baber/WOPTO huggingface dataset:
Patent KR-20020050540-A (KR)
Title: Method for transmitting tone signal for voice over internet protocol system
Inventor: LEE JUN SEO
IPC: H04L12/66
Filed: 2000-12-21
Abstract: PURPOSE: A method for transmitting a tone signal in a VoIP(Voice over Internet Protocol) system is provided to minimize a loss or wrong recognition of DTMF information while guaranteeing a character of real time when a VoIP system transmits a DTMF signal. CONSTITUTION: An originating VoIP system and a serving VoIP system respectively create a DTMF transmitting task and a DTMF receiving task, open sockets using a UDP transmitting port and a UDP receiving port, and set up a DTMF transmitting port and a DTMF receiving port(300). If a voice channel is allocated as VoIP call setup is completed, voice data are transmitted between the VoIP systems(302). In this state, if a DTMF signal is generated from a telephone and it is inputted to the originating VoIP system, the DTMF signal is detected by a DSP manager task(304). The DSP manager task sends this information to the DTMF transmitting task through an H.323 main control task. The DTMF transmitting task transmits a DTMF information message, the digit information of the detected DTMF signal, to the DTMF receiving port of the serving VoIP system(306). Receiving the DTMF information message, the serving VoIP system generates a DTMF signal corresponding to the digit information of the DTMF information message and sends it to a serving side subscriber(310).
Patent KR-20020053157-A (KR)
Title: Subcode processing apparatus having function of protecting subcode sync pattern signal in portable optical disc system and method thereof
Inventor: LEE SEOK JEONG
IPC: G11B20/18
Filed: 2000-12-27
Abstract: PURPOSE: A subcode processing device having a function of protecting subcode synchronous pattern signals in a portable optical disk system is provided to selectively use the first subcode synchronous pattern signal and the second subcode synchronous pattern signal as an input signal, and to decide whether the first or the second subcode synchronous pattern signal is normally generated, to create a subcode Q error checking completion signal, thereby increasing accuracy of the subcode Q error checking completion signal in a double-speed conversion mode. CONSTITUTION: A subcode decoder(210) decodes subcode data, and outputs decoded results as multi-bit subcode data, write-in frame clock signals, and the first/the second subcode synchronous pattern signals. A subcode synchronous pattern controller(220) detects whether the first and the second subcode synchronous pattern signals are exactly generated, and outputs an error checking subcode synchronous pattern signal and a shock protect subcode synchronous pattern signal. A subcode Q error checker(230) checks an error of subcode data of a Q channel among the decoded subcode data, and outputs a checked result as an error checking completion signal. The first multiplexer(222) inputs the error checking completion signal and a shock protect control signal, and selectively outputs one of the inputted signals in response to a selection signal. An ESP(Electronic Shock Protect) unit(250) performs a shock protect function in response to the subcode synchronous pattern signal for protecting shock and the output signal of the first multiplexer.
Patent KR-20020056530-A (KR)
Title: apparatus for reducing a rolling of a vehicle
Inventor: KIM SANG YUN
IPC: B60G21/05
Filed: 2000-12-29
Abstract: PURPOSE: A device for reducing rolling of a car is provided to simply reduce rolling by restricting the movement of a plate spring and to reduce a manufacturing cost without mounting a complex stabilizer system. CONSTITUTION: A device for reducing rolling of a car includes plate springs(26) mounted between a frame(22) and an axle(24) at right and left wheels of the car. The plate spring has an end connected to a hinge bracket(34) fixed to the frame by a pin and the other end connected to a rod connecting the frame. Locking parts(36a) are formed at both ends of the rod, and a jaw part(28a) is formed at the end of the plate spring and caught to the locking part. A restriction member(40) is connected to the end of the plate spring to restrict the jaw part to prevent separation from the locking part.
Patent KR-20020056675-A (KR)
Title: Liquid crystal display apparatus having high aperture ratio through data line structure
Inventor: KIM EOK SU
IPC: G02F1/1343
Filed: 2000-12-29
Abstract: PURPOSE: A liquid crystal display having high aperture ratio through a data line structure is provided to form two data lines between neighboring pixels so as to reduce a distance between neighboring pixel and data line and neighboring two pixels, thereby improving aperture ratio. CONSTITUTION: Two data lines adjacent to each other are formed between neighboring pixels. One data line is placed between the first pixel and the second pixel, and the second pixel and the third pixel have no data line between them. A shielding bar is formed between the second and third pixels. Two data lines are formed between the third pixel and the first pixel of the next dot.
