baber/WOPTO huggingface dataset:
Patent KR-20020057127-A (KR)
Title: Time control method in microwave oven
Inventor: SIM MI HWA
IPC: F24C7/08
Filed: 2000-12-30
Abstract: PURPOSE: A method for calculating cooking time is provided for minimize heating deviation when cooking using a humidity sensor. CONSTITUTION: A plurality of sensing values of a humidity sensor are set. Time difference between times of detection of the sensing values are divided, and a constant value(K) applied to each division is set. The times of the detection of the sensing values are counted. And a constant value by the time difference between the counted times is set. The total cooking time is calculated by applying the selected constant value.
Patent KR-20010022251-A (KR)
Title: Ｄｃ 전압 공급 장치
IPC: H02M3/338
Filed: 1998-07-24
Abstract: - 반도체 스위칭 엘리멘트(T)의 제어 입력(G)에 인가된 일련의 구동 펄스(AI)를 기초로 변압기의 1차측(L1) 공급 전압(V)을 클록킹하는 반도체 스위칭 엘리멘트(T) 
     - 측정 장치(MA)에서 만들어지며 개별 구동 펄스(AI)의 지속 시간을 제어하는 아날로그 로드-종속 제어 신호(RS)가 인가되는 제 1 입력 터미널(ASE1)과 구동 펄스(AI)의 턴온 순간을 정의하는 시동 신호(SS)가 인가되는 제 2 입력 터미널(ASE2)를 가진 구동 펄스(AI)를 만드는 구동 회로(AS) 
     - 구동 회로(AS)의 제 2 입력 터미널(ASE2)에 접속된 출력 터미널(IGA)을 가지며 제어 신호(RS)를 기초로 펄스화된 시동 신호(SS)를 공급하는 펄스 발생기(IG)를 포함하는데, 상기 제어 신호(RS)는 상기 펄스 발생기(IG)의 제 1 입력 터미널(IGE1)에 인가되며, 시동 신호(SS)의 개별 펄스의 시간 간격은 제어 신호(RS)에 의해 영향을 받으며, 출력 터미널(AK)에 접속되는 로드(R)에 DC 전압을 공급하는 장치
Patent KR-20010031069-A (KR)
Title: 개선된 밀봉성과 광학 특성 및 감소된 용해도를 갖는결정성 프로필렌 공중합체 조성물
IPC: C08F210/16
Filed: 1999-07-23
Abstract: 2 내지 15 g/10 분의 MFR L 값을 가지며, 하기 (중량%) 를 포함하는 결정성 프로필렌 공중합체 조성물: 
     A) 하나 이상의 프로필렌 공중합체 20 내지 80 %; 
     B) A) 와 상이한 함량의 공단량체를 갖는 하나 이상의 프로필렌 공중합체 20 내지 80 %; 
     {상기 MFR L 값 (MFR L (2)) 은 상기 비율로 동일한 성분 A) 및 B) 를 함유하나, 0.3 내지 5 g/10 분의 MFR L 값 (MFR L (1)) 을 갖는 전구체 조성물을 2 내지 20 의 MFR L (2)/MFR L (1) 비로 분해함으로써 수득된다}.
Patent KR-20010033914-A (KR)
IPC: C07C4/04
Filed: 1998-12-29
Abstract: A refrigeration system for an ethylene plant uses a low pressure demethanizer and a binary refrigerant comprising a mixture of methane and ethylene or methane and ethane. The refrigeration composition may be constant throughout the system or separators may be used to divide the refrigerant into a methane-rich binary refrigerant and an ethylene- or ethane-rich binary refrigerant.
Patent KR-20010040518-A (KR)
Title: 컨테이너
IPC: H01L21/673
Filed: 1998-12-02
Abstract: 혐먼지성 물품을 수납하여 운반하기 위한 컨테이너의 뚜껑에 마련된 위치결정구멍 및 키홀에 대하여, 개방기구의 위치결정핀 및 키를 삽입하여, 뚜껑의 개폐를 행할 때, 위치결정구멍의 내부의 상면에 테이퍼면을 형성하고, 키홀에 플로팅기구를 구비함으로써, 삽입을 용이하게 하고, 다시 뚜껑을 닫을 때 잘 닫을 수 있는 컨테이너.
Patent KR-20010042135-A (KR)
Title: 유기 폴리이소시아네이트의 안정화
IPC: C07C263/18
Filed: 1999-03-15
Abstract: 본 발명은 유기 폴리이소시아네이트를 안정화시키기 위한 3,5-디-tert-부틸-4-하이드록시페닐프로피온산 에스테르의 용도에 관한 것이다.
