baber/WOPTO huggingface dataset:
Patent KR-20000049155-A (KR)
Title: Display panel with compensation by holographic birefringent films
Inventor: BIGNOLLES LAURENT
IPC: G02F1/13363
Filed: 1997-10-10
Abstract: PURPOSE: A display panel with compensation by holographic birefringent films is provided to see the panel with a satisfactory contrast in visual field angle which is away from the normal. CONSTITUTION: A display panel has a film consisting of oblique interference pattern(A2 or A4) at both sides of a liquid cell and polariscope is dispositioned at both sides of this assembly. Preferably oblique interference pattern has an angle of 45 degrees to the plane of a film and modulation direction inclined to the rubbing direction of a cell wall. The choice of thickness of a compensation film is determined by a delay calculation from a selected liquid model. In case of a normal fault having determined tilt angle, a phase delay induced between two orthogonal polarized light is the same with a film thickness which multiplied with difference between refractive index that appeared along two orthogonal polarized light, and a light is passing. These refractive indexes are calculable with the creation of a refractive index ellipsoid that has an axis of n0 and ne. A phase difference calculation is performed in case of normal incidence and preferable incidence angle that has a maximum contrast. And then by using antiphase difference, film thickness is calculated in order to make the best compensation regarding these phase difference.
Patent KR-20000052779-A (KR)
Title: Heteroaryl succinamides and their use as metalloproteinase inhibitors
Inventor: BENDER STEVEN L
IPC: A61K31/443
Filed: 1997-10-06
Abstract: PURPOSE: Provided is compound of the formula I which is useful for inhibiting the activity of a metalloproteinase by contacting the metalloproteinase with an effective amount of the inventive compounds. CONSTITUTION: Compounds of the formula I is represented: wherein X is a single bond or a straight or branched, saturated or unsaturated chain containing 1 to 6 carbon atoms, wherein one or more of the carbon atoms are optionally independently replaced with O or S, and wherein one or more of the hydrogen atoms are optionally replaced with F; Y is a single bond, --CH(OH)--, or --C(O)--; R1 is H, an alkyl group, an aryl group, a heteroaryl group, a cycloalkyl group, or a heterocycloalkyl group; R2 is H, an alkyl group, an aryl group, a heteroaryl group, a cycloalkyl group, a heterocycloalkyl group, or C(O)R10, wherein R10 is H, an O-alkyl group, an alkyl group, an aryl group, a heteroaryl group, a cycloalkyl group, a heterocycloalkyl group, an O-aryl group, an O-alkyl group, or NR11 R12 ; wherein R11 is H, an alkyl group, an O-alkyl group, an aryl group, a heteroaryl group, a cycloalkyl group, or a heterocycloalkyl group, and wherein R12 is H, an alkyl group, an aryl group, a heteroaryl group, a cycloalkyl group, or a heterocycloalkyl group, or wherein R11 and R12 form, together with the nitrogen to which they are attached, a heteroaryl group or a heterocycloalkyl group.
Patent KR-20000070337-A (KR)
IPC: B32B27/32
Filed: 1998-01-20
Abstract: A printed film includes a substrate film with a surface polymeric layer that includes a thermoplastic polymer having a melting point of no more than about 130 DEG  C. and, on a surface of the film, a printed image in the form of a polymeric film. The substrate film can be printed without chemically and/or oxidatively priming the surface to be printed and exhibits superior retention of the image after undergoing heat treatment.
Patent KR-20010012636-A (KR)
Title: 이방성 유전 코팅을 포함하는 지문 센서 및 그 제조방법
IPC: A61B5/053
Filed: 1998-05-06
Abstract: 지문 센서는 집적회로, 및 전계 감지 전극의 어레이를 한정하는 도전층을 포함하는 z축 이방성 유전재료의 보호 커버링을 포함한다.  z축 이방성 유전층은 전계 감지 전극의 각각에 전계를 포커싱한다.  유전성 커버링은 비교적 얇으나, 재료의 z축 이방성 때문에 유전성 커버링을 통해 전파되는 전계의 디포커싱을 초래하지 않는다.  z축 이방성 유전층은 경화된 매트릭스로 복수의 지향성 유전 입자에 의해 제공된다.  z축 이방성 유전층은 폴리이미드 매트릭스로 배륨 티탄산염을 포함한다.  도전층은 집적회로와 용량성 결합을 허용하기 위한 복수의 용량성 결합 패드를 포함한다.