Patent KR-20010021658-A (KR)
Title: 재기록가능한 광 정보매체
IPC: G11B7/24
Filed: 1999-05-10
Abstract: 2개의 유전층(3, 5) 사이에 삽입된 상변화 기록층(4)을 지닌 제 1 기록 적층체(1)를 갖는 재기록가능한 단면 이중층 광 정보매체에 대해 개시된다.  이 기록 적층체(2)는, 제 2 기록 적층체(9)의 적절한 판독/기록을 보장할 수 있을 정보의 충분한 투과도를 갖는다.  이를 위해, 기록 적층체(2)는 얇은 금속층(6)과 또 다른 유전층(7)을 구비한다.  레이저 빔(14, 15)이 제 1 기록 적층체(2) 또는 제 2 기록 적층체(9) 위에 초점이 맞추어지므로, 기록매체의 저장용량을 2배로 할 수 있다.
Patent KR-20010022922-A (KR)
Title: 증기 또는 다른 가열된 가스 또는 액체를 이용한 가스 수화물의 재가스화 방법 및 장치
IPC: F17C9/00
Filed: 1998-09-25
Abstract: 가스 수화물로부터 가스를 유리시키기 위한 방법 및 장치는 벌크 가스 수화물(12)에 인접하게 또는 그 내부에 제공된, 가스 또는 액체(바람직하기는 증기)로부터의 열에 가스 수화물을 노출시키는 장치의 사용을 포함한다. 가스 수화물은 가스 또는 액체에 직접적으로 노출될 수 있거나, 또는 열 전도성 코일 또는 채널(16)을 통하여 간접적으로 노출될 수 있다. 액체 또는 가스로부터의 열은 가스 수화물을 대응 가스 성분과 물로 해리한다. 해리 후에, 가스 성분은 다른 저장, 운송 및 이용을 위하여 수집될 수 있다. 본 장치는 가스 수화물을 열에 노출시키기 위한 장치를 통하여 가스 또는 액체의 적어도 일부분을 이동시키기 위한 메커니즘(32)을 더 포함한다. 이 장치는 또한 이동할 수 있어 연속적인 수화물 재가스화를 위하여 가스 수화물에 근접하게 또는 가스 수화물과 접촉하는 상태로 유지시킬 수 있다.
Patent KR-20010023997-A (KR)
Title: 잉크 제트 기록 및 전자사진 기록 겸용지
IPC: B41J2/01
Filed: 1999-07-15
Abstract: 본 발명의 목적은 잉크 제트 기록시의 화상의 내수성이 우수하고 전자사진 기록시의 토너의 전사성과 그 이송성이 우수한 잉크 제트 기록 및 전자사진 기록 겸용지를 제공함에 있다. 
     본 발명에 의하여 양이온 수지가 0.5 ∼ 2.0 g/m 2 의 건조 부착량으로 지지체에 부착되어 있고, 표면 비저항이 1.0 ×10 9 ∼ 9.9 ×10 13 Ω인 잉크 제트 기록 및 전자사진 기록 겸용지를 제공한다. 
     바람직하게는 양이온 수지는 콜로이드 적정법으로 측정한 양이온 당량이 3 ∼ 8 meq/g이고, 이 지지체에 사용되는 내부 사이징제로서 중성 로진 사이징제 혹은 알케닐 숙신산 무수물이다. 또한 이 지지체는 고지 펄프를 함유해도 좋다.
Patent KR-20010042661-A (KR)
Title: Ｒ-(+)-6-카르복사미도-3-ｎ-메틸아미노-1,2,3,4-테트라히드로카르바졸의 제조 방법
IPC: C07D209/88
Filed: 1999-04-16
Abstract: R-(+)-6-카르복사미도-3-N-메틸아미노-1,2,3,4-테트라히드로카르바졸의 신규 제조 방법이 개시되어 있다.
