baber/WOPTO huggingface dataset:
Patent KR-20030031241-A (KR)
Title: Method for executing start application in mobile station
Inventor: HAN JAE BYEONG
IPC: G06F15/02
Filed: 2001-10-12
Abstract: PURPOSE: A method for executing a start program of a portable terminal is provided to enable a user to set up an application program operated when the portable terminal is booted up. CONSTITUTION: If the power is supplied to the portable terminal, a control part executes a booting procedure and an OS(Operating System) program(S320,S330). The control part judges that a start program is set by the user(S340). If the previously stored start program setting information exists, the start program is executed by referring to the previously stored setting information of the start program(S350). If the start program is not set, a waiting screen is displayed or an initial application program set by a manufacturer is executed(S360).
Patent KR-20030031741-A (KR)
Title: apparatus and method for web filtering using asymmetry traffic flow mode
Inventor: OH CHAE HYEONG
IPC: H04L12/28
Filed: 2001-10-16
Abstract: PURPOSE: A Web filtering apparatus and method using an asymmetrical traffic flow is provided to control a Web connection by filtering only an upload traffic of a user. CONSTITUTION: An upload traffic designated by a manager passes necessarily through a packet filtering unit(20) to come to the Internet, while a download traffic is directly transferred to a user from a packet redirect unit(10). The packet redirect unit(10) redirects an input traffic to a specific unit. When a traffic of a user is inputted to the packet redirect unit(10), the packet redirect unit redirects the traffic to the packet filtering unit(20). In detail, an Internet traffic generated by the user is inputted to the packet redirect unit(10), and then the packet redirect unit sends a traffic designated by the user to the packet filtering unit(20). Accordingly, the packet filtering unit(20) receives the packet redirected from the packet redirect unit(10). The packet filtering unit(20) reads the inputted packet, checks whether it needs to be filtered, and judges whether to allow a Web connection.
Patent KR-20030032694-A (KR)
Title: A carbonizing treating appartus for waste matter
Inventor: NORIO SUGIHARA
IPC: F23G5/10
Filed: 2001-10-19
Abstract: PURPOSE: A carbonizing apparatus by using a far infrared heater is provided to prevent power loss and increase working efficiency by reducing temperature increase time with directly heating, to discharge carbide easily by cooling the carbonizing container quickly, and to prevent environmental pollution by eliminating harmful gas and stink. CONSTITUTION: A carbonizing system includes a body case(1) having a far infrared heater, a carbonizing container and an opening door, and mounting insulating bricks in the inner wall; a tubular catalyst insulating part(2) having a dehumidifier(21), a catalytic heater(22), catalysts(23-27), a catalytic thermostat and a foreign matter removing heater(29); an air tank(3) having plural gas convection preventive plates(31) and connecting to the catalyst insulating part; an auxiliary filter(4) connecting to the air tank and having basic, acid and neutral active carbon; a vacuum pump(6) connecting to the auxiliary filter and an ozone generator and having a bubble generating pipe(61); a water tank(7) inserting the bubble generating pipe and having a gas outlet(71); and an electronic control panel(8) controlling operation. Temperature increase time is reduced by heating directly with using the far infrared heater.
Patent KR-20030035224-A (KR)
Title: Fixing method and its apparatus of PE tarpaulin
Inventor: KIM JIN HO
IPC: B29C65/08
Filed: 2001-10-30
Abstract: PURPOSE: An adhesive method and device of PE tarpaulin is provided to firmly bond the PE tarpaulin without the variation of properties of the PE tarpaulin by using ultrasonic waves. CONSTITUTION: An adhesive device of PE tarpaulin is composed of a compressing plate(20) transmitting ultrasonic waves to the PE tarpaulin(1) and compressing the PE tarpaulin, an ultrasonic wave generating and moving unit(10) generating ultrasonic waves, transmitting the ultrasonic waves to the compressing plate and moving the compressing plate up and down, and a support plate(30) supporting the PE tarpaulin at the lower part of the compressing plate.