Patent KR-20010073696-A (KR)
Title: Method for driving plasma display panel
Inventor: CHOI BYEONG HWA
IPC: G09G3/296
Filed: 2000-01-19
Abstract: PURPOSE: A method of driving a plasma display panel is provided which increases the quantity of movement of wall charges to improve the effect of reset discharge, to thereby raise addressing accuracy. CONSTITUTION: Charge walls are formed in discharge cells selected from discharge cells of a plasma display panel according to input video data, and display discharge pulses are periodically applied to electrode lines of the plasma display panel in order to create display discharge in the discharge cells in which the wall charges are formed. The width of the finally applied pulse among the display discharge pulses is narrower than those of other display discharge pulses. The voltage of the final pulse is gradually increased. The final pulse has a sawtooth waveform. The final pulse is generated according to a resistor and discharge of a capacitor.
Patent KR-20000057930-A (KR)
Inventor: ROBERTROZ
IPC: B24D7/10
Filed: 2000-02-03
Abstract: PURPOSE: A metal cutter knife grinder is provided to grind a metal cutter knife rapidly and effectively. CONSTITUTION: A metal cutter knife grinder of a cup shape comprises; a grinding ring (4c) formed on an edge of a cup; a pipe (5a) to supply cooling and lubricating mediums; an inlet located in a radius of a grinding ring (4c); an outlet located on an area of a grinding ring (4c) to supply above mediums. In a device for grinding knifes or wear plates of a metal cutter, an inlet of a medium supply channel is placed on outward of the center of a device toward a radius on any occasions, hereby residual substances move in a short channel after cutting and are removed rapidly. Also this device is suitable to grind a relief angle.
Patent KR-20000024374-A (KR)
Inventor: JUNG JI HAN
IPC: A47B96/20
Filed: 2000-02-10
Abstract: PURPOSE: Furniture panels with a carbonized layer on the surface are provided, which are good for removing the odor and germs with a charcoal, and has elegant appearance with distinct grain of panel. CONSTITUTION: A furniture panel is prepared by polishing the surface of a panel(10) with sandpaper or planer, burning the surface of the panel(10) which forms a carbonized layer(12), making the surface smooth with sandpaper, and finishing with transparent paint to prevent the carbonized layer(12) from being taken off.
Patent KR-20010084076-A (KR)
Title: The structure for choking down higher harmonics in magnetron
Inventor: LEE JONG SU
IPC: H01J23/12
Filed: 2000-02-23
Abstract: PURPOSE: An apparatus is provided to effectively prevent harmonic wave leakage by allowing a 1/4 wavelength choke to be easily installed to the high frequency output unit. CONSTITUTION: An apparatus comprises a cylindrical anode body(51) having a vane(52) and a strap(53) mounted inside of the anode body, and which forms a resonance circuit; a transmitting antenna(56) connected to the vane, and which transmits microwave to the outside; a dome-shaped ceramic cap(57) covering the transmitting antenna; a metallic seal member(60) connected between the ceramic cap and the anode body; a metallic deposition member(65) deposited at the inner surface of the ceramic cap adjacent to the metallic seal member; and a 1/4 wavelength choke(70) mounted to either of the metallic seal member of the metallic deposition member so as to suppress harmonic waves.
