baber/WOPTO huggingface dataset:
Patent KR-20120136705-A (KR)
Title: In-plane switching mode liquid crystal display device and method of fabricating the same
Inventor: KIM DONG YOUNG
IPC: G02F1/1343
Filed: 2011-06-09
Abstract: PURPOSE: An in-plane switching mode liquid crystal display device and a manufacturing method thereof are provided to reduce the number of masks and to maintain constantly a gap between a pixel electrode and a data line by forming the pixel electrode and the data line by one mask process. CONSTITUTION: A pixel electrode(130) is electrically connected to a thin film transistor. The pixel electrode is formed which is made of the same material as one layer of a data line(102). The gap between the pixel electrode and the data line is constantly maintained. A passivation layer(140) is arranged on a substrate. Common electrodes(150) are overlapped with the pixel electrode on the passivation layer. The common electrodes are formed with a constant interval.
Patent KR-20120138438-A (KR)
Title: Fabrication of anti-reflective silicon surface using metallic ions
Inventor: SONG JAE YONG
IPC: H01L21/306
Filed: 2011-06-15
Abstract: PURPOSE: A method for manufacturing an anti-reflective silicon wafer using metal ions is provided to reduce silicon costs by decreasing an etching speed of a silicon wafer to reduce an amount of silicon wafers. CONSTITUTION: Metal with a lower electron affinity than silicon is ionized in alkali solvents. The surface of a silicon wafer is irregularized by contacting the silicon wafer with solutions. The metal has higher reduction power than the silicon. The silicon wafer is contacted with the solutions at 40 to 80 degrees centigrade. The height of an uneven part on the surface of the silicon wafer is selectively controlled by controlling the temperature of the solutions.
Patent KR-20130001642-A (KR)
Title: Led driving circuit
Inventor: HAN JAE HYUN
IPC: H05B37/02
Filed: 2011-06-27
Abstract: PURPOSE: A light emitting diode operating circuit is provided to improve the reliability of a lighting system by supplying a constant voltage to a light emitting unit having a light emitting diode. CONSTITUTION: A diode operating circuit includes a power supply unit(160), an LED string(10), and a protective unit(20). The power supply unit supplies power and includes a capacitor(C1) connected with an output terminal in parallel. The capacitor removes a ripple included in the power. A plurality of LED strings are connected in parallel. A plurality of boards are electrically connected with each other. A plurality of light emitting units in each board are connected with each other in parallel. The protective unit is formed between a first inductor and a first diode. The first inductor accumulates a current outputted from a voltage source and constantly maintains the amount of currents applied to the LED strings.
Patent KR-20130006993-A (KR)
Title: Manufacturing method of flexible display
Inventor: SONG TAE JOON
IPC: G09F9/00
Filed: 2011-06-28
Abstract: PURPOSE: A method for manufacturing a flexible display device is provided to reuse a substrate by separating a buffer layer from a carrier substrate. CONSTITUTION: A sacrificial layer is formed on a carrier substrate(S100). A flexible printed circuit board is formed on the sacrificial layer(S110). A thin film transistor array is formed on the flexible printed circuit board(S120). The flexible substrate and the carrier substrate are separated by etching the sacrificial layer(S130). The flexible substrate is attached to an adhesive roll(S140). [Reference numerals] (S100) Forming a sacrificial layer on a carrier substrate; (S110) Forming a flexible substrate; (S120) Forming a thin film transistor array; (S125) Forming a pixel element; (S130) Separating the flexible substrate; (S140) Attaching the flexible substrate on an adhesive roll; (S150) Attaching the flexible substrate on a rear substrate; (S160) Scribing, sealing; (S170) Attaching and completing COG, FPC
Patent KR-20130003689-A (KR)
Title: Length adjustable apparatus for steel pipe strut of retaining wall
Inventor: LA SEUNG MIN
IPC: E02D17/04
Filed: 2011-06-30
Abstract: PURPOSE: A length adjusting device of a steel pipe strut for a retaining wall and a steel pipe strut for a retaining wall with adjustable length and installation angle using the same are provided to improve workability by enabling a worker to rotate a locking nut using a small amount of power. CONSTITUTION: A length adjusting device of a steel pipe strut for a retaining wall comprises a screw shaft(10), a connection member(20), and a locking nut(30). A thread portion(12) is formed on the outer surface of one end of the screw shaft. The connection member is formed on the other end of the screw shaft and connected to a wale. The locking nut is coupled to the thread portion of the screw shaft and is rotated by pushing the steel pipe strut to fix the end position of the steel pipe strut inserted into the thread portion.
