baber/WOPTO huggingface dataset:
Patent KR-20010055830-A (KR)
Inventor: KIM JIN SEONG
IPC: H01M6/14
Filed: 1999-12-13
Abstract: PURPOSE: Disclosed is a non-aqueous electrolyte for battery to form stable film(SEI: Solid Electrolyte Interface) on the anode surface in initial charge/discharge of battery, to improve high temperature stability of battery without decrease of charge/discharge efficiency of electricity and life by adding compound to prevent gas generation in battery inside at initial charge/discharge and the high temperature. CONSTITUTION: This non-aqueous electrolyte for battery is prepared by adding butane sulfone of chemical formula(1) in non-aqueous electrolyte composed of organic solvent or lithium salt. The content of butane sulfone is 0.1-5wt.% to whole non-aqueous electrolyte. The organic solvent is selected from the group composing of ethylene carbonate(EC), propylene carbonate(PC), dimethyl carbonate(DMC), diethyl carbonate(DEC), dipropyl carbonate(DPC), ethylmethyl carbonate(EMC), methyl propyl carbonate(MPC), methyl carbonate(EPC) etc. The lithium salt is selected from the group composing of LiPF6, LiClO4, LiAsF5, LiBF4, LiCF3SO3 and the addition quantity of lithium salt is 0.7 to 2.0 mole.
Patent KR-20010056832-A (KR)
Inventor: LEE SE MIN
IPC: H01L27/108
Filed: 1999-12-17
Abstract: PURPOSE: A fabrication method of a semiconductor device is provided to easily form a bit line contact with reduced aspect ratio in a capacitor under bit line structure. CONSTITUTION: In the method, after a word line(20) is formed on a semiconductor substrate(10), the first interlayer dielectric layer(30) is deposited thereon and planarized. Then, a capacitor contact hole(41) and the first bit line contact hole(51) are simultaneously formed therein and filled with plug poly to form a capacitor contact and the first bit line contact(52). Next, an insulating layer is deposited thereon, and then a bit line contact pad(80) is formed over the first bit line contact(52) and also extended to a field oxide region. Next, a spacer(82) is formed on a sidewall of the bit line contact pad(80), and then a lower electrode(72) of a capacitor is formed over the capacitor contact. Next, a tantalum oxide layer, a titanium nitride layer and an upper electrode of the capacitor are formed thereon, and then the second interlayer dielectric layer is deposited on an entire surface. Thereafter, the second bit line contact(54) having an inner sidewall spacer(56) is formed above the bit line contact pad(80), and a bit line is formed.
Patent KR-20000048288-A (KR)
Inventor: TZTZIMOTOCHUHEI
IPC: C30B25/10
Filed: 1999-12-21
Abstract: PURPOSE: A method for manufacturing a crystal system silicon semiconductor thin film is provided to improve the characteristics of the crystal system silicon semiconductor thin film in order to reduce the manufacturing cost. CONSTITUTION: A method for manufacturing a crystal system silicon semiconductor thin film includes following steps. At the first step, a plasma(P) of layer material gas including at least silicon system gas is formed around the semiconductor substrate(S). At the second step, a silicon thin film is formed on the substrate(S). At the third step, an agitated ion produced from the particle material gas is illuminated on the semiconductor substrate. At the forth step, the silicon on the thin film is solidified. The layer material gas according to the present invention further includes impurity gases so as to form a silicon semiconductor device.
Patent KR-20010061607-A (KR)
Inventor: YOON CHEOL NAM
IPC: H01L21/00
Filed: 1999-12-28
Abstract: PURPOSE: An apparatus and a method of cleaning a semiconductor equipment are to form a cleaning medium with a composite particle and to decrease the natural evaporation of a liquified nitrogen. CONSTITUTION: A cleaning chamber(1) comprises an infrared lamp(11) and a filter(13). Particles of an ultra pure water are generated by an ultrasonic wave generator. The particle of the ultra pure water, carbon dioxide and cold nitrogen are mixed. A solidified cleaning medium is injected through an injection nozzle(17). Cleaning process is effected by the cleaning medium which is impacted with an object to be cleaned. Factor to determine the ability of the cleaning comprises a size of the particle to be solidified. A heater(5) heats a substrate(3) to a predetermined temperature. By this heating, pollutants are not adhered to the object to be cleaned. By a flow regulator(35,37), the discharge amount of the nitrogen and the carbon dioxide is controlled.
