baber/WOPTO huggingface dataset:
Patent KR-19990087608-A (KR)
Title: 데이터 변환 발생방법 및 그 장치
IPC: H03M13/01
Filed: 1997-03-04
Abstract: 변환 발생기(20)가 입력/출력 포트(22)를 갖는다.  제어기(24)는 입력/출력 포트(22)에 결합된다.  상기 입력/출력 포트(22)는 입력변환과 데이터 스트링을 수신하며 새로운 변환을 출력시킨다.  하나의 룩업 메모리(26)가 제어기(24)에 결합되며 새로운 변환을 결정하도록 사용된다.  한 시프트모듈(28)과 결합기(30)가 역시 제어기(24)에 결합되며 새로운 변환을 결정하도록 사용된다.  시프트(이동) 모듈(28)과 결합기(30)은 제어기(24)에도 연결되며 메모리(26)와 결합되어 새로운 변환을 결정하도록 한다.
Patent KR-20000065021-A (KR)
Title: 높은산화안정성을갖는대두오일
IPC: C11C1/04
Filed: 1997-04-25
Abstract: 높은 산화 안정성을 갖는 올레산 함량이 높은 대두 오일을 기재하고 있다.  이 오일은 50 시간이 넘는 AOM 유도 시간을 갖는다.  이 오일은 수소 첨가 또는 항산화제를 첨가할 필요없이 산화 안정성을 나타낸다.
Patent KR-20000022407-A (KR)
Title: Liquid crystal display device
Inventor: HANMER JAMES
IPC: C08L101/00
Filed: 1997-06-18
Abstract: PURPOSE: A liquid crystal display device is provided which comprises a liquid crystal cell and at least one compensation film or a combination of polarizers and optical compensators comprising at least one compensation film. CONSTITUTION: The compensation film comprising at least one layer of an anisotropic polymer obtainable by (co)polymerization of a mixture of a polymerizable mesogenic material comprising: a) at least one mesogen having at least one polymerizable functional group, in the presence of b) an initiator, c) optionally a non-mesogenic compound having two or more polymerizable functional groups and d) optionally a stabilizer, characterized in that the layer of an anisotropic polymer has a homeotropic or tilted homeotropic molecular orientation. The invention also relates to methods of manufacturing the compensation films. The invention further relates to mixtures of charily polymerizable mesogenic material used for the manufacturing of the compensation films.
Patent KR-20000050299-A (KR)
Inventor: KWON SOO HYEOK
IPC: G03B7/097
Filed: 1999-01-05
Abstract: PURPOSE: A method for resetting white balance detecting area and apparatus therefor are provided to reset a white balance detecting area so as to include white brilliant spots according to a photographing condition, so that stable color feeling is obtained. CONSTITUTION: In a method for resetting white balance detecting area and apparatus therefor, the apparatus comprises a storage member(100) for storing a value of white balance; a sensing member for detecting a opening condition of a diaphragm(102); a sensing member for detecting a speed of a shutter(104); a setting member for setting a white balance detecting area(108); and a microcomputer(106) for controlling the setting member for setting a white balance detecting area(108) to reset a white balance detecting area so as to include white brilliant spots.
Patent KR-19990067920-A (KR)
Title: 이동체용 이미지 디스플레이 장치 및 방법
IPC: G09F19/22
Filed: 1999-01-15
Abstract: 이동체가 시스템 인스톨부를 통과하는 주기동안 상기 이동체의 속도에 따라 안정된 이미지 디스플레이를 행하는 이동체용 이미지 디스플레이 장치 및 이미지 디스플레이 방법.  인입 속도 검출기 및 인출 속도 검출기가 각각 상기 시스템 인스톨부에 제공된다.  열차의 속도는 열차가 상기 시스템 인스톨부를 통해 통과하는 주기동안 검출된다.  디스플레이 터미널의 디스플레이 타이밍은 상기 검출된 속도에 의해 제어된다.  그 결과, 비록 상기 시스템 인스톨부를 통과하는 열차의 속도가 변화하더라도, 열차 내의 승객이 보는 이미지는 아무런 이동이 없게 된다.