Patent KR-20130005577-A (KR)
Title: The pressure vessel having new safety valve
Inventor: BYEON JAE UG
IPC: F17C13/12
Filed: 2011-07-06
Abstract: PURPOSE: A pressure container with a new safety valve is provided to improve safety by preventing problems caused by corrosion and plastic deformation problems caused by stress concentration. CONSTITUTION: A pressure container with a new safety valve(1) comprises a cover(10), a body(20), a seat(30), a disc(40), and a spring(50). A groove is formed in the center of the inner surface of the disc. In the disc, a part contacted to fluid and an edge part sliding with the body are manufactured by different materials. The diameter of the groove is 1/10-1/5 of the upper inside diameter of the disc and the depth thereof is 1/10-1/5 of the disc. The part contacted to the fluid is formed by Teflon having excellent corrosion resistance. A stainless steel containing 8% of nickel and 18% of chrome is welded and poured in a mold to form the edge part of the disc.
Patent KR-20130006097-A (KR)
Title: Crash box in vehicle bumper system
Inventor: LEE MUN YONG
IPC: B60R19/34
Filed: 2011-07-08
Abstract: PURPOSE: A crash box for a vehicle is provided to obtain the rigidity against a head-on collision because rib units are integrally formed inside thereof. CONSTITUTION: A crash box for a vehicle(1) comprises main bodies and a cover plate(30). Both ends of the main bodies and one side of the main bodies facing outward in a lateral direction of a bumper beam are opened. Rib units(20,20a,20b,20c) are integrally formed in the main body, reinforce rigidity, and induce a sequential collapse. The main bodies are respectively mounted in both sides of the rear of the bumper beam corresponding to a side member.
Patent KR-20130010995-A (KR)
Title: 판형 재료의 재단 방법 및 그 방법을 수행하는 프로그램이 기록된 기록매체
Inventor: KIM JIN HWANG
IPC: B28D1/24
Filed: 2011-07-20
Abstract: 판형 재료의 재단 방법 및 그 방법을 수행하는 프로그램이 기록된 기록매체가 개시된다. 본 발명의 일측면에 따른 컴퓨팅 장치에서 수행되는 판형 재료의 재단방법은 주문된 주문판들의 종류별 크기 및 수량에 대한 주문판 정보를 입력받는 단계; 주문판들의 면적, 면적에 수량을 곱한 총면적 및 가로와 세로의 길이를 이용하여 주문판들의 우선순위를 각각 결정하는 단계; 입력되거나 미리 저장된 하나 이상의 원판에 대한 크기 및 수량에 따른 원판 정보를 주문판 정보와 함께 이용하여, 각 원판에 대해 우선순위 각각에 따른 순으로 주문판들의 배치 가능성 및 배치 후의 나머지 면적을 이용한 손실률을 계산하고, 우선순위와 손실률을 이용하여 최적원판과 최적주문판을 결정하는 단계; 및 주문판들 중 최적주문판을 제외한 나머지 주문판 중, 최적원판에 최적주문판을 배치한 이후 남는 영역에 배치할 추가주문판을 우선순위 및 배치에 따른 손실률을 이용하여 결정하는 단계를 포함한다. 본 발명에 따른 판형 재료의 재단 방법에 의하면, 주문판에 적합한 원판을 선택하여 손실률을 최소화하여 원판을 효율적으로 이용할 수 있다.
