baber/WOPTO huggingface dataset:
Patent KR-19990066777-A (KR)
Title: 반도체장치의 제조방법
IPC: H01L21/762
Filed: 1998-09-23
Abstract: 필드산화막에 의한 소자분리영역을 갖는 반도체기판상에 반도체소자를 형성하는 반도체장치의 제조방법에 관한 것으로서, 도전층의 끝부에 전계가 집중해서 절연파괴가 발생하고 전하유지특성이 열화한다는 문제점을 해소하기 위해서, 실리콘기판상에 실리콘산화막을 형성한 후 그 위에 다결정실리콘막을 형성하고, 다결정실리콘막상에 실리콘질화막을 형성한 후 실리콘질화막상의 소정 영역상에 개구를 갖도록 패터닝을 실시한 레지스트를 형성하고, 다결정실리콘막 및 실리콘질화막을 에칭하여 소정 영역의 다결정실리콘막 및 실리콘질화막에 개구를 형성하고, 실리콘산화막의 노출된 부분을 열산화하여 소정 영역에서 융기한 열산화막을 형성하고, 실리콘질화막 및 열산화막상에 다결정실리콘 또는 비정질실리콘의 평탄화용 실리콘막을 형성하고, 열산화막과 실리콘질화막의 경계부의 오목부를 매립해서 평탄화하고, 평탄화용 실리콘막을 열산화에 의해 열산화막과 일체화시켜 평탄화열산화막을 형성하고, 실리콘질화막의 개구의 벽면이 모두 노출될 때까지 평탄화열산화막을 에치백하여 필드산화막을 형성한 후 실리콘질화막 및 다결정실리콘막을 제거하고, 필드산화막상에 끝부를 갖는 도전층을 형성하는 구성으로 하였다. 
     이렇게 하는 것에 의해서, 도전층의 끝부에 있어서의 전계집중을 완화시킬 수 있다는 효과가 얻어진다.
Patent KR-20000020862-A (KR)
Title: Dc power generation circuit for driving liquid crystal display
Inventor: PARK KWAN SEON
IPC: G09G3/18
Filed: 1998-09-24
Abstract: PURPOSE: A DC power generation circuit for driving a liquid crystal display is provided to achieve the effects of high efficiency, low power consumption, high temperature characteristic according to the temperature characteristic of passive element and cost saving. CONSTITUTION: A common emitter amplification part(100) is composed of a first resistance(R1), a capacity(C1), a second resistance(R2), a third resistance(R3), a fourth resistance(R4), a fifth resistance(R5), an NPN transistor(Q1), a sixth resistance(R6) and a capacitor(C2). A charge pump part(200) comprises a capacitor(C3) connected to the contacts of the resistance(R4,R5), a diode(D1) connected to the capacitor(C3), a diode(D2) connected to the diode(D1) and a capacitor(C4) connected between the anode and earth terminal of the diode(D2). An output part(300) consists of a seventh resistance(R7), an NMOS transistor(M1) of which a gate is connected to the contacts of the diode(D2) and the capacitor(C3), a drain is connected to the resistance(R7) and a source is earthened, and a capacitor(C4) connected between the source of NMOS transistor and the earth terminal.
Patent KR-20000021808-A (KR)
Title: Ultraviolet curable composition having improved writing property and white board film utilizing it
Inventor: AN CHEOL HEUNG
IPC: C08F220/00
Filed: 1998-09-30
Abstract: PURPOSE: The ultra violet curable composition is provided which has an improved scratch resistance, chemical resistance, thermal resistance and solvent resistance, writing property and clearance property, CONSTITUTION: A composition comprises 30-90 weight % of ultra violet curable acrylateoligomer, 1-30 weight % of ultra violet reactive diluent, 0.1-10 weight % of photopolymerization initiator, 0.05-20 weight % of leveling agent and residue of solvent. Thus, an ultra violet curable composition containing 73 weight parts of 6-functional aliphatic urethane acrylate oligomer, 10.0 weight parts of trimethylolpropane triacrylate, 5 weight parts of methacrylated acidic compounds, 5 weight parts of hydroxy ethyl acrylate, 6.0 weight parts of alpha-hydroxy-ketone, 1.0 weight parts of leveling agent and residue of isopropyl alcohol is coated on polyethylene terephthalate film, dried at 50°C for 20 seconds, and irradiated by ultra violet to give the title film.
