baber/WOPTO huggingface dataset:
Patent KR-20000045950-A (KR)
Title: Method for making cake with egg and pre-mix using microwave oven and pre-mix
Inventor: JEONG KEUN HO
IPC: F24C7/08
Filed: 1998-12-30
Abstract: PURPOSE: A pre-mix and its production method are provided to save a time with a process to cook in a microwave oven by kneading one egg, to simply make a cake anybody and to easily store and circulate. CONSTITUTION: A wheat flour of 20-60wt%, a refined sugar of 20-60wt%, a vegetable oil of 5-15wt%, a starch sugar of 10-25wt%, a baking powder of 0.5-2wt% and an emulsifier of 0.1-1wt% are mixed. A powder concentrated fruits, a chocolate, a coffee, a powdered milk, a peanut, a sesame, a raisin, spices, food colors, sugars, food addition are mixed by compounding 0.001-10wt% to improve a flavor, an eating feeling, a quality and a taste of a product. The obtained pre-mix of 30-60g and a one egg of 40-70g are mixed and are mixed with a weight rate of the same multiple. The obtained dough is cooked at 90-150seconds in 400-600W or at 60-120seconds in 600-800W.
Patent KR-20000064361-A (KR)
Title: 탄성표면파를사용하여동작하는필터
IPC: H03H9/145
Filed: 1996-12-16
Abstract: 입력 측에서는 병렬로 접속되고 출력 측에서는 직렬로 접속된 적어도 두 개의 음향 트랙(10내지 13 또는 20 내지 23)을 가지는 SW 필터가 제공된다.
Patent KR-19990077122-A (KR)
Title: 둘레에 밀봉부가 마련된 파스너 조립체
IPC: A44B18/00
Filed: 1997-11-12
Abstract: 쿠션 내에 성형될 수 있는 파스너 조립체(10)에 있어서, 파스너 조립체(10)는, (ⅰ) 배후층(15)과, (ⅱ) 서로 대향하는 체결층(20)과, (ⅲ) 발포재 밀봉부(35, 40)를 포함하고, 배후층(15)은 파스너 조립체(10)를 쿠션에 고정시키기 위한 앵커 수단을 포함하고, 체결층(20)은 가장 자리로부터 안쪽으로 이격되어 체결층(20)의 주위에 둘레 여백을 형성하는 접촉형 체결면(30)을 포함하고, 발포재 밀봉부(35, 40)는 상기 둘레 여백에 배치되며, ASTM D3574-95에 따라 측정하였을 때 압입력 변형값이 약 10 내지 약 1000 파운드 범위이다.  파스너 조립체의 제조 방법과 파스너 조립체를 포함하는 쿠션도 역시 기재되어 있다.
Patent KR-19990087173-A (KR)
Title: 토션 댐퍼 및 이 토션 댐퍼가 장착된 댐핑 장치
IPC: F16D13/64
Filed: 1997-12-22
Abstract: 본 발명은 입력 요소와 회전 출력 요소사이에 배치되고, 원주방향으로의 작동을 갖는 탄성 부재(60)를 포함하는 토크 댐퍼에 관한 것으로, 2개의 가이드 와셔는 요소중 하나와 결합하며 요소중 나머지 하나와 결합하는 디스크의 각각의 면에 축방향으로 위치되며, 탄성 부재(60)는 2개의 가이드 와셔 및 디스크사이에서 작동하는 반면 서로 대향해 위치된 윈도우(64, 65)내에 위치되며 가이드 와셔 및 디스크내에 형성된다.  상기 윈도우(64, 65)는 측방향 에지(75, 76)를 가지며, 상기 측면 에지(75, 76)상에 탄성 부재(60)의 단부를 정지시키며; 2개의 가이드 와셔의 윈도우(64, 65)는 외측 에지(77)를 가지며, 상기 외측 에지(77)는 입력 요소 및 출력 요소의 일 방향 또는 다른 방향으로 상대적인 회전동안 탄성 부재(60)의 단부와 스쳐지나가지 않는 영역(93)내의 내측으로 편심된 부분(A)을 가지며, 이 부분(A)은 호의 형태로 원주방향으로 연장하며, 이 호의 중심(100)은 입력 요소 및 출력 요소의 회전 축에 대해 외측에 위치설정된다.