Patent KR-20000054934-A (KR)
Inventor: NOH SANG OK
IPC: H04M3/22
Filed: 1999-02-01
Abstract: PURPOSE: A switching structure for duplexing boards and nodes of an exchange system is provided to stabilize a system by configuring a presently-performed operating board and a redundancy board with a switching ratio of M to N, and by firstly switching a redundancy node and secondly switching the redundancy board when an alarm is generated. CONSTITUTION: A switching structure for duplexing boards and nodes of an exchange system comprises many operation/redundancy board modules(100), an alarm assembling module(200), and switching control modules(300,400). Operation boards and redundancy boards for switching the operation boards are packaged into slots with a switching ratio of M to N in the operation/redundancy board modules. The alarm assembling module assembles node alarms and board alarms from each board, and outputs a switching enable signal for switching the nodes and the boards. The switching control modules controls switching processes of the nodes and the boards by the switching enable signal.
Patent KR-20000055841-A (KR)
Inventor: LEE BYUNG IK
IPC: D06P5/00
Filed: 1999-02-10
Abstract: PURPOSE: A method for preparing a multicolored lace fabrics is provided which is able to produce the race fabrics where clear patterns are dyed on a dim texture. CONSTITUTION: A method comprises steps of: (i) dyeing polyester yarns to repeat shadings gone through the process of creep fabrics, weaving process of weaving up creep fabrics from the polyester yarns, dyeing process, dye-fixing process and polyester yarns winding process; (ii) weaving up the lace fabrics from the polyester yarns and non-dyed polyamide yarns; and (iii) pattern-dyeing un-dyed pattern formation in the woven lace fabrics.
Patent KR-20000034826-A (KR)
Title: Scroll compressor
Inventor: OGAWA HIROSHI
IPC: F04C23/00
Filed: 1999-03-11
Abstract: PURPOSE: A scroll compressor is provided to solve the problems in the conventional technique and to improve unstability that the rotating scrolls are easily relieved by flapping of the rotating scrolls caused by a tiny outer disturbance. CONSTITUTION: A scroll compressor has a fixed scroll (1), a rotating scroll (2), a compliant frame (3) axially supporting the rotating scroll (2) and radially supporting a main shaft (4) for driving the rotating scroll (2) and a guide frame (4) fixed to a hermetically sealed vessel (10) and radially supporting the compliant frame (3). The rotating scroll (2) is slidable in the axial direction by sliding of the compliant frame (3) on the guide frame (4). A space (15f) is formed between the frame (3,4). The pressure in the space (15f) is higher than the suction pressure and at most the same as the discharge pressure. Thus, relief of the rotating scroll (2) is avoidable to quickly and constantly realize a state of normal operation.
Patent KR-19990077833-A (KR)
IPC: G01N33/487
Filed: 1999-03-12
Abstract: 생물계에 존재하는 분석물의 연속적인 경피추출을 위한 자동화된 시스템이 제공된다. 시스템은 전기화학적 바이오센서 검출수단을 사용하여 분석물의 농도를 검출 및/또는 측정하는데 사용될 수 있다. 시스템은 분석물의 연속적인 경피추출을 시행하기 위해 역이온영동을 임의로 사용한다.
Patent KR-20000060945-A (KR)
Inventor: LEE JAE EON
IPC: B21F9/00
Filed: 1999-03-22
Abstract: PURPOSE: A method of manufacturing a steel fiber for reinforcing concrete is provided to improve the resistance of bend or shock by manufacturing the basic material densing for improving the stiffness of concrete. CONSTITUTION: A method of manufacturing a steel fiber for reinforcing concrete comprises : a process of molding the basic material(1) supplied from a supply part(5) to several lines into the basic material(1') of plain section type or plain section type of a track by passing through a rolling machine(2) rotating an upper roller(21) forming several projection parts and a lower roller(22) of plain moving type ; a process of molding the basic material(1') into a waveform material(1'') having the side section of a waveform by passing through a bending part(3) forming up-and-down rollers(31)(32) ; a process of cutting a waveform material(1'') in the predetermined length by a cutter(4) passing through.