Patent KR-20000025154-A (KR)
Title: Micro controller including analog/digital converter
Inventor: KIM IN HYEOK
IPC: H03M1/00
Filed: 1998-10-08
Abstract: PURPOSE: A micro controller is to improve the processing speed of the micro controller by allowing a CPU to execute any program during an operation of an analog/digital converter. CONSTITUTION: A micro controller comprises: an analog/digital converter(20) for converting an inputted analog signal into a digital signal; a memory(25) for storing the digital signal; a first latch circuit(21) for latching end of conversion inputted from the converter and outputting an interrupt request signal; a CPU(22) for outputting an interrupt acknowledge signal in response to the interrupt request signal; a second latch circuit(23) for latching the interrupt acknowledge signal; and an interrupt vector generating section(24) for generating an interrupt latch vector signal in response to the interrupt acknowledge signal.
Patent KR-20000025262-A (KR)
Title: Method for flattening semiconductor devices
Inventor: KIM WAN SIK
IPC: H01L21/28
Filed: 1998-10-09
Abstract: PURPOSE: A method for flattening using CMP(chemical mechanical polishing) is provided to improve a uniformity of an interlayer dielectrics by further comprising previously etching step before CMP. CONSTITUTION: A semiconductor substrate(10) includes a first region(A) having high pattern density and a second region(B) having low pattern density. A first insulating layer(30) is formed on the semiconductor substrate corresponding to the first region(A). And a second insulating layer(50) is formed on the semiconductor substrate(10) corresponding to the second region(B) and the first insulating layer. The second insulating layer(50) formed on the first region(A) having high pattern density is etched to a predetermined depth and then the entire surface of the second insulating layer is flattened by CMP.
Patent KR-20000025707-A (KR)
Title: Short bar-shaped fast food using mixed rice and preparation method thereof
Inventor: JIN HONG SEUNG
IPC: A23L7/10
Filed: 1998-10-14
Abstract: PURPOSE: A short bar-shaped fast food and a preparation method thereof are provided, to improve the nutrition, taste and convenience. CONSTITUTION: The short bar-shaped fast food is prepared by cooking mixed rice using 40-70wt% of rice, 10-30 wt% of vegetables and fruits, 10-25 wt% of fish and meat, 0.2-4 wt% of seasonings and 3-8 wt% of oils; making gruel with a viscosity of 2,000-3,500 cp using 20-50 wt% of cereals and 5-25 wt% of vegetables, curry, beef broth, and salt, etc. and cooling the gruel to -2 to 15°C; blending the mixed rice and the gruel in a ratio of 1: 2 to 1: 4; charging the mixture into an edible soft bag with a length of 3-20 mm and a diameter of 1-5 cm; and pasteurizing it in a range of F0 value being 4.0 to 5.5 by known method.
Patent KR-20000026358-A (KR)
Title: Ribbon cable coupling apparatus
Inventor: KIM YONG DAE
IPC: H01R13/00
Filed: 1998-10-20
Abstract: PURPOSE: A ribbon cable coupling apparatus is provided to prevent a cable from being down by suppressing fatigue of the ribbon cable when a moving board is moved. CONSTITUTION: A ribbon cable coupling apparatus includes a moving board(21) and a stationary board(23). A ribbon cable(29) is coupled to both ends of the ribbon cable pins(25). The ribbon cable pins(25) are supported by guides(27). The ribbon cable pins(25) and the guides(27) are coupled to the moving and stationary boards(21,23). Each end portion of the guides(27) is extended and rounded so as to prevent fatigue of the ribbon cable(29) when the moving board is moved.
