baber/WOPTO huggingface dataset:
Patent KR-20000008366-A (KR)
Title: Integrated circuit package lead testing apparatus and method
Inventor: SONG JOO IN
IPC: G01B13/02
Filed: 1998-07-13
Abstract: PURPOSE: An integrated circuit package lead testing apparatus is provided to test leads of an integrated circuit package exactly. CONSTITUTION: The integrated circuit package lead testing apparatus comprises:a rail(251), wherein an integrated circuit package(271) is transferred on the rail; a stop device(227) for stopping the integrated circuit package on the rail; a guard cover(261) for blocking top and both sides of the rail in order for the package not to go out from the rail; a camera for checking an external appearance of leads of the package; a first control device(225) installed at one side of the rail, for closely sticking the integrated circuit package to the guard cover at the other side of the rail; a second control device(325) installed at the other side of the rail, for closely sticking the integrated circuit package to a guard cover at the one side of the rail.
Patent KR-20000008555-A (KR)
Title: Flame retardant thermoplastic resin composition
Inventor: LIM JONG CHEOL
IPC: C08L51/04
Filed: 1998-07-14
Abstract: PURPOSE: A composition comprising polycarbonate resin, rubber denatured graft copolymer, vinyl copolymer, specific phosphorous oligomer derived from bisphenol-A. and fluorinated polyolefin is provided which stress-crack resistance, heat stability and anti shocking property. CONSTITUTION: The composition comprises (A)45-95 wt. parts of thermoplastic carbonate resin,; 5-95 wt. parts of monomer mixture of (B)50-95 wt. parts of (B-1)(B-1.1) styrene, alpha-methylstyrene, halogen or methyl ring-substituted styrene, C1-C8 methacrylic acid ester, anhydrous malefic acid, C1-C4 alkyl or its mixture, and 5-50 wt. parts of (B-1.2) acrylonitrile, methacrylonitrile, C1-C8 methacrylic acid alkylester, C1-C8 methacrylic acid ester, anhydrous maleic acid, C1-C4 alkyl or phenyl N-substituted maleimide or its mixture; 5-95 wt. parts of monomer mixture of 1-50 wt. parts of butadiene rubber, acrylic rubber, ethylene/propylene rubber, styrene/butadiene rubber, acrylonitrile/butadiene rubber, isoprene rubber, terpolymer(EPDM) of ethylene-propylene-diene, polyorganosiloxane/polyalkyl(metha)acrylate rubber composite; (C)50-95 wt, parts of (C-1)styrene, alpha-methylstyrene,, ring-substituted styrene, C1-C8 methacrylic acid alkylester, C1-C8 methacrylic acid ester, or its mixture. The composition is useful as a computer housing and other office instruments
Patent KR-20000013889-A (KR)
Title: Analogue trunk testing device of full electronic switching system
Inventor: SON SUN SEOB
IPC: H04M3/24
Filed: 1998-08-14
Abstract: PURPOSE: An analogue trunk testing device of a full electronic switching system is provided to shorten a time for testing analogue trunk without matching with an analogue subscriber's PCM line. CONSTITUTION: A current supply and 2-line/4-line conversion loop hold detector(202) converts the current polarity of tip and ring and transmits the status information of a forward loop, a reverse loop, a tip wire ground, and a ring wire ground through a 2-line path. A call signal generator(201) supplies a ring voltage. A charging signal generator(206) generates a frequency charging signal. A DTMF generator(205) generates a DTMF signal. An A/D converter(203) converts the analogue signal received from the current supply and 2-line/4-line conversion loop hold detector to the digital signal. A DTMF receiver(204) receives the converted digital signal from the A/D converter and detects the DTMF signal. A processor(200) reads the status of the analogue trunk to decide the testing result, and controls each function block so as to test. Thereby, a forward loop, a reverse loop, a tip wire ground, a ring wire ground, a ring voltage, a frequency charging signal, and a dial pulse can be tested.
