baber/WOPTO huggingface dataset:
Patent KR-20020049188-A (KR)
Title: A multi-layer type chip directional coupler
Inventor: JUNG SEUNG GYO
IPC: H01P5/18
Filed: 2000-12-19
Abstract: PURPOSE: A multi layer type chip directional coupler is provided, which reduces an insertion loss and also improves a coupling coefficient with a simple fabrication. CONSTITUTION: The first ground pattern(117a) is formed on the first dielectric layer(101a) formed with a dielectric material. A coupling signal line(105a,105b) is formed on the second dielectric layer(101b) comprising two layers stacked on the first dielectric layer. A main signal line(103) is formed on the third dielectric layer(101c) stacked on the second dielectric layer and forms an asymmetrical structure with the coupling signal line. The second ground pattern(117b) is formed on the fourth dielectric layer(101d) stacked on the third dielectric layer. And a port is formed on sides of the four dielectric layers, and the main signal line and the coupling signal line and the first and the second ground pattern are connected to the port.
Patent KR-20020049414-A (KR)
Title: Inspection plate for a pier
Inventor: PARK HYEON CHEOL
IPC: E01D19/10
Filed: 2000-12-19
Abstract: PURPOSE: A pier testing station is provided to easily repair the pier even when partial damages are occurred by arranging the station near a lower slab of the pier to test upper slab of a bridge and/or shoe device. CONSTITUTION: The station comprises a bracket having assembling groove(11) with a fixed hole(h) and a projection(12) at lower portion and a hole(H) for fixing the pier at upper rear side of the bracket; a rectangular pipe(20) having at least one compartment walls(21); a hook cover(32) in an angle form to cover and hang end portion of the rectangular pipe(20) at lower portion of a rectangular frame(31) while at upper portion, post-coupling groove(33) consisting of angled wall(33A) and vertical wall(33B); a channel bar(30) with insertion groove(34) extended from the frame(31); angle(40) with insertion groove(44) corresponding to the groove(34); a stool(50) with step piece(51) supported on top side of the pipe(20); a pipe clamp(7) coupled to a handrail pipe(60) through a hole(71); a lower plate(82) and a post(80) having at least a pair of holes(81).
Patent KR-20020052037-A (KR)
Title: Manufacturing method of Semiconductor device
Inventor: KWON O SEONG
IPC: H01L27/105
Filed: 2000-12-23
Abstract: PURPOSE: A fabrication method of semiconductor devices is provided to prevent losses of a storage electrode by using two-step etching processes. CONSTITUTION: A storage electrode(201), an upper electrode(202) and a hard mask(203) made of TiN are sequentially formed on a substrate. The hard mask(203) is then selectively etched by using a photoresist pattern. Then, the upper electrode(202) is etched by using two-step etching processes. First, the upper electrode(202) is partially etched by using the etched hard mask as a mask. Second, the remaining hard mask and the upper electrode formed at both sides of the hard mask are simultaneously etched.
Patent KR-20020053590-A (KR)
Title: Cup use in a shock absorber
Inventor: KWON SUK
IPC: F16F9/32
Filed: 2000-12-27
Abstract: PURPOSE: A cup for a shock absorber is provided to reduce a producing cost by decreasing components, to improve workability by removing welding process and to reinforce strength by forming a reinforcing bead. CONSTITUTION: A cup in a shock absorber comprises an outer pipes(110) filled with oil by being mounted on a shock absorber(100); a piston rod(150) moving up and down by being inserted to an inner pipe; a cup(130) installed on an upper front portion of the piston rod by having a cylinder shape; a dust cover(120) mounted on a lower portion of the cup; an inserting unit(122) inserting an outer circumference of the cup buy being formed on the dust cover; a reinforcing curved unit(132) formed on an outer circumference of a cylinder shape; a body(131) arranged on an upper portion of the reinforcing curved unit; a reinforcing bead protruded on the body with a radial shape; and a combining unit(124). The reinforcing bead improves strength. Thereby, the cup of the shock absorber improves workability by removing welding process to reduce a producing cost.