Patent KR-20010065211-A (KR)
Inventor: KO YEONG SANG
IPC: B24B55/00
Filed: 1999-12-29
Abstract: PURPOSE: A checking device of abrasive cracks in rotating components is provided to uniformly check a grinded face through regular pressurizing force. CONSTITUTION: A checking device of abrasive cracks comprises a working plate(10) having supporting bars(11a,11b) to be adjusted lengths according to a length of a rotating component(100); and a checking member(20) to rub testing solution on the rotating component(100) by installing on the working plate(10). The working plate(10) contains a crosswise rail(12) and a lengthwise rail(13). The checking member(20) comprises a vertical bar(21) and an operating portion(22) to be vertically adjusted a position according to a position of a grinded face(110) by installing in the lengthwise rail(12).
Patent KR-20010065265-A (KR)
Inventor: KIM DONG PIL
IPC: B22D41/00
Filed: 1999-12-29
Abstract: PURPOSE: A withdrawing device of a top nozzle for a casting ladle is provided to reduce an operating time, to improve the working productivity and to prevent an accident by eliminating the waste top nozzle. CONSTITUTION: A withdrawing device of a top nozzle contains a guide(18) driven by a first cylinder(19); a second cylinder installed on the guide; a cylindrical crusher body(15) having a crusher to be fixed in the guide, inserted in the top nozzle(14) of a ladle(12), formed a groove therein and to moved vertically; a withdrawing rod protruded outside the crusher body, moved frontward/backward by the second cylinder, formed a spline outside the protruded portion, formed a coupling(25) in the tip and formed a coupling fixing key to be inserted in the groove; and a motor(30) to rotate a gear(32) to be geared with the spline. Thereby, the waste top nozzle is withdrawn completely.
Patent KR-20010065412-A (KR)
Inventor: JUNG UN JAE
IPC: H04L12/24
Filed: 1999-12-29
Abstract: PURPOSE: A method for managing the bearer port status between the devices connected by a V5 interface is provided to identically maintain the bearer port status between the devices connected by a V5 interface, even though a bearer port is added or deleted after the two devices have completed system start procedures. CONSTITUTION: An access network device settles the status of an added bearer port as a remote block state(200). After providing a service block release message to a local exchange(202), the access network device drives a port control message timer(204). The access network device checks whether a response message for the service block release message is provided from the local exchange(206). If the response message is provided from the local exchange before time is out, the access network device checks whether a service block release message is provided from the local exchange(212). If the service block release message is not provided from the local exchange, the access network device checks whether a service block message is provided from the local exchange(218). If the service block message is provided from the local exchange, the access network device provides a response message to the local exchange in response to the service block message(220). Then the access network device maintains the status of the bearer port as the remote block state.
Patent KR-20010059317-A (KR)
Inventor: JUNG U YEONG
IPC: H01L21/027
Filed: 1999-12-30
Abstract: PURPOSE: A mask capable of efficiently compensating an alignment error and a method for manufacturing a semiconductor device using the same are to measure a field size and a registration(overlay accuracy) which are a basic unit of an exposure, thereby obtaining an x and y-axis shot magnify error and an asymmetric magnify error. CONSTITUTION: The mask comprises a vernier for measuring a registration on a scribe lane(42) around a die(41). A daughter vernier(S1) and a reference vernier(c) having a registration error of zero are arranged on a left scribe lane(the first scribe lane) and a lower scribe lane(the second scribe lane), respectively. A mother vernier(M1) is arranged on a right scribe lane(the third scribe lane) and an upper scribe lane(the fourth scribe lane). The first pattern is formed on a substrate using the first mask having the daughter vernier, the mother vernier, and the reference vernier on the first scribe lane.