Patent KR-20010042507-A (KR)
Title: 충전제를 함유하는 미분 고무, 이의 제조방법 및 이의 용도
IPC: C08J3/16
Filed: 1999-03-20
Abstract: 본 발명은 기계적 하중하에서도 유동성을 유지하는 충전제를 함유하는 미분 고무, 고무 분말이 2개의 침전 단계 내에서 수득되는 이의 제조방법 및 가황성 고무 혼합물을 제조하기 위한 이의 용도에 관한 것이다.
Patent KR-20010043289-A (KR)
Title: 비활성화 팽창 차단 수단을 갖는 웹
IPC: D04H1/4291
Filed: 1999-05-05
Abstract: 본 발명은 특히 연속 공급되는 웹 물질로부터 제조되는 제품을 대량으로 제조하는데 사용할 수 있는 웹 물질에 관한 것이다.  특히, 본 발명은 웹 물질의 팽창성이 외부적으로 활성된 후, 소정의 신장률만큼 팽창가능한 웹 물질을 교시한다.  상기 기능을 제공하기 위해, 웹 물질은 하나 이상의 종방향 팽창 수단 및 하나 이상의 비활성화 팽창 차단 수단을 포함한다.  본 발명의 또다른 목적은 종방향 팽창 수단 및 비활성화 팽창 차단 수단을 상기 웹 물질 내에 혼입하는 단계를 포함하는 웹 물질의 제조방법이다.
Patent KR-20010043887-A (KR)
Title: 유리 예비성형품의 제조방법
IPC: C03B37/012
Filed: 1999-04-14
Abstract: 연장되고 압밀된 유리 예비성형품은 그 안에 구경(10)을 갖고 있고, 가열되고 연신된다. 상기 예비성형품은 다시 가열되고 연신된다. 상기 구경은 진공화된다.
Patent KR-20010053223-A (KR)
Title: 수성 현탁액 형태의 살충제 제제
IPC: A01N25/04
Filed: 1999-06-14
Abstract: 하나 또는 그 이상의 살충 활성 성분을 함유하며 20℃에서 100ppm 내지 1000ppm(양 경계값 포함)의 수용성을 가지는 입자들이 선택적으로 리그닌 술폰산염과 조합되는 응축 아릴술폰산염을 함유하는 수성 매질에 분산되어 있는, 수성 현탁액 형태의 살충제 제제. 상기 제제는 살충 활성 성분 입자들의 성장을 억제하는 제제 안정성을 가질 수 있는 반면, 과립형 살충제에 필적하는 생물학적 효과를 발휘한다. 나아가 상기 제제는 과립형 살충제에 대등한 또는 이보다 낮은 화학적 상해 빈도를 나타낸다.
Patent KR-20010070404-A (KR)
Inventor: SAKURAI TOYONOBU
IPC: F16K11/074
Filed: 2001-01-04
Abstract: PURPOSE: To provide a pilot type two-port valve capable of smoothening the movement of a shaft having a valve element mounted thereon and minimizing the wear of a sealant or piston packing, having an excellent sealing property and an assembling and disassembling property, and facilitating the supply of a pressure fluid to a pressure working chamber. CONSTITUTION: In this pilot type two-port valve, a piston 18 connected to the valve element 25 through the shaft 15 is driven by the pilot fluid pressure supplied to and discharged from the pressure working chamber 17b on one side thereof to open and close a valve seat 8 by the valve element 25. The shaft 15 is screwed to the piston 18, the sealant 61 is interposed between them, and a retaining ring 64 for preventing the separation of the screwed piston is engaged with the shaft. The shaft 15 is supported through bearing 24 and 50 at both ends of the piston.
Patent KR-20020059556-A (KR)
Title: Method for replacing function state indicators in mobile wireless terminal
Inventor: HWANG YEONG GIL
IPC: H04B1/40
Filed: 2001-01-08
Abstract: PURPOSE: A method for replacing a function state indicator in a mobile terminal is provided to supply various function state indicator icons by storing function state indicators in a memory or downloading them from an external server. CONSTITUTION: A control part checks whether a function state indicator function selection key is inputted(100). If the function state indicator function selection key is inputted, the control part displays function state indicator locations by functions on the LCD screen of a display part(104). If a user inputs a function state selection key for a Function_BAND function group in order to change a band function state indicator icon(106), the control part displays the icons of the Function_BAND function group on the LCD screen(110). If the user selects a desired icon among the displayed icons(112), the control part stores and displays the selected function state indicator(114).