Patent KR-20000061180-A (KR)
Inventor: KANG SEONG GIL
IPC: E01B11/00
Filed: 1999-03-24
Abstract: PURPOSE: A join apparatus for a rail jointing part is provided to join the rail independently by using a vibration isolated pad and a rubber clip. CONSTITUTION: In a join apparatus for a rail jointing part, an insulation member is installed around the joint area, and a seam plate(3) is installed in the inside and the outside of rail. A rail clip(4) is installed in the side surface of a seam plate and absorbs load and vibration which occur when a train passes. An upper plate(5) has the supporting projections on the both side and support rail(1) and a rail clip. The upper plate is united and fixed with a rail clip by bolt and spring washer. The head of bolt is inserted into a screwhead groove and goes through the long hole of rail clip, and the spring washer is inserted into the nut(9) and inserted in between the nut and the upper surface of rail clip. A spacer(14) is installed in the inside of supporting projection and keeps the rail clip away from the upper plate at regular intervals.
Patent KR-19990078291-A (KR)
Title: 인쇄장치, 그 제어방법 및 정보기록 매체
IPC: B41J5/30
Filed: 1999-03-26
Abstract: 오프라인 상태로부터의 복귀시의 처리를 선택할 수 있는 인쇄장치, 그 제어방법 및 정보기록매체를 제공한다. 
     호스트로부터의 커맨드에 응하여, 오프라인으로부터의 복귀시에 어떠한 처리를 할 것인지를 그 오프라인의 원인별로 설정한다.  오프라인으로부터 복귀할 때에는, 당해 설정된 복귀처리를 실행한다. 
     일련의 종합이 있는 데이터열의 구분을 나타내는 마커를 설정함으로써, 오프라인으로부터의 복귀시에, 당해 데이터열의 선두로부터 인쇄를 재개할 수 있다.  또한, 마커를 설정할 때의 인쇄장치의 각종 정보를 기억해 둠으로써, 오프라인이 되기 전의 상태로 복구할 수 있다.  또, 마커는 1개 또는 여러개 설정할 수 있으며, 다수 설정한 경우에는 목적하는 마커로부터 인쇄를 재개할 수 있다.
Patent KR-19990064754-A (KR)
Title: 침전 및 준설에 의한 하천수질 정화장치 및 그 방법
IPC: C02F9/00
Filed: 1999-05-07
Abstract: 본 발명은 침전 및 준설(浚渫)에 의한 하천수질 정화장치 및 그 방법에 관한 것으로, 그 구성은 중앙 길이방향으로 형성된 저수로(11)와 그 양쪽편에 고수부지 (12)를 형성하며 고수부지의 양측으로 제방(13)을 형성하여 유역에 내린 강우가 지천을 통해 유입되는 하천수를 흘러가게 하는 하천에 있어서, 상기 저수로(11)와 고수부지(12)에 소정의 크기로 하천의 통수능력에 영향이 없도록 설치된 침전지(30)와; 상기 침전지(30)에 침전된 저니를 현장에서 탈수할 수 있도록 제방에 설치한 슬러지 탈수장치(50)로 이루어지되; 