Patent KR-20020056646-A (KR)
Title: semiconductor device and method for manufacturing the same
Inventor: KIM JIN GWAN
IPC: H01L21/336
Filed: 2000-12-29
Abstract: PURPOSE: A semiconductor device is provided to improve a margin in forming a very thin junction necessary for a device not greater than 0.10 micrometer and in forming a lightly doped drain(LDD), by making a gate electrode lower than a source/drain region. CONSTITUTION: Source/drain impurity regions(24) are formed in the surface of a semiconductor substrate(21) at regular intervals. A trench of a predetermined depth is formed in the semiconductor substrate between the source/drain impurity regions. The gate electrode is formed in a predetermined region inside the trench by interposing a gate insulation layer(27). A sidewall spacer(31) is formed between the gate electrode inside the trench and the source/drain impurity region. The LDD region(30) is formed in the surface of the semiconductor substrate under the sidewall spacer. A metal silicide layer(32) is formed on the source/drain impurity region and the gate electrode.
Patent KR-20010024277-A (KR)
Title: 항스트레스제 및 기능성 식품
IPC: C12N1/20
Filed: 1998-02-05
Abstract: 일상적으로 연용가능하고, 안전성 문제를 포함하지 않으며, 스트레스에 의해 생기는 정신적·신체적 증상을 경감 및 예방할 수 있는 항스트레스제 및 기능성 식품을 제공한다. 앤지오텐신 변환효소 저해활성을 갖는 트리펩티드(특히 Ile-Pro-Pro 및/또는 Val-Pro-Pro) 및/또는 그 염을 유효성분으로 함유하는 항스트레스제 및 상기 항스트레스제를 함유하는 기능성 식품.
Patent KR-20010030842-A (KR)
Title: 직선 운동 안내 장치 및 테이블 이송 장치
IPC: B23Q1/58
Filed: 1998-11-17
Abstract: 볼 체인(20)의 볼 보유 지지부(21)에 의해서 부하 볼 구름홈(5, 10) 내에서 볼을 전후로부터 보유 지지하여 그 탈락을 방지하고, 궤도 레일과 이동 블록의 대향면을 연결부에 접근시켜서 부하 볼 구름홈(5, 10)의 홈 깊이를 깊게 하여, 한층 더 부하 볼 구름홈(5, 10)의 홈 직각 방향의 단면 형상을 볼의 외주 형상에 근사시켰다.
Patent KR-20010040645-A (KR)
Title: 유동 제어를 갖는 누출 방지 컵
IPC: B65D51/16
Filed: 1999-02-04
Abstract: 음료 컵 조립체는 개방 단부를 갖는 컵과, 상기 개방 단부를 둘러싸도록 구성되고 음료 주둥이 및 통기공을 포함하고 상기 음료 주둥이 및 통기공에 인접한 또는 그에 병합된 정합 표면을 포함하는 캡과, 상기 정합 표면과 결합하도록 구성되고 각각의 최상부에 오목한 밸브면을 갖는 2개의 스택을 구비한 유동 제어 밸브를 포함한다.
Patent KR-20010024943-A (KR)
Title: 고정 코드북의 최적 벡터의 빠른 결정 방법 및 장치
IPC: G10L19/083
Filed: 1998-02-17
Abstract: 최소한 노이즈 필터된 음성 출력 벡터와 채널 노이즈 추정을 출력하기 위하여 단일 전치-처리기에서 샘플 음성(s{n})을 전치-처리(101)하는 단계, 예측 오차와 장기간 예측 이득을 출력하기 위하여 노이즈 필터된 음성 출력 벡터의 모형 파라미터를 추정(102)하는 단계, 필터 이득 및 벡터 이득에 대한 임펄스 응답 함수의 지수를 포함하는 적용된 코드북 벡터를 출력하기 위하여 예측 오차를 인코드(104 내지 120)하는 단계 및 인코드된 음성 패킷을 포맷(121)하는 단계를 포함하는 CELP 알고리즘 방법은 이론상 최적값에 가까운 시작값을 선택함으로써 다음 명령의 상기 인코딩(104 내지 120)이 상기 이득(104 내지 109)을 결정하는 단계와, 주기적으로 보정된 상관 벡터에 기초하여 추정 함수의 극한값을 연속적으로 검색함으로서 벡터를 최적화(110 내지 120)시키는 단계를 포함하게 된다. 또한, 코드북 벡터 및 상기 코드북 벡터의 이득을 결정하기 위하여 전기 신호를 처리하는 디지털 신호 처리기는 본 발명에 따른 상기 방법에 대응적으로 동작하게 된다.