Patent KR-20130011059-A (KR)
Title: 온라인을 통한 인사 조직 관리 시스템
Inventor: CHA MIN SEO
IPC: G06Q10/06
Filed: 2011-07-20
Abstract: 본 발명에 따른 온라인을 통한 인사 조직 관리 시스템은, 온라인 환경에 제공되는 조직 설정 인터페이스를 통하여 유저 별로 계층 조직을 생성 및 설정하되, 상기 계층 조직을 수평 관계를 갖는 제 1 조직과 상기 제 1 조직에 종속되는 제 2 조직으로 설정함과 동시에 상기 제 2 조직에 유저 정보를 수용하는 사이버 공간인 4 내지 7개의 계층 룸을 제 2 조직의 한계 인원수로 생성하여 상기 제 1 조직 내에 상기 계층 룸이 4 내지 7개를 갖도록 함과 동시에 상기 계층 룸에 시계열적인 배정 순번을 설정하는 계층 조직 설정모듈; 유저의 회원 정보를 입력받아 신규 유저로 가입하는 회원 가입부 및, 상기 신규 유저로부터 추천 유저를 입력받는 유저 추천부로 이루어진 유저 모집모듈; 상기 추천 유저의 계층 조직을 검색하여 상기 추천 유저의 계층 조직에 상기 신규 유저를 배정하도록 준비하는 유저 배정부와, 상기 추천 유저의 계층 조직의 제 1,2 조직과 계층 룸의 개수와 순번을 파악하는 계층 조직 파악부 및, 상기 계층 조직 설정모듈에 의한 상기 계층 룸의 시계열적인 배정 순번에 입각하여 상기 계층 룸에 신규 유저의 유저 정보를 배정 및 저장 처리하는 계층 룸 배정부로 이루어진 조직 배정모듈;로 구성된 것을 특징으로 한다.
Patent KR-20120010202-A (KR)
Title: Apparatus and method of transmitting/receiving identifier of no mobility mobile station with idle state in wireless communication system
Inventor: CHO HEE JEONG
IPC: H04W88/08
Filed: 2011-07-22
Abstract: PURPOSE: A method for transmitting and receiving an identifier for idle state terminal and apparatus thereof are provided to allocate an identifier for idle state terminal which does not have mobility of an idle state terminal. CONSTITUTION: A BS(Base Station) receives mobility information from one terminal(S310). The base station allocates an identifier for idle state terminal which does not have mobility to the idle state based on mobility information(S350). The base station transmits the allocated identifier to the idle state terminal which does not have mobility(S360).
Patent KR-20130012780-A (KR)
Title: Display apparatus
Inventor: LEE JUNG HUN
IPC: G02B30/25
Filed: 2011-07-26
Abstract: PURPOSE: A display device is provided to prevent generation of crosstalk in case of implementing a stereoscopic image. CONSTITUTION: A display device(100) includes a display panel(130), a gate driver(110), and a data driver(120). The display panel includes a plurality of pixels and displays an image. A polarization plate is equipped on the display panel. A retarder faces the display panel between polarization plates. The retarder defines first regions and second regions by alternating each other. The slow axis direction of the retarder in the first regions is different from the slow axis direction of the retarder in the second regions.
Patent KR-20130017312-A (KR)
Title: Display device
Inventor: LEE JAE SEOB
IPC: H01L51/50
Filed: 2011-08-10
Abstract: PURPOSE: A display device is provided to form a crystallized active layer on a base film made of plastic by using laser. CONSTITUTION: A base film(100) is made of plastic. An active layer(132) is formed on the base film. An amorphous silicon film is changed into a polycrystalline silicon film by using laser. A barrier layer(110) is formed between the active layer and the base film. A laser absorbing layer(200) is arranged between the barrier layer and the active layer.
Patent KR-20130019884-A (KR)
Title: Backlight unit
Inventor: JANG YOUNG BAE
IPC: G02F1/13357
Filed: 2011-08-18
Abstract: PURPOSE: A backlight unit is provided to arrange reflection sheet supports on a bottom cover and improve the rigidity and reflectivity of an air guide. CONSTITUTION: A sidewall plate(200) is combined with both sides of a bottom cover(100). A light source module(400) including at least one light source is arranged in the sidewall plate. Multiple reflection sheet supports(300) are arranged on the bottom cover. The multiple reflection sheet supports include at least two inclined surfaces having at least one inflection point. A reflection sheet is arranged on the inclined surfaces of the reflection sheet supports.
Patent KR-20130026670-A (KR)
Title: Light emitting device
Inventor: JUNG MYUNG HOON
IPC: H01L33/22
Filed: 2011-09-06
Abstract: PURPOSE: A light emitting device is provided to reduce stress in an active layer by forming a recess part in a light emitting structure using lattice mismatch. CONSTITUTION: A buffer layer(120) is formed on a substrate(110). An undoped semiconductor layer(130) is formed on the buffer layer. A light emitting structure is formed on the undoped semiconductor layer. The light emitting structure includes a first conductive semiconductor layer(140), an active layer(160), and a second conductive semiconductor layer(180). A lattice mismatch layer(150) is formed in the first conductive semiconductor layer. At least one recess part(145) is formed in the first conductive semiconductor layer.