Patent KR-20000014932-A (KR)
Title: Device and method indicating the transmission time of a facsimile data
Inventor: KIM JIN-HYUNG
IPC: H04N1/00
Filed: 1998-08-26
Abstract: PURPOSE: A device and method which indicates the transmission time of fax data are provided to increase the convenience in using the facsimile as there is no need to wait and watch till the end of fax transmission by indicating the time used in transmission. CONSTITUTION: The device and method comprises a detecting part(182) which detects the size of the fax data and the transmission speed of the fax data needed in transmission; an operation part(183) which calculates the time needed in transmitting the fax data between the receiver and the sender; a storing part(184) which stores time used in transmitting the fax data to the receiver; and an indicating part(185) which indicates the used time to users according to the control signal of the controlling part(181).
Patent KR-19990036619-A (KR)
Title: 연마 패드의 유지장치 및 방법
IPC: B24B53/017
Filed: 1998-09-04
Abstract: 화학 기계적 연마(CMP) 공정에 있어서, 반도체 기판은 연마 슬러리의 층으로 덮힌 연마 패드에 대해 회전한다.  화학 기계적 연마 공정중에 글레이징 효과를 감소시키고, 패드의 작동 수명을 연장시키며, 일정한 연마 속도를 통해 균일한 평탄도를 달성하고 그리고 연마된 표면으로부터 스크래치 또는 기타의 결함을 최소화하기 위한 연마 패드의 유지장치를 개발하였다.  현재의 패드 조절 방법은 공정중에 발생되는 파편 및 입자를 제거하지 않고 단지 패드 표면을 조절하도록 설계되어 있다.  본 발명은 입자 및 파편을 제거함과 아울러 패드 표면을 효율적으로 조절한다.  연마 패드의 유지장치는 3가지의 주요 기능, 즉 입자 및 파편을 이완시키고, 연마 패드를 조절하며, 슬러리 및 조절 공정으로부터 발생되는 잔여의 입자 및 파편을 제거하는 기능을 수행한다.  이러한 3가지 기능은 강제 유체 스프레이와, 기계적 연마제 교반기(조절기)와, 진공에 의해 연달아 수행된다.  조절 하우징 조립체는 유지 기능을 수행하는 3가지 요소, 즉 a) 강제 유체 스프레이 조립체와, b) 기계적 연마제 플레이트와, c) 진공 부착 조립체를 지지한다.
Patent KR-19990029614-A (KR)
Title: 직물 처리 방법
IPC: C07F13/00
Filed: 1998-09-08
Abstract: 본 발명은 퍼옥사이드-함유 세정제를 함유하는 세정액으로 세정액 ℓ당 하기 화학식 1을 갖는 하나 이상의 화합물 0.5 내지 150㎎, 바람직하게는 1.5 내지 75㎎, 특히 7.5 내지 40㎎을 유입시킴을 포함하는, 세정액내 이동 염료의 재흡수 억제 방법을 제공한다. 
     화학식 1 
     
       
     
     상기식에서, 
     n은 1, 2 또는 3이고, 
     A는 음이온이고, 
     Y는 -(CH 2 ) m (여기서, m은 1 내지 8의 정수이다); -(CH 2 ) p -CH(R 1 )-(여기서, p는 1 내지 7의 정수이고 R 1 은 직쇄 또는 측쇄의 C 1 -C 4 -알킬, 바람직하게는 메틸이다); -CX=CX-[여기서, X는 시아노, 직쇄 또는 측쇄의 C 1 -C 8 -알킬 또는 디(직쇄 또는 측쇄의 C 1 -C 8 -알킬)-아미노이다]; -(CH 2 ) q -NR 1 -(CH 2 ) q -(여기서, R 1 은 상기 의미를 갖고 q는 1, 2, 3 또는 4이다); 또는 화학식 를 갖는 1,2-사이클로헥실렌 잔기이고, 
     R은 시아노; 할로겐; 하이드록시; OR 1 (여기서, R 1 은 상기 의미를 갖는다); CO 2 R 2 (여기서, R 2 는 수소 또는 직쇄 또는 측쇄의 C 1 -C 4 -알킬이다); 니트로; 직쇄 또는 측쇄의 C 1 -C 8 -알킬; 디-(C 1 -C 12 알킬)아미노; NR 3 R 4 (여기서, R 3 및 R 4 는 동일하거나 상이하고 각각은 직쇄 또는 측쇄의 C 1 -C 12 -알킬이다); 또는 -N + R 1 R 3 R 4 (여기서, R 1 , R 3 및 R 4 는 상기 의미를 갖는다)이다.