     상기 침전지(30)는 상부가 개방되어진 직육면체로 하천수가 유입되는 유입부 (20)쪽에 차단수문(23)이 설치되는 차단수문 설치부(25)를 가지고, 저니의 준설이 용이하도록 하천수가 배출되는 쪽이 낮게 형성된 바닥(33)면을 가지며, 준설작업중에 하천수의 통제가 가능하도록 침전지(30)의 중앙에 저수로(11)와 나란한 방향으로 침전지 분할판(32)에 의해 분할된 복수의 침전조(31a)(31b)를 가지는 함체(35)와; 상기 함체(35)의 선단 즉 침전지 유입수로(21)에는 중앙에 침전지 분할판(32)과 연결되어져 있는 머리(22)가 돌출되어 있고 하단에 턱(23a)과 홈(23b)이 있으며 상단에 상단봉 걸이 홈(23c)으로 이루어진 차단수문 설치부(25)와; 상기 차단수문 설치부(25)에 설치되는 조립식 이동 차단수문은 운반이 용이하도록 소형화된 몇개의 조립식 물막이 판(23d)과 이 조립식 물막이 판을 지지시킬 상단걸이 봉(23e)으로 이루어지며, 상기 슬러지 탈수장치(50)는 저니에 함습되어 있는 수분이 배출 되어지는 배출구멍을 다수개 가지는 하부 집수판(51)과 상기 하부 집수판(51)을 지지하는 집수판 지지대(52)로 이루어진 하부집수부(56)와; 상기 하부집수부 상부에는 여과포 또는 모래,자갈등의 여과재로 이루어진 상부집수부(57)와; 저니로부터 분리되어서 하부집수부를 통해 탈수된 탈지액이 배수되어 침전지 상부로 유입되도록  설치되어진 탈지액 배출관(54)과; 넘치는 저니는 투입구 밑에 설치되어 다시 저수로 (11)로 배출되게 연결된 over flow관(55)으로 구성된다. 
     한편, 상기 준설방법은 침전지 분할판(32)을 중간에 두고 침전지(30)의 하천수 유입수로(21)에 설치된 두개의 차단수문(23)중 하나를 닫아 하천수의 흐름을 차단한 상태에서 침전지의 바닥면에 쌓인 저니를 펌프를 이용하여 슬러지 탈수장치 (50)로 펌핑하여 운반하고 운반된 저니에 함습되어 있는 수분은 여과포 또는 모래,자갈등의 여과재로 이루어진 상부집수부(57)로 통과되어 하부 집수판(51)의 배출구멍을 통하여 하부집수부(56)로 모이고 하부 집수부(56)로 모인 탈수된 탈지액이 탈지액 배출관(54)을 통하여 다시 저수로(11)로 배출되는 한편, 넘치는 저니는 투입구(53) 밑에 설치된 over flow관(55)을 통하여 다시 저수로(11)로 배출되어 흘러가게하는 것인데 이것은 하천수중의 오염물질을 침전시키고 이를 준설하여 제거하므로서 하천 및 호소의 수질을 보호하고, 토사 및 저니의 하천 유입에 따른 수중 생태계 파괴를 방지하고 유수 단면적 축소를 방지하며, 강우및 홍수시 토사 및 저니의 퇴적으로 인한 미관불량 및 위생불량을 방지할 수 있으며, 준설된 저니의 탈수장치가 현장에 있으므로 저니의 적정처리가 가능할 뿐만아니라, 준설작업이 기존의 방법에 비하여 효과적이고 경제적인 매우 유용한 발명인 것이다.
Patent KR-20000073260-A (KR)
Inventor: SO UK YEONG
IPC: G11B19/26
Filed: 1999-05-08
Abstract: PURPOSE: A self-aligning apparatus is to simultaneously settle the remove of a rotating unbalance and an early stability of a ball. CONSTITUTION: A turn table is engaged to a spindle motor(30) mounted onto a base(20), the spindle motor providing a driving force to a disk. A self-aligning apparatus for correcting a rotating unbalance of the disk is provided under the turntable. The self-aligning apparatus comprises a ball case(40), a number of alignment balls in the ball case, and an annular space for receiving the ball. The annular space is consisting of an outer racing surface(41) and an inner racing surface(42), and the outer racing surface has a surface roughness different to that of the inner racing surface. The outer racing surface is designed to have a frictional coefficient lower than that of the inner racing surface, so that when the ball runs along the outer racing surface, the friction resistance of the ball and the outer racing surface is minimized.