Patent KR-20010034584-A (KR)
Title: 보호용 헬멧의 서스펜션 시스템
IPC: A42B3/14
Filed: 1998-09-09
Abstract: 본 발명은 중심 부분(38)과 중심 부분으로부터 반경 방향으로 연장된 복수개의 스트랩 부분(30A 내지 30D)을 갖는 크라운형 지지 조립체(29)를 포함하는 헬멧용 서스펜션 시스템(16)에 관한 것이다.  서스펜션 시스템(16)은 헤드 밴드(32) 및 복수개의 커넥터(34)를 포함하며, 복수개의 커넥터들 중 적어도 하나의 커넥터는 서스펜션 시스템(16)을 헬멧(10)에 부착시키는 앵커 부분(40)과, 앵커 부분(40)으로부터 연장되어 복수개의 스트랩 부분(30A 내지 30D)들 중 하나의 스트랩 부분에 부착된 제1 지지 부재(42)와, 제1 지지 부재(42)로부터 이격되고 앵커 부분(40)으로부터 연장되어 헤드 밴드(32)에 부착된 제2 지지 부재(44)와, 제1 및 제2 지지 부재(42, 44)들 중 하나의 지지 부재로부터 제1 및 제2 지지 부재(42, 44)들 중 다른 지지 부재를 향해 연장된 스페이싱 부재(46)를 포함한다.  커넥터(34)는 단일편일 수도 있고, 성형편일 수도 있다.  또한, 커넥터(34)는 제1 및 제2 지지 부재들 중 하나의 지지 부재로부터 제1 및 제2 지지 부재들 중 다른 지지 부재를 향해 연장된 적어도 하나 이상의 스페이싱 부재(46)를 포함할 수도 있다.
Patent KR-20010042822-A (KR)
Title: 접착부재, 반도체 장치 및 그 제조방법, 회로 기판 및전자기기
IPC: H01L23/31
Filed: 2000-02-09
Abstract: 반도체 장치(1)는, 반도체 칩(10)과, 배선 패턴(22)이 형성된 기판(2O)과, 반도체 칩(1O)과 배선 패턴(22)을 전기적으로 접속하는 접착부재(3O)를 포함하며, 접착부재(3O)는, 제 1 수지를 기재로하여 반도체 칩(10)측에 배치되는 제 1 층(32)과, 제 2 수지를 기재로하여 기판(2O)측에 배치되는 제 2 층(34)과의 2층 구조를 이루고, 제 1 수지와 제 2 수지가, 열팽창 계수 등으로 다른 물성을 갖는다.
Patent KR-20010052372-A (KR)
Title: 성능 향상을 위한 표면 경화된 스웨이지 장착부
IPC: G11B5/48
Filed: 1999-05-17
Abstract: 스웨이지 장착부는 제1 측면 및 제2 측면을 갖는 기부판을 포함한다.  기부판의 제1 측면으로부터 허브가 연장되고, 허브는 관통 구멍을 갖는다.  기부판의 제2 측면은 액츄에이터 아암 또는 하중 비임 중 하나 상에 장착되어, 허브의 구멍이 액츄에이터 아암 또는 하중 비임 내에 배치된 스웨이지 개구와 정렬되도록 한다.  허브는 액츄에이터 아암 또는 하중 비임 중 다른 하나의 스웨이지 개구에 삽입됨으로써, 이들 사이에 간섭 끼워맞춤을 형성한다.  스웨이지 장착부는 가스 탄화, 비드 블라스팅 또는 텀블링에 의해 표면 경화됨으로써, 간섭 끼워맞춤의 토오크 보유 값을 증가시킨다.
Patent KR-20010043918-A (KR)
Title: 조성물, 막의 제조방법, 및 기능 소자와 이의 제조방법
IPC: C09D11/00
Filed: 2000-03-29
Abstract: 본 발명은 잉크젯 프린팅법에 채택할 수 있고, 기능 재료로서 비극성 또는 극성이 약한 재료를 사용할 수 있고, 토출시의 눈 막힘을 방지하여 안정한 토출을 달성하고, 토출 중의 내용물의 석출과 막 형성시의 상 분리를 방지하는 조성물, 이를 사용하여 형성된 균일하고도 균질한 기능막과 이의 제작법 및 유기 EL 소자 등의 표시 장치와 이의 제조방법이다.  본 발명의 조성물은 하나 이상의 치환기를 갖고 당해 치환기의 총 탄소수가 3 이상인 벤젠 유도체의 적어도 1종을 포함하는 용매와 기능 재료로 이루어지는 구성으로 한 것이다.  본 발명의 기능막은 상기 조성물을 사용하여 형성된 것이다.  본 발명의 표시 장치는 두 개의 전극 사이에 상기 조성물을 사용하여 형성한 발광 재료층을 구비하는 것이다.  상기 표시 장치는 유기 EL 소자 등이다.
