Seoul Semiconductor Co., Ltd.

Industry-University Cooperation Foundation Sunmoon University

Cebt Co., Ltd.

Dae Wook Kim

Ho Seob Kim

Da Hye Kim

Yoon Seop Lee

Tae Sik Oh

Jae Hyun Park

Byoung Kyu Park

Sang Hong Lee

Seung Joon Ahn

Seung Jun Ahn

Yang Sik Cho

Young Chul Kim

Seung-Joon Ahn

Ho Soeb Kim

Hyung Woo Kim

A light-emitting device includes a substrate including a first electrode group and a second electrode group, a first light emitting unit, a second light emitting unit, and a side wall. The first light emitting unit is provided on the upper surface of the substrate and electrically connected to the first electrode group. The second light emitting unit is provided on the upper surface of the substrate and electrically connected to the second electrode group. The side wall surrounds the first light-emitting unit and the second light-emitting unit. The first light emitting unit and the second light emitting unit are arranged side by side such that a separation space between the first light emitting unit and the second light emitting unit is smaller than a space between the second light emitting unit and an outer peripheral surface of the side wall.

Light emitting device and vehicular lamp comprising same

A light emitting device and a vehicular lamp are provided. The light emitting device comprises: a first light emitting unit; a second light emitting unit separated from the first light emitting unit; and a sidewall surrounding side surfaces of the first and second light emitting units while adjoining the side surfaces of the first and second light emitting units, wherein the first light emitting unit and the second light emitting unit emit light have different peak wavelengths.

A light emitting device including: a substrate; first and second light emitting units disposed on the substrate separate from each other and respectively including first and second light emitting diodes, on which first and second wavelength converters are respectively disposed; first and second bonding layers interposed between the substrate and the first and second light emitting units, respectively; a sidewall disposed surrounding and adjoining side surfaces of the first and second light emitting units; and a filler evenly disposed in the sidewall and capable of reflecting light from the first and second light emitting units, wherein the substrate includes plurality electrodes, wherein a first portion of the sidewall directly contacts both of the first light emitting diode and the second light emitting diode, and wherein a second portion of the sidewall separates and directly contacts the first wavelength converter and the second wavelength converter.

The present disclosure relates to a light-emitting device and a vehicular lamp including the same. The light-emitting device may include a light-emitting unit and a sidewall. The light emitting unit may include a light-emitting element. The sidewall may surround a side of the light-emitting unit and adjoin the side of the light-emitting unit. The light-emitting element may include at least two light-emitting cells grown on a single growth substrate and may be electrically connected to one another.

Light emitting device and vehicular lamp including the same

Disclosed is a micro-electron column including nanostructure tips each of which has a tubular, columnar, or blocky structure ranging in size from several nanometers to dozens of nanometers. In the micro-electron column, the nanostructure tips can easily emit electrons because a high electric field is generated at the end of the nanostructure tips when a voltage is applied to the nanostructure tips, and an induction electrode is disposed between the electron emitter and a source lens so as to help electrons emitted from the electron emitter to enter an aperture of a first lens electrode layer of the source lens, thereby realizing improved performance of the micro-electron column. In the micro-electron column, the size of the nanostructure tips may be larger than that of the aperture of a source lens.

Micro-electron column having an electron emitter improving the density of an electron beam emitted from a nano structure tip

Disclosed is an electrostatic quadrupole deflector for a microcolumn. The deflector includes an electron beam passage hole, deflecting electrodes to which a deflection voltage is applied, and floating electrodes to which the deflection voltage is not applied. The deflector is structurally stable and has a simple driving system. The deflector has good performance and characteristics.

Electrostatic quadrupole deflector for microcolumn

Disclosed herein is a microcolumn with a double aligner. The microcolumn is configured such that when an axis of an aperture of a limiting aperture is spaced apart from an original path of a particle beam, the path of the particle beam can be effectively compensated for in such a way that the path of the particle beam is aligned with the axis of the aperture of the limiting aperture by the double aligner. The microcolumn includes a source lens. The source lens includes at least two aligner layers which compensate for the path of the particle beam.

Micro-column with double aligner

Disclosed herein is a multi-particle beam column including electrode layer with eccentric apertures. The multi-particle beam column includes two or more particle beam columns each comprising a particle beam emission source, a deflector, and two or more electrode layers. The multi-particle beam column includes at least one electrode layer having one or more apertures that are eccentric from respective beam optical axes of the particle beam columns.

Multi-particle beam column having an electrode layer including an eccentric aperture

An ultra-miniaturized electron optical microcolumn is provided. The electron optical microcolumn includes an electron-emitting source emitting electrons using a field emission principle, an extraction electrode causing the emission of electrons from the electron-emitting source, a focusing electrode to which voltage is flexibly applied in response to a working distance to a target for regulating a focusing force of electron beams emitted from the electron-emitting source, an acceleration electrode accelerating electrons emitted by the extraction electrode, a limit electrode regulating an amount and a size of electron beams using electrons accelerated by the acceleration electrode, and a deflector deflecting electron beams towards the target.

Ultra-miniaturized electron optical microcolumn

The present invention relates to a method for improving focusing in an electron column that generates an electron beam. The method for controlling the focusing of an electron beam in according to the present invention reduces the spot size of the electron beam when the electron beam reaches a specimen, so that resolution can be increased and the line width of a pattern in a semiconductor lithography process can be reduced, with the result that the performance of the electron can be improved.

Method for focusing electron beam in electron column

The present invention provides a new extractor for a micro-column and an alignment method of the aperture of the extractor and an electron emitter for a micro-column. Further, the present invention provides a measuring system, a method for measuring, and an alignment method using the principle of the alignment.

Extractor for an microcolumn, an alignment method for an extractor aperture to an electron emitter, and a measuring method and an alignment method using thereof

Growing community of inventors

Gyeonggi-do, South Korea

Dae Wook Kim