Patent KR-20000027337-A (KR)
Title: Pick-up actuator
Inventor: SONG MYONG JONG
IPC: G11B7/09
Filed: 1998-10-28
Abstract: PURPOSE: A pick-up actuator is provided to quickly reach an object lens to a target point, and to prevent malfunction of an optical recode by attenuating a vibration by a damping fluid in the case that a lens holder is vibrated when operating a focus and a tracking. CONSTITUTION: A base member(10) has a body portion(12) and a holder supporting portion(14). Yokes(20,20') is installed to the body portion(12) of the base member(10) at a uniform interval. The holder supporting portion(14) is attached to an external side surface of the yoke(20') by several screws. A circuit board(18) is attached to the holder supporting portion(14). Magnets(30.30') are attached to an inner side surface of yokes(20.20'). A lens holder(40) is located between magnets(30.30') installed to the base member(10). An object lens(10) is mounted on a center portion of the lens holder(40). One side of guide axes(131,132) is connected to both sides of the lens holder(40). The other side of guide axes is penetrated a space portion formed to an inner portion of the holder supporting portion(14) and is connected to the circuit board(18).
Patent KR-20000028015-A (KR)
Title: Installation structure for hollow bumper of suspension system for vehicle
Inventor: KIM HWA JIN
IPC: F16F9/32
Filed: 1998-10-30
Abstract: PURPOSE: An installation structure for a hollow bumper is provided to shorten the number of workers by easily preparing a bumper bracket as well as to keep the shock absorption for a long time by improving the life span of the hollow bumper. CONSTITUTION: A hollow bumper is installed on a vehicle body by the steps of: fixing a bumper bracket(20) on the lower end of a vehicle body to equalize an installation hole(21) of the bumper bracket with an insertion hole(11) of a vehicle body(10); forcibly inserting a hollow bumper(30) into a combining unit(22) formed on the lower end of the bumper bracket; installing a bolt(60) on a hollow unit formed inside of the hollow bumper and penetrating the bolt into the insertion hole of the vehicle body; and firmly fixing the hollow bumper to the vehicle body by connecting the front end of the bolt with a nut(70).
Patent KR-20000028078-A (KR)
Title: Method for setting water flow of washing machine
Inventor: CHOI BYEONG WON
IPC: D06F33/02
Filed: 1998-10-30
Abstract: PURPOSE: A method for deciding a water flow is provided to automatically decide the strength of water flow performing a serious of washing according to a cleaning cycle of a filter unit. CONSTITUTION: After a washing is performed, water is stored in a water tank(10) in the state of early operation of a washing machine. If the washing is finished by deciding if the washing is finished, the washing number is stored in a microcomputer. The strength of water flow generated by the rotation of a pulsator(60) is divided to a strong, a middle and a weak according to the kind of the washing, and the strength of water flow is accomplished by converting the rotary speed of a motor(50) with the control of the microcomputer. The microcomputer decides if the washing number is reached the standard number and if the cleaning number of a filter unit(40) is reached to the standard number corresponding to the washing number of a soft fabric. If the cleaning number is corresponded to the washing number of the soft fabric, the strength of water flow is weakened.
Patent KR-19990076536-A (KR)
Title: 진폭 재구성을 사용하여 진폭 및/또는 각도 변조된 반송파를증폭하는 방법 및 장치
IPC: H03F3/21
Filed: 1998-11-16
Abstract: 본 발명은 스위칭된 적당한 세트에 의해 구동되는 다중 포화된(필요한 경우에는 포화되지 않은) 증폭기를 사용하여 진폭 및/또는 위상된 신호 및/또는 입력 신호로부터 파생된 위상 변조된 일정 진폭 신호를 고출력으로 선형 증폭한다.  본 발명은 세 가지 진폭 재구성 기술을 결합하여 진폭 재구성 변조기를 디지털적으로 구현한다.
