Abstract:
PURPOSE: A method for manufacturing a light emitting diode using a metal protection layer is provided to reduce the number of processes by forming an n-ohmic metal layer and a protection layer made of the same materials. CONSTITUTION: A photoresist pattern(260) is formed on an n type nitride semiconductor(240) to expose the part on which an n-ohmic metal layer is formed. A metal protection layer(250) is formed on the n type nitride semiconductor to cover the photoresist pattern and the n type nitride semiconductor. The surface of the n type nitride semiconductor is partially exposed by removing the photoresist pattern and a metal protection layer formed on the photoresist pattern. The surface of the n type nitride semiconductor is roughened by processing the exposed surface of the n type nitride semiconductor.
Abstract:
The present invention relates to hybrid nanostructures in which metal nanoparticles are combined on metal oxide nanostructures and, more specifically, to a manufacturing method for hybrid nanostructures in which metal nanoparticles are combined on aligned metal oxide nanostructures comprising: a first step of forming a metal-organic precursor layer on a substrate or a thin film; a second step of forming a metal oxide seed layer by an imprinting and hardening process by locating a stamp for imprinting on the metal-organic precursor layer; a third step of forming a metal oxide seed pattern layer by exposing a part of the substrate or thin film by removing a residual layer of the metal oxide seed layer; a fourth step of removing a solvent by performing heat treatment on the metal oxide seed pattern layer; a fifth step of forming aligned metal oxide nanostructures on the metal oxide seed pattern layer in which the solvent is removed by using a hydrothermal synthesis method; and a sixth step of forming hybrid nanostructures by combining metal nanoparticles on the aligned metal oxide nanostructures by using photodecomposition reaction, and to hybrid nanostructures manufactured thereby. The present invention is economical since hybrid nanostructures with metal nanoparticles on metal oxide nanostructures are easily manufactured by using a simple process requiring low production costs such as an imprinting process, a hydrothermal synthesis method, photodecomposition reaction and the like.
Abstract:
PURPOSE: An electric component having a metal diffusion prevention graphene layer and a manufacturing method there of form a graphene layer between a bonding layer and a metal layer, increasing reproducibility. CONSTITUTION: A metal layer (203) comprises single metal or alloy. A graphene layer (202) is formed on the lower side of the metal. The thickness of the graphene layer is 0.2nm to 1.5μm. A bonding layer (201) is formed one the lower side of the graphene. The bonding layer is formed with one or more of single metal film, alloy film, oxide film, organic layer or inorganic film.
Abstract:
소자의 휘도를 떨어뜨리지 않는 전류저지층을 갖는 수직 구조 반도체 발광소자 및 그 제조방법을 제공한다. 본 발명에 따른 반도체 발광소자는 도전성 기판; Al, Cr, Ti 및 V으로 이루어진 군으로부터 선택된 하나 이상의 고반사성 금속을 이용해 상기 도전성 기판 상에 형성된 전류저지층; 상기 전류저지층 양측에 형성된 복수의 p형 전극; 상기 p형 전극과 상기 전류저지층 상에 순차적으로 적층된 p형 반도체층, 활성층 및 n형 반도체층; 및 상기 n형 반도체층 상에 형성된 n형 전극;을 포함한다.
Abstract:
PURPOSE: A semiconductor light emitting device and a manufacturing method thereof are provided to improve current spreading by using a highly reflective metal as a current blocking layer. CONSTITUTION: A current blocking layer(133) is formed on a conductive board by using a highly reflective metal. The highly reflective metal is selected from a group consisting of Al(Aluminum), Cr(Chromium), Ti(Titanium), and V(Vanadium). A plurality of P-electrode(132) is formed on both sides of the current blocking layer. A p-type semiconductor layer(125), an active layer, and an n-type semiconductor layer(115) are successively laminated on P-electrode and the current blocking layer. An N-electrode(145) is formed on the n-type semiconductor layer.