Patent KR-20130026955-A (KR)
Title: A skin-care cosmetics containing nature oriental medical complex composition and a method of preparing the same
Inventor: LEE YUN LYUL
IPC: A61Q19/00
Filed: 2011-09-06
Abstract: PURPOSE: A skin protection cosmetic composition and a method for manufacturing the same are provided to ensure safety and low irritation. CONSTITUTION: A method for manufacturing a skin protection cosmetic composition containing a natural medicinal herb composition comprises: a step of preparing pulverized black soybean, Houttuynia cordata, Angelica gigas, Artemisia princeps, Cnidii Rhizoma, Angelica keiskei, Menthae Herba, Phaseoli radiati Semen, Phellinus baumii, Lonicerae Flos, ginger, Scrophulariae Radix, green tea, Calendula officinalis, and Platycodon grandiflorum and mixing; a step of mixing and maturing the ingredient mixture and bamboo liquor in a ratio of 7:3; a step of removing a liquid ingredient and collecting a solid ingredient; and a step of isolating and extracting the solid ingredient. [Reference numerals] (AA) UV/undiluted solution
Patent KR-20120035855-A (KR)
Title: Device
Inventor: WADA MAKOTO
IPC: H01L21/28
Filed: 2011-09-15
Abstract: PURPOSE: An apparatus for preventing wire disconnection is provided to suppress the increase of wire resistance by covering the inner surface of a void with a graphene layer of low resistance. CONSTITUTION: A first insulating layer(11) includes a first trench. A first wiring layer(15) is arranged within the first trench. The first wiring layer comprises copper. A concave part(16) is included within the copper of the first wiring layer. A first graphene sheet is formed on the inner surface of the concave part.
Patent KR-20130031414-A (KR)
Title: Conductive paste composition for low temperature firing
Inventor: LEE YOUNG IL
IPC: H01J17/49
Filed: 2011-09-21
Abstract: PURPOSE: A conductive paste composition is provided to form a conductive wire with high aspect ratio together with excellent printability and to obtain excellent electric performance and adhesion even by a low temperature sintering under 200°C. CONSTITUTION: A conductive paste composition low temperature sintering comprises a copper powder which consists of a platelike powder, spherical powder, nano-sized powder; a melamine-based binder; and an organic solvent. The conductive paste composition for low temperature sintering comprises 50-95 weight% of the conductive copper powder, 0.01-5 weight% of the melamine-based binder, and residual organic solvent. The conductive copper powder consists of a platelike powder of 1-20 micron, a conductive copper powder of 0.1-5 micron, and a nanopowder of 1-10 nm. [Reference numerals] (AA) Platelike shape; (BB) Spherical shape; (CC) Nano
Patent KR-20130031561-A (KR)
Title: 표시 장치 및 그것의 오프셋 제거 방법
Inventor: KIM HYUNG TAE
IPC: G09G3/36
Filed: 2011-09-21
Abstract: 본 발명에 따른, 표시 장치의 오프셋 제거 방법은, 증폭기들의 오프셋 방향을 일치시키는 단계, 및 교번 동작을 통하여 상기 증폭기들의 오프셋들을 제거하는 단계를 포함한다.
Patent KR-20130032603-A (KR)
Title: Method and apparatus for storing data in flash memory using address mapping with various block sizes
Inventor: KANG SOO YONG
IPC: G06F12/06
Filed: 2011-09-23
Abstract: PURPOSE: A method and a device for storing data in a flash memory are provided to increase performance by matching a unit for managing an address idea in an FTL(File Translation Layer) and a unit for managing the address idea of a database system or a file system. CONSTITUTION: A flash memory(540) stores data, and a block size determination unit(510) determines the size of a block used in a host system connecting to a storage device. An address idea management unit(520) generates a physical address of the flash memory by using the idea unit of the block size. The block size determination unit determines the size of the block used in the host system based on a data access request from the host system. The block size determination unit determines the size of the block used in the host system based on the size of the data access request. [Reference numerals] (450) Storage device; (510) Block size determination unit; (520) Address idea management unit; (540) Flash memory;
Patent KR-20130035495-A (KR)
Title: Hybrid namoparticle of lithium iron phosphate with carbon and lithium phosphate and method for preparing the same
Inventor: LEE GAE HANG
IPC: B82B3/00
Filed: 2011-09-30
Abstract: PURPOSE: A manufacturing method of a hybrid nanoparticle is provided to obtain a hybrid nanoparticle with high-rate performance in a discharging rate of 2C and 20C without loss of capacity. CONSTITUTION: A manufacturing method of the hybrid nanoparticle of a lithium phosphate and carbon of LiFePO4 comprises a step of mixing a LiFePO4 and lithium phosphate precursor and a surfactant to a solvent; a step of obtaining powder by evaporating the solvent in the mixture; and a step of heat-treating the powder in a non-oxygen atmosphere. The surfactant is the triblock copolymer of polyethylene oxide and polypropylene. The weight ratio of the propylene oxide in the block copolymer is 10-90wt%.
