Abstract:
본 발명은 박막 트랜지스터 및 그의 제조 방법에 관한 것으로, 절연체의 높이 차이를 이용하여 소스, 드레인 및 게이트 전극을 동시에 형성하여 박막 트랜지스터 제조 공정을 간소화하기 위한 것이다. 본 발명에 따르면, 베이스 절연막은 기판 위에 형성되며, 기판이 노출되게 게이트 홀이 형성되어 있다. 소스 및 드레인 전극은 게이트 홀을 중심으로 양쪽의 베이스 절연막 위에 형성된다. 게이트 전극은 게이트 홀의 노출된 기판 위에 형성된다. 게이트 절연막은 게이트 홀을 통하여 게이트 전극 위에 형성된다. 그리고 반도체층은 게이트 전극 위의 게이트 절연막과, 게이트 절연막 양쪽의 소스 및 드레인 전극 부분을 덮도록 형성된다. 이때 게이트 홀을 중심으로 베이스 절연막의 높이 차이를 이용하여 소스, 드레인 및 게이트 전극이 일괄적으로 형성되면서 전기적으로 분리된다.
Abstract:
본 발명은 접착시트를 포함하는 유기발광다이오드 소자 및 이의 형성 방법에 관한 것으로, 이러한 본 발명은 적어도 하나의 유기발광다이오드와, 상기 유기발광다이오드 상에 형성되어 상기 유기발광다이오드 및 상기 유기발광다이오드와 이웃하는 적어도 하나의 유기발광다이오드를 물리 및 전기적으로 연결하기 위한 적어도 하나의 접착 시트를 포함하는 것을 특징으로 하는 유기발광다이오드 소자를 제공한다. 또한, 본 발명은 적어도 하나의 유기발광다이오드를 형성하는 단계와, 상기 유기발광다이오드 및 상기 유기발광다이오드와 이웃하는 적어도 하나의 유기발광다이오드를 물리적 및 전기적으로 연결하도록 상기 유기발광다이오드 상에 적어도 하나의 접착 시트를 형성하는 단계를 포함하는 것을 특징으로 하는 유기발광다이오드 소자 형성 방법을 제공한다.
Abstract:
PURPOSE: A device structure and fabrication method for a high performance organic thin film transistor are provided to improve electrical properties which are close-packing and carrier mobility of an organic active layer. CONSTITUTION: A high performance organic thin film transistor comprises a substrate(1) comprised of silicon, plastic or glass, a gate(2) of an organic transistor deposited on the substrate through lift-off process, a gate insulation layer(3) with high dielectric constant deposited on the gate, a source and drain metallic electrode(4) deposited on the insulation layer through lift-off process, an organic buffer layer(5) with chemical bonds between the source and drain metallic electrode and the organic active layer(7), a self-assembly(6) between the gate insulation layer and the organic active layer.
Abstract:
PURPOSE: Provided is an automatic entry passage system by a DSRC network which transmits or receives information related to gate entry by wireless communication without stopping a container vehicle so that it helps entry work to be done rapidly or exactly. CONSTITUTION: The automatic gate passage system by a DSRC network comprises the parts of: a vehicle terminal device and a wireless trans-receiver which transmit and receive various information necessary for gate entry in wireless communication way through a DSRC network; a camera which films side and top of a container to examine the damaged state of the container in entering container vehicle; an antenna which treats entry work of the container vehicle; and a screen which is placed in the container vehicle to supply additive information service like stop location, container location map, container number, vehicle arrival time, cargo state in the container or so on.
Abstract:
PURPOSE: An optoelectronic device composed of hetero-junction phototransistor(HPT) and hetero-junction bipolar transistor(HBT) is provided to supply photoelectric device having the type of photo-darlington pair of HBT and HPT and to improve the sensitivity and the speed of photo receiver. CONSTITUTION: A n-type InGaAs sub-collector layer(35), a n-type InP sub-collector layer(36), a n-type InGaAs collector layer(37), a p-type InGaAs base layer(38), a n-type InP emitter layer and an InGaAs emitter cap layer are formed on a half-insulating substrate InP successively by using MOCVD, CBE, or MBE method. The emitter-Cap and emitter layer are wet-etched and emitter electrodes(42) and base electrodes(43) of both HPT and HBT are formed by using liftoff process. The base and collector of both HPT and HBT are made by using the two electrodes as masks and collector electrode(44) of both HPT and HBT is formed by liftoff process. A n-type InP sub-collector layer and a n-type InGaAs sub-collector layer(35) are wet-etched. A surface-protecting insulation layer is spin-coated and being cured at the 200-300 degrees Celsius. The emitter electrode is exposed by wet-etching without a mask and via holes for base and collector is formed using a mask and then the emitter electrodes of HPT and HBT are connected by wire. The collector electrode pad of HPT and that of HBT is connected to form photo-darlington pair, by which, weak electric signal converted by HPT is amplified at HBT.
Abstract:
PURPOSE: A method and a system for telephone surveying using a tip paying service are provided to enable a respondent to answer without hanging up a telephone by paying predetermined tip. CONSTITUTION: A telephone call connected with a prospective respondent is received from a survey client. A response faithfulness rate of a respondent is evaluated(102). A result value evaluating the response faithfulness is stored in a respondent account. A response faithfulness rate result value of respondent stored in a respondent account and a reference value which is set in an application server are compared. After-reward is performed to respondents who has a result value over than a reference value(103).
Abstract:
PURPOSE: Provided are a photoresist having good solubility in water, an organic thin film photolithography process, and an organic thin film patterning process using the same which do not give any damages on an organic activated layer and are applicable to all organic TFT. CONSTITUTION: The water-soluble photoresist comprises one or more polymer selected from the group consisting of sulfur oxide of polyaniline, PVA, PEDOT and polypyrrole; a photoinitiator and an ultraviolet ray curing agent comprised of a monomer and an oligomer; and one or more solvent material selected from the group consisting of N-methyl-2-pyrrolidone, n-butanol, n-dimethylacetamide and tetrahydrofuran. The photolithography process comprises the steps of: applying the water-soluble photoresist(6) by spin-coating; depositing a photomask(11) on the photoresist(6) and selectively exposing a desired portion of the photoresist(6) to an ultraviolet ray; and developing the exposed photoresist(6) using water or isopropyl alcohol. Post-photolithography process, the unwanted portion of an organic thin film(5), an inorganic thin film or a metallic thin film is removed via an etching step to form a pattern of the organic thin film(5).
Abstract:
PURPOSE: Provided is an automatic entry passage system by a DSRC network which transmits or receives information related to gate entry by wireless communication without stopping a container vehicle so that it helps entry work to be done rapidly or exactly. CONSTITUTION: The automatic gate passage system by a DSRC network comprises the parts of: a vehicle terminal device and a wireless trans-receiver which transmit and receive various information necessary for gate entry in wireless communication way through a DSRC network; a camera which films side and top of a container to examine the damaged state of the container in entering container vehicle; an antenna which treats entry work of the container vehicle; and a screen which is placed in the container vehicle to supply additive information service like stop location, container location map, container number, vehicle arrival time, cargo state in the container or so on.