baber/WOPTO huggingface dataset:
Patent KR-20000003325-A (KR)
Title: Apparatus and method of reading and writing optical disk and data structure for the same
Inventor: MOON SEONG JIN
IPC: G11B7/0037
Filed: 1998-06-27
Abstract: PURPOSE: An apparatus and a method of reading and writing optical disk is provided to serve with a part of title (PTT) information. In addition a data structure for the apparatus and the method is provided to be accessed to a user without considering data location. CONSTITUTION: The present invention is related to an apparatus and a method of reading and writing a rewritable optical disk, and a data structure of the same. The data structure includes unit cells for editing the data and illustrating the order of reading data. The apparatus and the method generates the cell by grouping an audio data and a video data, generates a program by using at least one cell, generates a PTT information with specific parts of the audio data and the video data, and writes the PTT information to the disk.
Patent KR-20000003422-A (KR)
Title: Stuck open disorder detecting circuit and stuck open testing device thereof
Inventor: YU SEUNG HUN
IPC: H03K19/00
Filed: 1998-06-29
Abstract: PURPOSE: A stuck open disorder detecting circuit is provided to quickly and exactly detect the stuck open disorder of a combined circuit. CONSTITUTION: The stuck open break detecting circuit comprises: a first PMOS transistor(311) having a gate connected to a first output and a source connected to a second output; a first NMOS transistor(312) having a drain connected to the power voltage and a gate connected to the first output; and a second NMOS transistor(313) having a drain connected to the second output and a gate connected to the first output.
Patent KR-20000004710-A (KR)
Title: Omnidirectional propeller installing device of drilling ship
Inventor: KIM MYUNG SUK
IPC: E21C50/02
Filed: 1998-06-30
Abstract: PURPOSE: An omni-directional propeller installing device of a drilling ship is provided to maximize the working space of the inner part of a ship and to maximally prevent corrosion. CONSTITUTION: The omni-directional propeller installing device of a drilling ship comprises:an omni-directional propeller(10) for minimizing the event that the body of a ship is swayed or the place is changed by a tide, the direction of wind, the speed of wind and the height of a wave; a winch(20) for pulling up the omni-directional propeller by using a rope(21); plural guide pipes(30) for minimizing the movement radius of the rope for putting the omni-directional propeller in a regular place to be able to lead, installed vertically in the top direction of the body of a ship.
Patent KR-20000007822-A (KR)
Title: Recombinant vector and transformated body containing elastase inhibitor gene isolated from korean bloodstuck sp. leech
Inventor: LEE GONG JU
IPC: C12N15/12
Filed: 1998-07-07
Abstract: PURPOSE: An amino acid peptide extracted from Korean leech named Guamerin which has higher inhibition capacity and elastase-specificity than any other elastase inhibitor, its recombinant vector, and transformed yeast(Pichia pastoris) are provided. CONSTITUTION: Gaumerin extracted from natural leech are not adequate to mass production, so genes of Gaumerin are extracted from leech's cDNA library. Next process is consisted of following steps of: Sequencing Gaumerin bases; Constructing recombinant vector to fit to Pichia pastoris's excretion system by using this genes; Inserting genes of Gaumerin to Pichia pastoris's chromosomes; Selecting permanent Gaumerin-expressive fungi.
Patent KR-20000008040-A (KR)
Title: Inrush relay circuit of microwave oven for high inputting
Inventor: HAN DAE SUNG
IPC: H05B6/68
Filed: 1998-07-09
Abstract: PURPOSE: An inrush relay circuit of a microwave oven for high inputting is provided to reduce the manufacturing cost by making the structure and the working of a relay driving unit, simple. CONSTITUTION: The inrush relay circuit has; alternating current lines(L1)(L2)(L3)(L4) that are connected to high voltage transmissions(HVT1)(HVT2); power relay contact points(RY30)(RY40) feeding or intercepting common use alternating current power to the high voltage transmission; a relay driving unit(20) passing driving current through plural inrush relay coils(RY11)(RY21); and a micro computer(10) feeding a working signal to the relay driving unit.