Patent KR-20000073530-A (KR)
Inventor: KIM DU BONG
IPC: C04B26/04
Filed: 1999-05-11
Abstract: PURPOSE: A manufacturing method of artificial marble is provided, which has pearl pattern with a good quality and improves brightness and durability by special coating. CONSTITUTION: The pearl-coated artificial marble is manufactured by the following steps: (i) coating a surface by pouring 95-99% of unsaturated polyester resin and 1-4% of transparent resin to a mold, followed by hardening at 65-70°C for 30min; (ii) special coating in case of marble ruby star by coating the transparent coated surface(step i) with a mixture of 0.5-1% of pearl, 80-82% of CaCO3 and 17.0-19.5% of polyester resin, in case of marble ceramics by coating the transparent coated surface(step i) with a mixture of 0.2-0.5% of resin selected from white or colored gels and CaCO3 resin; (iii) forming marble body by coating the coated surface(step ii) with a mixture of 75-80% of CaCO3, 17-19% of unsaturated polyester resin and 0.5-1% of pigment, followed by vibrating for removing bubbles and having a shape; (iv) forming the product by hardening at 65-75°C for 1hr.
Patent KR-19990088215-A (KR)
Title: 반도체메모리칩의리던던시평가장치
IPC: G11C29/04
Filed: 1999-05-12
Abstract: 본 발명은 제 1 및 제 2 디코더(5, 6)를 통해 트리거될 수 있는 메모리 필드(2) 내에 매트릭스 형태로 배치된 메모리 셀, 및 메모리 필드(2)의 메모리 셀의 고장시 그 기능을 수행하는 리던던트 메모리 셀(7)을 포함하는, 반도체 메모리 칩(1)의 리던던시 평가 장치에 관한 것이다.  리던던트 메모리 셀(7)과 메모리 필드(2)의 고장난 메모리 셀 사이의 할당이 비휘발성 메모리(8)에 영구 저장될 수 있다.
Patent KR-20000073817-A (KR)
Inventor: KIM GYEONG GI
IPC: G06F13/16
Filed: 1999-05-14
Abstract: PURPOSE: A multi-channel RAMBUS system is provided for expanding a capacity of a memory without any limit due to tTR by increasing the number of RAMBUS memories connected with respect to one RAMBUS memory controller in a memory circuit which uses a RAMBUS memory. CONSTITUTION: A multi-channel RAMBUS system includes a clock signal generator(400), semiconductor memories(420, 421, 422 and 423), a memory controller(410), and a data bus and clock signal transmission line(430). The clock signal generator(400) generates a clock signal. The generated clock signal is supplied to a memory in the circuit. The clock transmission line(430) is extended from the clock signal generator(140) to the semiconductor memories(420, 421, 422, and 423) and the memory controller(410).
Patent KR-20000073856-A (KR)
Inventor: JANG UK JIN
IPC: H04Q1/00
Filed: 1999-05-14
Abstract: PURPOSE: A method for managing number translations and for performing routing processings of a switching system is provided to perform the number translations, depending on each group's corresponding number translation table by using an exchange original group, and to perform the routing processings on other station's occupied route without a temporary local directory number(TLDN) translation on each call processed in other stations by a relaying exchange, so as to translate each number adjusting to each nature of address on many calls. CONSTITUTION: A third mobile switching center(MSC) receives a call setup message. A transmission exchange system performs an authentication of a transmission subscriber through a home location register(HLR). The call setup message becomes one type of a voice call, a circuit call or a packet call. The transmission exchange system allocates and retrieves a group ID, by using an exchange origination group of the call setup message. The transmission exchange system designates a corresponding number transmission table, depending on a retrieved group ID, and executes a number translation.