Patent KR-20000016578-A (KR)
Title: Apparatus for treating waste water
Inventor: SHIOTA YUSUKE
IPC: C02F1/02
Filed: 1998-04-21
Abstract: PURPOSE: An apparatus for treating waste water is provided to prevent a solid catalysis from being operated in a solid catalysis filling layer and to prevent a raise of pressure loss, degeneration of performance, and abrasion of the solid catalysis. CONSTITUTION: An apparatus for treating waste water, characterized in that a pressure layer capable of following up the deformation or a movement of a surface of a packed bed of a solid catalyst and/or a solid adsorbent is provided on the packed bed. More particularly, an apparatus provided with a pressure layer, which has a capability of following up a movement of a surface of such a packed bed as mentioned above, on the packed bed, or an apparatus provided with a water-permeable pressure layer, which has a capability of being deformed in accordance with the deformation of a surface of such a packed bed, on the packed bed. Owing to such pressure layers, a movement of a solid catalyst in a solid catalyst packed bed is prevented effectively, and various problems which are caused mainly by a movement of the solid catalyst, such as the abrasion of the solid catalyst, the deterioration of the performance thereof and an increase in a pressure loss, can be solved. This enables the waste water to be treated stably for a long period of time.
Patent KR-19990067908-A (KR)
Title: 유기 디술피드 및 폴리술피드의 합성
Inventor: FREMY GEORGES
IPC: C07C319/22
Filed: 1999-01-15
Abstract: 유기 디술피드 및 폴리술피드의 제조에서, 염기성 촉매로서 에틸렌디아민 또는 폴리에틸렌-폴리아민기로 관능화된 폴리스티렌-디비닐벤젠 수지를 사용한다.
Patent KR-20000051987-A (KR)
Inventor: LEE JEON GUK
IPC: H01L21/316
Filed: 1999-01-28
Abstract: PURPOSE: A shower head of an apparatus for forming a large area-thin oxide film is to enhance the uniformity of thickness of an oxide film formed on the upper surface of a substrate. CONSTITUTION: An apparatus for forming a large area-thin oxide film comprises: a heating chuck(13) disposed at the inside of a chamber(11); a pumping port disposed below the chamber; and a shower head(14) disposed on the heating chuck, and having a gas distributor(21) for injecting a process gas onto a substrate(12). The gas distributor comprises a plurality of gas distributors arranged in multi-steps. The gas distributors have a pyramid shape and the gas distributors are assembled by a bolt such that they are easily assembled or disassembled. The gas distributor comprises a gas staying part at which an introduced gas is temporarily stayed and a gas injecting hole communicating with the gas staying part, for injecting the gas downward.
Patent KR-20000052010-A (KR)
Inventor: LEE CHANG HO
IPC: H03B5/04
Filed: 1999-01-25
Abstract: PURPOSE: A system for compensating output deflection of an oscillator is provided to compensate the output deflection resulting from an oscillator, which is susceptible to temperature change, by using heat sensor. CONSTITUTION: A system for compensating output deflection of an oscillator includes a control unit (10) which controls to accord a phase of a reference clock with that of an output clock by receiving the reference clock and the output clock. An oscillation unit(11) generates an oscillation frequency according to a control of the control unit. A frequency demultiplying section(12) generates output clocks to accord phase difference with a reference clock after receiving the oscillation frequency of the oscillation unit(11). A sensing unit(13) provides temperature information to the control-unit(10). Thus, the deviation of the oscillation unit(11) is compensated by using the temperature information provided.
Patent KR-19990072456-A (KR)
IPC: H01L21/02
Filed: 1999-02-05
Abstract: 트렌치는 포토레지스트막을 레벨간 절연체상에 형성하고 마스크로서 포토레지스트를 사용하여 등방성 식각을 수행함으로써 형성된다.  플라티늄(Pt)으로 만들어진 하부 전극층, 유전체로 만들어진 유전체막 및 플라티늄(Pt)으로 만들어진 상부 전극층은, 예를 들면, CVD법에 의해 순서대로 각각 형성된다.  더욱이, 상기 하부 전극층 및 상기 상부 전극층은 종단점 검출층(end point detection layer)이 될 상기 레벨간 절연체를 갖는 트렌치를 제외하고 CMP법에 의해 선택적으로 제거되고, 동시에 표면이 평탄화된다.  따라서, 상기 하부 전극층 및 상기 유전체막의 에지 둘다, 및 상기 상부 전극층으로 구성되는 평탄한 표면의 구조를 갖는 캐패시터는 상기 레벨간 절연체의 트렌치에 각각 형성된다.  식각은 플라티늄과 같은 안정한 재료가 전극 재료로서 사용되어도 용이하게 수행될 수 있고, 그 결과 상기 하부 전극층, 상기 유전체막 및 상기 상부 전극층이 일체로 처리되기 때문에 제조 공정이 간략화될 수 있다.