Patent KR-20130035792-A (KR)
Title: Method and kit for analyzing interactions between proteins using light-inducible nanocluster formation
Inventor: HEO WON DO
IPC: G01N33/68
Filed: 2011-09-30
Abstract: PURPOSE: A method and a kit for analyzing protein-protein interaction through light-inducible nanocluster formulation are provided to effectively analyze protein-protein interaction. CONSTITUTION: A method for analyzing protein-protein interaction through light-inducible nanocluster formulation comprises: a step of simultaneously expressing a first fusion protein, a second fusion protein, a third fusion protein, a partner protein, a bait protein, and a prey protein in a cell; a step of irradiating the cell with light in a wavelength of inducing a light-inducible heterodimer forming protein and heterodimer formation of the partner protein and forming a light-inducible nanocluster; and a step of observing fluorescence pattern and strength of a fluorescent protein. [Reference numerals] (AA,BB) Light; (CC) SAP: Self-assembled protein; (DD) CIBN: N-terminal of CIB1 protein; (EE) PHR: N-terminal of chryptochrome2(CRY2)(heterodimer formation protein);
Patent KR-20130037291-A (KR)
Title: 인터넷 여론 및 설문조사를 통한 관심주제 동향 분석시스템 및 그 방법
Inventor: HONG SUNG JIN
IPC: G06Q50/30
Filed: 2011-10-06
Abstract: 본 발명의 일 측면에 따르면, 인터넷 상에서 여론 및 설문조사를 수행하는데 있어서 사용자가 선택한 질문항목 또는 선택항목에 대한 선택정보를 생성하고, 이를 통해 사용자들이 관심을 갖는 주제의 동향을 분석할 수 있는 인터넷 여론 및 설문조사를 통한 관심주제 동향 분석시스템 및 그 방법을 제공한다. 
이를 위해, 본 발명의 일 실시예에 따른 인터넷 여론 및 설문조사를 통한 관심주제 동향 분석시스템은 인터넷 여론 및 설문조사를 통해 산출되는 결과를 기초로 여론 및 설문조사 참여자의 관심주제 동향을 분석하는 인터넷 여론 및 설문조사를 통한 관심주제 동향 분석시스템에 있어서, 인터넷 웹페이지 상에 여론 및 설문조사 질의항목과 선택항목을 제공하는 항목제공서버; 상기 인터넷 웹페이지에 접속되는 참여자 단말기의 선택신호에 따라 선택된 상기 질의항목과 선택항목의 선택 횟수를 각각 카운팅하는 카운팅서버; 상기 카운팅서버에 의해 각각 카운팅되는 상기 질의항목과 선택항목의 선택 횟수를 각 항목별로 저장하는 제1데이터베이스서버; 상기 제1데이터베이스서버에 저장된 상기 질의항목과 선택항목이 포함하는 주제어(태그)를 추출하는 태그추출서버; 상기 태그추출서버에 의해 추출된 주제어가 포함되는 항목의 선택 횟수를 각 주제어별로 저장하는 제2데이터베이스서버; 상기 제2데이터베이스서버에 저장된 상기 주제어와 상기 각 주제어별 선택 횟수에 기초하여 여론 및 설문조사 참여자의 관심주제 동향을 분석하는 관심주제동향분석서버;와 상기 관심주제동향분석서버를 통해 분석된 관심주제 동향을 상기 인터넷 웹페이지 상에 표시하는 디스플레이서버;를 포함한다. 