Patent KR-20000075169-A (KR)
Inventor: KIM JEONG HO
IPC: H04W52/24
Filed: 1999-05-29
Abstract: PURPOSE: A method for controlling power in a wide-band code division multiple access system is provided to measure a signal-to-noise ratio(S/N ratio) necessary for a power control, to feed back a power control command in an in-slot, and to quickly apply a changed point of a power level, so as to improve a transmission power control(TPC) performance of each link and increase a capacity of a system. CONSTITUTION: A base station receives signals supplied from a mobile station. The base station reduces an in-slot interval to the received signals to measure a signal-to-noise ratio(S/N ratio). The base station compares the measured S/N ratio with a preset reference S/N ratio. If the measured S/N ratio is higher than the reference, the base station transfers a power reduction indication to the mobile station. If the measured S/N ratio is lower than the reference, the base station transfers a power increase indication to the mobile station through a down link. The mobile station updates a transmission power level of a corresponding link, to maintain a constant signal quality.
Patent KR-20010001312-A (KR)
Inventor: SHIN HEON GI
IPC: H04L29/02
Filed: 1999-06-03
Abstract: PURPOSE: A cable modem is provided to stably operate the entire system by allotting a part of a main processor with a sub processor. CONSTITUTION: A modulator(20) modulates an upstream data into a CMTS(Cable Modem Terminal System). A demodulator(30) demodulates a downstream data from the CMTS. A MAC(Medium Access Control) processor(40) generates the upstream data or processes a packet by decoding a MAC data from the downstream data. A main processor(60) stores data in a memory, reads and analyzes the stored data, performs a relative operation, throws out unnecessary data and changes data into an Ethernet format to transmit into a PC. A sub processor(50) initially sets and stores in each register by transmitting data, an address signal and a control signal to the modulator/demodulator and controls the modulating/demodulating processes of the modulator/demodulator and a packet processing process of the MAC processor.
Patent KR-20000006616-A (KR)
Inventor: PARK DONG JIN
IPC: A43B5/00
Filed: 1999-06-15
Abstract: PURPOSE: A method for manufacturing a liner is provided to be used for a sport boot using an EVA sponge or a high density sponge with an excellent wearing feeling and warmth keeping rate. CONSTITUTION: A manufacturing method for a sport boot liner comprises:cutting a plate shaped sponge into a certain size and a certain shape; spraying on the rim of the cut material for adhering the cut material by folding into halves; sewing the outer circumferential surface of the adhered unit; heat treating process for softening the physical property of the sponge; covering by using a sock shaped cut material after heat treating and cooling the cut material; and removing the cover from the liner shaping material for separating a boot stretcher.
Patent KR-20010004119-A (KR)
Inventor: CHOI HYEON MUK
IPC: H01J9/24
Filed: 1999-06-28
Abstract: PURPOSE: A method for fabricating a back panel of a plasma display panel is provided to improve the conductivity of an electrode, to restrict the damage of an electrode pattern, and to reduce the thermal deformation of a panel due to a firing process. CONSTITUTION: A method for fabricating a back panel of a plasma display panel comprises the steps of: forming an electrode material layer on the back panel; forming a photosensitive white dielectric layer on the electrode material layer; pattering the photosensitive white dielectric layer by developing it: pattering the electrode material layer by performing a sand blasting method using the photosensitive white dielectric layer as a barrier; firing the photosensitive white dielectric layer and the electrode material layer simultaneously. Since the method eliminates a peel process of a dry film resist although adopting the sand blasting method, an electrode of the back panel is not damaged. Also, since the photosensitive white dielectric layer and the electrode material layer is fired simultaneously, it is possible to prevent a thermal deformation problem.