Patent KR-20000055649-A (KR)
Inventor: LEE KI JOO
IPC: G11B7/095
Filed: 1999-02-09
Abstract: PURPOSE: A revising method and apparatus for seek servo system according to a kind of optical disk is provided to perform a stable seek operation by setting only initial value of a characteristic value for driving a seek servo system and revising the characteristic value according to a kind of an optical disk. CONSTITUTION: A sled motor driving unit(12) drives a sled motor for moving an optical pickup(10) to a target track of an optical disk(11) sought by the optical disk(10). An actuator driving unit(13) drives an actuator for performing a focusing/tracking control of the optical pickup(10). A focusing/tracking error detecting unit(14) computes output signals of photo diodes for detecting an optical volume reflected from the optical disk(11) and outputs an error signal. A timing unit(15) counts a time required when seeking an other location in a random location of the optical disk(11). A count unit(16) counts the number that the optical pickup(10) operated according to a characteristic value of a seek servo system(20) seeks an address randomly. A microcomputer(17) increases or decreases the characteristic value of the seek servo system(20) at a certain interval according to a result of a reference value detecting unit(19). A memory(18) stores a seek time and an error signal occurred according to a seek of the optical pickup(10). The reference value detecting unit(19) computes a mean value of the seek time and a mean error of the error signal stored in the memory(18) according to a control of the microcomputer(17).
Patent KR-20000059356-A (KR)
Inventor: KWON HO SEOK
IPC: C07D241/36
Filed: 1999-03-03
Abstract: PURPOSE: A novel piperazine derivative is provided which has excellent anti-cancer effect and low toxity. CONSTITUTION: The piperazine derivatives are shown in a chemical formula(I) wherein R1, R2, R3, R4, R5 and R6 are respectively hydrogen atom, halogen atom, hydroxy radical, nitro radical, amino radical, low class alkyl radical of C1-C4, low class ester radical of C1-C4, unsaturated alkyl radical of substituted or unsubstituted C3-C8, cyclo alkyl radical with substituted or unsubstituted 3-6 rings of C3-C8, low class alkoxy radical of C1-C4, low class thioalkxoy radical of C1-C4 and substituted or unsubstituted low class alkylamino radical. And in the formula, Y is oxygen atom or sulfur atom and Z is hydrogen atom, hydroxy radical, low class alkoxy radical of C1-C8, low class alkyl radical of C1-C4 and low class thioalkoxy radical of C1-C4.
Patent KR-20000060398-A (KR)
Inventor: HONG GYE HYEON
IPC: A63B23/04
Filed: 1999-03-15
Abstract: PURPOSE: A sports apparatus for the nether limbs is provided, by which walking exercises can be performed automatically in a stable posture to correct the walking posture and lead the exercise of ankle and toe joints. CONSTITUTION: A sports apparatus for the nether limbs comprises: a) a base frame(10); b) a motor(20) positioned at one side of the base frame and providing continuous driving power in one direction; c) a power transmitting device(40) for transforming the driving power of the motor into alternate reciprocal motion and transmitting it; and d) a first and second tracks(80) which are positioned in parallel at the top of the base frame along the length thereof in order to be alternately and reciprocally moved by the power transmitting device.