Patent KR-20000020475-A (KR)
Title: Device for supporting crankshaft of scroll fluid machine
Inventor: NO KI WON
IPC: F04C18/02
Filed: 1998-09-21
Abstract: PURPOSE: A device for supporting a crankshaft of a scroll fluid machine is provided to prevent the loss by an invalid unit and to reduce the costs without the invalid unit of a motor to make the magnetic force of the motor by lengthening the length of a rotator. CONSTITUTION: A compressing chamber(119) is formed by butting a rotating scroll(117) and a fixing scroll formed wraps(117A,118A) with an involutes curve. A coolant gas is compressed by rotating the rotating scroll with the rotation of a crankshaft installed in a rotator, and the rotating scroll supports the crankshaft to be able to rotate with journal bearing s(112A,112B) of a main frame(112) and a ball bearing (113A) of a sub frame.
Patent KR-19990083653-A (KR)
Title: 전기화학적 폐수처리방법 및 장치
IPC: C02F1/46
Filed: 1998-09-22
Abstract: 이 발명은 저전압의 저전류를 이용하여 오폐수를 전기분해한 후에 각종 첨가제를 투입하여 화학반응시킴으로써 유헤성분을 분리해내는 폐수처리장치을 제공하기 위한 것으로서, 그러한 폐수처리장치(100)는 오폐수를 전해시키는 전해부(150)와, 전해된 오폐수 속에 각종 첨가제를 투입하여 물리화학적으로 반응시키는 반응부(170)와, 반응후의 오폐수를 정적으로 유지하여 생성물을 응집시키는 응집부(180)를 포함하며, 전해시의 오폐수에는 전도율을 향상시켜 소모전력을 줄이고 유기물의 산화를 보조하기 위한 NaCl이 첨가되고, 전해과정에서는 오폐수가 에멀젼(유화액) 성상의 오폐수는 물과 유분으로 분리된다.  분리된 유분은 전극으로부터 용출된 알루미늄이온의 화합물인 수산화알루미늄에 의해 응집되어 수면 위로 부상하여 제거된다.  전해된 오폐수는 반응부(170)에서 각종 첨가제와 반응한 후에 응집부(180)에서 미립자상태로 현탁되어 있는 불용성 화합물들의 응집되어 제거된다.
Patent KR-20000020747-A (KR)
Title: Local word line driver
Inventor: JEONG DEOK JU
IPC: G11C11/34
Filed: 1998-09-23
Abstract: PURPOSE: A local word line driver reduces the number of transistors consisting of a circuit, reduces a chip area, and enhances an operation characteristic by reducing a word line enable time. CONSTITUTION: A local word line driver includes a block selection signal output part(32), a first word line driver(33), and a second word line driver(34). The block selection signal output part includes a Vbb generator(31) for generating Vbb signal having a value of -1 volt after receiving Vss(0 volt), and a block selection signal output part for generating a cell block selection signal(BS)(BSB) by Vbb signal and input address signal. The first word line driver uses a first block selection signal(BS0) generated from the block selection signal output part as a gate common input, and has a first PMOS transistor(MP1) and the first NMOS transistor(MN1). The second word line driver uses a second block selection signal(BS1) as a gate common input, and has a second PMOS transistor(MP2) and the second NMOS transistor(MN2). Thereby, the local word line driver reduces the number of transistors consisting of a circuit, reduces a chip area, and enhances an operation characteristic by reducing a word line enable time.
Patent KR-19990036920-A (KR)
Title: 오프셋된 가상의 광학 중심을 구비한 파노라마식 뷰잉 시스템
IPC: H04N5/262
Filed: 1998-10-02
Abstract: 각각의 카메라가 피라미드와 같은 다면체(polyhedron)의 상이한 반사 표면을 볼 수 있도록 위치된다. 이 결과, 각각의 카메라는 상기 피라미드 내에 위치하는 가상의 광학 중심을 가지게 된다. 상기 카메라는 카메라의 가상의 광학 중심이 서로 오프셋 되도록 위치된다. 상기 오프셋으로 인해 피라미드의 반사 표면의 에지로부터 수신되는 이미지 왜곡(image distortions)이 제거되는 블라인드 영역이 생성된다.