Patent KR-20010086515-A (KR)
Title: System for recording a driving history
Inventor: KIM HO SIK
IPC: G07C5/08
Filed: 2000-03-02
Abstract: PURPOSE: A driving recording system for an automobile is provided which stores data recorded during switching off of starting or accidents in a flash memory and reads the vehicle driving record if necessary while always recording the connection elements by controlling various connection elements controlled on an ECU (Engine Control Unit) of vehicles with RAM instead of the ECU. CONSTITUTION: The driving recording system for an automobile comprises a Micom (3) by which controlled components (20) are controlled, and which records the controlled states in a RAM for driving recording (7); a flash memory for driving recording (9) storing the received data by receiving data stored in the RAM for driving recording (7) during switching off of a starting key or occurrence of vehicle accidents; and an interface IC (11) judging the driving recording by reading varieties of variables contained in the flash memory (9) in which data of driving recording are stored after connecting PC or HI-SCAN to K-LINE.
Patent KR-20000076891-A (KR)
Title: 박막형성장치 및 박막형성방법
IPC: C23C16/455
Filed: 2000-03-17
Abstract: 성막속도의 변동을 저감하여 안정한 막두께의 박막을 형성가능한 본 발명의 박막형성장치는, 소정압력의 조압가스를 비성막시에도 반응실내에 공급하여 반응실내의 가스압을 일정하게 유지함으로써, RF전극이나 반응실의 내벽의 온도가 상승하여 성막속도가 저하하는 것을 방지할 수 있다.  이에 따라, 기판에 성장되는 막의 막두께를 일정의 막두께로 제어할 수 있다.  또, 조압가스의 온도를 원료가스의 온도와 대체로 같은 온도로 가열함으로써, 반응실내의 가스의 압력의 변동이 억제되어 반응실의 내벽이나 RF전극의 온도가 일정하게 유지됨으로써 반응실의 내벽이나 RF전극 표면에서의 막성장속도가 일정하게 유지되기 때문에, 기판 표면에 실질적으로 공급되는 원료가스의 양이 일정하게 유지된다.  이에 따라, 기판의 표면에서의 막성장속도를 일정하게 유지할 수 있다.
Patent KR-20010094073-A (KR)
Title: Defense board of flowing mud, used by recycled wastes(thermoplastic materials)
Inventor: JU HWAN SU
IPC: B09B3/00
Filed: 2000-04-04
Abstract: PURPOSE: A braced wall using recycled waste(thermoplastic plastic) is provided, which can be used under any circumstances by fixing braced wall correctly to distances of supporting part as a fixed type or an adjusting type. The braced wall of the present invention is easier to use than the existing wooden wall and guarantee effective safety work at site. CONSTITUTION: The braced wall comprises the parts of two supporting parts(1) set at both sides for receiving main body(4) of braced wall; and horizontal braced wall(4) that has two ends of uneven part(2) made of jaw(3) for being inserted into the groove of the supporting part(1), the wall having empty space formed in it for reducing the weight itself.
Patent KR-20000063168-A (KR)
Inventor: KIM HYEON HO
IPC: G06K7/00
Filed: 2000-04-06
Abstract: PURPOSE: An OMR card reading and stamping apparatus is provided to ensure easy maintenance and automatic operation thereof by applying a number of gap maintaining rollers and 2 stage opening/closing type bodies. CONSTITUTION: First upper frame(37) and second upper frame(39) are detachably coupled as opposed by locking device on a base frame(36). A drive system transmits a rotational force of a drive motor(2) to each of feed rollers(12-16) via first transmission belt(V2) and second transmission belt(V3) thereby transporting an OMR card. A stamping unit pivots a ticket printing head(33) in response of the operation of a solenoid(3) to print a brand on a ticket. Branch means is pivoted about a hinge(64) by a compression spring(26) so that the stamped OMR card can be selectively exhausted via one of first outlet port(28) and second outlet port(35).