Patent KR-20000068820-A (KR)
Title: 굽어진 유리 박판을 냉각시키기 위한 장치
IPC: C03B27/044
Filed: 1998-09-10
Abstract: 본 발명은 롤러 컨베이어를 따라 이동하는 굽어진 유리 박판을 냉각시키기 위한 장치에 관한 것으로, 상기 장치는 상기 롤러의 사이에 삽입되는 송풍 박스를 포함하고, 30 mm 미만, 바람직하게는 10 mm 미만의 상기 유리 박판으로부터 소정의 거리로 상기 유리 박판에 대향되는 표면을 구비하되, 상기 표면에는 상기 유리 박판을 향해 공기를 불어 보내는 몇 개의 구멍이 뚫려져 있다.
Patent KR-20000057560-A (KR)
Title: Polyestercarbonate-polyurethaneurea fibers
Inventor: ITO SHINGO
IPC: C08G18/75
Filed: 1997-12-10
Abstract: PURPOSE: Polyestercarbonate-polyurethaneureas based on polycarbonate diols which in turn are based on mixtures of poly(hexane-1,6-carbonate)diol and poly(.ε-caprolactone) diol, cyclic aliphatic diisocyanates and diamine chain extenders are provided. CONSTITUTION: First, 552 g of "Nipporan 982N" capped with 4,4'-methylenebis(cyclohexylisocyanate) (Sanyo Kasei, Kyoto, Japan), molar ratio of modified polycarbonate diol to diisocyanate 1:1.8, was placed in a 2-liter flask and dissolved in 1094 g of DMAc, following which a solution of a mixture of 10.62 g of ethylene diamine and 0.52 g of diethylamine diluted with 100.2 g of DMAc was added dropwise over a period of 20 minutes, thereby carrying out the chain extension reaction and giving a viscous polymer solution. The viscosity of this polymer solution was measured with a falling ball-type viscometer, and was found to be 3540 poises at 400C. The polymer solution (32% solids) was then conventionally dry-spun at a speed of 530 m/min with the speed ratio between the godet roller and the winder set at 1.45, and 18-denier/filament yarn was wound onto a conventional cardboard tube.
Patent KR-20000070027-A (KR)
Title: 절대 온도에 비례하는 전압을 발생하는 장치를 포함하는 집적회로 및 전압 발생 방법
IPC: G01K7/01
Filed: 1998-09-21
Abstract: 회로는 절대 온도에 직접적으로 비례하는 발전기를 포함한다.  교정 또는 외부 참조 구성요소들은 필요하지 않다.
Patent KR-20000070940-A (KR)
IPC: F16B17/00
Filed: 1998-08-04
Abstract: 본 발명은 베어링, 특히 볼베어링(12)을 샤프트(10)에 고정하기 위해 사용되는 샤프트-허브 어셈블리에 관한 것이다.  본 발명에 따라서, 샤프트(10)를 둘러싸는 베어링(12)의 허브 부품(14)은 적어도 하나의 축방향 평면(20)을 가지며, 이 평면상에는 샤프트(10)로부터 소성 변형을 통하여 얻어진 돌출부(24, 30)가 배치되어 축방향 변위는 방지된다.