Patent KR-20000060484-A (KR)
Inventor: KIM JUN HAN
IPC: A23F3/00
Filed: 1999-03-16
Abstract: PURPOSE: Method for preparing adlay tea containing Nephrite powder that it can have medical effects by mixing Nephrite powder with adlay tea prepared is provided. CONSTITUTION: The adlay tea containing Nephrite powder is provided by mixing 3-10wt% Nephrite powder of 150-1000 granularity with a usual mixer while manufacturing adlay tea composed of adlay powder 5.6wt%, soybean powder 5 wt%, unpolished rice 32wt%, corn powder 2wt%, cream powder 5wt%, lactose 40wt%, and salt 0.4wt%, and then packing in a small quantity for comfortable drinking. And the adlay tea containing Nephrite powder can be also prepared by heating into concentrated liquid of a certain degree brix, and then mixing 3-10 wt% of Nephrite. The composition of the Nephrite powder comprises silicon 34%, magnesium 10%, calcium 4.9%, iron 0.23%, aluminum 0.16%, cooper 0.17%, cobalt 0.046%, manganese 0.14%, tin 0.024%, beryllium 0.00072%, silver 0.0013%, titanium 0.0038%, nickel 0.0028%, and chromium 0.0030%. Thereby, the adlay tea prepared through this method has a synergy of the germination and detoxification effects of adlay tea and the functions of Nephrite jade activating cells, removing heavy metals, regulating pH, and softening hard water, which are verified by various experiments.
Patent KR-20000060808-A (KR)
Inventor: PARK TAE SANG
IPC: H04M3/42
Filed: 1999-03-19
Abstract: PURPOSE: An electronic telephone number service method using a telephone is provided for forming a telephone number book based on a personal information file using a telephone, easily using an information file anywhere without having a telephone number book using the telephone and automatically connecting a telephone number selected by a user. CONSTITUTION: When a service user(transmission side) dials a service use number(namely, service identification number) in order to receive an electronic telephone number service(S201), A telephone system connects the service user to a telephone storing database(20)(S202). Namely, when the service user dials the telephone number service use number using the telephone(S201), the service use mode is started. At this time, the switch(10) connects the service user to the telephone number storing database(20)(S202). An inherent number input message is transmitted to the transmission side to request to input an inherent number in a telephone system(S203).
Patent KR-19990078297-A (KR)
Title: 정지화상및동화상데이터용영상데이터디코더
IPC: H04N5/93
Filed: 1999-03-26
Abstract: 본 발명의 영상 데이터 디코더는 동화상 데이터 및 정지 MPEG 또는 JPEG 데이터를 서로 교대로 디코딩한다.  이 디코더는 각각 16 라인을 포함하는 인접한 마크로 블록 라인들을 디코딩하는 사이에 인터벌 없이 동화상 데이터를 디코딩함으로써, 인접한 화상 프레임 간의 시간 인터벌을 증가시킨다.  이 디코더는 추가의 데이터 디코더 없이 증가된 시간 인터벌 동안 정지 MPEG 데이터 내의 여러개의 슬라이스 또는 여러개의 마크로 블록 라인들을 디코딩한다.
Patent KR-20000016847-A (KR)
Inventor: ISIZAKAICHIRO
IPC: G02F1/133
Filed: 1999-04-06
Abstract: PURPOSE: An apparatus for hardening a sealing material is provide to prevent mismatching in a parallel direction and warping of a substrate by heating and pressing uniformly. CONSTITUTION: The apparatus comprises: (a)a couple of fixed boards inserting a substrate therebetween, and (b)a operating board set opposite with the fixed board and moving in a vertical direction from the fixed board for pressing the substrate. In the apparatus, the fixed boards are a two-storied structure composed of a upper board with a cooling mean and a lower board with a heating mean. A separating means for releasing a contact condition of the two fixed boards is mounted. The operating board has a heating means and a pressing surface thereof is formed by a material with flexibility.
Patent KR-20000065794-A (KR)
Inventor: LEE MOON SHIK
IPC: A01B1/06
Filed: 1999-04-09
Abstract: PURPOSE: A hoe having excellent strength and made by a mechanical process and method for making the hoe which can improve productivity and save manufacturing costs are provided. CONSTITUTION: A method for making a hoe comprises the steps: a) pressing a metal plate for making a grip which has a thickness having the strength need to the hoe grip to cut the hoe grip which is narrow width at the part to be attached to a hoe blade and wide at the part to be assembled with a hand grip; forging the wide part in the direction of thickness to form a curved surface having increased strength; folding orthogonally the end of the wide part of the forged hoe grip and forging the folded end to thin gradually toward the tip; b) pressing a metal plate for making a blade which has a thin thickness having the strength needed to the blade and forming an engaging groove at the edge to be inserted to the hoe grip; c) inserting the folded end of the hoe grip into the engaging groove of the hoe blade and then welding to unit the grip and blade; and d) pressing the part of the hoe blade welded with the hoe grip to form a reinforcing tendon.