Patent KR-20000077100-A (KR)
Title: 씨이엘피 스피치 부호화를 위한 성형 고정 코드북 탐색 방법
IPC: H04B14/04
Filed: 2000-04-27
Abstract: 본 발명에 따라, 고정 코드북의 엔트리는 처리되고 있는 입력 신호에 맞추어지기 때문에 고정 코드북 응답은 보코더의 입력 신호를 보다 잘 특성화시킬 수 있다.  균일하게 분포된 랜덤 노이즈 신호는 송신하는 보코더에 저장된다.  송신하는 보코더에 의해 부호화하는 동안, 노이즈 신호는 가중 필터 및 피치 첨예화 필터에 의해 성형되고, 이들은 선형 예측 부호화, 부호화되고 있는 입력 신호의 피치 및 이득 특성에 의해 제어된 상태에 있다.  성형 노이즈 신호는 주어진 스파시티(sparcity)를 가진 펄스열로 도달하도록 임계 필터를 통해 통과된다.  고정 코드북 응답은 입력 신호의 잔류 신호와 가장 잘 정합되는 펄스열의 부분으로서 선택된다.  펄스열에 따른 부분의 인덱스된 위치는 비트 프레임에 포함된 고정 코드북 비트로서 지정된다.  동일한 랜덤 노이즈 신호는 수신하는 보코더에 저장된다.  선형 예측 부호화, 피치 및 피치 이득 특성은 비트 프레임의 일부이며, 다시 동일한 펄스열를 내도록 사용된다.  비트 프레임의 고정 코드북 비트는 가장 잘 정합되는 부분으로 펄스열 및 그에 따른 비트 프레임에 대한 고정 코드북 응답을 인덱스하기 위해 사용된다.
Patent KR-20000049892-A (KR)
Inventor: CHEN BONG SU
Filed: 2000-05-04
Abstract: PURPOSE: A method for serving auctions via Internet is provided to participate the auctions in common, while maintaining prices which buyers desire to buy products, and to buy services of desired prices, by guiding price competition of sellers. CONSTITUTION: A method for serving auctions via Internet contains processes. The first process is to receive requests from buyers via the Internet during a regular buying period, and to display each buying condition. The second process is, if ending the buying period, to receive requests related to the buyers' desires, from sellers via the Internet, during a regular auction period, and to display each selling conditions. The third process is, if ending the auction period, to knock down a lowest price between the seller representing the lowest price and the buyer representing a price over the lowest price.
Patent KR-20010007056-A (KR)
Inventor: MORI MASATOSHI
IPC: C08K3/00
Filed: 2000-05-09
Abstract: PURPOSE: To obtain a paint for heat absorbing film which forms a heat absorbing film having satisfactory adhesivity to conductive reflection film, and as the result suppressing color blur and difference of color purity and preventing crack and separation of the film from a coating surface and a heat absorbing film and a color cathode-ray tube obtained from the paint. CONSTITUTION: This paint is used for heat absorbing film formed on a conductive reflection film formed on a fluorescent screen 11 installed on a panel 10 in a color cathode-ray tube 1. The paint comprises a black pigment having 10-200 nm of particle size and a compound or a hydrolyzate therefrom expressed by Si(OR1)nR2m (n+m=4, n is 1-4, m is 0-3, R1 and R2 are each an alkyl, alkenyl or aryl group).
Patent KR-20010103507-A (KR)
Inventor: JUNG DAE GYUN
Filed: 2000-05-10
Abstract: 본 발명은 인터넷을 통해 서비스되는 웹사이트의 회원에 대해 그 회원 정보를 주기적으로 갱신하여 최신의 정보를 유지하게 함으로써 웹사이트의 회원 관리를 효과적이고 실효적으로 할 수 있다. 또한, 회원의 활동과 갱신 질문에 대한 응답에 대해 보너스 점수를 주고 또한 그룹별로 합산해서 보너스 점수를 사용하도록 함으로써 회원들의 웹사이트 활동과 갱신 질문에 대한 응답을 유도하게 한다.