Patent KR-20000009111-A (KR)
Title: Refresh apparatus
Inventor: KIM MI YOUNG
IPC: G11C11/406
Filed: 1998-07-21
Abstract: PURPOSE: A refresh apparatus is provided to secure stable operation of memory cell. CONSTITUTION: The apparatus comprises a RAS(row address strobe) signal generator for receiving a refresh instruction signal and generating a RAS signal, an address counter for counting a row address to refresh a next row address, and a controller connected between the RAS signal generator and the address counter and for controlling the address counter by combining the inputted refresh instruction signal with an inverted signal of the RAS signal. The controller is consisted AND logic circuit. Thereby, input of the refresh instruction signal is prevented when the refresh operation is operated.
Patent KR-19980072086-A (KR)
Title: 관 체결장치
Filed: 1998-07-22
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야 
     관(管) 체결장치 (tube connector) 
     2. 발명이 해결하려고 하는 기술적 과제 
     유체나 가스 등을 이송하는 관을 체결함에 있어 용이하고도 신속한 체결 및 탈거가 가능하며 확실한 밀봉효과를 기대할 수 있는 체결장치를 제공하고자 함. 
     3. 발명의 해결 방법의 요지 
     컨넥터 내부에 밀봉용 씰(seal)을 설치하여 체결된 관과의 기밀(氣密)을 유지하며, 컨넥터 외부에는 체결된 관이 빠지지 않도록 하는 스토퍼(stoper)를 설치하며, 체결되는 관의 끝부분에는 스토퍼와의 상호 작용을 통해 관의 용이한 체결 및 해체가 가능하도록 턱을 설치하는 것을 특징으로 하는 체결장치를 제공한다. 
     4. 발명의 중요한 용도 
     단 한번의 밀어넣기 작업으로 관의 체결이 가능하며, 필요시 간단한 조작으로 관의 탈거가 가능하며, 별도의 밀봉용 테이프 등을 사용하지 않고도 우수한 밀봉효과를 기대할 수 있는, 유체나 기체 등을 이송하는 배관이 사용되는 모든 유압 및 공압기계(이하 유공압기계) 장치류에 적용될 수 있는 관류 체결 장치이다.
Patent KR-19990023441-A (KR)
Title: 미소 볼의 탑재 장치 및 탑재 방법
IPC: H05K3/34
Filed: 1998-08-07
Abstract: 도전성 볼에 소정량의 플럭스를 확실히 도포할 수 있는 도전성 볼의 탑재 이송 장치 및 탑재 이송 방법을 제공하는 것을 목적으로 한다. 
     도전성 볼(1)에 플럭스 저장부의 용기(16)에 저장된 플럭스(2)를 도포할 때에, 용기(16)의 평탄한 저면(16a)에 소정 막두께의 플럭스(2)를 스퀴지 유닛(17)에 의해 도포한다.  이어서 용기(16)에 대하여 도전성 볼(1)을 흡착한 흡착 헤드(20)를 하강시켜, 용기(16)의 저면(16a)에 도전성 볼(1)이 접촉한 것을 흡착 헤드(20)의 터치 센서(43)에 의해 검출한 후에 흡착 헤드(20)를 상승시키고, 그 다음 흡착 헤드(20)에 유지된 도전성 볼(1)을 워크에 탑재 이송한다.  이에 따라, 확실히 소정량의 플럭스(2)를 전사(轉寫)하여 도포된 도전성 볼(1)을 워크에 탑재 이송할 수 있다.