Patent KR-20010005507-A (KR)
Title: 일차원 고속 격자 광-밸브 어레이가 내장된 디스플레이 장치
IPC: G02B5/18
Filed: 1998-03-19
Abstract: 본 발명은 2차원 이미지를 제공하기 위한 디스플레이 시스템에 관한 것으로, 1차원 광밸브 어레이를 포함한다.  회절 광밸브 어레이는 입사광을 대표되는 이미지 엘리먼트에 의해 한정되는 정도로 회절 또는 반사시키는 변조 엘리먼트를 구비한다. 디스플레이 시스템은 광밸브 어레이로부터의 회절광이 확대 렌즈를 통과하고 어레이로부터의 반사광으로부터 분리되도록 배치된다.  회절광에 의해 형성된 확대된 허상은 확대 렌즈를 통해 뷰잉된다.  뷰어와 확대 렌즈 사이의 스캔 장치는 뷰어가 스캔닝된 이미지를 2차원 이미지로 인식하기에 충분하도록 빠르게 뷰어의 시야에 광밸브 어레이의 이미지를 스캐닝한다.  다른 장치에서, 인쇄기는 인쇄 또는 기록 매체상의 회절 광밸브 어레이의 실상을 스캐닝함으로써 형성된다.
Patent KR-20010005578-A (KR)
Title: 제초제로서의 피라졸 유도체
IPC: C07D405/14
Filed: 1998-03-19
Abstract: 화학식 Ⅰ의 화합물 또는 이의 피라졸 N-산화물, 농화학적으로 허용되는 염 및 입체이성질체는 발아전 및 발아후의 우수한 선택적 제초 성능을 갖는다.  이 화합물의 제조 방법 및 제초 활성 성분으로서의 용도에 대해 기술한다. 
     화학식 Ⅰ 
     
       
     
     상기식에서, 
     W는 (W1), (W2) 또는 (W3)그룹이고; 
     R 11 은 수소, 불소, 염소, 브롬 또는 메틸이고; 
     R 12 은 수소, 할로겐, 메틸, 할로메틸, 니트로, 아미노, 하이드록시, OHC-, HOC(O)-, 시아노, C 1 -C 4 알콕시카보닐 또는 할로메톡시이고; 
     X 1 은 O, S, R 20 N= 또는 R 25 ON= 이고; 
     R 13 은 하이드록시, C 1 -C 6 알콕시, C 3 -C 6 알케닐옥시, C 3 -C 6 알키닐옥시, C 1 -C 6 할로알콕시, C 3 -C 6 할로알케닐옥시, C 1 -C 6 알콕시-C 1 -C 6 알킬, C 3 -C 6 알케닐옥시-C 1 -C 6 알킬, C 3 -C 6 알키닐옥시-C 1 -C 6 알킬, C 1 -C 6 알콕시-C 1 -C 6 알콕시-C 1 -C 6 알킬, B 1 -C 1 -C 6 알콕시, R 21 (R 22 )N-, C 1 -C 6 알킬, C 3 -C 6 알케닐, C 3 -C 6 알키닐, C 2 -C 6 할로알킬, C 3 -C 6 할로알케닐, C 3 -C 6 사이클로알킬, C 3 -C 6 할로사이클로알킬,  B 1 -C 1 -C 6 알킬, OHC-, C 1 -C 6 알킬카보닐, C 1 -C 6 알킬카보닐옥시, C 1 -C 6 할로알킬카보닐, C 2 -C 6 알케닐카보닐, C 1 -C 6 알콕시카보닐,  C 1 -C 6 알킬-S(O) 2 -, C 1 -C 6 할로알킬-S(O) 2 -, (C 1 -C 6 알킬) 2 N-N=CH-, , , B 1 -CH=N-, (CH 3 ) 2 N-CH=N-, (C 1 -C 5 하이드록시알킬)-CH 2 -, (B 1 -C 1 -C 5 하이드록시알킬)-CH 2 -, (B 1 -C 1 -C 5 할로알킬)-CH 2 -, (하이드록시-C 1 -C 5 알킬)-O- 또는 (B 1 -C 1 -C 5 하이드록시알킬)-O-이고; 
     X 1 와  R 13 은 서로 함께 그룹 =N-Y-를 형성하는데, 여기서 Y는 환의 질소 원자에 결합되어 있고; 
     R 20 , R 21 , R 22 , R 25 , B 1 및 Y는 제1항에 정의된 바와 같다.