Patent KR-20010049385-A (KR)
Inventor: DEN RIO
IPC: F25J3/04
Filed: 2000-05-23
Abstract: PURPOSE: To provide a method for separating air capable of supplying high pressure nitrogen gas and oxygen gas used, for example, for an IGCC facility with a low power cost by utilizing a cold energy of an LNG, and an air separating facility. CONSTITUTION: In the air separating facility comprising heat exchangers 11, 20 for utilizing liquefied natural gas as a cold energy source, and a low temperature fractionating apparatus 10 for separating the air by guiding preliminarily refined material air to externally supply product gas obtained by the apparatus 10, a recycling route for guiding a heating medium cooled and liquefied by the natural gas through the exchanger 20 to the exchanger 11 by a pump 21 and then again guiding the medium to the exchanger 20 is provided, the product gas is guided to the exchanger 11, cooled by the medium, then compressed by a compressor 12, and then warmed by a heater 13 to a supplying high pressure gas.
Patent KR-20000054146-A (KR)
Inventor: KIM UNG UK
IPC: G06Q30/00
Filed: 2000-05-24
Abstract: PURPOSE: A method for supplying cyber money to users by an internet provider is provided, so that the users can call using numbers stored as identifications(IDs) in a cyber card designating the cyber money when the users perform advertisement performing files, by making the files having the cyber money to transmit the files to user terminals, and to supply toll-free calls on condition of the users watching advertisements by displaying advertising screens while the users call and completing the advertising screens as the users hang up phones. CONSTITUTION: A method for supplying cyber money to users by an internet provider comprises the steps of: making the internet provider make a file composed of advertisements, user identifications(IDs), and the cyber money in a server, to publicize the advertisements and sell products to customers, and making the internet provider transmit the file through on-line; making a customer download the file in a computer or a terminal to store the file in a storage; if the customer uses services of the internet provider, displaying the advertisements on a computer screen or a terminal screen; and supplying a toll-free call to the customer on condition of the customer watching the advertisements.
Patent KR-20010108785-A (KR)
Inventor: LEE GYU B K
Filed: 2000-05-31
Abstract: 본 발명은 컴퓨터 본체가 안치되도록 본체수납부가 형성되고, 상판에 모니터가 상하로 관통 가능하도록 관통구멍이 형성되며, 상기 상판 하부에 키보드를 올려놓기 위한 키보드트레이가 전후로 이동 가능하게 구비되는 책상(100)과; 상기 책상의 후방 하부에 리프트가 상하로 움직이도록 장치되고, 상기 키보드트레이의 인출과 수납에 의해 상기 리프트의 상승과 하강이 전기적으로 제어되도록 되는 승강장치(200)와; 상기 승강장치의 리프트 상부에 지지되어 상기 책상 상판의 관통구멍을 통해 상부로 인출되거나 하부로 수납되도록 되며 모니터가 안치되도록 전면이 개방되게 형성되는 모니터하우징(300)으로 구성되어, 키보드트레이(150)를 인출하면 구동모터(230)에 정방향 전원을 인가하여 구동모터(230)가 정방향으로 회전되도록 하고, 키보드(150)를 수납시키면 구동모터(230)에 역방향 구동 전원을 인가시켜 구동모터(230)가 역방향으로 회전되도록 하며, 구동모터(230)의 회전방향에 따라 리프트(220)가 상승하거나 하강하여 리프트(220)에 의해 모니터(2)가 안치되는 모니터하우징(300)이 상판(110)의 상부로 인출되거나 수납되도록 하는 다용도 책상이다.