Patent KR-19980081995-A (KR)
Title: 디스플레이기능을 갖는 공중전화기
Filed: 1998-08-12
Abstract: 본 발명은 공중전화기에 관한 것으로, 전화기로서의 기능뿐만 아니라 광고나 홍보 등을 위한 디스플레이 기능과 인터넷 등의 컴퓨터통신 기능을 하는 공중전화기에 관한 것이다. 본 발명의 공중전화기는, 몸체와, 송수화기·주화 또는 카드 삽입구·금액 표시창·동전반환구·키버튼으로 구성되는 전화부를 갖는 공중전화기로서, 상기 전화부가 배치된 몸체의 나머지 부분에 디스플레이부가 위치하는 것을 특징으로 한다. 상기 디스플레이부는 광고물을 부착하는 판, 전광상자(light box), 액정표시판(LCD), 인쇄물을 담을 수 있는 수납함임을 특징으로 한다. 본 발명은 동전식, 카드식, 동전겸 카드식, 발신전용, 착발신 겸용, 기타 모든 공중전화기에 적용가능하다.
Patent KR-20000014565-A (KR)
Title: Method and device for controlling a tracking/sled velocity of an optical disk system
Inventor: KIM YONG-SEOK
IPC: G11B19/02
Filed: 1998-08-21
Abstract: PURPOSE: A tracking/sled velocity controlling method is provided to full in to a target track safely in a short time by applying a velocity profile value corresponding to the number of tracks counted by a control of a microprocessor. CONSTITUTION: The control method of an optical disk system comprises the steps of: (a) counting every period of a counter clock signal or a track zero-cross signal; (b) checking whether or not a moving velocity count value is identical to a velocity profile value; (c) maintaining a present track jump velocity when the moving velocity count value is identical to the velocity profile value; (d) checking whether or not the moving velocity count value is larger than the velocity profile value when the moving velocity count value is not identical to the velocity profile value; (e) increasing the track jump velocity when the moving velocity count value is larger than the velocity profile value; and (f) decreasing the track jump velocity when the moving velocity count value is less than the velocity profile value.
Patent KR-20000015030-A (KR)
Title: Wireless communication system having a recovery circuit
Inventor: KIM CHEOL JIN
IPC: H04L1/00
Filed: 1998-08-26
Abstract: PURPOSE: A wireless communication system is provided to exactly recover a received data signal. CONSTITUTION: A recovery circuit for recovering digital data, by decoding the digital data encoded to a manchester code, to original data, comprises: a level controller for receiving the encoded digital data to the manchester code, comparing with digital data of a threshold level, and outputting binary data of two bits according to the result; a pattern detector for detecting a pattern, which the binary number 1 and 0 are consecutively inputted N by N from the level controller, or which the binary number 0 and 1 are consecutively inputted N by N, and outputting a pattern detection signal counted as predetermined numbers, by counting the number of times of the detected pattern; a data recoverer for receiving the digital data of consecutive N, from the level controller, and recovering to the corresponding digital data.
Patent KR-20000015242-A (KR)
Title: Method for manufacturing a semiconductor integrated circuit
Inventor: OH JEONG-HEE
IPC: H01L21/3065
Filed: 1998-08-27
Abstract: PURPOSE: A method for manufacturing a semiconductor integrated circuit is provided, which has an insulating film at a backside of a semiconductor substrate and generates a capacitor between the substrate and a plate. CONSTITUTION: The method for manufacturing a semiconductor integrated circuit comprises the steps of: forming an oxidation film or a nitration film at a backside of a semiconductor substrate (10) using an insulating film (20); forming a device dividing film (14) at a field region of the semiconductor substrate (10); successively depositing a gate oxidation film (11), a gate (12), and an upper portion insulating film (13) on the semiconductor substrate (10); and forming a gate electrode pattern using a plasma etching process, wherein the insulating film (20) is operated as a capacitor between the semiconductor substrate (10) and a plate of an etching equipment. Thereby, it is possible to decrease the damage of the plasma.