Patent KR-20010052856-A (KR)
Title: 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치
IPC: H04M11/00
Filed: 2000-04-19
Abstract: 본 발명은 전용 또는 표준 FEC 처리를 갖지 않는 음성 코더(speed coder)에서 패킷(packet) 손실 또는 프레임 삭제 은폐(Frame Erasure Concealment, FEC)를 실행하기 위한 방법 및 장치에 관한 것이다.  디코더를 갖춘 수신기는 인코더로부터 전송된 압축 음성 정보의 부호화 프레임을 수신한다.  수신기에 있는 손실 프레임 검출기는 부호화 프레임이 전송시 손실되거나 변형되었나, 또는 삭제되었나 여부를 결정한다.  부호화 프레임이 삭제되지 않았으면, 부호화 프레임은 디코더에 의해 복호화되고 임시 메모리는 디코더의 출력으로 업데이트된다.  소정의 지연 주기가 적용되어 오디오 프레임이 출력된다.  부호화 프레임이 삭제된 것으로 손실 프레임 검출기가 결정하면, FEC 모듈은 신호에 프레임 은폐 처리를 적용한다.  FEC 처리는 삭제된 프레임에 대해 자연스럽게 들리는 합성 음성을 만든다.
Patent KR-20010071611-A (KR)
Title: 경질의 탭 부재가 마련된 선택적으로 분리 가능한 뚜껑을포함하는 용기
IPC: B65D43/06
Filed: 1999-06-11
Abstract: 사발(12)과 선택적으로 분리 가능한 뚜껑(14)의 조합체를 포함하는 용기(10)가 개시된다.  상기 사발은 주변으로 연장되고 실질적으로 U자 형태인 밀봉 립(32)이 마련된 상향 돌출 벽(18)을 포함하는 단일 구조이다.  상기 선택적으로 분리 가능한 뚜껑은 상기 사발의 밀봉 립과 결합하는 주변 밀봉 립(32)이 마련된 본체(30)와, 뚜껑을 사발로부터 분리하는 것을 도와주고 측방향으로 연장되는 적어도 하나의 탭 부재(40)를 포함하는 단일 구조이다.  사발과 뚜껑 부분 모두 냉동 및 마이크로파로 재열하는 데에 적당한 탄성의 중합체 재료로 제조하는 것이 바람직하다.
Patent KR-20020063745-A (KR)
Title: Control Method For Apparatus Preventing Crimes In Airconditioner
Inventor: YOON DAE DEOK
IPC: F24F11/00
Filed: 2001-01-30
Abstract: PURPOSE: A method for controlling air conditioner with anti-crime function is provided to prevent crime as well as execute function of the air conditioner. CONSTITUTION: A method includes the steps of: a step(S20) determining operational condition of anti-crime function included in an air conditioner; a step(S30) determining condition of a door in a control device of the air conditioner using a detective sensor comprising a door switch turned on when the door is closed and turned off when the door is open as the crime function is activated; and a step(S50) comparing and determining the condition of the door and activating an alarming device until the alarming device is inactivated(S70) by a user.
Patent KR-20010074105-A (KR)
Title: Pre-rewards system and method using credit card
Inventor: LEE HUN
Filed: 2001-02-19
Abstract: PURPOSE: A system and a method for a pre-compensation using a credit card are provided for a member store to secure fixed clients and enhance a selling amount by reinforcing a motive embodiment of a point collection through a pre-compensation. CONSTITUTION: A credit card reader(10) is connected to a cooperated credit card company server(40) through a telephone network and senses a credit card and may pay a commodity price by a credit card. A client terminal(20) is connected to a point managing server(30) and transmits and receives data based on all sorts of DBs when the client connects to the point managing server(30). The point managing server(30) comprises a member DB(310), a member certifying module(320), a pre-compensation DB(330), a member store(340), a member point DB(350), a commodity point calculating module(360), a point calculating module(370), an amount transmitting module(380) and a web server(390). If the client connects to the point managing server(30) and requests a joining to the membership through a client terminal(20), the point managing server(30) requests a credit of the user to the cooperated credit card company server(40) and approves the joining to the membership. The certified user receives a credit card.
Patent KR-20020068729-A (KR)
Inventor: SHIN BEOM JU
IPC: G11C29/00
Filed: 2001-02-22
Abstract: PURPOSE: A circuit for appreciating fail of DQ compression mode is provided to discriminate an error accurately and remove a transport error in a data input/output by adding a multiplexer and a latch in testing a DRAM(Dynamic Random Access Memory) in a wafer state. CONSTITUTION: A first AND-gate(21) performs a logic operation of global input/output data. A plurality of invertors(22,23,24,25) invert the global input/output data. A second AND-gate(26) performs a logic operation of the data output from the plurality of invertor(22,23,24,25). A latch unit(100) maintains a written signal. A multiplexer(200) receives the output of the first and the second AND-gate(21,26) to output an error discrimination signal in response to the output of the latch unit(100).