Patent KR-20010005188-A (KR)
Inventor: BYUN BYEONG HYEON
IPC: H01J11/22
Filed: 1999-06-30
Abstract: PURPOSE: A front panel electrode structure of an alternating current plasma display panel is provided to improve color reproducibility due to the emission of a visible light by intercepting outflow of a Ne light emission. CONSTITUTION: Two transparent electrodes(310) are arranged on the upper of a front glass substrate(300). Each of bus electrodes(320) is arranged on the upper of respective Ne light emission generation parts(330). An outflow of the Ne light emission is intercepted because the bus electrodes(320) are disposed on a portion outflowing the Ne light emission. A unit cell aperture ratio of an alternating current plasma display panel does not vary because an additional layer is not needed. The luminance does not vary according to the position of the bus electrodes(320) because a visible light is generated in a rear panel of a fluorescent substance.
Patent KR-20010008624-A (KR)
Inventor: LEE WAN GI
IPC: H01L21/28
Filed: 1999-07-02
Abstract: PURPOSE: A method for removing a polymer of a contact hole is provided to effectively remove a polymer by accelerating an aerosol of Ar, make a vapor by a heat exchange between a liquid Ar and a semiconductor substrate, and reduce a time for removing the polymer. CONSTITUTION: In a semiconductor element for forming a contact hole(50) on a semiconductor substrate(10) having a predetermined structure, a dry-cleaning is performed by using a liquid Ar(60) and N2(70) at a very low temperature in the contact hole. A temperature of Ar is set at a temperature of -200 deg.C to -180 deg.C. The argon temperature is set to -189 deg.C. To accelerate a vaporization of liquid argon, N2 of room temperature is used.
Patent KR-20010009161-A (KR)
Inventor: JEONG HYUN JEONG
IPC: G03B7/00
Filed: 1999-07-08
Abstract: PURPOSE: A fader for a camera and a camera having the fader are provided to simplify the installation of the fader on a front surface of a lens without changing an internal structure of a camera and achieving a clear photograph under strong light by controlling a light amount by the fader serving as an iris diaphragm. CONSTITUTION: A fader(17) for a camera includes a frame(20), opaque and semi-transparent light cut-off parts(32) protrudedly formed toward an inside of the frame, and transparent light transmitting parts(34,34a) formed between the light cut-off parts and in the center of the light cut-off parts, wherein the light cut-off parts are to be mounted on a front surface of a lens of a camera for reducing an amount of light introduced via a lens without influencing upon an image of an object.
Patent KR-20010009699-A (KR)
Title: Chemical mechanical polishing apparatus
Inventor: CHA HUN
IPC: H01L21/302
Filed: 1999-07-13
Abstract: PURPOSE: CMP device is provided to make a uniform air pressure generation for descending a wafer, and is contacted with a polishing pad under a horizontal maintenance state without slanting the semiconductor wafer, by forming many air supply connection tubes in both directions. CONSTITUTION: CMP device includes a polishing pad covered with slurry and a polishing head contacted with the polishing pad. The polishing head includes a wafer carrier, a cylindrical tube(424), and a connection tube. The semiconductor wafer(400) is mounted on the wafer carrier. The cylindrical tube descends a wafer carrier for mounting the semiconductor wafer, and makes the semiconductor wafer to be contacted with a surface of the polishing pad. The connection tube provides air-moving path to expand the cylindrical tube, and includes at least two connection tubes in order to move uniformly the air toward the both directions. Thereby, the CMP device makes a uniform air pressure generation for descending a wafer.
Patent KR-20010010649-A (KR)
Inventor: LEE JONG SU
IPC: H04N5/74
Filed: 1999-07-21
Abstract: PURPOSE: A polarization conversion element of an optical projection-typed display device is provided to use a glass-structured element for simultaneously performing a polarization splitting and a polarization converting, so as to increase optical efficiency and productivity as lowering a cost. CONSTITUTION: A glass(104a) converts a light incoming with Brewster's angle into a gamma/2 phase difference. A polarization splitting film(104b) coated on a front and a read side of the glass(104a) reflects an S-polarization wave(102) and transmits a P-polarization wave(106). The transmitted P-polarization wave(106) has a gamma/2 phase difference as passing through a predetermined thickness of the glass(104a), and progresses, as having an S-polarization wave same with the reflected S-polarization wave(102).