Patent KR-20020001682-A (KR)
Title: Automatic pump
Inventor: LEE HEON U
IPC: F04D15/00
Filed: 2001-11-15
Abstract: PURPOSE: An automatic pump is provided to install the automatic pump regardless of direction by returning a valve connecting and shutting off an inlet pipe and an outlet pipe. CONSTITUTION: An automatic pump is composed of a magnetic casing(110) having an inlet pipe, an outlet pipe(115), a fluid passage and a control unit; an impeller(121) installed in the casing to flow fluid from the inlet pipe to the outlet pipe; a motor(125) rotating the impeller by the control unit; a guide member(130) installed in the passage of the casing; a cylindrical valve(140) inserted to the guide member to reciprocate linearly, and contacted to the guide member to apply hydraulic pressure of inlet and outlet pipes; and a first unit turning on and off the control unit, and contacting the valve to the guide member by moving the valve linearly in not discharging fluid to the outlet pipe. The valve connects the inlet pipe and the outlet pipe with moving linearly by pressure difference in discharging the fluid to the outlet pipe, and shuts off the pipes by contacting to the guide member in not discharging fluid. The automatic pump is installed regardless of direction.
Patent KR-20030040748-A (KR)
Inventor: JI SEUNG JU
IPC: E06B9/15
Filed: 2001-11-15
Abstract: PURPOSE: A shutter for a screen is provided to improve the effect of an advertisement. CONSTITUTION: The shutter for a screen contains connecting holes(12) formed on both ends of a connecting link(10) to be hinged continuously by connecting pins(11) to reciprocate along a motor for a shutter, a screen hole(13) formed on the center of the connecting link(10) and fixed with a coupler(20) which is provided with a coupling groove(21) and a screen fitting groove(22), and a screen plate(30) connected to the coupling groove(21) of the coupler(20) through the connecting link(10) and formed in a semitransparent acrylic plate to see an advertisement from the outside.
Patent KR-20030041697-A (KR)
Title: Water supplying device for refrigerator
Inventor: KIM YONG SIK
IPC: F25D25/00
Filed: 2001-11-21
Abstract: PURPOSE: A water supply device for a refrigerator is provided to neutralize the water being supplied into the refrigerator if the water is acid. CONSTITUTION: A water supply device comprises a pH measuring unit(110) for measuring pH of the water being supplied from a water supply source(Ws); a neutralization unit(120) for neutralizing the water by being turned on/off in accordance with the value measured by the pH measuring unit; and a purifying unit(130) for purifying the water passed through the neutralization unit. The water passed through the purifying unit is supplied into the refrigerator.
Patent KR-20030042790-A (KR)
Title: A hollow fiber membrane made of polyacrylonitrile and a preparation method thereof
Inventor: KIM EOK
IPC: B01D71/42
Filed: 2001-11-24
Abstract: PURPOSE: Provided are a polyacrylonitrile hollow fiber membrane having a pore size which is not greater than 5 μm and becomes greater from the outer surface thereof to the inner surface thereof, and a method for fabricating the same. CONSTITUTION: The method comprises the steps of (a) preparing spinning solution containing acrylonitrile based polymer, additives, solvent and 0.001-10 wt% of dimethacrylates, (b) spinning using the spinning solution of the step (a), (c) passing the fiber obtained at the step (b) through air gap, and (d) freezing and washing the fiber, wherein 1.1-5 times drawing of the fiber is performed during the freezing step.
Patent KR-20030043433-A (KR)
Title: Glass shelf mounting apparatus for refrigerator
Inventor: KIM YEONG GWON
IPC: F25D25/02
Filed: 2001-11-28
Abstract: PURPOSE: Structure for mounting a glass shelf of a refrigerator is provided to cut down the manufacturing cost by simplifying the manufacturing process. CONSTITUTION: Structure for mounting a glass shelf of a refrigerator includes a glass shelf(50) installed inside a storing space to divide the storing space, and a mounting protrusion(26) formed along the inner wall of the storing space. Articles are put on the glass shelf. The glass shelf is secured on the mounting protrusion. The sides(52,52') of the glass shelf are opposite to the side walls of an inner case(24), and the rear side(53) is secured on the mounting protrusion oppositely to a protruded plate(25). The sides and the rear side of the glass shelf are extended straight, to form edges(55,55'). An edge portion(27) of the inner case on which the edges of the glass shelf is secured is formed at a right angle. Accordingly, the glass shelf is easily inserted without interference with the inner case when the glass shelf is secured on the mounting protrusion.