Patent KR-20010085592-A (KR)
Title: Automatic ticket checking apparatus
Inventor: IMATSUKA KATSUO
IPC: G07B15/02
Filed: 2001-02-26
Abstract: PURPOSE: An automatic ticket examination system is provided which copes with examination and collection of tickets, can be miniaturized, deals with magnetic and wireless tickets, operated in the high efficient operation conditions, and remarkably reduces the installation space and assuredly performs communication with the wireless tickets at the same time. CONSTITUTION: The automatic ticket examination system comprises a first return device returning magnetic tickets to a first direction along a first passage; a first ticket examination means judging whether the read information is available or not by reading information recorded in magnetic and wireless tickets; a second return device which is arranged at the side surface of the first return device and returns the magnetic tickets to a second direction reversely to the first direction along a second passage parallel to the first passage; and a second ticket examination device judging whether the read information is available or not by reading information recorded in the magnetic and wireless tickets.
Patent KR-20020073067-A (KR)
Title: Overmolding composition for preventing noise of in-manifold of vehicle
Inventor: CHO CHEOL HYEON
IPC: F02M35/12
Filed: 2001-03-14
Abstract: PURPOSE: An overmolding composition to reduce the noise of an intake manifold is provided to prevent the noise from being transferred to the inside of a vehicle by expanding the thickness of a surge tank. CONSTITUTION: An overmolding composition to reduce the noise of an intake manifold is composed of dimethyl terephthalate of 30-40 weight%, 1,4-butanediol of 20-30 weight%, and polypropylene glycol of 20-30 weight%.
Patent KR-20010067953-A (KR)
Title: A manufacturing method of padding for the use of upper
Inventor: JUNG CHANG HEON
IPC: B29D35/14
Filed: 2001-04-10
Abstract: PURPOSE: A method for manufacturing an inner reinforcing material of a shoes upper is provided to manufacture an inner reinforcing material by forming a continuous vertically laid web. Thereby the reinforcing material color isn't changed by heat, sunlight and moisture and the harmful gas isn't generated. CONSTITUTION: In the method for manufacturing an inner reinforcing material of a shoes upper, a few stages are included. In the stage of S11, the polyester staple raw cotton of the bale state passes a weighing hopper and the first cotton opening is carried out. The first cotton opened raw cotton is added with the regular weight ratio and is conveyed to a cotton opener and the cotton beating is carried out and it is separated. In the stage 12, the raw cotton, which passed the cotton opening progress, is beaten and passes a beater and each raw cotton is mixed evenly. The mixed raw cotton is conveyed to a storing tank and is evenly supplied to a carding machine by the hopper. In the stage of 13, a web of the evenly arranged state is formed by combing the supplied raw cotton with the regular direction. In the stage of 14, the arranged web has the thickness of 3-50mm and is formed as a web of the continuous vertically laid state. In the stage of 15, the web is cooled after applying the hot wind of 130-180 deg.C. In the stage of 16, the web, which passed the drying progress, is standardized and wrapped.
Patent KR-20010100951-A (KR)
Title: 티켓판매 장치, 티켓판매 시스템 및 티켓판매 방법
IPC: G06Q30/06
Filed: 2001-05-02
Abstract: 본 발명은 이벤트의 주최자 자신이 티켓을 판매하기 위한 시스템을 낮은 비용으로 실현시킬 수 있는 티켓판매 시스템을 제공하는 것을 목적으로 한다. 
     본 발명의 티켓판매 시스템(1)은 이용자가 통신망(5)을 통하여 티켓을 신청하고, 이 이용자가 선택한 티켓형태로 티켓을 송부하고, 티켓 요금을 이용자가 선택한 일반적인 요금 징수 기관(22, 24, 26, 28)에 지불함으로써, 티켓의 판매를 행하는 티켓판매 시스템으로, 티켓의 예약정보와 티켓형태와 요금 지불방법과 이용자의 개인정보를 통신망(5)을 통하여 접수하는 예약접수 수단(31)과, 좌석정보와 예약정보와 티켓형태에 의거하여 티켓을 생성하는 티켓생성 수단(32)과, 티켓을 이용자에게 송부하는 티켓송부 수단(33)과, 이용자가 요금 징수 기관에 티켓요금을 지불하였음을 확인하는 지불확인 수단(34)을 포함하는 것을 특징으로 한다.