Patent KR-20000038260-A (KR)
Title: Method and device for detecting signal of optical magnetic disc
Inventor: SEO JEONG GYO
IPC: G11B20/00
Filed: 1998-12-04
Abstract: PURPOSE: A method and a device for detecting a signal of an optical magnetic disc are provided to improve a level of a playing signal read by a pulsed laser readout method. CONSTITUTION: A light reflected from a recording medium is converted to electric signals by collecting the light in the recording medium. A peak value of the signals is detected. Signals of an optical magnetic disc are detected by low-pass filtering the signals. The signals are a first and a second high frequent signals delayed a phase by converting to the electric signal after phase-delaying the reflected light. Thereby, a method and a device for detecting a signal of the optical magnetic disc are improving a signal level of a data reproduction signal. Moreover, a ratio between the signal and a noise of the data reproduction signal is improved.
Patent KR-20000038584-A (KR)
Title: Arithmetic logic unit for detecting speed
Inventor: JO SUNG GI
IPC: G06F7/62
Filed: 1998-12-08
Abstract: PURPOSE: An arithmetic logic unit(ALU) is provided to detect speed by adding logic verifying speed transition according to process transition. CONSTITUTION: An arithmetic logic unit for unit operating two data of n bits inputted comprises a first and a second register(22,23), a first, a second and a third multiplexer(24,25,26), a arithmetic unit(27), a third register(28), a timing generator(29), a logic gate(31). The first and the second register output by a load signal after storing a data inputted through a data base. The multiplexers(24,25,26) have n bit to select inputting of the arithmetic unit. The arithmetic unit(27) performs real arithmetic by receiving a data output through the first and the second multiplexer. The third register(28) stores the arithmetic result. The timing generator(29) supplies a timing signal to the multiplexers and the third register. And the logic gate(31) outputs a load signal to the third register by forming between the timing generator and the third register.
Patent KR-19990063116-A (KR)
Title: 내연 기관의 유압 장치에 압력 매체 및/또는 윤활유 공급 장치
IPC: F01L1/34
Filed: 1998-12-16
Abstract: 본 발명에 따른 내연 기관의 유압 장치에 압력 매체 및/또는 윤활유를 공급하기 위한 장치에는 오일로부터 공기를 제거하기 위해 압력 라인에 설치된 수단을 포함한다.  공급 탱크로의 밸브 제어 연결부를 갖는 압력 라인에 형성된 팽창 챔버를 사용하여 공기가 제거된다.
Patent KR-20000042384-A (KR)
Title: Antenna for a portable wireless device and method for manufacturing the same
Inventor: JANG EUNG SOON
IPC: H01Q9/30
Filed: 1998-12-24
Abstract: PURPOSE: An antenna for a portable wireless device and a method for manufacturing the antenna for a portable wireless device are provided to improve the communication quality by widening the bandwidth of the antenna. CONSTITUTION: An antenna for a portable wireless device is operated both as a helical antenna and as a rod antenna. The method for manufacturing the antenna for a portable wireless device comprises the steps of mounting a spring(33) to a metal rod(34), soldering the spring(33), extruding a pipe(32), inserting a bobbin(31) into the pipe(32), installing a cutting(35) to the bottom portion of the metal rod(34), assembling a Ni-Ti wire(36).
Patent KR-20000042842-A (KR)
Title: Overlay mark of semiconductor device
Inventor: PARK JEONG HYEON
IPC: H01L21/56
Filed: 1998-12-28
Abstract: PURPOSE: An overlay mark of a high integrated semiconductor device is provided to enable an easy check of misaligned cell pattern. CONSTITUTION: An overlay mark includes an outer box formed in the preceding process and an inner box formed in the following process. The outer box has a mother vernier(10), a first mother sub-box(12) and a second mother sub-box(14). While the mother vernier(10) has a vacant rectangular shape, the first mother sub-box(12) has lengthwise stripe patterns(12a) and the second mother sub-box(14) has widthwise stripe patterns(14a). The respective stripe patterns(12a,14a) have the same width and space. Like the outer box, the inner box has a daughter vernier, a first daughter sub-box and a second daughter sub-box. The daughter vernier has also a vacant rectangular shape, but is smaller than the mother vernier(10). Each of the first and second daughter sub-boxes has also lengthwise or widthwise stripe patterns, however the daughter sub-boxes have smaller patterns in length, width and space than the patterns(12a,14a) of the mother sub-boxes(12,14).