Patent KR-20000018834-A (KR)
Title: Furnace for flattening an interlayer insulator of wafer wires
Inventor: SHIN SEUNG HYUN
IPC: H01L21/312
Filed: 1998-09-05
Abstract: PURPOSE: A furnace for flattening an interlayer insulator of wafer wires is provided to restrain a boron rock generated by reaction between the interlayer insulator and an oxygen inflow in the furnace due to a sealing failure. CONSTITUTION: An auto door(4) is formed at an aperture of an elephant tube(2). A wafer(6)having an interlayer insulator is loaded into the elephant tube and then annealed. A gas spray nozzle(10) is located at one side wall of the aperture of the elephant tube(2) for spraying N2 gases, and an exhaust port(12) is formed at other side wall of the aperture of the elephant tube(2) for exhausting the N2 gas. Using a nitrogen gas curtain(8) formed between the spray nozzle(10) and the exhausting port(12), outside airs are perfectly cut.
Patent KR-20000019793-A (KR)
Title: Repetition apparatus for mobile communication service in inside of tunnel and installation method
Inventor: JOO GI HOON
IPC: H04Q7/38
Filed: 1998-09-15
Abstract: PURPOSE: A repetition apparatus for a mobile communication service in inside of the tunnel and an installation method are provided to provide a mobile communication service at the center of the inside of a tunnel long as a radio frequency signal cannot be transmitted. CONSTITUTION: A repetition apparatus for a mobile communication service in inside of the tunnel includes an exterior antenna(210, 310), a repeater(120, 160), a leakage coaxial cable140, 240, 340), and a tunnel antenna(250, 350). The exterior antenna is located outside of the tunnel entrance. The repeater is connected to the exterior antenna. A terminal part of the leakage coaxial cable is connected to the repeater through a feeder. The leakage coaxial cable is to transmit and receive a radio frequency signal in the inside of the tunnel. The tunnel antenna is connected to other terminal part of the leakage coaxial cable. The tunnel antenna is to transmit and receive a radio frequency signal in the inside of the tunnel.
Patent KR-19990036899-A (KR)
Title: 양방향 통신시스템에서 터미널을 조절하는 파워 조절 방법
IPC: H04B7/005
Filed: 1998-10-07
Abstract: 본 발명은 유선 텔레비전 플랜트(cable television plant)와 같은 양방향 통신시스템(bi-directional communication system)에서 그 터미널을 조절하는 파워조절을 위한 장치와 방법에 관한 것이다. 한 번의 반복, 곧 사이클(cycle) 방법은, 원격 터미널(remote terminal)에 적절한 터미널 전송기 파워레벨(terminal transmitter power level)을 얻는데 이용된다. 폴링신호(polling signal)는 제어기에서 터미널(terminal)로 향하는 다운스트림(downstream) 방향으로 전송된다. 제어기가 터미널로부터 업스트림이 전송되는 상태신호(status signal)를 받으면, 상기 제어기는, 받아들일 수 있는 정도의 파워레벨들의 사전 결정된 범위(predetermined range)에서, 헤드엔드(head end)에서 측정되는 수신된 파워레벨(received power level)을 비교한다. 상기 파워레벨이 상기 사전 결정된 범위 밖에 있으면, 상기 제어기는 상기 터미널로 향하는 다운스트림 방향으로 터미널 전송기 파워레벨을 계산하여 전송한다. 상기 반복, 곧 사이클 방법은, 상기 수신된 파워레벨이 상기 사전결정된 범위 안에 있을 때까지 반복된다. 특정 횟수의 사이클을 반복한 다음에 상기 터미널의 상기 수신된 파워레벨이 상기 사전결정된 범위 밖에 있거나, 상기 헤드엔드(head end)가 상태신호를 받지 않았으면, 상기 제어기는 상기 사이클을 중지하거나 상기 터미널을 되살리는 시도를 한다.