Patent KR-20020085279-A (KR)
Title: A fine particles of Nickel and the method of processing thereof
Inventor: HONG GYE WON
IPC: B22F9/00
Filed: 2001-05-07
Abstract: PURPOSE: A method for manufacturing nickel metal powder is provided to manufacture the nickel metal powder by burning a mixture of Ni metal salt and fuel using an external heat source, and a nickel metal powder that is fine spherical powder of 20 to 30 nm manufactured by the method and has uniformed particle distribution is provided. CONSTITUTION: The method for manufacturing nickel metal powder comprises the step of burning a mixture of nickel salt and fuel, wherein the method for manufacturing the nickel metal powder comprises first step of preparing a precursor solution by mixing nickel salt, fuel and water; second step of drying the precursor solution; and third step of burning the dried mixture, the method further comprises the step of adjusting pH of the precursor solution to 0.5 to 1.5 after the step of preparing the precursor solution, the pH adjustment is done by addition of nitric acid, hydrochloric acid or sulfuric acid, the nickel salt is selected from nickel nitrate, nickel hydrochloride, nickel sulfate and nickel acetate, the fuel is a compound comprising amine group (-NH2) or carboxyl group (-CO2H), the fuel is selected from the group consisting of glycine, urea and citric acid, and the burning of the third step includes hot plate heating, resistance furnace heating or microwave heating.
Patent KR-20010074560-A (KR)
Title: Tunable gain-flattening filter using microbending long-period fiber grating
Inventor: KIM JEONG HUN
IPC: G02B5/20
Filed: 2001-05-04
Abstract: PURPOSE: A tuneable gain flattening filter of an erbium-doped fiber amplifier by using a micro bending long period fiber grating is provided to flatten a gain spectrum of an uneven optical fiber amplifier actively by controlling the central wavelength and depth of an optical absorption band with changing the grating period. CONSTITUTION: The tuneable gain flattening filter(GFF) of the erbium-doped fiber amplifier(EDFA) by using the micro bending long period fiber grating includes a few stages. In the first stage, the graphite rods(6) are arranged on a plate(7). In the second stage, the EDF(2) of the EDFA is layed on the plate(7) and micro-bending is formed on the optical core by the strain(3). In the third stage, the grating period is changed by using the angle among the graphite rods(6) and the central wavelength of the absorption band is tuned to be in accord with the wavelength large in the EDFA gain. In the fourth stage, the tuneable GFF is completed to maintain an uneven gain spectrum evenly according to the wavelength.
Patent KR-20020087202-A (KR)
Inventor: KIM JEONG IN
IPC: G06F21/12
Filed: 2001-05-14
Abstract: PURPOSE: A computer is provided to perform a security function and a storing media function by installing a removable storing device having a data storing part and a password storing part, and a controller permitting an operation of the system through the password comparison. CONSTITUTION: The removable storing device(50) includes a casing, a rewritable memory(52) having the data storing part storing the data and the password storing part storing a user password, and a connector(59) transmitting the data in the memory. An interface(40) is installed to a main board and transmits the data by removably connecting with the connector of the removable storing device. In case that the user password transmitted through the interface is matched with a device password, the controller(31) permits the operation of the system. The controller is installed in a BIOS(Basic Input/Output System) ROM.
Patent KR-20010107584-A (KR)
Title: 클러치 드럼
IPC: F16D25/12
Filed: 2001-05-17
Abstract: 본 발명은 클러치 드럼의 기계적손실을 억제하면서 클러치 드럼을 경량화하기 위한 것이다. 
     본 발명의 클러치 드럼(15)은, 복수의 클러치플레이트(17)를 수용하고, 원통형부(23)와, 상기 원통형부(23)의 내주측에 원주방향으로 배치되고 축방향으로 연장되는 복수의 톱니(25)를 가지고 있다. 상기 복수의 톱니(25)는 톱니 정상부(29) 및 회전방향 양측의 톱니 플랭크(31)를 가진다. 상기 원통형부(23)의 내주면에는 톱니(25)의 축방향 사이에 톱니 바닥면(35)이 형성된다. 상기 원통형부(23)의 외주면에서 톱니(25)에 대응하는 부분에는 외주오목부(37)가 형성되고, 상기 톱니(25)의 내주면에는 내주오목부(27)가 형성된다.