Patent KR-20000072850-A (KR)
Inventor: KIM KI HWA
IPC: B24B1/00
Filed: 1999-05-01
Abstract: PURPOSE: A polishing buff and method for making the same are provided to improve productivity and life cycle of polishing buff, to improve workability and utility, and to freely make it with a desired thickness. CONSTITUTION: In a polishing buff and method for making the same, the method is featured in that thermoplastic epoxy resin(3) containing polishing agent(2) is continuously sprayed and repeatedly stacked on a linen cloth(1) until obtaining desired layers, the layered linen cloth(1) is pressed by a heat roller and then dried, and then the dried linen cloth(1) is cut as a desired shape by a press. Accordingly, since the productivity of the polishing buff itself is improved, the productivity of the final products is improved. Also, since the wear degree of the buff is low, the life cycle of the product is considerably increased. In addition, since any metal to be worked is continuously polished by polishing agent contained in the buff without covering the buff with additional polishing agent, workability and utility are improved. Furthermore, the buff can be freely made with a desired thickness.
Patent KR-19990088040-A (KR)
Title: 성형케이싱내의언더컷팅홈에결합블록의죔쇠끼워맞춤에의해결합된인터리브된극과모듈을갖는고전류절환장치
IPC: H01H71/10
Filed: 1999-05-04
Abstract: 회로 차단기, 네트워크 보호기, 분리 스위치 및 전달 스위치와 같은 2개의 성형 케이스 전기 스위치(3a, 3b)는 결합 블록(21)에 의해 함께 나란히 고정된다.  결합 블록(21)은 그들 측벽(23)을 따라 연장된 텅(27, 29)을 구비하며, 측벽은 죔쇠 끼워맞춤에 의해 스위치 성형 케이싱의 대향 측벽(9a, 9b)의 불규칙면(11a, 11b)을 언더컷팅하는 언더컷팅 홈(13, 17)에 체결한다.  성형 케이싱의 전방부(5f) 및 후방부(5r)에 대한 분리된 결합 블록(21f, 21r)은 적소에 삽입되고 성형 케이싱상의 플랜지(49a-49b)에 체결되는 볼트(45)에 의해서 보유된다.  극(7)은 표준 스위치(3a, 3b)를 주문제작하지 않고 사용할 수 있도록 임의의 소망 형태로 외부 도체(61, 63)에 의해 평행하게 된다.
Patent KR-20000074241-A (KR)
Inventor: LEE GWAN HUI
IPC: F28F21/00
Filed: 1999-05-19
Abstract: PURPOSE: A copper heat sink and method of manufacturing the same is provided to achieve a maximized radiation efficiency, improved performance and prolonged lifespan. CONSTITUTION: A copper heat sink comprises a copper frame(1) having a sponge-like structure having a plurality of air pores, and an aluminum(2) injected into a predetermined thickness beneath the copper frame. The thickness of the aluminum is 1 to 2mm. A method comprises the steps of performing an electroless plating onto a base so as to provide conductivity to the base, performing copper plating to the base and forming a copper film of a predetermined thickness, performing heat-treatment to the base and obtaining a sponge-like structured copper frame, and dipping the copper frame into a molten aluminum so that aluminum is injected to a lower portion of the frame.
Patent KR-20000074356-A (KR)
Inventor: CHOI GWANG SEONG
IPC: H01L23/433
Filed: 1999-05-20
Abstract: PURPOSE: A semiconductor chip package is provided to have the semiconductor chip package occupy a small area of a printed circuit board by forming a chip-sized package. CONSTITUTION: A semiconductor chip package comprises a semiconductor chip(300a), a thermosetting resin(301), a multilayered interconnection pattern(90), a connection unit, a high molecule resin(87), a metal layer(63), solder resist(92) and a solder ball(93). The semiconductor chip has a plurality of pads on its top surface. The thermosetting resin is formed on the semiconductor chip excluding the pad. The multilayered interconnection pattern is composed of a stack of Al/Ni/Cu on the thermosetting resin. The high molecule resin surrounds both sides and bottom of the semiconductor chip. The metal layer for a sink is adhered to the bottom of the high molecule resin. The solder resist covers all the surface of the semiconductor substrate except a predetermined portion of the multilayered interconnection pattern. The solder ball is adhered to an upper surface of a predetermined portion of the multilayered interconnection pattern.