Patent KR-20000026402-A (KR)
Title: System and method for editing recorded music of cassette tape
Inventor: LEE HAK JOO
IPC: G11B27/024
Filed: 1998-10-20
Abstract: PURPOSE: A system for editing recorded music of a cassette tape is provided to edit the recorded music easily by detecting automatically information of playing time for the selected music and notifying the playing time added up to a user if a user selects the music to be recorded in A side or B side of the tape. CONSTITUTION: An A side editing key(11) selects an editing mode of the A side of a cassette tape. A B side editing key(12) selects an editing mode of a B side of the cassette tape. All sort of figure keys(13) selects the music to be recorded on the cassette tape. An information detecting unit(20) detects information of a playing time of a music selected through a figure keys by reading Table Of Contents(TOC) from a CD. A microcomputer(30) adds up a playing time by receiving each playing time of the A side or a B side music from the information detecting unit(20) if the editing mode of A side or B side mode selected. A displaying unit for playing time(44) displays the added playing time of the edited music of A side or B side by receiving from the microcomputer(30).
Patent KR-20000026715-A (KR)
Title: Lcd and manufacturing method thereof
Inventor: KIM JEOM JAE
IPC: G02F1/1333
Filed: 1998-10-22
Abstract: PURPOSE: An LCD and manufacturing method thereof is provided to prevent a mottle badness because of ini-uniform cell gap by etching a part of protecting film and forming two cell gaps in one pixel region. CONSTITUTION: A thin film transistor is formed on a first substrate(101) and has a gate electrode, a gate insulating film(105), a semiconductor layer, a source electrode, and a drain electrode. A protecting film(11) is formed on an entire first substrate of the thin film transistor(109) and is etched in a depression region(H) among a pixel region. A pixel electrode(113) is formed on the protecting film(11) and is connected to a drain electrode. A first orientation film(114) is formed on the entire first substrate(101). A color filter layer(116) is formed under a second substrate(102). A common electrode(118) is formed under the color filter layer(116) and is made of a transparent conductive material such as an ITO. A second orientation film(119) is formed under the common electrode(118). A liquid crystal layer(120) is formed between the first and second substrates(101,102). A spacer(122) uniformly maintains a cell gap which is a thickness of a liquid crystal.
Patent KR-19990007713-A (KR)
Title: 피혁지의 건조방법 및 그 장치
Filed: 1998-10-24
Abstract: 본 발명은 피혁지의 건조장치에 관한 것으로서, 더욱 상세하게는 히터의 열을 이용한 스팀에 의하여 피혁지의 습기를 제거하는 피혁지의 건조방법 및 그 장치에 관한 것으로서, 중앙처리장치의 제어에 따라 자동 이송되는 피혁지를 건조시키는 건조장치에 있어서, 전원의 공급에 따라 스팀을 발생시키는 스팀히터와, 상기 스팀히터의 일측에 배치되어 팬모터의 구동력에 연동되어 회전되면서 스팀히터에서 발생되는 스팀을 강제송풍시키기 위한 송풍팬과, 상기 송풍팬으로 강제송풍된 스팀에 의하여 건조된 피혁지의 습기를 외부로 배출하기 위한 배기팬을 갖는 배기관을 포함하여, 피혁지의 건조시간을 단축시킴은 물론 양질의 피혁지를 얻을 수 있도록 함과 동시에 단위시간당 많은 양의 피혁지를 건조시킬 수 있도록 한 것이다.
Patent KR-20000027107-A (KR)
Title: Expanding device for sizing middle shell of rotary compressor of air conditioner
Inventor: LEE YEONG JE
IPC: F04C29/00
Filed: 1998-10-27
Abstract: PURPOSE: An expanding device for sizing a middle shell is provided to prepare an expanding device more easily by composing jaws, a cone and a return spring, guiding by a slide key and acting of a cam and to make the expanding more precise by removing the shakiness of the jaws. CONSTITUTION: Shells(50,90) are expanded by inserting the shells to the outer face of jaws(210) at shrinking position, descending a connecting rod(201) by operating a reciprocating tool such as a fluid cylinder, descending a cone(220) and a divided cone(220') with a shaft(203) and moving each jaw while being guided by the inner faces of an upper supporting block(250) and a lower supporting block(240) at a supporting guide part(212) by the interaction of a slide inclined face(225) of the divided cone and a slide inclined face(215) of the jaws. And a side wall slide face(221) of a slide key(230) is guided by the side wall face of the slide key according to the movement in radial of the jaws so that shakiness of the jaws are removed and the jaws moves in radial more precisely. Thereby, the diameter expanding of the shells becomes precise.