Patent KR-20020092133-A (KR)
Title: Apparatus of controling for use in electric inertia load test of a railway vehicle
Inventor: CHO JEONG MIN
IPC: B61L25/00
Filed: 2001-06-02
Abstract: PURPOSE: A control device for testing an electrical inertia load of a railroad car is provided to reduce a manufacturing cost and a malfunction of the control device by adding a function of an A/D converter, a function of a flash ROM, and a pulse width modulation function to a high-speed operating function of existing DSP(Digital Signal Processing) portion. CONSTITUTION: A control device is formed with a power supply converter for supplying electric power to an inertia simulator, an AD converter for measuring output torque and the amount of current of the power converter, an encoder portion for measuring a speed of a motor, a power converter for reducing the power for sharing a DC link terminal, and a database unit for consuming the power to prevent a boosting phenomenon of the DC link terminal. TMS320F240 is used as a microprocessor. The TMS320F240 has a function of an A/D converter, a function of a flash ROM, and a pulse width modulation function as well as a high-speed operating function of an existing DSP portion.
Patent KR-20020096179-A (KR)
Title: Composition for preventing and treating of skin aging
Inventor: KIM MUN MU
IPC: A61K8/67
Filed: 2001-06-18
Abstract: PURPOSE: A composition for prophylaxis and treatment of skin aging containing a procyanidin oligomer separated from Ulmus macrocarpa, Ulmus pumila, Ulmus davidiana or the like is provided which is safe when applied to the skin, promotes activation of collagen metabolism, improves skin winkles, enhances skin elasticity and inhibits formation of skin wrinkles. CONSTITUTION: This prophylactic and therapeutic composition for skin aging contains 0.001 to 10% by weight of a procyanidin oligomer having an average polymerization degree of 4.5 to 6.0 and 0.001 to 5% by weight of an active oxygen-producing inhibitor, polyethoxylation retinamide derivatives or a mixture thereof, based on the total weight of the composition. The procyanidin oligomer comprises 3 to 12 monomers containing flavan-2-ol as a basic skeleton.
Patent KR-20010079277-A (KR)
Inventor: KIM U YEONG
IPC: E05F11/53
Filed: 2001-06-29
Abstract: PURPOSE: A door push/pull device is provided to reduce the vibration, noise or heat loss generated in a vehicle and to prevent the wear of joining parts due to the friction caused by a clearance between a door and a vehicle body by maintaining a closed door under pressure against the joining part of the vehicle body, thereby preventing the damage of the door and extending the lifespan. CONSTITUTION: A door push/pull device includes a link unit(200) whose component parts are mounted at upper and lower parts of a door(100) to move in association for moving the door to and from a vehicle body when opening or closing the door, and a transmission element(300) coupled at an upper end part of the door for transmitting the right and left movement of a door engine(110) to the door to closely contact the door with the vehicle body without any clearance when closing the door, reducing the vibration or noise generated in the vehicle.
Patent KR-20030002741-A (KR)
Title: Method of forming a isolation layer in a semiconductor device
Inventor: RYU DU YEOL
IPC: H01L21/76
Filed: 2001-06-29
Abstract: PURPOSE: An isolation layer formation method of semiconductor devices is provided to prevent etching of upper edges of an isolation layer when cleaning by forming an oxy-nitrification layer on the surface of the isolation layer. CONSTITUTION: A pad oxide, a polysilicon layer and a pad nitride are sequentially formed on a semiconductor substrate(31). A trench is then formed. An oxide layer(36) is formed at sidewalls of the polysilicon layer and the bottom and inner walls of the trench. An oxy-nitrification layer(37) is formed at interface between the substrate(31) and the oxide layer(36) and polysilicon layer. An isolation layer(39) is then formed by entirely filling an insulating material into the trench. The pad nitride, the polysilicon layer and the pad oxide are removed.
Patent KR-20030003367-A (KR)
Inventor: LEE GA WON
IPC: H01L21/8242
Filed: 2001-06-30
Abstract: PURPOSE: A DRAM cell and a method for manufacturing the same are provided to improve driving force of the device by forming a word line under an active region, perform easily post-planarization and increase of alignment tolerance, and remove data sensing margin generating coupling capacitance between a bit line and a word line. CONSTITUTION: A first interlayer dielectric(39) is formed on a semiconductor substrate(41). A second silicon layer(35) of SOI substrate comprising a transistor(37) is formed on the first interlayer dielectric. A second interlayer dielectric(45) comprised of a first storage node contact hole and a bit line contact hole is formed on the first interlayer dielectric(39). A plug(49) is buried in the holes. A bit line(51) comprised of a nitride spacer(53) is formed on the plug. A third interlayer dielectric(55) comprised of a second storage node contact hole is formed on the bit line. A capacitor is formed on the third interlayer dielectric.