Patent KR-20020059460-A (KR)
Title: Volume automatic control apparatus of portable digital audio appliance using earphone
Inventor: PARK JIN GYU
IPC: H03G3/30
Filed: 2001-01-06
Abstract: PURPOSE: An apparatus for automatically controlling a volume of a portable digital audio device by using an earphone is provided to give a convenience to a user by automatically controlling the volume of the portable digital audio device in response to an external noise. CONSTITUTION: An apparatus(100) for automatically controlling a volume of a portable and recordable digital audio device by using an earphone includes a mike(110) inputted thereto an external sound and a surrounding noise signal, a first amplifier(120) for amplifying an analog audio signal through the mike(110), an A/D converter(130) for converting the analog audio signal inputted from the first amplifier(120) into a digital signal, a D/A converter(140) for converting a digital signal stored into an internal memory(181) into an analog audio signal, a second amplifier(150) for amplifying the analog audio signal output from D/A converter(140) and for being controlled q gain thereof by a user's control, a digital gain control amplifier(160) for amplifying the analog audio signal from the second amplifier(150) in response to an external control signal, an earphone(170) for outputting the analog audio signal from the digital gain control amplifier(160) and an audio processor(180), The audio processor(180) stores the digital audio signal inputted from the A/D converter(130) and adjusts the volume of the audio signal output and controlled by the digital gain control amplifier(160) based on the size of the surrounding noise signal received periodically during a predetermined time period.
Patent KR-20020060820-A (KR)
Title: Delivery time shortened method of Shopping Mall
Inventor: KANG PAN GUK
Filed: 2001-01-12
Abstract: PURPOSE: A method for operating a shopping mall is provided to allow a buyer to receive detailed information about a desired product from an affiliated agent store, and to enable the affiliated agent store located at the shortest distance from the buyer to deliver the product. CONSTITUTION: When buyer information is inputted(S101), an Internet terminal(10) of the buyer is connected to a web site(40) of the affiliated agent store located at the shortest distance from the buyer(S102). The Internet terminal(10) can be connected to a telephone of a web site operator(50) of the affiliated agent store in order to make direct communication(S103). The information about various products for sale is supplied to the Internet terminal(10) of the buyer(S104). A buy request message is sent to the web site operator(50) of the affiliated agent store(S105). After checking the buy request message, the web site operator(50) immediately delivers a selected product to the buyer(S106).
Patent KR-20020062514-A (KR)
Inventor: KIM SEON JANG
IPC: B09B3/00
Filed: 2001-01-22
Abstract: PURPOSE: A treatment and recycling method of food waste and equipment thereof is provided to treat food waste completely, so that it can be used as energy source. The acid fermented organic acid, the finally treated product, can be used as a carbon source that is necessary to treat nitrogen and phosphorus contained sewage and can increase methane gas production owing to the high content of organic matter when it is fed to digestion tank of wastewater treatment plant. CONSTITUTION: The method comprises the following steps: (i) tear the collected food waste bags those are transferred from feed hopper, screen coarse impurities, crush to screen; (ii) magnetic separation of magnetic metals contained in the crushed food waste; (iii) centrifugal separation of non-ferrous heavy materials contained in the separated food waste by high speed rotation; (iv) secondarily crush to suitable particle size for hydrolysis of food waste and increasing acid fermentation efficiency; (v) remove fine vinyl particles; (vi) conduct a cyclone process to remove fine heavy material contained in food waste treated; and (vii) conduct acid fermentation to hydrolyze and acid ferment the food waste.
Patent KR-20010078103-A (KR)
Title: Electronic system for monitoring a fifth wheel hitch
Inventor: DUPAY STEVEN C
IPC: B60D1/28
Filed: 2001-01-27
Abstract: PURPOSE: An electronic system is provided to determine whether or not a trailer is appropriately connected to a trailer hitch device. CONSTITUTION: An electronic system monitors a trailer hitch device(20) provided with a hitch plate(26), in which a throat part receiving a king pin of the trailer is formed, and a locking mechanism(28) locking the king pin inside the throat part so as to determine whether the hitch device is appropriately connected to the trailer or not. The electronic system is constructed of a trailer sensor detecting the position of the trailer to the trailer hitch device, a lock sensor(36) detecting the position of the locking mechanism, a sequence connected to the trailer sensor and the lock sensor for detecting the respective positions of the trailer and the locking mechanism by the trailer sensor and the lock sensor, and a control circuit taking the lapse of time between detection their positions into consideration so as to determine whether appropriate connection is made or not.