Patent KR-20000028109-A (KR)
Title: Gas exhaust apparatus used for semiconductor fabricating equipment
Inventor: KIM KYEONG UN
IPC: H01L21/02
Filed: 1998-10-30
Abstract: PURPOSE: A gas exhaust apparatus is provided to prevent exhaust gas from being accumulated in an equipment as temperature falls. CONSTITUTION: A gas exhaust pipe(210) has a gas inlet(221) connected with a gas exhaust pipe(210) and a gas outlet(222) connected with a flexible tube(230). Chemical source gas is injected into an inner tube(30) through a gas inlet hole(61) placed on the side of a flange(60) for being diffused on the surface of a wafer(10), which is accumulated on a quartz boat(20). The rest residual gas is exhausted through a gas outlet port(62) to flow into the gas exhaust pipe and a pump(220). The flexible tube functions as a pipe for passing the gas discharged from the pump while connecting its end portion with the gas outlet of the pump and the other end portion with an inlet(241) of a silencer(240). An adiabatic layer(231) in the flexible tube is coated to prevent the exhaust gas from losing heat. Therefore, the gas exhaust pipe prevents the ammonium chloride generated in the process of forming a nitride film from being accumulated in the flexible tube.
Patent KR-19990044983-A (KR)
Title: 실효값의 빠른 계측을 얻을 수 있는 실효값 변환기
IPC: G01R19/02
Filed: 1998-11-04
Abstract: 주파수가 50 Hz 또는 60 Hz인 전력선 신호 실효값의 빠른 계측을 할 수 있는 실효값 변환기(converter)가 제공된다.  실효값 변환기에 도달한 전력선 주파수 신호의 디지털 샘플은 평균 회로에서 제곱되어 더해진다.  각 실효값 계측 주기 끝에, 평균값이 실효값 계산을 위한 제곱근 회로에 공급된다.  실효값 계측 주기는 초당 20개까지 실효값을 공급하는 전력선 신호 제곱값의 최소 정수 사이클(cycle)이 되도록, 60 Hz 주파수에 6 사이클 또는 50 Hz 주파수에 5 사이클, 50 ms (millisecond)가 선택된다.
Patent KR-20000032149-A (KR)
Title: Method of preventing water from overflowing in upward-type gas boiler
Inventor: MIN CHAN HUI
IPC: F24H1/00
Filed: 1998-11-13
Abstract: PURPOSE: A method is provided to prevent water from overflowing when the water in a pipe flows into a cistern by controlling a circulating pump and a three-way valve respectively. CONSTITUTION: Overflow of water in a gas boiler is prevented by the steps of: starting a gas boiler by turning on a three-way valve(50) in a certain time after turning on a circulating pump(6) if not in the low water level, or supplying water; and finishing driving the gas boiler by turning off the three-way valve if not in the low water level and turning off the circulating pump. Therefore, the overflow of water in the gas boiler is prevented by controlling the circulating pump and the three-way valve when initially starting and finishing the boiler.
Patent KR-19990014489-A (KR)
Title: 압축기용 밸브 플레이트의 제조방법 및 장치
IPC: B21K1/20
Filed: 1998-11-16
Abstract: 본 발명은, 밸브 플레이트를 프레싱을 통해 제조함에 있어서 밸브 플레이트의 평면도를 한정치 내로 맞춤으로서, 프레스 공정으로만 제작되는 저가의 밸브 플레이트를 공급하고, 밸브 플레이트의 대량 생산을 가능케 하며, 아울러, 밸브 플레이트를 단일의 금속판으로 제조하여 강도를 유지시킴으로서 압축기의 장기간 사용시에도 밸브 플레이트가 손상되는 것을 막을 수 있는 압축기용 밸브 플레이트의 제조방법 및 장치에 관한 것으로서, 그 방법 및 장치를 설명하면 다음과 같다. 