Patent KR-20010001199-A (KR)
Title: Internet information billing system
Inventor: HA CHANG SEOK
IPC: G06Q30/06
Filed: 1999-06-02
Abstract: PURPOSE: An internet information charge system is provided to allow a user to use one same ID in all information providing sites on the Internet if the user subscribes one system and registers his ID in the system, and achieves a united accounting operation through one united bill. CONSTITUTION: An internet information charge system includes a user server, a charge system database, a manager server, and a main system having an interface module. The user server is connected to an information provider, corrects a subscription information or user information, and searches a used pay. The charge system database stores an information user private information, a user payment information, a log information, a provided service information, and an information provider information. The manager server manages a subscription of the information provider and a new service, searches/corrects the user information, and charges/manages a used fee. The main system is connected to the manager server and the charge system database, receives a request of a vendor system of the information provider, authorizes ID and password of the user, approves an information providing about the user, transmits the result to the vendor system, stores the result in the charge system database, and transmits a subscription information of the user to the vendor system. Thereby, the Internet information charge system allows a user to use one same ID in all information providing sites on the Internet if the user subscribes one system and registers his ID in the system, and achieves a united accounting operation through one united bill.
Patent KR-20000047412-A (KR)
Inventor: KWAK JIN GEUN
IPC: G03G15/11
Filed: 1999-06-04
Abstract: PURPOSE: A method of cleaning developing solution of a wet printer is provided to reduce pollution of a photosensitive belt and a transfer roller due to holdup volume and to remove developing solution remaining between a spray nozzle and a developing roller by reducing the amount of toner particles of the residual developing solution stayed in the photosensitive belt between a developing roller and a squeeze roller after finishing a developing mode. CONSTITUTION: A developing solution supplied via a spray nozzle is developed to a static latent image area of a photosensitive medium by using a developing roller. The developed solution is squeezed by a squeeze roller. The developing solution stayed in the photosensitive medium between the developing roller and the squeeze roller. The potential of the developing roller is lowered to transfer toner particles to the developing roller from the developing solution stayed in the photosensitive medium by the potential difference of the developing roller and the photosensitive medium after development. Herein, a pollution due to transfer of a lump of the remaining developing solution to an image area of a photosensitive belt at an irregular interval is prevented. After removal of a drip line, the photosensitive belt and a transfer roller may be polluted by holdup volume in a developing mode. The pollution is reduced by a cleaning method thus the quality of printing is improved.
Patent KR-20010001803-A (KR)
Inventor: SEO HO SU
IPC: H03D7/16
Filed: 1999-06-08
Abstract: PURPOSE: An apparatus for generating and controlling a multi-intermediate frequency is provided to generate stably an intermediate frequency having the high deflection and to reduce the power consumption. CONSTITUTION: An apparatus for generating and controlling a multi-intermediate frequency comprises the following structure. A voltage output from a battery(310) is converted by a converter(320). The converted voltage is stabilized by a regulator(330). The voltage output from the regulator(330) is risen twice. The risen voltage is stabilized by a stabilizing circuit(350). CONT is input into a resonance circuit. Accordingly, a stabilized voltage is provided to a terminal using a multitude of intermediate frequency.
Patent KR-20010003299-A (KR)
Inventor: PI SEUNG HO
IPC: H01L21/76
Filed: 1999-06-22
Abstract: PURPOSE: A method for manufacturing semiconductor device using trench isolation process is provided to prevent from generating a thinning of a gate oxide layer on an active region, the thinning being caused by an NH3 heat treatment for restricting a stress induced by post thermal oxidizing process, thus to improve an electrical characteristic of the device. CONSTITUTION: A manufacturing method comprises the steps of: forming a trench on an isolation region on a semiconductor substrate(20); forming a thermal oxidizing layer to fill the inner face of the trench; heat-treating the former object in NH3 atmosphere to form a nitride layer(24) on an interface between the semiconductor substrate and the thermal oxidizing layer; forming a field oxide layer(25) buried in the trench; forming a gate sacrificial oxide layer on an active region of the semiconductor substrate in such a manner that the nitride layer being oxidized in sufficient depth; removing the nitride layer by removing the sacrificial oxide layer; and forming a gate oxide layer(27) on the active region of the semiconductor substrate.