Patent KR-20000025846-A (KR)
Title: Method for buffering video data in video compression system
Inventor: SEO YOU SEOK
IPC: H04N7/26
Filed: 1998-10-10
Abstract: PURPOSE: A method for buffering video data in a video compression system is provided to enhance a quality of a video communication with a minimization of a transmission delay by preventing an overflow caused from a buffer. CONSTITUTION: An inputted video data is transformed by the block unit according to a discrete orthogonal transformation to be stored by the discrete orthogonal transformation component unit. Zonal quantization parameters are applied to a quantizer(2) to control a discrete cosine transform(DCT) range to be quantized. The zonal quantization parameters designates a quantization step size as well as a position of DCT value according to occupancy of a buffer. A video data transmission rate control part is included to vary a quantization coefficient value according to the occupancy of the buffer.
Patent KR-19990037162-A (KR)
IPC: B65B61/20
Filed: 1998-10-16
Abstract: The device attaches a drinking straw (4) to the side of each foil package (2) using a pair of straw feeds (32,34) and cutters for separation of the straws from a pair of drinking straw bands. The drinking straw bands are operated in synchronism with a transport device (10) for the foil packages, via an electronic control (30), so they attach straws to the successive foil packages in alternation.
Patent KR-19990007650-A (KR)
Title: 코일 합성수지 진동판 두께 조정 성형기 및 성형 방법
Filed: 1998-10-17
Abstract: 본 발명은 스피커, 이어폰, 마이크 등에 사용되는 코일형 진동판의 합성수지용 필름의 두께를 조정 할 수 있는 성형기 및 그에 관한 성형 방법이다. 
     종래의 합성수지 필름은 진동판의 모양이 원을 유지함으로 특정 부분을 두껍게 하거나, 얇게 하는 기술은 불가능하게 보여졌다. 
     원형인 코일 진동판의 돔 부분을 두껍게 하고 날개 부분을 얇게 하면 음의 진폭이 넓어져 음질이 대단히 좋은 것으로 연구 결과 밝혀졌다. 
     하지만 이러한 것을 대량 생산 할 수 있는 기술은 너무나 어려운 기술 이였다. 
     우리는 수년간의 연구 끝에 이러한 기술을 개발하게 되었다. 
     기술적 해결로써 로울러에 성형 홈을 진동판 모양으로 특정 부분에 두께를 파내어 깊이를 유지하고, 적정한 온도로 필름을 예열한 다음 회전하고 있는 로울러에 필름을 집어넣어 성형 홈으로 지나가게 하면 홈의 깊이에 따라 특정 부분이 홈깊이로 얇아지거나, 두꺼운 모양으로 성형되는 것이다. 
     이렇게 성형된 합성수지 필름은 기존의 마스터 필름 금형을 통하여 성형하면 두께가 일정한 필름에 비교하여 보다 음질이 뛰어난 제품으로 생산된다.
Patent KR-20000026245-A (KR)
Title: Lead frame
Inventor: KIM HO HYEON
IPC: H01L21/60
Filed: 1998-10-19
Abstract: PURPOSE: A lead frame is provided to easily assemble two diodes having a common anode electrode structure. CONSTITUTION: A lead frame for assembling two diodes comprises: a lead frame plate(600) composed of conductive material on which two diodes are mounted; and three leads(610, 620) disposed in parallel with each other, the leads being connected to an external electrode. The central lead(620) among the three leads is not connected to the lead frame and the rest(610) of the three leads are connected to the lead frame.
Patent KR-19990037484-A (KR)
Title: 열가소성 투명 수지 조성물 및 그의 제조방법
IPC: C08L33/04
Filed: 1998-10-29
Abstract: 본 발명은 투명성이 우수한 열가소성 투명 수지 제조 방법에 관한 것으로서, 평균 입경이 600-1500 Å이고 겔 함량이 70-95 %이며 팽윤지수가 12-30인 소구경 폴리부타디엔 고무 라텍스 및 평균 입경이 2600-5000 Å이고 겔 함량이 70-95 %이며 팽윤지수가 12-30인 대구경 폴리부타디엔 고무 라텍스에 메타크릴산 또는 아크릴산 알킬에스테르 화합물, 방향족비닐 화합물 및 비닐시안 화합물인 단량체를 그라프트 중합시켜 제조된 열가소성 수지는 소구경 및 대구경 폴리부타디엔 고무 라텍스 혼합물을 사용하고, 도입되는 각 성분들의 함량을 조절하여 폴리부타디엔의 굴절률과 여기에 그라프팅 되는 메타크릴산 또는 아크릴산 알킬에스테르, 방향족비닐, 비닐시안 혼합물의 굴절률을 최적화 하여 내충격성, 내약품성, 가공성 등이 우수하고 투명성이 극히 우수하다.