Patent KR-20020066501-A (KR)
Title: Business method for intermediating job offer and job hunter using network and computer readable medium having stored thereon computer executable instruction for performing the method
Inventor: HWANG SUN KIL
IPC: G06Q30/06
Filed: 2001-02-12
Abstract: PURPOSE: A method for the job link service is provided for a company to gain easily the reliable data about a competent person by evaluating and analyzing the data about the job ability of many applicants through a headhunter. CONSTITUTION: A service provider(10) offers the applicant(20) to a job ability evaluation sheet and makes a DB from the input data of the evaluation sheet. The service provider transfers the evaluation sheet to the headhunter(40) for the analysis of the data. The headhunter analyzes the job ability of the applicant and transfers the result, such as an evaluation analysis sheet and evaluation authentication sheet, to the service provider. The service provider processes and stores both sheets to the DB. A company(30) searches and pick up the fittest applicant to a position through the applicant evaluation data offered by the service provider.
Patent KR-20020066854-A (KR)
Title: Apparatus for Displaying Ignition status of Burner of Gas Oven Range
Inventor: LEE SEOK JAE
IPC: F24C7/08
Filed: 2001-02-14
Abstract: PURPOSE: A burner ignition indicating apparatus for a gas oven range is provided to allow a user to identify the burner ignition state of a gas oven range during cooking. CONSTITUTION: A burner ignition indicating apparatus for a gas oven range is composed of a flame sensor(100) for sensing whether flame exists on and outputting the electric signal according to the sensed result, an indicating unit(400), an indicating unit driver(300) for driving the indicating unit, and a microcomputer(200) for determining whether the flame of respective burners exists on according to the electric signal from the flame sensor and controlling the indicating unit to allow the indication corresponding to the determined result. Thus, a user identifies the burner ignition state of the gas oven range during cooking.
Patent KR-20020067074-A (KR)
Title: method of union a secret call function with wireless ear-microphone
Inventor: NA YEONG MIN
IPC: H04R3/00
Filed: 2001-02-15
Abstract: PURPOSE: A method for combining a wireless ear microphone function with a secret call function is provided to perform the secret call function by installing a speaker and a secret call button in a main body and using the secret call button and the wireless ear microphone. CONSTITUTION: A cellular phone is loaded in a main body and an earphone is connected with an earphone jack of the cellular phone. The cellular phone is set up as a standby state(200). The cellular phone generates a bell sound if it receives a bell signal(210). A call function is performed by pushing a call button of the main body(220). A user speaks over the telephone by using a wireless microphone and a speaker of the main body(250). The speaker of the main body is muted if the user wants a secret call function(260). The user listens to a voice of the opposite party by using a wireless ear microphone(280).
Patent KR-20020071041-A (KR)
Title: The burning method by Rapid Temperature Process for the burning of the Flat Color Display and the Rapid Temperature Process system for the same
Inventor: SUNG JUN GYEONG
IPC: G02F1/13
Filed: 2001-03-02
Abstract: PURPOSE: A method and a device for quick heat processing for plasticizing a coating film of a flat color display device are provided to minimize the equipment and reduce the time required for the plasticizing of a coated film, thereby preventing the generation of cracks due to the long time plasticizing. CONSTITUTION: A quick heat processing device for plasticizing a coating film of a flat color display device includes an FCD supply(A) for supplying an FCD(Flat Color Display;50) formed with a coated film as secured in a jig(51), a preheating part(B) for preheating the coated film while moving the FCD vertically, an RTP(Real-time Transport Protocol) plasticizing part(C) for applying high temperature heat to the coated film while moving the FCD vertically to plasticize the coated film, an extracting part(D) for extracting the FCD of which the coated film is completely plasticized out of the RTP plasticizing part, doors(52) for defining the above parts respectively, cylinders(53) for moving the door vertically to open or close the respective parts, and stoppers(59) mounted in the respective parts movably in the vertical direction for limiting the movement of the jig while lowering.