Patent KR-20030043506-A (KR)
Title: Apparatus for detecting surface defects on cold rolled strip
Inventor: JUN NAM SU
IPC: G01B11/30
Filed: 2001-11-28
Abstract: PURPOSE: A surface defect detecting apparatus for a cold rolled steel is provided to automatically detect a fatal defect of the cold rolled steel, such as a prominence and depression defect causing light to be reflected into a transition area. CONSTITUTION: A surface defect detecting apparatus includes a first infrared ray LED illumination device(10) for slantingly radiating light onto an upper surface of a cold rolled steel, a first CCD camera(20) for obtaining an image from the upper surface of the cold rolled steel, a second infrared ray LED illumination device(30) for slantingly radiating light onto a lower surface of the cold rolled steel, and a second CCD camera(40) for obtaining an image from the lower surface of the cold rolled steel. A signal processing device(50) is provided to detect a prominence and depression defect from the upper and lower surfaces of the cold rolled steel. A display device(60) is provided to output the image obtained by the signal processing device(50).
Patent KR-20030043546-A (KR)
Title: Additional electrical heating device for vehicles
Inventor: BEETZ KLAUS
IPC: B60H1/22
Filed: 2001-11-27
Abstract: PURPOSE: An auxiliary electric heater for a vehicle is provided to reduce power loss by changing each heating step according to the pulse width modulation between no load and full load, and to control heating power continuously by supplying the specific frequency pulse. CONSTITUTION: An auxiliary electric heater has a controller(1) adjusting heating power, modulating current through heating units(2) by modulating pulse width, and controlling the heating units. Plural heating units form single blocks in rectangular frames(3,4,5) with adjusting integrally according to rising or falling current. Heating power of the heating unit is adjusted according to current flowing through the heating unit. The controller includes power transistors regulating current through the heating units. Current is modulated through one of the heating units, and other heating units are activated or inactivated corresponding to heating power.
Patent KR-20030046795-A (KR)
Title: High power semiconductor chip package having heat spreader that guide wall is formed
Inventor: LEE HAE GU
IPC: H01L23/34
Filed: 2001-12-06
Abstract: PURPOSE: A high power package having a guide wall formed heat spreader is provided to be capable of preventing the deviation between a stiffener ring and the heat spreader without an extra guide jig. CONSTITUTION: A circuit pattern is formed on a substrate(15). An IC(Integrated Circuit) chip(11) is mounted on the substrate(15) by a flip chip bonding process. A stiffener ring(21) is attached on the peripheral portion of the substrate(15). A heat spreader(25) is attached on the rear surface of the IC chip(11) and the stiffener ring(21), wherein the heat spreader(25) includes a guide wall(26) protruded from the heat spreader(25) to between the IC chip(11) and the stiffener ring(21). Preferably, the guide wall(26) is attached on the inner wall of the stiffener ring(21). Preferably, a rectangular ring shaped structure is used for the guide wall(26).
Patent KR-20030047043-A (KR)
Title: Method and inkjet printer for reducing maximum driving current of ink cartridge
Inventor: KIM JEONG HWAN
IPC: B41J2/05
Filed: 2001-12-07
Abstract: PURPOSE: An ink jet printer and a method for reducing maximum driving current of an ink cartridge are provided to reduce distortion of a signal caused by noise by reducing maximum driving current of an ink jet printer head. CONSTITUTION: An ink jet printer(200) includes a controller(210) and an ink cartridge(230) installed in a carriage. The ink cartridge(230) has a plurality of ink jet printer heads and a nozzle driving circuit. A plurality of ink jet nozzles for spraying ink are aligned on the ink jet printer heads and driven by the nozzle driving circuit. The controller(210) outputs a nozzle group selecting address, a nozzle selecting address, a first enable signal, a second enable signal, a clock signal and a data latch enable signal to the ink cartridge(230). The nozzle group selecting address selects a nozzle group to be driven. The nozzle group has a plurality of nozzles.