이를 통해, 여론 및 설문조사에서 참여자가 관심을 가지는 주제어(태그)를 정확하게 추출하여 관심주제의 동향을 효율적으로 분석할 수 있고, 여론 및 설문조사를 수행함에 있어서 각 선택항목에 대해서도 댓글을 달수 있도록 하여 참여자의 관심주제를 더욱 명확하고 세부적으로 파악할 수 있다.
Patent KR-20120036775-A (KR)
Title: Sputtering target having amorphous and microcrystalline portions
Inventor: HERZOG ANDREAS
IPC: C23C14/34
Filed: 2011-10-07
Abstract: PURPOSE: Sputtering targets having amorphous and microcrystalline portions are provided to evaporate continually a uniform layer from a sputtering target until mixture is completely corroded. CONSTITUTION: Sputtering targets having amorphous and microcrystalline portions include mixture of indium, zinc, and gallium oxides. The mixture of indium, zinc, and gallium oxides contains ternary mixed oxides of gallium, indium, and zinc. The ternary mixed oxides of gallium, indium, and zinc is about5 0wt.% of total weight mixture or greater. The part of amorphous phase is about 20wt.% of total weight or greater.
Patent KR-20130038526-A (KR)
Inventor: PARK JUN HONG
IPC: A61Q19/00
Filed: 2011-10-10
Abstract: PURPOSE: An essence using a jujube extract and a red ginseng extract and a method for manufacturing the same are provided to maximize antioxidation and to suppress skin aging. CONSTITUTION: An essence contains 5-10 wt% of a mixture solution containing a jujube extract and a red ginseng extract in a weight ratio of 4-6:6-4. The extracts are a hot water extract.
Patent KR-20130038705-A (KR)
Title: Jumping athletic apparatus
Inventor: CHOE SIN KYU
IPC: A63B25/08
Filed: 2011-10-10
Abstract: PURPOSE: A jumping athletic apparatus is provided to be used indoor without noise and is able to be used softly and steadily. CONSTITUTION: A jumping athletic apparatus comprises an upper case(60) in which a spring is interposed between a footstool and a supporting plate(40), and the distance between the footstool and the supporting plate flexibly changes; a lower case(70) which is combined with the upper case and a lower part is opened; and a buffering means(80) built in the upper case and the lower case, and in which the lower part of a second impact absorbing material is exposed to an opening unit of the lower case. The supporting plate contacts with the buffering means to control the movement toward the buffering means, and is fixed to the upper case in order to limit the movement of the upper case toward an upper direction.
Patent KR-20130042154-A (KR)
Title: Light emitting device and manyfacturing method thereof, and light emitting device mudule using the same
Inventor: PAEK HO SUN
IPC: H01L33/44
Filed: 2011-10-18
Abstract: PURPOSE: A light emitting device and a manufacturing method thereof, and a light emitting device module using the same are provided to improve heat dissipation efficiency using a first and a second bump. CONSTITUTION: A first electrode(130) is formed in the exposed region of a first semiconductor layer(121). A second electrode(140) is formed in a second semiconductor layer(123). A passivation layer exposes the first region of the first electrode and the first region of the second electrode. A first bump is formed in the first region including the first electrode. A second bump is formed in the second region including the second electrode.
Patent KR-20130043416-A (KR)
Title: Activation method of transition metal nanoparticle catalyst
Inventor: PARK JEONG YOUNG
IPC: B82B1/00
Filed: 2011-10-20
Abstract: PURPOSE: The activation method of a transition metal nano catalyst and a transition metal nano catalyst activated thereby are provided to manufacture a transition metal nano catalyst in which a catalyst activation is improved regardless of the form of a catalyst with a simple process and obtain an economic effect by having a high reaction efficiency with the small amount of catalyst if the activated transition metal nano catalyst is used. CONSTITUTION: The activation method of a transition metal nano catalyst forms an oxide layer on the surface of a transition metal nano catalyst by chemically processing the surface of the transition metal nano catalyst. The transition metal nano catalyst is selected from a group consisting of rhodium, platinum, palladium, and iridium. The average diameter of the transition metal nano catalyst is 1 ~ 100 nm. The chemical surface process uses a method selected from a group consisting of an ultraviolet ray-ozone process or a plasma process. The ultraviolet ray-ozone process is performed by irradiating ultraviolet ray 150 ~ 300 nm in the ozone of 0.5 ~ 5 sccm. The plasma process performs the oxygen of 0.5 ~ 5 sccm with the power of 15 ~ 50W. The process is performed for 2 ~ 10 hours.