Patent KR-20010005962-A (KR)
Title: 이미노디숙신산염의 제조 방법 및 용도
IPC: C07C227/06
Filed: 1998-03-23
Abstract: 이미노디숙신산 알칼리 금속은 말레산 무수물(MAA), 알칼리 금속 수산화물(MeOH), NH 3 및 물을 MAA:MeOH:NH 3 :H 2 O = 2: 0.1 내지 4 : 1.1 내지 6.5 : 5 내지 30의 몰비로 70 내지 170℃, 1 내지 80 bar에서 0.1 내지 100시간 동안 반응시킴으로써 제조될 수 있다.  반응 혼합물을 추가의 H 2 O 및 임의의 MeOH와 혼합시키고 50 내지 170℃, 0.1 내지 50 bar에서 NH 3 를 증류하여 제거하고 이어서 H 2 O를 사용하여 고체 함량을 5 내지 60 중량%로 조정한다.  이미노디숙신산 알칼리염을 사용하여 제지 공정에서 식물 섬유의 광도 및 형광을 증가시킬 수 있다.
Patent KR-20010020301-A (KR)
Title: 안정한 약초 치마제
IPC: A61K8/55
Filed: 1999-02-26
Abstract: 본 발명은 기타 치마제 성분에 부가하여 60% 이하의 중탄산 나트륨, 5% 이하의 천연 성분 및 2%의 향미제를 포함하는 치마제 겔을 제공한다.
Patent KR-20010012894-A (KR)
Title: 디스플레이 구동
IPC: G09G3/20
Filed: 1999-03-04
Abstract: 디스플레이(D)를 구동하는 방법에 있어서, 영상 신호 필드로부터의 필드 정보는 다수의 서브 필드들로 분포되고(DD), 각 서브 필드에 대한 개시 시간은 움직임에 따라 발생된다(AU, SOC).
Patent KR-20010013563-A (KR)
Inventor: EGGEN JOSEPHUS H
IPC: H04N5/445
Filed: 1999-03-29
Abstract: A television receiver with an electronic program guide (EPG) is disclosed, which allows a user to navigate through an overview of scheduled television programs each belonging to one of a plurality of program categories. Upon highlighting a program item in the guide, or upon highlighting a pictogram representing an available program category, the receiver produces (14) an auditive signal (AUD) which is characteristic of the relevant program category. This provides an additional feedback to the user which eases the process of navigating through on-screen EPG menus. In embodiments of the receiver, the respective auditive signal is also produced as an alert signal (reminder) that a desired program is about to start. A sequence of such reminders may be given at different instants of time before the program starts. By manipulating (15) a parameter, which is characteristic of a perceived distance from user to receiver (e.g. volume), the auditive signal also indicates the time to lapse until the start of the desired program.
Patent KR-20000057755-A (KR)
Inventor: SSEUBOI OSAMU
IPC: H01L21/02
Filed: 2000-01-14
Abstract: PURPOSE: A semiconductor device is provided to increase a production yield even when a cylindrical capacitor is manufactured, to save a space in a peripheral circuit, and to reduce a parasitic capacitance between a bit line and a conductive plug. CONSTITUTION: A semiconductor device comprises a first insulation layer, a second insulation layer, a capacitor. The first insulation layer is formed on a silicon substrate. The second insulation layer has a different etching characteristic than that of the first insulation layer, formed on the first insulation layer. The capacitor has a storage electrode, protruded on the second insulation layer. The storage electrode is extended from a side part of the second insulation layer to a lower part of the second insulation layer.