Patent KR-20030055363-A (KR)
Title: Apparatus and method for controlling synchronizing line speed of rolls with different diameter by fraying
Inventor: PARK BU HYEON
IPC: B21B37/46
Filed: 2001-12-24
Abstract: PURPOSE: An apparatus and a method for synchronization controlling realtime speed of rolls with different diameter by abrasion during rolling are provided to reduce deviation of quality such as strength in thickness direction by realtime compensating speed difference generated using current value of driving motor for upper and lower rolls. CONSTITUTION: In an apparatus for synchronization controlling realtime speed of rolls with different diameter by abrasion during rolling comprising first and second motors(1,2) for driving upper and lower rolling rolls, speed indication part(10) for indicating reference rolling speed, first and second speed control parts(4,5) for feedback controlling rotation speed of the first and second motors so that the first and second motors are rotated to the reference speed of the speed indication part, and load cell(3) for detecting rolling force applied to the second motor, the apparatus further comprises a comparison part(21) for detecting current deviation(23) of power voltage impressed to the first and second motors in the first and second speed control parts respectively; and a speed compensation processing part(20) for calculating linear speed compensation from current difference by receiving current deviation of the comparison part, rolling force of the load cell and speed detection values of the first and second motors and for correcting the reference speed of the second motor outputted from the speed indication part by which linear speeds of the upper and lower rolling rolls correspond to each other.
Patent KR-20030054457-A (KR)
Title: A device of removal rain for belt conveyer
Inventor: CHOI JEONG HUI
IPC: B65G47/38
Filed: 2001-12-26
Abstract: PURPOSE: A rainwater removing apparatus for a belt conveyor is provided to prevent clogging of a chute and breakage of a belt by removing rainwater from the belt, and to reduce waste of material by preventing fall of the transferred material. CONSTITUTION: A rainwater removing device of a belt conveyor is composed of a push roller part(30) bending unidirectionally by contacting to the belt in the upper part; a support roller part(40) bending unidirectionally by contacting the belt in the lower part; and a power unit(50) transmitting power to move the push roller part up and down. The chute is prevented from being clogged from freezing in winter by eliminating rainwater from the upper part of the belt conveyor, and loss of material is reduced by restricting fall of material. Accidents are prevented, and transport efficiency is improved by automatically removing rainwater.
Patent KR-20030056361-A (KR)
Title: Method for forming location detecting pattern of semiconductor device
Inventor: KWON GI SEONG
IPC: H01L21/66
Filed: 2001-12-28
Abstract: PURPOSE: A method for forming a position detecting pattern of a semiconductor device is provided to be capable of detecting the position of a corresponding die at a wafer after carrying out a die sawing process by inserting a sub-pattern at a blind region. CONSTITUTION: A wafer includes a plurality of dies, an image field(21), and a blind region(22). A sub-pattern(23) is inserted at the blind region(22) by changing the formation position and shape of the sub-pattern corresponding to each die for carrying out a position detecting process. Preferably, the number of the position detecting patterns exposed to an adjacent die, is capable of being controlled by differently installing the blind region of each die. Preferably, the position detecting pattern is made of at least one selected from a group consisting of a box type, bar type, round type, agraffe type and number type structure.
Patent KR-20020023912-A (KR)
Inventor: CHOI SUN JIN
IPC: H04W4/00
Filed: 2001-12-28
Abstract: PURPOSE: A method for separating one cell into several service zones and managing a resource in a wireless mobile communication system is provided to decrease interference to a neighbor cell by dividing one cell into several service zones and assigning a relatively few resource to an MS(Mobile Station) located at a surrounding zone of the cell. CONSTITUTION: If a call is generated in a system(S10), an RNC(Radio Network Controller) drives a service zone algorithm and grasps a corresponding service zone of an MS for generating the call(S12,S14). The RNC differently assigns resources to MSs located in an inter-service zone and an outer-service region(S16). The RNC assigns many resources to the MS located in the inter-service zone and assigns a relatively few resource to the MS located in the outer-service zone.
Patent KR-20010053368-A (KR)
Title: 디스크 드라이브에서 감소된 헤드 파퓰레이션 검색
IPC: G11B5/455
Filed: 1999-07-01
Abstract: 본 발명은 디스크 드라이브(100) 헤드-어셈블리(HDA)의 구조를 결정하기 위한 장치 및 방법에 관한 것이다.  HDA는 회전 가능한 디스크의 어레이(106)를 포함하며 디스크에 인접한 엑추에이터 어셈블리(110)를 포함하며, 엑추에이터는 완전히 파퓰레이팅된 구조에서 최대 수의 헤드(120) 및 파퓰레이팅 제거된 구조에서 감소된 수의 헤드를 지지한다.  각 헤드는 특정 헤드 위치에 위치 설정된다.  디스크의 각 스핀 업 동안, 서보 회로(148)는 디스크 드라이브가 완전히 파퓰레이팅된 경우 헤드를 포함하며, 디스크 드라이브가 파퓰레이팅 제거된 경우 헤드를 포함하지 않는 선택된 헤드 위치의 임피던스를 결정한다.  서보 회로는 소정의 임피던스와 관련하여 HDA의 구조를 식별하며, 결과적으로 드라이브를 초기화한다.