     공급되는 모재에 조립홀과 상하면에 유체안내 냉간단조부를 형성하고, 제품의 외곽을 절단하며, 흡입,배출 밸브홀과 냉매유입홀 및 리벳홀을 천공하는 형상 성형공정과; 상기 각 홀의 하면과 상면에 R따기를 형성하는 R따기 프레싱공정과; 상기 공정을 지나면서 금속판에 집중된 응력을 전체적으로 분산 시키기 위하여 원호형상으로 프레싱하는 풀림공정과; 상기 풀림공정을 통해 배출되는 밸브플레이트의 모재를 절단하는 커팅공정과; 절단된 모재의 상,하면을 평탄하게 프레싱하고, 상기 흡입,배출 밸브홀의 상,하면 주연부에 밸브시트를 형성하는 사이징 공정으로 이루어진 제조방법을 특징으로 한다. 
     또한, 상기 제조방법에 있어서, 금형의 일단 외측에 설치되어 조립홀을 천공하는 피어싱부와, 상,하부 금형의 사이에 장착되어 유체안내 냉간단조부를 형성하는 프레싱부와, 프레싱부의 일측에 설치되어 제품의 외곽을 절단하는 노칭부와, 노칭부를 통과한 모재에 각종 홀을 천공하는 펀칭수단과, 편칭수단(141)을 통해 형성된 홀의 상하부에 R따기를 형성하는 R따기 펀칭수단과, R따기 펀칭수단을 통과 한 모재를 원호형으로 형성하는 단조부와, 각 제품사이를 절단하는 절단부 및, 최종적으로 제품의 상하면을 눌러주는 사이징부가 순서적으로 구성된 장치를 특징으로 하는 것이다.
Patent KR-19990062639-A (KR)
Title: 칩형 박막 캐패시터 및 그 제조방법
IPC: H01G4/06
Filed: 1998-11-30
Abstract: 본 발명은 캐패시터의 내부전극과 외부전극의 접촉면적을 확대한 칩형 박막 캐패시터에 관한 것으로 이는 특히, 절연성 기판(210)의 상측에 형성되는 제1 및 제2 전극(240)(220)의 일측단부가 각각 기판의 외부로 노출토록 성막되고, 상기 전극(240)(220)의 일단부 상측면이 각각 외부로 노출될 수 있도록 식각에 의해 외부로 노출토록 하며, 상기 노출되는 제1 및 제2 외부전극 접속부(260)(270)에는 단자전극(280)이 형성되고, 그 위에 제1, 제2 외부전극(290)(300)이 성막된후, 제2 유전체층(250)의 상부에는 폴리이미드(poly mide)의 보호층(310)이 인쇄되는 것을 요지로 한다.
Patent KR-20000037861-A (KR)
Title: Adaptive type receiving device using mean square error minimizing method having restrictions
Inventor: KIM SEONG LAK
IPC: H04B1/7097
Filed: 1998-12-02
Abstract: PURPOSE: An adaptive type receiving device using a mean square error minimizing method having restrictions is provided to remarkably improve a performance of a receiving device, for which a tap coefficient in use for minimizing an MMSE is normally adopted by using an output signal of a adaptive filter. CONSTITUTION: An adaptive filter(110) filters a receiving signal and extracts a signal desired by a user through a predetermined tap coefficient. A channel estimator(120) estimates a channel by using the output signal of the adaptive filter(110) and predicts a potential component and an amplitude component of a channel of a specific user. A signal restoring unit(130) restores a signal transmitted from the specific user by using the signal filtered by the adaptive filter(110) and the channel estimated value of the channel estimator(120). A selector(140) selectively transmits an already known learning data and the output signal of the signal restoring unit(130). A multiplier(150) multiplies the signal selected by the selector(140) and the output signal of the channel estimator(120) to generate a reference signal. An adder(160) adds the reference signal transmitted from the multiplier(150) and the output signal of the adaptive filter(110), to output an error of a signal filtered by the adaptive filter(110). A tap coefficient adjusting unit(170) for varying a tap coefficient of the adaptive filter(110) according to the error computed by the adder(160).