Patent KR-20000032451-A (KR)
Title: Electric fuse for memory chip
Inventor: KWON HO YEOP
IPC: H01L29/74
Filed: 1998-11-14
Abstract: PURPOSE: An electric fuse for memory chip is provided to simplify fabrication process without additional protective circuit. CONSTITUTION: An electric fuse comprises a first transistor(41) and a second transistor(42). The first transistor(41) includes a source connected with a common terminal(COMM) of ground potential, a drain connected with a bit line(B/L), and a floating gate. The floating gate of the first transistor(41) is commonly connected with a gate of the second transistor(42). Poly silicon (Poly-Si) is used as the common floating gate. A source and a drain of the second transistor(42) are commonly connected with each other and then connected with a word line(W/L) formed across the bit line(B/L).
Patent KR-20000034744-A (KR)
Title: Method for automatically setting channel for tv
Inventor: KIM MIN TAE
IPC: H04N5/50
Filed: 1998-11-30
Abstract: PURPOSE: A method for automatically setting channel for TV is provided so that user's convenience become increased by achieving automatically channel setting without a repeat operation such as a skip, search, and store, thereby reducing the time being required a tuning operation. CONSTITUTION: A method for automatically setting channel for TV includes several steps.A step is to receive and detect the broadcasting information data when the TV is turned on(S301). A step is to searching the reference channel including the data relating to whole broadcasting stations by using the detected PDC data (S303). A step is to reading data such as a frequency table/ channel name, which is included in the searched the broadcasting signal of the reference channel(S305). A step is to complete tunning of whole channels by tunning operation of broadcasting channels unsing the read out data of the reference channel(S307).
Patent KR-19990081804-A (KR)
Title: Pll가속시스템
IPC: H03L7/181
Filed: 1998-12-12
Abstract: 본 발명은 검파 카운터로 PLL 응답시간을 가속하는 시스템에 관한 것이다. 이 PLL은 위상 검파기와 검파 카운터를 이용한다. 초기에 PLL의 동작은 검파 카운터에 의해 제어되며, 위상 검파기의 출력은 PLL 시스템에 영향을 주지 않는다. 이 기간동안 PLL은 입력 클록 주파수와 동기된다. PLL이 소정 주파수범위에 도달한 후에, 검파 카운터는 작동이 정지된다. 다음에, 위상 검파기는 PLL의 동작을 제어한다. 이 기간동안 PLL은 입력신호의 주파수와 위상 모두 동기된다.
Patent KR-20000039865-A (KR)
Title: Method for connecting to internet call in exchange system
Inventor: OH MAN KWON
IPC: H04Q1/00
Filed: 1998-12-16
Abstract: PURPOSE: A method for connecting to an internet call in an exchange system is provided to remove a block of voice calls and an increase of traffics and thus prevent a trunk line congestion, by forming an internet service path via a T-switch of a member's subsystem and an internet gateway when a request for connection to an internet call occurs. CONSTITUTION: A member's subsystem receives a terminating number(S31). A controller(22) requests an interpreter(23) to interpret the terminating number(S32). The controller(22) checks(S33) the result of the interpretation in order to determine if an internet call is made. If not the internet call, the controller(22) provides a general service for a voice call(S34), and otherwise it checks(S35) if there exists an idle channel for connecting to an internet gateway(26). If the idle channel exists, the controller(22) determines(S36) whether an internet service is possible. If the internet service is possible, the controller(22) forms an internet service path connected to an internet network. If the idle channel does not exist, the controller(22) switches(S38) the internet call to other member's subsystem.