Patent KR-20020067771-A (KR)
Title: Optical finger print input device and method for controlling said device
Inventor: AHN JONG U
IPC: G06K9/00
Filed: 2001-02-19
Abstract: PURPOSE: A device for the optical fingerprint input and a control method thereof are provided to obtain exact image by collecting only the light reflected on the fingerprint of a finger incident to a camera. CONSTITUTION: The device includes a prism(10), a light source(40) installed to emit lights toward the corner vertical to the side contacting with a fingerprint, a lens(20) installed on one surface of the prism spacing apart a specific distance to form an image, a video input unit(50) to convert the image into digital video data, a computer terminal(60) to store the video data and output a control signal for moving the light source depending on the contrast of the video data, and a light source moving unit to move the light source on a horizontal axis and a vertical axis by the control signal output from the computer terminal. The corner opposite to the light source is closer to the lens than other surfaces of the prism. The light source moving unit consists of a motor control unit(70) and a transfer unit(80).
Patent KR-20010085567-A (KR)
Inventor: BARCLAY GEORGE G
IPC: H01L21/027
Filed: 2001-02-24
Abstract: PURPOSE: Provided are spirocyclic olefin polymers, methods of preparing spirocyclic olefin polymers, photoresist compositions including spirocyclic olefin resin binders and methods of forming relief images using such photoresist compositions. CONSTITUTION: The spirocyclic olefin monomer is represented by formula(I), wherein A = O, S, CH2, and NR1; R1 = phenyl, substituted phenyl, benzyl, substituted benzyl, (C1-C8)alkyl and substituted (C1-C8)alkyl; G = C(Z'), O, S, and NR2; R2 = (C1-C8)alkyl and substituted (C1-C8)alkyl; E and W are independently selected from C(Z'), O, NR2 and a chemical bond; Z' = O or S; n = 0 to 3; m = 0 to 2; m' = 0 to 2; 1 = 0 to 5; and p = 0 to 5; provided that 1 + p = 3 to 5; provided that when A = O, S or NR1, n = 1; wherein T and L are taken together and selected from a double bond or a 5 to 8-membered unsaturated ring.
Patent KR-20020069754-A (KR)
Title: Analog and Digital Audio brocasting Composition Receiver
Inventor: KIM JONG BU
IPC: H04N5/46
Filed: 2001-02-27
Abstract: PURPOSE: An analog/digital broadcasting complex receiver is provided to receive the analog and digital broadcastings by a single receiver when the analog and digital broadcastings are coexisting in a transition period from the analog broadcasting to the digital broadcasting. CONSTITUTION: An analog/digital broadcasting complex receiver includes an antenna for receiving external broadcasting signals, a digital broadcasting signal processing part(12) for processing digital broadcasting signal received via the antenna, an analog signal processing part(13) for processing analog broadcasting signals received via the antenna, an output part(17) for outputting the analog or digital signal processed broadcasting signals, a display part(16) for displaying operation states of respective component parts and the broadcasting receiving states, and a control part(11) for determining whether the received broadcasting signal is analog or digital to set a receiving mode, and controlling the respective component parts to receive and output the broadcasting in response to the receiving mode.
Patent KR-20020072604-A (KR)
Title: Vinyl house
Inventor: BAN CHAE YOEN
IPC: A01G9/24
Filed: 2001-03-12
Abstract: PURPOSE: A vinyl house having an openable and closeable ceiling portion to control the inner temperature thereof as occasion demands and a sprinkler to prevent an accumulation of snow or lower the inner temperature thereof during summer season is provided which can be stably used in raising crops. CONSTITUTION: This agricultural vinyl house comprises: a first rafter being driven into the ground on its one side end and having a straight portion(34) of a specified length on its another side end; a second rafter(36) having the same shape as the first rafter and a straight portion(38) of a specified length on its another side end to be constructed crossly in the form of an X shape with that of the first rafter; a cover rafter(40) constructed by a clamp(54) on the side end of the straight portion of the first and second rafter; a support rod(42,44) constructed at the center portion and on both sides of the cover rafter; a spray tube(48) connected to a water pipe(62); a pillar(50) constructed through an X crossing portion of the straight portion of the first and second rafter; and a vinyl cover winding rod(58) for winding and lifting the vinyl cover(52).