Patent KR-20000038360-A (KR)
Title: Method for controlling multiple phase voltages and structure of frequency mixer using the same
Inventor: JEONG DEOK KYUN
IPC: H04B1/16
Filed: 1998-12-07
Abstract: PURPOSE: A method for controlling multiple phase voltages and a structure of a frequency mixer the same are provided to solve the problem the limit of a CMOS transistor in switching speed and faulty phase noise characteristic by mixing the received RF(Radio Frequency) signal with using multiple phase voltage control oscillation signal. CONSTITUTION: A signal generator having a second frequency, which is a low frequency, as oscillation frequency, generates a plurality of positive and negative multiple phase voltage control oscillation signal having a phase difference as much as predetermined amount. A frequency converter generates a first frequency signal by repeatedly switching in a clock cycle of the second frequency with inputting the multiple phase voltage control oscillation signal generated from the signal generator. A frequency mixer(302) multiplies the output signal of the frequency converter and the received RF signal.
Patent KR-20000039274-A (KR)
Title: Display device adjusting inclination according to user's view
Inventor: JIN SEONG GON
IPC: G06F3/14
Filed: 1998-12-11
Abstract: PURPOSE: A display device for adjusting an inclination is provided to supply a displaying monitor which the inclination is automatically adjusted according to an user's view. CONSTITUTION: A display device for adjusting an inclination comprises a plurality of sensors(35A-35D)(36A-36D), an interface circuit(40), a data processor(41), a power supply(44,45), and a screen inclination controller(43). A plurality of sensors(35A-35D)(36A-36D) detect the user's view. The interface circuit(40) interfaces an input of the sensors(35A-35D)(36A-36D). The data processor(41) processes a data to adjust the inclination by receiving a sensor signal inputted through the interface circuit(40). The inclination controller(42) outputs a screen adjusting information to a host by being supplied a data to adjust the screen inclination from a data processor. The power supply(44,45) adjust the inclination of the screen by involving the monitor up/down or right/left. The screen inclination controller(43) drives the power supply(44,45) by being supplied the data to adjust the inclination of the screen from the data processer. The monitor displays an image on screen by being supplied a displaying information from the host.
Patent KR-20000043039-A (KR)
Title: Method for forming contact hole of semiconductor device
Inventor: SEO IL SEOK
IPC: H01L21/28
Filed: 1998-12-28
Abstract: PURPOSE: A method for forming a contact hole of a semiconductor device is provided to prevent an electrical short between conductive members due to misalignment of masks in a formation step of the contact hole. CONSTITUTION: A conductive layer(2) and a mask insulating layer(3) of nitride are successively formed on a lower layer(1) and then selectively etched to form a conductive pattern and a first contact hole. Next, a nitride layer(4) is deposited over all surfaces to wholly fill gaps in the conductive pattern. The nitride layer(4) is then anisotropically etched so that a nitride spacer(4A) remains in the first contact hole. Next, a conductive layer is deposited to form a plug(5) in the first contact hole. An interlayer dielectric(6) is then formed on an entire top surface and etched to expose the plug(5) by using a photoresist pattern formed on the interlayer dielectric(6). Therefore, a second contact hole(8) is formed in the interlayer dielectric(6). If a mask for forming the photoresist pattern is misaligned, the second contact hole(8) is self-aligned owing to high selectivity to the mask insulating layer(3) and the nitride spacer(4A).
Patent KR-20000044607-A (KR)
Title: Method for manufacturing semiconductor element
Inventor: KIM YOUNG JUNG
IPC: H01L27/108
Filed: 1998-12-30
Abstract: PURPOSE: A method for fabricating a semiconductor element is provided to achieve a heat stability when a word line including a metal element forming process is performed and to ensure an etching margin and a photo process margin when a storage node contact forming process. CONSTITUTION: An oxidized gate film(12) is firstly formed on a substrate(10). Then, a polysilicon film(13) is formed on the oxidized gate film(12). The polysilicon film(13) is selectively etched by using a word line mask. After etching the polysilicon film(13), an LCD oxidation process is performed. A conductive film including a metal element is formed through a damascene process so that heat stability is attained when a word line is formed. While the word line forming process is being carried out, a bit line forming process and a storage node electrode forming process are partially performed.