Patent KR-19990063129-A (KR)
Title: 집적 회로 테스트 방법
IPC: G01R31/28
Filed: 1998-12-16
Abstract: 본 발명은, 패키징되거나 패키징되지 않은 IC 디바이스를 테스트하기 위한 기법을 개시하는데, 디바이스는 끈적끈적한 이방성 전도성 매체(ACM) 층 상에 정렬되어 배치된다.  점성 ACM 층은 테스트하는 동안에 IC 디바이스에 대해 필요한 전기적인 콘택트를 제공하며, 또한, 스테이션(station)간의 이동 중에 IC 디바이스의 정렬을 보존한다.  IC 디바이스의 전기적인 테스트가 완료되면, IC 디바이스는 점성 층으로부터 자유롭게 분리되며 상호접속 기판에 영구적으로 접합된다.  일실시예에 있어서, 테스트 상호접속 기판은 영구적인 상호접속 기판의 복제이다.  본 발명의 다른 실행 모드에 있어서, 테스트 상호접속 기판은 실제로 영구적인 상호접속 기판이며, IC 디바이스는 전기적인 테스트후 즉시 접합된다.
Patent KR-20000040010-A (KR)
Title: Molding materials and molding products using zeolites
Inventor: HWANG HO SE
IPC: C04B35/66
Filed: 1998-12-15
Abstract: PURPOSE: Molding materials using zeolites as a major ingredient are provide to give a variety of benefits, such as high formability, good appearance, excellent lightness, many interests in human being including offering pleasant environment, antimicrobial activity and any oriental pharmaceutical efficacy. CONSTITUTION: A method for producing molding materials comprises the steps of: (i) mixing 70% of zeolites, 10% of glass fibers and 20% of synthetic resins, and then melting the mixture at a temperature of 150°C; (ii) extruding the melted mixture in the form of board, panel etc.; (iii) press-processing the surface of the board/panel to form desired patterns.
Patent KR-20000042177-A (KR)
Title: Method of setting rolling load considering bending force
Inventor: SEO JAE HYEONG
IPC: B21B37/00
Filed: 1998-12-24
Abstract: PURPOSE: A method of setting a rolling load considering a bending force is provided to prevent the generation of a sheet crown in rolling with a roll having a large width. CONSTITUTION: A method of setting a bending force given to a work roll bender comprises the steps of: obtaining a calculating formula of a sheet crown having a rolling load(P) and a bending force(B) as variables by roll transformation analyzing simulation; setting a weighted value for a variety of rolling conditions including the rolling load and bending force by analyzing the obtained data from real rolling; calculating first rolling load and bending force to the weighted value from the calculating formula of the sheet crown; calculating second data; and setting the rolling load by considering the deviation between the first and second rolling load. Therefore, the method is useful for designing the work roll bender by setting the optimum bending force and rolling load for the sheet crown.
Patent KR-20000042480-A (KR)
Title: Method for fabricating capacitor of semiconductor device
Inventor: KIM GYEONG MIN
IPC: H01L27/108
Filed: 1998-12-24
Abstract: PURPOSE: A method for fabricating a capacitor of a semiconductor device is provided to achieve the electric property of the device and to improve reliability of the device thereby. CONSTITUTION: A method for fabricating a capacitor of a semiconductor device comprises forming an interlayer insulating layer(13) with contact holes, forming a lower electrode with polycrystalline silicon layer(15) over the interlayer insulating layer(13), treating the polycrystalline silicon layer(15) by rapid thermal nitrification, treating the polycrystalline silicon layer(15) in an ozone plasma, forming a tantalum oxide layer(21) as a dielectric layer over the polycrystalline silicon layer(15), treating the tantalum oxide layer(21) in another plasma, annealing the tantalum oxide layer(21) in high temperature, and forming a titanium nitride layer(23) as an upper electrode over the tantalum oxide layer(21).