Patent KR-19990024261-A (KR)
Title: 광전송 시스템의 가입자회선 시험장치
Filed: 1998-12-28
Abstract: 광전송 시스템의 가입자 회선을 효율적으로 시험하기 위한 장치로서, 아날로그 회선의 특성을 테스트하기 위한 아날로그 회선 인터페이스부와, 디지털 회선의 특성을 테스트하기 위한 디지털 회선 인터페이스부와, 상기 아날로그 회선 인터페이스부 및 상기 디지털 회선 인터페이스부로부터의 데이터를 분석하여 시험을 행하는 디지털 시그널 프로세서와, 상기 디지털 시그널 프로세서에서 사용하는 프로그램 및 데이터를 저장하기 위한 메모리와, 상위 시스템과의 데이터 통신을 위한 듀얼포트램(Dual-port RAM)과, 운용자와의 명령 및 결과 데이터 통신을 위한 직렬인터페이스를 구비하며, 상기 아날로그 회선 인터페이스부는, 릴레이를 구비하여 측정대상 선로를 선택하는 측정모드 선택부와, 상기 측정모드 선택부에 연결되고 저항분압회로를 구비하여 측정전압범위를 선택하는 측정전압범위 선택부와, 상기 측정전압범위 선택부로부터의 아날로그 신호와 상기 디지털 시그널 프로세서와의 인터페이스를 위한 아날로그-디지털 인터페이스부를 구비한다.
Patent KR-20000043480-A (KR)
Title: Spice components for cooking dduk-bok-ki and instant dduk-bok-ki for cooking contained spice components for cooking dduk-bok-ki
Inventor: KIM JAE HOON
IPC: A23L27/00
Filed: 1998-12-29
Abstract: PURPOSE: A preparation method of spice components for cooking roasted rice cake with red pepper paste(Dduk-bok-ki) and instant Dduk-bok-ki for cooking contained spice components for cooking Dduk-bok-ki is provided, which is multify taste of Dduk-bok-ki and is not changed taste of Dduk-bok-ki for preservation for long time. CONSTITUTION: A process of method of spice components for cooking Dduk-bok-ki and instant Dduk-bok-ki for cooking contained spice components for cooking Dduk-bok-ki has several steps: washing and chopping garlic, onion, green onion to be 1-10mm size ; making eggshell calcium; blending starch, eggshell calcium from a second step or powdered anchovies, salt, sugar, sodium glutamic acid, nucleic acid, succinic acid, pepper or cheese powder through mixing rate in non-gravitation blender; adding thick soypaste mixed with red peppers, yeast essence to source from a fourth process, condensed milk, water and selectively mixing sesame oil, condensed milk, paprika, water and selectively mixing sources from a first, second, third process, beef essence, hot taste sauce or paprika and stirring mixture at 30-60°C for 10-30 minutes; sterilization the mixture in sealed tank at 80-100°C for 30-60 minutes; packing soup for cooking Dduk-bok-ki. and packing soup, rice cake, spice for cooking Dduk-bok-ki.
Patent KR-20000045272-A (KR)
Title: High aperture ratio and projection liquid crystal device and manufacturing method thereof
Inventor: PARK IN CHEOL
IPC: G02F1/133
Filed: 1998-12-30
Abstract: PURPOSE: A liquid crystal device with high aperture ratio and projection is provided to solve the problem of the on-current being reduced and to improve the aperture ratio by forming the light blocking pattern. CONSTITUTION: A device comprises a low substrate(20), a gate bus line(21), a second gate insulation layer(22), a data bus line(23), a TFT transistor(25), a counter electrode(27), a common electrode line(28a), a light blocking pattern(28b), a pixel electrode(29), a color filter(33), and a liquid crystal layer(40). A manufacturing method comprises a step of forming the light blocking pattern, gate bus line, and a counter electrode; a step of forming the first gate insulation layer; a step of patterning the first gate insulation layer so that it only exists on the transistor area; a step of forming the second gate insulation layer outside the first gate insulation layer; a step of depositing metal layer; and a step of forming data bus line by patterning a part of the metal layer.