Patent KR-20010073379-A (KR)
Title: A health food of tablet type containing Aloe and kelp extract
Inventor: LEE HYOUN HEUI
IPC: A23L33/00
Filed: 2000-01-14
Abstract: PURPOSE: A pill-type health food containing the extracts of aloe and tangleweed is provided, which increases the internal coefficient of utilization of active materials contained in aloe and tangleweed. CONSTITUTION: A method for preparing a pill-type health food containing the extracts of aloe and tangleweed comprises the steps of: (i) adding 70 alcohol to aloe and tangleweed, and extracting at 70-80deg.C for 2 hours, and then evaporating alcohol ingredient; (ii) adding water to the remains, and extracting at 100deg.C for 4 hours; (iii) mixing the prepared water-soluble extract and alcohol-soluble extract, and then concentrating under vacuum to adjust water content up to 50; (iv) pulverizing dried aloe and tangleweed in 100mesh; (v) mixing the powdered aloe and tangleweed with the previously prepared extract, and making into granules; and (vi) drying at 60deg.C and then making into pills.
Patent KR-20010074399-A (KR)
Title: Functional fabrics containing cork and a method preparing the same
Inventor: JUNG SUN GYU
IPC: B32B27/18
Filed: 2000-01-25
Abstract: PURPOSE: A method for manufacturing cloth material including a cork layer is provided to produce light, elastic, fire retardant and soundproof cloth and use the functional cloth as an inner sole of shoe, wall paper and a raw material of floor material. CONSTITUTION: The method includes the following steps of: (i) preparing an emulsion solution by mixing water soluble resin, frothing agent, foam stabilizer, surfactant, crosslinking agent and water soluble binder evenly; (ii) putting the emulsion solution into a frothing machine and generating resin foams by blowing air; (iii) coating the resin foams to maintain the foam stated on the surface of the cloth material; (iv) spreading cork powder on the coated resin foam; and then (v) dehydrating the cloth material by heating the material at 90-250deg.C and compressing the resulting dried cloth material.
Patent KR-20010077587-A (KR)
Title: Video tape reproducing method
Inventor: KIM YEONG GIL
IPC: G11B15/02
Filed: 2000-02-03
Abstract: PURPOSE: A playback method for a videotape is provided to conveniently manage playback number of the tape through attaching a playback decide instrument on the tape. CONSTITUTION: A video stream is coded according to a coding key. Thus, a videotape is generated. An additional data including the coding key and a possible playback number is coded by a VCR(Video Cassette Recorder) set key for being recorded on a smart card. The smart card is attached on the videotape for playing back the videotape according to a playback signal from the smart card. By inserting the smart card to a VCR set, the smart card receives the set key. In case of a present playback number within the possible playback number, the possible playback number is reduced by one.
Patent KR-20010081237-A (KR)
Title: Gain control apparatus of proportional and integral controller
Inventor: CHO HYEON JUNG
IPC: G05B11/36
Filed: 2000-02-11
Abstract: PURPOSE: A gain determining apparatus and method thereof of a PID controller is provided to suitably set a gain value of a PID controller and apply to a system requiring a response characteristics by quickly searching a target solution. CONSTITUTION: A process(S101) determines a population comprised of a plurality of parents(X11,...X1m) corresponding to random PID gain value. The process(S102) calculates a suitability function9((X11,...X1m)) of each parent. The process(S103) grants a ranking and regional temperature(T11,...T1mo) different each other according to the calculated suitability function(f(X11,...X1m)). The process(S104) creates a posterity(X11o,...X1mo) of each parent by using random numbers generated from a random numbers generators. The process(S105) calculates a suitability function of the created posterity(f(X11o,...X1mo)). The process(S106) determines parents of next generation(X21,...X2m) by comparing the suitability function of the parents to the suitability function of the posterity. The process(S107) repeats the S101 and S106 and searches a target solution corresponding to a PID gain value.