Patent KR-20010014992-A (KR)
Inventor: HIRAIRI KOUJI
IPC: G06F7/537
Filed: 2000-06-03
Abstract: PURPOSE: To reduce the circuit scale of the quotient/remainder discriminating part of retracting divider for high-order radix by determining a quotient by performing bit matching corresponding to the compared results of a three-input adder/subtracter, a three-input comparator and second and first comparators. CONSTITUTION: A quotient/remainder discriminating part 213 is composed of a shifter 310 as a multiple generating means, an N-digit comparator 311 for B=<R, an (N+1)-digit comparator 312 for 2B=<R, an (N+1)-digit three-input comparator 313 for 3B=<R, two-digit 2:1 selectors (first to third selectors) 314-316 for quotient discrimination, (N+1)-digit 2:1 selectors (fourth and fifth selectors) 317 and 318 for (y) and (z), an (N+1)-digit three-input adder/subtracter 319 for finding a new remainder Re and bit matching parts 320 and 321. In the three-input adder/subtracter 319, the new remainder Re is found by parallel performing the compound addition/subtraction of {R-(y+z)} with one time of carry propagation. Next, in the matching parts 320 and 321, a quotient Q is determined by performing bit matching corresponding to the compared result of the three-input comparator 313 or the like.
Patent KR-20010110592-A (KR)
Inventor: SHIN YONG
Filed: 2000-06-07
Abstract: 본 발명은 
     규석(Silicate, 순도 99.9% 300멧쉬 분말)             55∼68중량부 
     무수탄산나트륨(Soda ash, 식품첨가 공인)             7∼13중량부 
     피로인산나트륨(Sodium Pyrophosphate 식품첨가공인)   5∼12중량부 
     트리포리나트륨(Sodium Tripoly)                      3∼ 5중량부 
     헥사메타인산나트륨(Sodium hexametaphosphate)        1∼ 2중량부 
     를 혼합하고 용융로에서 용융점 이상의 온도에서 24시간 유지하여 용해시키고, 이를 크리스탈형태로 성형 및 냉각하여 제조된 금속관의 청정제 및 그 제조방법에 관한 것이며, 이 금속관의 청관제는 강력한 방청성능을 가진다.
Patent KR-20010111841-A (KR)
Inventor: CHOO GYO SEOP
IPC: G02F1/1362
Filed: 2000-06-13
Abstract: 본 발명은 액정표시장치에 관한 것이며, 특히 반사투과형 액정표시장치에 관한 것으로, 화소영역 상에 형성되는 반사전극과 투과전극이 하나의 드레인 콘택홀을 통해 접촉하는 구조로 형성하되, 상기 드레인 콘택홀의 접촉면적을 크게하여 상기 투명전극을 드레인 콘택홀의 일부와 접촉하도록 하고, 상기 반사전극은 상기 투명전극과 접촉하지 않은 나머지 드레인 콘택홀에 접촉하는 구조로 형성한다. 
     이와 같은 구조는 상기 드레인전극의 콘택저항을 낮추어 박막트랜지스터의 동작특성을 향상시키는 효과가 있고, 또한 동일한 드레인 콘택홀을 통해 상기 투과전극과 반사전극이 상기 드레인전극과 각각 접촉하는 구조이므로 별도의 드레인 콘택홀을 형성하기 위한 사진식각 공정(photo-lithography processing)을 생략할 수 있으므로, 공정을 단순화 할 수 있어 제품의 수율을 향상시키는 효과가 있다.
Patent KR-20010029804-A (KR)
Title: Temperature compensated bias network for a power amplifier and method of operation
Inventor: AFEL MARK J
IPC: H03F1/30
Filed: 2000-06-15
Abstract: PURPOSE: A bias network for compensating temperature of a power amplifier and a method for operation thereof are provided to supply a method for the bias of an output power transistor compensating the change of temperature of a RF amplifier. CONSTITUTION: A bias network for compensating temperature of a power amplifier and a method for operation thereof include a voltage reference circuit(310), a temperature sensor(315), a temperature sensor(315), a differential operation amplifier(OA, 320), a unit gain OA(320), the resistance(R1, 330), the resistance(R2, 325), a differential OA(305), a LDMOS FET(301) and a RF connection capacitor(345). The differential operation amplifier(OA, 320) receives the first signal from the voltage reference circuit(310) and the second control signal from the temperature sensor(315). The output of the temperature sensor(315) is buffered by the reverse unit gain OA(320). The output of the unit gain OA(320) is controlled by the gain elements decided by the resistance(R1, 330) and the resistance(R2, 325). The output of the differential OA(305) is controlled by the voltage contributor. The RF input signal(RF IN) is supplied to the gate of LDMOS FET(301) by the RF connection capacitor(345).
