摘要:
Provided is a method of forming a fine pattern having a pattern dimension of 1 μm or less, repeatedly with reproducibility. The method of forming the fine pattern includes: forming an azobenzene-functionalized polymer film on an etched layer; irradiating the azobenzene-functionalized polymer film using an interference laser beam to form a patterned azobenzene-functionalized polymer film having fine-patterned surface relief gratings by a photophysical mass transporting of the azobenzene-functionalized polymer; etching the etched layer using the azobenzene-functionalized polymer film having the surface relief grating patterns as an etching mask; and removing the patterned azobenzene-functionalized polymer film.
摘要:
Provided is a method of manufacturing a nitride-based semiconductor light-emitting device having an improved structure in which optical extraction efficiency is improved. The method of manufacturing a nitride-based semiconductor light-emitting device including an n-doped semiconductor layer, an active layer, a p-doped semiconductor layer, an n-electrode and a p-electrode includes: forming an azobenzene-functionalized polymer film on a base layer by selecting one layer from the group consisting of the n-doped semiconductor layer, the p-doped semiconductor layer, the n-electrode and the p-electrode as the base layer; forming surface relief gratings of a micro-pattern caused by a photophysical mass transport property of azobenzene-functionalized polymer by irradiating interference laser beams onto the azobenzene-functionalized polymer film; forming a photonic crystal layer using a metal oxide on a recessed gap of the azobenzene-functionalized polymer film, and removing the azobenzene-functionalized polymer film.
摘要:
A substrate structure and method of manufacturing the same are disclosed. The substrate structure may includes a substrate on which a plurality of protrusions are formed on one surface thereof and a plurality of buffer layers formed according to a predetermined pattern and formed spaced apart from each other on the plurality of protrusions.
摘要:
Provided are a flip-chip type light emitting device and a method of manufacturing the same. The provided flip-chip type light emitting device includes a substrate, an n-type cladding layer, an active layer, a p-type cladding layer, an ohmic contact layer formed of tin oxide to which at least one of antimony, fluorine, phosphorus, and arsenic is doped, and a reflection material formed of a reflective material. According to the provided flip-chip type light emitting device and the method of manufacturing the same, a current-voltage characteristic and durability are improved by applying a conductive oxide electrode structure having low surface resistivity and high carrier concentration.
摘要:
Example embodiments relate to a semiconductor device and a method of manufacturing the semiconductor device. The semiconductor device may include a pre-seeding layer and a nucleation layer. The pre-seeding layer may include a first material for pre-seeding and a second material for masking so as to reduce tensile stress.
摘要:
Light emitting devices and methods of manufacturing the light emitting devices. The light emitting devices include a silicon substrate; a metal buffer layer on the silicon substrate, a patterned dispersion Bragg reflection (DBR) layer on the metal buffer layer; and a nitride-based thin film layer on the patterned DBR layer and regions between patterns of the DBR layer.
摘要:
Substrate structures and methods of manufacturing the substrate structures. A substrate structure is manufactured by forming a protrusion area of a substrate under a buffer layer, and forming a semiconductor layer on the buffer layer, thereby separating the substrate from the buffer layer except in an area where the protrusion is formed. The semiconductor layer on the buffer layer not contacting the substrate has freestanding characteristics, and dislocation or cracks may be reduced and/or prevented.
摘要:
Provided are a multiple reflection layer electrode, a compound semiconductor light emitting device having the same and methods of fabricating the same. The multiple reflection layer electrode may include a reflection layer on a p-type semiconductor layer, an APL (agglomeration protecting layer) on the reflection layer so as to prevent or retard agglomeration of the reflection layer, and a diffusion barrier between the reflection layer and the APL so as to retard diffusion of the APL.
摘要:
Crack formation and propagation in a silicon substrate may be reduced by forming a crack reducing portion. The silicon substrate includes a silicon main portion and a silicon edge portion formed around the silicon main portion. The crack reducing portion is formed on the silicon edge portion of the silicon substrate such that the directions of crystal faces in the crack reducing portion are randomly oriented.
摘要:
Example embodiments are directed to light-emitting devices (LEDs) and methods of manufacturing the same. The LED includes a first semiconductor layer; a second semiconductor layer; an active layer formed between the first and second semiconductor layers; and an emission pattern layer including a plurality of layers on the first semiconductor layer, the emission pattern including an emission pattern for externally emitting light generated from the active layer.