Abstract: The present invention relates to a novel antireflective coating composition for forming an underlayer for a photoresist comprising an acid generator and a novel siloxane polymer, where the siloxane polymer comprises at least one absorbing chromophore and at least one self-crosslinking functionality of structure (1), where m is 0 or 1, W and W? are independently a valence bond or a connecting group linking the cyclic ether to the silicon of the polymer and L is selected from hydrogen, W? and W, or L and W? are combined to comprise a cycloaliphatic linking group linking the cyclic ether to the silicon of the polymer. The invention also relates to a process for imaging the photoresist coated over the novel antireflective coating composition and provides good lithographic results. The invention further relates to a novel siloxane polymer, where the siloxane polymer comprises at least one absorbing chromophore and at least one self-crosslinking functionality of structure (1).

Abstract: A beam deflector including a driving source for providing a rotation force, a beam deflection unit rotatably arranged on the driving source to deflect and scan an incident beam, and a cover member configured to cover the driving source and the beam deflection unit. The cover member has an aluminum foam layer located thereon to reduce vibration and noise occurring when the driving source and the beam deflection unit rotate.

Abstract: A tandem laser scanning unit (LSU) is provided. The tandem LSU includes a light source, a beam deflector, and an optical scanning lens. The beam deflector rotates on a light-emitting path of the light source to simultaneously deflect different light beams obliquely incident at a predetermined angle to each other within a sub-scanning plane substantially parallel to the rotational axis of the beam deflector. The optical scanning lens allows the light beams deflected by the beam deflector to be condensed on corresponding photosensitive drums. The optical scanning lens includes at least one sub-scanning cross-section having an aspherical surface to reduce the curvature of a scanning line. Using the tandem LSU, the distortion and curvature of the scanning line are corrected while providing an oblique incidence optical system having advantages in terms of manufacturing costs and driving efficiency.

Abstract: A beam deflector including a driving source for providing a rotation force, a beam deflection unit rotatably arranged on the driving source to deflect and scan an incident beam, and a cover member configured to cover the driving source and the beam deflection unit. The cover member has an aluminum foam layer located thereon to reduce vibration and noise occurring when the driving source and the beam deflection unit rotate.

Abstract: Provided is a system having a heat source unit, and a first heat releasing member arranged on the heat source unit or at a location near the heat source unit, to convert heat into a far infrared ray and radiate the far infrared ray. The provided system uses the heat releasing member formed of a material for converting heat into a far infrared ray and radiate the far infrared ray and vice versa, thus the heat is efficiently exhausted to the outside without increasing the inner temperature of the unit.

Abstract: A light scanning unit, which can prevent contamination using a photocatalytic layer, and an image forming apparatus employing the same. The light scanning unit includes a light source to switch on and off to generate at least one beam that corresponds to an image signal, a beam deflector to deflect and scan the at least one beam emitted by the light source, a housing containing the light source and the beam deflector, a transparent cover installed on the housing to protect internal elements within the housing and to transmit the at least one beam deflected and scanned by the beam deflector, and a photocatalytic layer formed on at least one surface of the transparent cover to be activated by an incident beam having a predetermined wavelength to decompose organic materials thereon.

Abstract: The present invention relates to novel photoacid generators.

Abstract: The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such catalyst includes a component represented by the following formula IA: wherein R and R′ independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl or organosilyl radical; R1, R2, and R3 independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl radical; M is a group IIIB, IVB, VB, VIB, VIIB or VIII transition metal; T independently represents a univalent anionic ligand such as a hydrogen atom, or a substituted or unsubstituted hydrocarbyl, halogeno, aryloxido, arylorganosilyl, alkylorganosilyl, amido, arylamido, phosphido, or arylphosphido group, or two T groups taken together represent an alkylidene or a cyclometallated hydrocarbyl bidentate ligand; L independently represents a sigma donor

Abstract: The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such catalyst includes a component represented by the following formula IA: 1

Abstract: The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such catalyst includes a component represented by the following formula 1A: wherein R and R′ independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl or organosilyl radical; R1, R2, and R3 independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl radical; M is a group IIIB, IVB, VB, VIB, VIIB or VIII transition metal; T independently represents a univalent anionic ligand such as a hydrogen atom, or a substituted or unsubstituted hydrocarbyl halogeno, aryloxido, arylorganosilyl, alkyloriganosilyl, amido, arylamido, phosphido, or arylphosphido group, or two T groups taken together represent an alkylidene or a cyclometallated hydrocarbyl bidentate ligand; L independently represents a sigma donor