Patent KR-20020000055-A (KR)
Title: Anchor Bolt for Supporting Bridge-Bearing and Setting Method thereof
Inventor: OH MIN SU
IPC: E01D19/04
Filed: 2000-06-21
Abstract: PURPOSE: An installation method of a bridge bearing anchor bolt is provided to install exactly by reducing the length of a bolt, enlarging pull-out resistance and decreasing construction errors. CONSTITUTION: An installation method of a bridge bearing anchor bolt, composed of a rod(6) having screw thread and a plate(7) coupled to the screw thread of the rod(6), comprises the steps of: fixing a sheath tube for forming a bolt hole(4) on every location for installing an anchor bolt(1) on the top of a pier; placing a pier(3); forming a bolt hole(4) by removing the sheath tube; inserting an anchor bolt(1) to the bolt hole(4) and adjusting the plate(7) to fit the inserted anchor bolt(1) exactly; and filling up in the bolt hole(4) with mortar.
Patent KR-20020001245-A (KR)
Title: Tire having symmetrical tread pattern
Inventor: LEE JEONG HAK
IPC: B60C11/00
Filed: 2000-06-27
Abstract: PURPOSE: A tire having symmetric tread pattern is provided to achieve an improved wet traction and steering stability against hydro-planing through an improved draining performance of the tire. CONSTITUTION: A tread width(A) has a main vertical groove(1) formed at the center of the tread, and a horizontal groove(2) formed in a symmetric manner centering from the main vertical groove, wherein the horizontal groove forms a tilt angle(theta 1) of 20 to 30 degrees in the vehicle travel direction with respect to the circumferential direction. The tread width falls within the range of 80 to 90 percent of a tire width(A+2B), and a width(B) of each left and right shoulder falls within the range of 5 to 20 percent of the tread width. A tilt angle formed by the circumferential surface of the main vertical groove and the plane surface adjacent to the circumferential surface falls within the range of 5 to 15 degrees. The main vertical groove has a width(C) falling within the range of 5 to 10 percent of the tread width. A horizontal groove boundary line(2b) formed in the side opposite to the vehicle travel direction has a radius of curvature(Rb) falling within the range of (A+2B)/2-30 to (A+2B)/2-35, and a horizontal groove boundary line(2a) formed in the vehicle travel direction has a radius of curvature(Ra) falling within the range of Rb+5 to Rb+10. The width of the horizontal groove gradually increases as it goes from the main vertical groove toward the shoulder portion. A pitch(G) between horizontal grooves has a minimum value of 15 to 20 percent of the thread width and maximum value falling within the range of 1.25 to 1.30 times larger than the minimum value of the pitch. The horizontal groove has a width(H) falling within the range of 20 to 30 percent of the pitch between horizontal grooves.
Patent KR-20020002000-A (KR)
Title: A method for forming a capacitor of a semiconductor device
Inventor: SHIN HYEON SANG
IPC: H01L21/8242
Filed: 2000-06-29
Abstract: PURPOSE: A method for manufacturing a capacitor of a semiconductor device is provided to guarantee desired capacitance, by forming and patterning a Ti-based material as a hard mask layer on an electrode material having a Pt thin film and by easily eliminating only the Ti-based material as the hard mask layer. CONSTITUTION: A lower insulation layer(33) having a storage electrode contact plug(37) is formed on a semiconductor substrate(31). The Pt thin film(39) as a conductive material coupled to the contact plug is formed on the resultant structure. The Ti-based material as the hard mask layer is stacked on the Pt thin film. The hard mask layer and the Pt thin film are patterned by a photolithography process using a storage electrode mask. The hard mask layer is eliminated.