Patent KR-20020073996-A (KR)
Inventor: BAE MIN CHEOL
IPC: H01R33/76
Filed: 2001-03-19
Abstract: PURPOSE: A base cap for a color CRT is provided to prevent dielectric breakdown between the lead pin where a high voltage is applied and the lead pin where a low voltage is applied. CONSTITUTION: A base cap(30) for a color CRT, comprises a cylindrical housing(31); a flange portion(32) extended in a radial direction from an end of the housing, and which has a plurality of through holes(41,42,43) for insertion of lead pins(16) fixed to the stem of an electron gun; and a dielectric breakdown prevention unit arranged at the rear surface of the flange portion corresponding to the stem, and which prevents dielectric breakdown between lead pins. The dielectric breakdown prevention unit is constituted by a protrusion(51) formed at the rear surface of the flange portion corresponding to the distance formed between lead pins.
Patent KR-20020076750-A (KR)
Title: Payment method and system to input payment information to mobile phone
Inventor: KIM CHEOL GI
IPC: G06Q20/00
Filed: 2001-03-30
Abstract: PURPOSE: A paying method by storing financial information in a mobile communication terminal and a system thereof are provided to enhance a security of a financial transaction by coding financial information of a client and storing the coded information in a mobile communication terminal using a managing number(password) of an electronic wallet designated by a user as a key of an encryption algorithm. CONSTITUTION: A card applicant possesses a personal mobile communication terminal(10) having an optical transceiver as a mobile phone or a PDA. A financial institution(40) codes financial information including a card number, inputs the information in the mobile communication terminal(10), and issues a card. A POS terminal(20) receives the financial information from the mobile communication terminal(10) and performs a payment. A VAN company(30) receives an approval request of the POS terminal(20), transmits the request to a corresponding financial institution(40), and transmits the approval result to the POS terminal(20).
Patent KR-20020076787-A (KR)
Title: A method and apparatus for displaying fuel capacity
Inventor: KIM GYEONG NAM
IPC: G01G23/36
Filed: 2001-03-30
Abstract: PURPOSE: A fuel quantity display method and apparatus is provided to simplify configuration and allow shape of fuel tank to be easily changed by changing data value stored in the lookup table of the memory, while preventing abrasion of the fuel quantity display apparatus. CONSTITUTION: A fuel quantity display method comprises a first step of inputting signals of a sensor(20) in accordance with the amount of fuel stored in a fuel tank(10); a second step of determining the amount of fuel stored in the fuel tank by the signal input in the first step; and a third step of displaying amount of fuel by generating and outputting a fuel amount display signal in accordance with the amount of fuel determined in the second step. A fuel quantity display apparatus comprises the fuel tank; a permanent magnet(12) rotating by the amount of fuel stored in the fuel tank; the sensor for outputting displacement of level caused due to the rotation of the permanent magnet; a micro computer(21) for determining amount of fuel stored in the fuel tank and controlling display of amount of fuel in accordance with the signal output from the sensor; an amplifier(22) for amplifying the fuel amount display signal output from the micro computer; and a fuel amount display(17) for displaying amount of fuel stored in the fuel tank in accordance with the signal output from the amplifier.
Patent KR-20020076933-A (KR)
Title: METHOD FOR MANUFACTURING OF Thin Film Transistor
Inventor: LEE GYEONG HA
IPC: H01L29/786
Filed: 2001-03-31
Abstract: PURPOSE: A fabrication method of a thin film transistor is provided to reduce manufacturing costs by simplifying manufacturing processes using a halftone mask. CONSTITUTION: A polysilicon layer(31) as an active layer, a gate oxide and a conductive layer are sequentially formed on an insulating substrate. A halftone mask having 3-tone shape is formed on the conductive layer. The polysilicon layer, the gate oxide and the conductive layer are selectively removed by using the first layer of the 3-tone mask. The gate oxide and the conductive layer are selectively removed to expose a desired portion of the polysilicon layer(31) by using the second layer of the 3-tone mask, and then the conductive layer is selectively etched to expose a desired portion of the gate oxide by using the third layer of 3-tone mask, thereby forming a gate electrode. Source and drain regions(36) having an off-set region(35) are formed in the polysilicon layer. After forming an interlayer dielectric(37) having a contact hole on the resultant structure, source and drain electrodes(39) are formed to be connected with the source and drain regions via the contact hole.