Patent KR-20000058055-A (KR)
Inventor: HIROTA KOICHI
IPC: B22F9/02
Filed: 2000-02-15
Abstract: PURPOSE: A quenched member of a rare earth/iron/boron magnet alloy is provided to obtain a quenched member of a rare earth/iron/boron alloy which has an excellent magnetic characteristics. CONSTITUTION: A quenched member of a rare earth/iron/boron magnet alloy comprises an alpha-iron phase, a phase in which R is rich, and RxT4B4. The grain diameter of the alpha iron phase is 0.1 to 20 micrometer. R is a rare earth element which is selected from a praceodimium, a neodimium, a terbium, and a disprocium. The amount of the rare earth element of the R is richer than the amount of the rare earth element of the RxT4B4. The grain diameter of the phase in which the R is rich is 0.1 to 20 micrometer. R
Patent KR-20000030572-A (KR)
Inventor: LEE SEA JOONG
IPC: A01G9/14
Filed: 2000-03-07
Abstract: PURPOSE: A vinyl of an air cover and an insulating cover for air cover are provided to keep the inside temperature as a vinyl product for installing a greenhouse, to block a direct ray of light and to obtain an adiabatic effect of 5 C. degrees, without doubly installing the vinyl house by the air cover double vinyl of an air bag in one pattern. CONSTITUTION: Water is prevented from falling on crops by using an air cover of an air bag as a cover for keeping warm since the air cover of the air bag has an excellent adiabatic property. In addition, the air bag for keeping the temperature in the vinyl house is made up to give an adiabatic effect and to avoid a direct ray of light. When the air bag vinyl product replaces a cloth insulation cover of the vinyl house by the insulation effect of 5°C, the weight is not increased and the air bag vinyl product is strong against humidity. The amount of sunshine is increased since the light of the sun is not blocked even if the insulation cover is covered.
Patent KR-20010091745-A (KR)
Inventor: MOON JONG TAE
IPC: B26D3/00
Filed: 2000-03-17
Abstract: PURPOSE: A multi-functional oxygen cutting machine is provided to cut a hole easily at a small space having reinforcements on all sides as well as to punch holes on an up-right iron plate with a hole cutting machine. CONSTITUTION: A worker marks the center of an iron plate to be cut, draws a pi with a pair of compasses and then sets a distance of the pi by moving a distance adjustor(6). The worker opens an LPG(Liquefied Petroleum Gas) valve(2) and ignites a fire after the set position is fixed by a clamping bolt(7). The flame is adjusted by a control valve(3), and the tip of a support unit is stood erect on the marked central point. The worker opens a high pressure valve(4) when the iron plate is getting hot by the flame from the tip of a fuel intake(5). After that, the worker turns a cutting machine(1) with a hand to cut holes clearly. Therefore, the worker can make holes easily with the new cutting machine at a small space having difficulty in making holes with the former cutting machine. In addition, the cutting process has excellent precision.
Patent KR-20000076960-A (KR)
Title: 고분자 화합물 및 그의 제조 방법
IPC: C08F297/02
Filed: 2000-03-25
Abstract: 본 발명은 페놀 유도체의 덴폴리머(denpolymer) 또는 하이퍼브랜치 폴리머(hyper branched polymer)로 이루어지는 중량 평균 분자량이 500 내지 10,000,000인 고분자 화합물에 관한 것이다. 
     본 발명의 덴폴리머, 하이퍼브랜치 폴리머의 신규 고분자 화합물은 통상의 선상 고분자 화합물과는 기본적으로 다르며, 예를 들어 이 신규 고분자 화합물을 레지스트 재료의 베이스 수지로서 사용하는 경우, 폴리머의 크기는 해상도에 비례하므로, 크기를 작게 하면 선상 고분자 화합물에서는 강도가 부족하다는 결점이 있지만, 이 신규 고분자 화합물은 폴리머의 크기를 임의로 바꾸는 것이 가능하고, 이 신규 고분자 화합물은 강도를 유지하면서 크기를 작게 할 수 있는 특징을 갖는다.  따라서, 종래의 레지스트 재료에는 없는 고해상성, 감도, 플라즈마 에칭 내성이 우수한 레지스트 재료를 제공한다.