Patent KR-20010071055-A (KR)
Title: 다중층 침지 코팅을 위한 장치 및 방법
IPC: C25D13/22
Filed: 1999-07-28
Abstract: 본 발명은 처리될 소재에 대한 허들이 별도의 써킷 내의 탱크를 통해 갈바니 딥 코팅(2)을 위해 안내되는 다중층 코팅 방법에 관한 것이다.  탱크로부터 하류에서 허들이 변화되고, 처리될 소재가 다른 별도의 써킷 내의 탱크(4)를 통해 전기영동 코팅을 위해 다른 허들 내에서 안내된다.
Patent KR-20010106443-A (KR)
IPC: C03C3/095
Filed: 1999-06-16
Abstract: 특히 수지 기판에 대한 실장 신뢰성에 우수하고, 제조가 용이하고, 또한 고주파에서의 전기 특성에 우수한 유리 세라믹 조성물과 은 또는 구리를 주성분으로 하는 내부 전극에 의해 구성되는 적층 LC 복합 부품이다.  유리 세라믹 조성물을 45∼35중량%의 포오스테라이트 분말과 55∼65중량%의 유리 조성물 분말로 구성하고, 또한 유리 조성물 분말의 조성을 40∼5O중량%의 SiO 2 와, 30∼40중량%의 BaO와, 3∼8중량%의 Al 2 O 3 과, 8∼12중량%의 La 2 O 3 과, 3∼6중량%의 B 2 O 3 으로 구성하는 것이다.  항절 강도가 높고, 열팽창 계수가 적절하게 높고, 그린 시트를 제조하기 쉽고, 또한 950℃ 미만의 온도로 치밀하게 소결한다.
Patent KR-20010080956-A (KR)
Title: Preparation containing gypsum from flue gas desulphurisation, method for using the same and use thereof
IPC: C09J201/00
Filed: 1999-11-10
Abstract: The present invention relates to a composition, and a method of preparing and using the same. The composition contains at least one water-soluble or water-dispersible polymer or combinations thereof, and one or more filler particles that includes WDP gypsum particles. The WDP gypsum particles are obtained from waste gas-desulphurization plants and have a particles size distribution mean diameter ranging from 13 mum to 500 mum. The composition is particularly useful as a surface coating, a surfacing compound, a sealing compound, an adhesive or a molding composition.
Patent KR-20010092727-A (KR)
IPC: H04N7/16
Filed: 2000-08-31
Abstract: 본 발명은 수신가능 프로그램들에 대해 사용자에게 어드바이스하기 위한 장치 및 그 방법에 관한 것이다. 프로그램들은 프로그램 카테고리들에 대한 정보 및 사용자 프로파일에 따라 평가된다. 에이전트(agent)는 이러한 평가들에 기초하여 수신가능 프로그램들에 대한 견해들 및 어드바이스들을 제시한다. 에이전트는 인간과 같은 감정을 표현할 수 있다. 이러한 감정들은 한편으로는 프로그램 평가들을 기초로 하고, 다른 한편으로는 프로그램들의 부수적인 아이템들에 대한 정보를 기초로 한다.
Patent KR-20010089717-A (KR)
IPC: B24B49/12
Filed: 2000-03-14
Abstract: 투명창판 (31) 은, 연마패드 (21) 에 구멍이 뚫린 후에 그 구멍에 끼워넣어져 있다.     여기서, 투명창판 (31) 의 상면과 연마패드 (21) 의 가공면인 최표면과의 사이에는 간격 a 가 취해져 있다.     연마시에 웨이퍼를 지지한 연마헤드가 연마패드상에 가중기구에 의해 가중되어, 연마패드 (21) 와 투명창판 (31) 은 압축된다.     이 때, 간격 a 는 일정하며, 또한 기준치 이상의 수치가 유지되도록 되어 있다.     투명창판 (31) 의 상측 표면이 연마패드 (21) 의 상측 표면으로부터 움푹 패여있기 때문에, 드레싱할 때 투명창판 (31) 의 표면이 손상되지 않아, 연마패드의 수명이 길어진다.