Patent KR-19990030476-A (KR)
Title: 진선 샤프펜
Filed: 1998-12-21
Abstract: 학생들은 한번쯤 책상에서 샤프펜을 떨어트려서 샤프펜의 샤프심 지지대 부분이 휘어져서 다시 사용하지 못했던 일이 많이 있었을 것이다.    그래서 이런 일을 방지하기 위해서 샤프펜의 꼬다리 부분의 속에 샤프심 지지대 휘어짐 방지 장치를 장착해서 용수철 탄성계수 이상의 힘을 받으면 용수철이 작용해서 샤프심 지지대 부분이 샤프펜 꼬다리부분 안쪽으로 들어가서 샤프심 지지대 부분이 구부러지는 것을 방지할 수 있다.
Patent KR-19990035828-A (KR)
Title: 다공 필름의 제조용 스크린
Filed: 1995-07-24
Abstract: 본 발명은 열가소성 필름 또는 시트(17)의 천공용 원통형 스크린(14)에 관한 것이다.  스크린(14)은 함께 고정되어 원통형을 형성하는 비교적 얇은 시트(31)로 제조된다.  다수의 구멍(41)이 시트(31)에 위치하고, 시트(31)에 있는 구멍(41)은 스크린(14)을 관통하는 통로(45)를 형성한다.  통로는 스크린(14)의 표면(39)에 실질적으로 수직인 면(47)에 대하여 약 5° 내지 약 60°의 각도로 배향된다. 
     .
Patent KR-19990035832-A (KR)
IPC: H04M17/02
Filed: 1996-07-24
Abstract: Radio mobile terminal provided with an additional chip card reader of prepaid chip cards, which can be made available both on a terminal realized according to the TACS technology and on a terminal employing the GSM technology. The prepaid chip card embodies the payment means for the radio mobile telephone service.
Patent KR-19990037677-A (KR)
Title: 신규 오피오이드 펩티드
IPC: A61K38/00
Filed: 1996-08-14
Abstract: 본 발명은 통증 치료용 신규 오피오이드 펩티드 뿐만 아니라 그의 제조 방법 및 이들 펩티드를 포함하는 제약학상 허용되는 조성물에 관한 것이다.  본 발명은 또한 본 발명의 조성물을 사용하여 환자의 통증을 조절하는 방법 및 통증 치료에 효과적인 제형의 제조시 상기 화합물의 용도에 관한 것이다.  본 발명의 펩티드는 μ-오피오이드 수용체에 대한 고도의 선택성을 갖는다.  본 발명의 펩티드는 말초 μ-오피오이드 수용체에 대해 실질적으로 작용하는 진통제로서 특히 적합하다.  이들 펩티드는 말초적으로 작용하기 때문에 중추 진통 작용에 통상적으로 관련된 부작용의 발생을 실질적으로 피할 수 있다.
Patent KR-19990082282-A (KR)
Title: 브레이크 마모감지기
Filed: 1997-02-06
Abstract: 본 발명의 브레이크 조립체는 브레이크 로타(1)에 브레이크 라이닝(4, 5)을 가압하기 위한 작동수단(6), 브레이크 라이닝(4, 5)을 브레이크 로타(1)에 근접배치 하기 위하여 작동수단(6)에 의해 구동될 수 있게 된 조절수단(13)과, 브레이크 제동방향으로 브레이크의 작동운동에 응답하는 마모감지수단(60)으로 구성된다. 마모감지수단(60)은 직선방향으로 작동부재(102)의 운동에 의하여 작동될 수 있게 된 감지기(101), 조절수단(6)의 운동에 응답하는 회전 종동부재(106)와, 종동부재(106)의 회전운동을 작동부재(102)의 직선운동으로 바꾸어 주기 위한 전동기구(104)로 구성된다. 브레이크는 브레이크의 정비중에 감지수단(60)과 브레이크의 기준 사이의 관계를 리셋팅 하기 위한 리셋트 수단을 포함한다. 리셋트 수단은 작동부재(107)의 유효길이를 조절하기 위한 수단으로 구성된다.
