wise direction of the film, and an electrochemical device comprising the same.

Abstract: Disclosed is a separator for an electrochemical device including a porous polymer film, and a porous coating layer including at least one type of particles of inorganic particles and organic particles and binder polymer, the porous coating layer formed on one surface or both surfaces of the porous polymer film, wherein the porous polymer film has a structure in which multiple fibrils arranged parallel to the surface of the film are stacked in layers, and a diameter of the fibril disposed at the side of one surface of the film where the porous coating layer is formed is smaller than a diameter of the fibril disposed at a central part in a thickness-wise direction of the film, and an electrochemical device comprising the same.

Abstract: Provided is a method and apparatus for cleaning a photomask. The photomask including a first region and a second region surrounding the first region, a pattern to be protected disposed on the first region, and a material to be removed exists on the second region. A cleaning liquid is sprayed from an inside region of the second region toward an outer region of the second region to remove the material, and a gas is blown from the first region toward the second region to protect the pattern.

Abstract: In a method of manufacturing a photomask pattern, a light-shielding layer pattern and an anti-reflective layer pattern are formed sequentially on a transparent substrate. Oxidation and nitridation processes are performed on a sidewall of the light-shielding layer pattern to form a protection layer pattern on a lateral portion of the light-shielding layer pattern.

Abstract: Provided is a method and apparatus for cleaning a photomask. The photomask including a first region and a second region surrounding the first region, a pattern to be protected disposed on the first region, and a material to be removed exists on the second region. A cleaning liquid is sprayed from an inside region of the second region toward an outer region of the second region to remove the material, and a gas is blown from the first region toward the second region to protect the pattern.

Abstract: In a method of manufacturing a photomask pattern, a light-shielding layer pattern and an anti-reflective layer pattern are formed sequentially on a transparent substrate. Oxidation and nitridation processes are performed on a sidewall of the light-shielding layer pattern to form a protection layer pattern on a lateral portion of the light-shielding layer pattern.

Abstract: Provided is a method and apparatus for cleaning a photomask. The photomask including a first region and a second region surrounding the first region, a pattern to be protected disposed on the first region, and a material to be removed exists on the second region. A cleaning liquid is sprayed from an inside region of the second region toward an outer region of the second region to remove the material, and a gas is blown from the first region toward the second region to protect the pattern.

Abstract: A method of analyzing ions adsorbed on a surface of a mask for pattern formation of a semiconductor device, and an apparatus using the same are disclosed. The ion analyzing method includes: filling a heating container within a main chamber with a predetermined amount of a solvent; immersing a mask in the solvent-filled heating container; raising an internal pressure of the chamber to a predetermined level by supplying gas into the chamber; separating ions from a surface of the mask by heating the solvent within the heating container at a predetermined temperature for a predetermined period; and analyzing the ions by collecting the solvent.

Abstract: A composition for cleaning a phase shift mask, including an organic acid ammonium salt, wherein a base ionization constant (Kb) of organic acid ions is larger than an acid ionization constant (Ka) of ammonium ions, hydrogen peroxide, and water, and associated methods.

Abstract: A method of repairing a phase shift mask includes exposing upper and side surfaces of the phase shift pattern of the mask, selectively forming a passivation layer on the surfaces of the exposed phase shift patterns, and then cleaning the phase shift mask on which the passivation layers are formed. The repairing of the phase shift mask is carried out in the midst of a series of photolithographic exposure processes in which the phase shift mask is used to transfer an image to a photoresist layer or layers. After the photomask is cleaned, a determination is made as to whether the transmittance of the phase shift pattern is above a threshold value.

Abstract: A method of analyzing ions adsorbed on a surface of a mask for pattern formation of a semiconductor device, and an apparatus using the same are disclosed. The ion analyzing method includes: filling a heating container within a main chamber with a predetermined amount of a solvent; immersing a mask in the solvent-filled heating container; raising an internal pressure of the chamber to a predetermined level by supplying gas into the chamber; separating ions from a surface of the mask by heating the solvent within the heating container at a predetermined temperature for a predetermined period; and analyzing the ions by collecting the solvent.

Abstract: A unit for preventing a substrate from drying includes a transfer arm for transferring a substrate from a first bath containing a first cleaning solution to a second bath containing a second cleaning solution, a spraying part connected to the transfer arm, wherein the spraying part sprays a drying prevention solution from an upper portion of the substrate to a lower portion of the substrate, and a drainage container connected to the transfer arm, wherein the drainage container receives the drying prevention solution.