Patent KR-20010091054-A (KR)
Title: Chilling Device
Inventor: KOBAYASHI MASAHIRO
IPC: F24F13/28
Filed: 2001-04-06
Abstract: PURPOSE: To provide a cooling device to perform sufficient regulation of a pressure of a sock duct and improve cooling efficiency. CONSTITUTION: A filter 7, a cooler 8, a scirocco fan 9, a high pressure chamber 10, and a sock duct 12 with a closed other end made of cloth are disposed, in the order, in a flow direction of an air flow generated by the scirocco fan 9.
Patent KR-20020078573-A (KR)
Title: Method for preparing of sesame oil
Inventor: SHIN EUN CHI
IPC: A23D9/00
Filed: 2001-04-06
Abstract: PURPOSE: Provided is a method for manufacturing sesame oil by indirect heating method to prevent sesame seeds from being burnt, thereby producing high quality of sesame oil removed from a bitter taste, maintaining savory flavor and taste peculiar to sesame seeds and having excellent preservability. CONSTITUTION: The method for manufacturing sesame oil comprises the steps of: selecting sesame seeds then roasting them at 35-45 deg.C for 10-15 minuets, 65-75 deg.C for 6-10 minutes then 85-95 deg.C for 3-8 minutes sequentially by indirect heating method; extracting oil therefrom by pressing; and filtering the oil by precipitating it naturally at 32-38 deg. C for 6-10 days.
Patent KR-20010098794-A (KR)
Inventor: PARK SANG WOOK
Filed: 2001-04-20
Abstract: 본 발명은 건설관련 분야의 발주/수주시스템 및 그 방법에 관한 것으로서, 그 시스템의 구성은 다수의 사용자 인터페이스와, 상기 사용자 인터페이스와 인터넷망으로 연결되고 장치전반을 제어하는 운영자 서버와, 상기 운영자서버에 의해 제어되어 상기 다수의 사용자 인터페이스로부터의 입력신호처리를 위한 발주/수주시스템 서버와, 상기 사용자 인터페이스를 발주/수주처리과정중에 발생된 정보를 저장하는 데이터 저장부와, 회원에 관한 신상정보를 저장하는 회원데이터베이스와, 발주/수주물품에 관한 정보를 저장하는 발주/수주 데이터베이스와, 관련기관에 관한 정보를 저장하는 관련기관 데이터베이스를 포함하는 데이터 베이스와, 발주/수주에 관한 전반적인 처리를 수행하기 위한 발주/수주프로그램과 발주/수주내역을 조회하기 위한 검색프로그램을 포함하는 프로그램저장부로 구성된 것으로서, 상기 사용자중 발주의뢰자가 입찰 마감종료후에 다수(가령, 1∼3위)의 수주응찰자를 조회한 다음, 최종 1명의 낙찰자를 선정하고, 계약 실행여부를 확인하기 위해 선정된 낙찰자에게 이메일로 공사참여 또는 납품의향서를 송신하며, 낙찰자로부터 공사참여 또는 납품의향 확인신호가 접수된 경우에는 발주/수주업무가 완료되도록 제어하고, 또한 발주의뢰 등록하는 단계에서 입찰시작전에 발주의뢰자의 선택에 의해 수주응찰참여자를 제한하며, 또한 다수의 수주응찰자자 중에서 1명을 최종 낙찰자로 선정하는 방법을 입찰 시작전에 발주의뢰자의 선택에 의해 달리 할 수 있게 하는 것을 특징으로 한다.
Patent KR-20020089601-A (KR)
Title: The control system and method of the power source on recording on the record medium
Inventor: LEE JEONG JUN
IPC: G11B19/02
Filed: 2001-05-23
Abstract: PURPOSE: A system and a method for managing power in recording at a recording medium are provided to prevent the recording medium from stopping the recording process due to the shortage of power. CONSTITUTION: A system for managing power in recording at a recording medium includes a power transform and monitoring element(110) transforming power of a power source(100) and monitoring the residual amount of the power when providing power to record at a recording medium(130) through the power source, a recording medium recording element(120) operating to record at the recording medium by the power transformed in the power transform and monitoring element, a system control element(140) generally controlling the power transform and monitoring element, and the recording medium recording element.