Patent KR-20000050290-A (KR)
Inventor: KWON YEONG JONG
IPC: H01L21/00
Filed: 1999-01-02
Abstract: PURPOSE: A robot arm facilities used in an apparatus for manufacturing a semiconductor is provided to reduce extra money by minimizing the need to exchange a robot arm to another, and to maximize an operating efficiency by minimizing an interrupted time of the robot arm facilities. CONSTITUTION: A robot arm facilities used in an apparatus for manufacturing a semiconductor comprises a semiconductor substrate(30) and a robot arm(20). The robot arm is composed of shape memory material, and is used in handling the semiconductor substrate.
Patent KR-20000050296-A (KR)
Title: The automatic valve lapping system
Inventor: BAEK SOO GON
IPC: F16K25/00
Filed: 1999-01-04
Abstract: PURPOSE: An automatic valve lapping apparatus is provided to automate the repair work for preventing leakage of valve owing to abrasion of a valve seat and disc caused by long term operation of plant facility or any alien substances contained in a fluid as well as the lapping work for lapping a valve seat and a disc when a valve is originally made. CONSTITUTION: An automatic valve lapping apparatus comprises an automatic center alignment device(22) and a device for regulating an angle of inclination(70). The automatic center alignment device(22) automatically aligns a center of valve seat(31) to make the apparatus and the valve seat(31) and disc(23) rotate in a circle under a constant force by a rotating axis such that the valve seat(31) and disc(23) are subject to surface treatment uniformly while overall surfaces thereof are uniformly contacted when the valve seat(31) and disc(23) is subjected to lapping. The device for regulating an angle of inclination(70) allows an angle of lapping axis(20) to be artificially regulated. On a valve body(30), openings(44) for bolt are formed to allow various size of valves to be fitted thereinto. The valve body(30) and the lapping apparatus are fixed with fastening bolts(41). Press power of lapping disc(23) against the valve seat(31) is controlled by regulating a tension force of a spring(12) mounted around a motor(10). An angle between a lapping axis(10) and an axis of the motor(10) is absorbed in a universal joint(21). In order to inspect the interior of the valve during lapping work and to insert lapping compound therein, an inspection hole is also provided. According to the lapping apparatus, various size of valves can be subject to lapping with a single apparatus, so that a flexibility of the apparatus is secured. Particularly, a valve can be worked under a state mounted in a piping without any necessary to cut away a valve from a piping in a work site and to bring the valve to a factory.
Patent KR-20000052058-A (KR)
Inventor: CHO BOK WON
IPC: H01L21/02
Filed: 1999-01-29
Abstract: PURPOSE: A capacitor of semiconductor apparatus is to increase an effective area of the capacitor while maintaining a specific dielectric constant of a dielectric layer. CONSTITUTION: A semiconductor apparatus capacitor comprises a silicon substrate(20) as a first conductive semiconductor substrate; an impurity region(21) formed on the substrate; an interlayer dielectric(22) formed on the substrate and having a contact for exposing the impurity region; a tungsten plug(23) as a conductive plug burying the contact; a first and second storage electrode(24,25) consisting of a semi-sphere protrusion with irregular shape, formed on the insulation layer, and contacting the plug; a third storage electrode(26) consisting of a tungsten layer covering the second storage electrode; a dielectric layer(27) formed on a surface of the tungsten layer; and an upper electrode formed on the dielectric layer.