Patent KR-20020071341-A (KR)
Title: A color cathode ray tube
Inventor: HA GWANG HEON
IPC: H01J29/02
Filed: 2001-03-06
Abstract: PURPOSE: A color CRT is provided to reduce deformation of a supporting plate by enlarging the area of a frame fixing unit of the supporting plate fixed to a supporting frame. CONSTITUTION: A phosphor is deposited on an inside of a panel. A supporting frame to which a shadow mask is fixed, is fixed to the panel. A supporting plate(140) is fixed to the supporting frame. A spring(130) for fixing the supporting frame to the inside of the panel is fixed to the supporting plate. A pair of frame fixing units(142) are formed on the supporting plate and are fixed to the supporting frame. A spring fixing unit(144) is formed between the frame fixing units and is spaced from the supporting frame with a predetermined gap.
Patent KR-20010091958-A (KR)
Title: Liquid crystal information display apparatus
Inventor: NAKAYAMA JUNICHIRO
IPC: H04N5/66
Filed: 2001-03-10
Abstract: PURPOSE: To provide a liquid crystal information display device capable of obtaining proper luminance in a liquid crystal panel ad also capable of prolonging the life of a back light unit while reducing power consumption of it. CONSTITUTION: The liquid crystal information display device provided with a liquid crystal panel unit 1 and a back light unit 2 is provided with an illuminometer 4 measuring the peripheral luminance of the device and, also, has a means which, when the peripheral luminance is defined as I (lx), calculates the luminance Bp of the panel (cd/m2) using equations, Bp=axln(I)+b, 10<=a<=40, 50<=b<=250.
Patent KR-20010044668-A (KR)
Inventor: SUNG GAP JE
IPC: F04B49/00
Filed: 2001-03-15
Abstract: PURPOSE: An automatic control system for air compressor is provided to reduce motor load, parts count and cost by eliminating the necessity of using a delay timer, back flow prevention valve and a three-way solenoid valve. CONSTITUTION: A pilot valve(18) sets the pressure of an air tank(3), and a pressure switch operates so as to shut down the operation of a motor(5) by the pressure induced from the pilot valve. The pressure is guided to a compression shutdown line through a nibble, thus operating a piston and preventing a suction valve from operating. The outlet of the nibble is controlled to have an extremely limited diameter so as to allow the compression shutdown time to be delayed than the operating time of the motor. A pressure switch(12) is directly connected to the pilot valve and assembled to be symmetric with the nibble. The pressure switch has a pressure lower than that of the pilot valve. The nibble has a small outlet port for delaying the migration of the compressed air and the operation of the piston assembled to a head of an air compression pump(2). When the air compression pump reaches a preset pressure of the pressure switch, power to the motor is cut off and the motor stops operation.
Patent KR-20020073914-A (KR)
Title: Method for repair service using internet of mobile system
Inventor: OH SUK MIN
Filed: 2001-03-16
Abstract: PURPOSE: A method for a trouble repairing service of a mobile communication terminal using the Internet is provided to repair a mobile communication terminal rapidly by collecting the mobile communication terminal through the Internet in the case that a performance of the communication terminal is degraded or a malfunction is generated. CONSTITUTION: If a performance of the communication terminal of a user is degraded or a malfunction is generated, the user connects to a web server supplied in an Internet repairing and delivery company through a user computer. At this time, a personal information input window capable of inputting personal information is output on a screen of the user computer. If the personal information input window is output, the user records a destination address of the mobile communication terminal, a resident registration number, an age, a name, a connecting place, etc. in the window and clicks an icon for transmitting the data to the repairing and delivery company. The company visits at a residence place of the user through a delivery service, collects the terminal, and repairs the terminal. The repaired terminal is delivered to the user.
Patent KR-20020040530-A (KR)
Title: Nonvolatile semiconductor memory device with reliable verify operation
Inventor: ICHIKAWA TAKAAKI
IPC: G11C16/34
Filed: 2001-03-23
Abstract: PURPOSE: To provide an semiconductor memory device which is capable of freely adjusting the tilt of the Vg-Id characteristic curve and adjusting it to the memory cell. CONSTITUTION: The nonvolatile semiconductor memory device of this invention comprises the reference circuit which is composed of a plurality of reference cell transistors and signal line which are interconnected and applied with same gate voltage, reference circuit passing through the total current of each current flowing reference cell transistors corresponding to each gate voltage to the signal line, the memory cell arrays that includes memory cells which store data, comparative circuit which compares the current passing the signal line and the current that corresponds to memory cells of the memory arrays and the threshold voltage setting circuit that adjust some threshold voltage of some among a plurality of reference cell transistors so that the shape of the voltage- current characteristic between the gate voltage and the current that flows through the signal line approaches to the shape of the voltage-current characteristics of the memory cell.