Patent KR-20020091420-A (KR)
Title: Fractal image compression method
Inventor: WEE YOUNG CHEUL
IPC: H04N19/90
Filed: 2001-05-30
Abstract: PURPOSE: A method for compressing fractal images is provided to improve image compression rate and process the edge and texture of an image well. CONSTITUTION: A processing block is transformed by A transform using bits of T(b,R)/4 to search the original image for a similar block in size of 2bX2b satisfying error allowance. When the similar block has been found, A transform is stored corresponding to the processing block without increasing the number of bits. When the similar block has not been found, the processing block is transformed by B transform using bits of T(b,R) to search the original image for the similar block. When the similar block has been found, the B transform is stored corresponding to the processing block. If the similar block has been found, the processing block is divided into four to generate four sub-blocks each of which has the size of b/2Xb/2. The sub-blocks are A-transformed or B-transformed to search the original image for a similar block until the size of the divided block becomes 2X2.
Patent KR-20020091658-A (KR)
Title: Memory cell structure of metal programmable ROM capable of improving memory density and read speed and reducing power consumption
Inventor: DO YEONG SUK
IPC: G11C17/12
Filed: 2001-05-31
Abstract: PURPOSE: A memory cell structure of metal programmable rom capable of improving integrity and read operation rate and reducing power consumption are provided which can improve an integrity and a read operation rate and also can reduce power consumption. CONSTITUTION: The memory cell structure comprises word lines(WL1,WL2) and a bit line(BL) and the first and the second virtual ground line(VGND1,VGND2). The first bit cell is selected by a signal of the above word line and a signal of the first virtual ground line, and the second bit cell is selected by the signal of the word line and a signal of the second virtual ground line. The first bit cell and the second bit cell shares one cell transistor connected to the bit line. The another end of the cell transistor is connected selectively to one of the first virtual ground line and the second virtual ground line and a ground line(GND), or is floated, and a gate of the cell transistor is connected to the above word line.
Patent KR-20020091946-A (KR)
Title: System for offering premiums and ordering food and drink using a table having aparatus of roulette game and the method thereof
Inventor: AN JONG DAE
IPC: A47B25/00
Filed: 2001-06-01
Abstract: PURPOSE: Provided are a system for offering premiums and ordering foods and drinks using a table having apparatus of a roulette game, and a method thereof. Therefore, a user can enjoy the game without feeling bored while waiting hits ordering foods and drinks. CONSTITUTION: The system for offering premiums and ordering foods and drinks using a table having apparatus of a roulette game is characterized by comprising a display showing a roulette game on the surface of a table, controlling the roulette game, and transmitting numbers determined by the roulette game by wire or wireless.
Patent KR-20020096072-A (KR)
Title: Check valve used LPG injection line
Inventor: BAE HAN
IPC: F17C13/04
Filed: 2001-06-15
Abstract: PURPOSE: A check valve used for an LPG(Liquefied Petroleum Gas) injection line is provided to improve safety by preventing the opening of a valve body when a fuel is not injected and to reduce the time for injecting LPG by fully opening the valve body. CONSTITUTION: A valve body(21) for selectively opening and closing an LPG path is installed in a valve housing(20) installed between a charge valve and a hose. The valve body includes a valve seat(22) and an operating bar(24). The LPG path is opened and closed by the valve seat rotating around a rotating shaft(23). A fixing ledge(20a) is protruded onto the inner wall of the valve housing to limit the rotational angle of the valve seat. A solenoid(25) is buried in the valve housing to maintain the open state of the valve body. A relay switch(50) supplies the voltage of a battery(52) to an electromagnet(29) of the solenoid when an operating switch(51) is turned on.
Patent KR-20020096410-A (KR)
Title: Sram with triple railed power line
Inventor: JUNG MIN CHEOL
IPC: G11C11/413
Filed: 2001-06-19
Abstract: PURPOSE: An SRAM(Static Random Access Memory) having a triple power line is provided to reduce power consumption of a cell interface portion by using gate oxide layers having different thickness. CONSTITUTION: A memory array portion(30) includes a plurality of unit memory cells(30a) and receives the first a supply voltage through the first internal power line. A transistor of the unit memory cell(30a) has a gate oxide layer of the first thickness. A cell interface portion(20) includes driving circuits for driving the unit memory cells(30a) of the memory array portion(30) and receives the second supply voltage through the second internal power line. A transistor of the driving circuit has the gate oxide layer of the first thickness. A peripheral circuit portion(10) includes peripheral circuits driving an SRAM. A transistor of the peripheral circuit portion(10) has the gate oxide layer of the second thickness thicker than the first thickness. The first internal power circuit provides the first internal supply voltage. The second internal power circuit(51) includes a driving portion for driving the second internal supply voltage. Each setup voltage level of the first and the second internal supply voltages are lower than an external supply voltage level.