Patent KR-20020003862-A (KR)
IPC: H04M3/00
Filed: 2000-02-09
Abstract: 비상 서비스로 무선 호출 연결을 용이하게 하기 위한 시스템 및 방법 (10).   본 시스템은 무선 서비스 프로바이더를 경유하여 비상 호출 센터로 호출을 시도하기 위한 메카니즘을 포함한다.     본 시스템은 무선 서비스 프로바이더에 의하여 제공된 서비스 (14) 의 유효성을 모니터하고, 서비스가 유효하거나 유효해지면 호출 (16) 을 자동으로 완료한다.     특정 실시 형태에서, 본 시스템은 비상 호출이 행해질 수 있는 무선 서비스 (18) 을 서치하기 위한 소프트웨어를 포함한다.     본 시스템은 호출이 완료될 때 까지 비상 호출 센터로 전화 번호를 반복적으로 다이얼링한다.     특정 실시 형태에서, 911을 반복적으로 다이얼링하기 위한 소프트웨어는 싸일런트-재다이얼링 (30) 소프트웨어를 포함한다.
Patent KR-20010111259-A (KR)
IPC: C22C16/00
Filed: 2000-02-14
Abstract: 본 발명은 평박막 부재를 제조하기 위한 방법에 관한 것으로, 지르코늄 기반의 합금으로 구성되는 블랭크를 형성하며, 상기 합금은 또한, 중량비로 불가피한 불순물을 제외하고, 0.8 내지 1.3 %의 니오븀, 1100 내지 1800 ppm의 산소 및 10 내지 35 ppm의 황을 함유하며, β 경화 및 열간 압연 단계를 수행하여 블랭크를 획득하며, 상기 블랭크는 중간 어닐링 열 처리와 함께 최소한 3 단계의 냉간 압연 단계를 수행한다. 중간 열 처리 중의 하나는 최소한 5 시간 동안 560 ℃ 이하의 온도에서 수행되며, 장시간의 처리에 후속하는 모든 선택적인 열 처리는 최대 15 분간 620 ℃ 이하의 온도에서 수행된다.
Patent KR-20020003559-A (KR)
IPC: A61P29/00
Filed: 2000-04-03
Abstract: LFA-1가 천연 리간드 결합 파트너에 결합하는 것을 저해하는 신규의 화합물이 개시되어 있다. 이 화합물의 용도도 제공되어 있다.
Patent KR-20020026418-A (KR)
Title: 유방암을 치료 및 진단하기 위한 조성물 및 방법
IPC: A61K35/12
Filed: 2000-04-07
Abstract: 유방암을 탐지 및 치료하기 위한 조성물 및 방법이 기재되어 있다.  제공된 화합물에는 유방 종양 조직에서 우선적으로 발현되는 뉴클레오티드 서열 뿐만 아니라 이러한 뉴클레오티드 서열에 의해 암호화된 폴리펩티드가 포함된다.  이러한 화합물을 포함하는 백신 및 약제학적 조성물이 제공되고, 이는, 예를 들면, 유방암의 예방 및 치료에 사용할 수 있다.  당해 폴리펩티드는 환자에게서 유방암을 진단하고 유방암의 진행 과정을 모니터하는데 유용한 항체를 생성하는데 사용할 수 있다.
Patent KR-20030060527-A (KR)
Title: Method for formming thin film transistor having a lightly doped drain structure and thin film transistor therby
Inventor: KANG TAE UK
IPC: H01L29/786
Filed: 2002-01-09
Abstract: PURPOSE: A method for fabricating a TFT having an LDD region and a TFT fabricated thereby are provided to simplify a fabrication process by omitting a fabrication process of a photoresist pattern used for an ion implantation process and using a gate electrode as a self-aligned mask. CONSTITUTION: A semiconductor layer(34) is formed on a substrate(30). A gate insulating layer(36) is formed on the substrate. A photoresist pattern is formed on the gate insulating layer. The first groove(40a) and the second groove(40b) are formed by etching the gate insulating layer. A gate electrode(42) is formed on the gate insulating layer between the first groove and the second groove. A heavily doped source and drain region(44a,44b) and a lightly doped source and drain region(46a,46b) are simultaneously formed by implanting impurities into the inside of the semiconductor layer.