baber/WOPTO huggingface dataset:
Patent KR-20000014979-A (KR)
Title: Method for fabricating nitride compound semiconductor substrate
Inventor: KIM SUN TAE
IPC: H01L21/22
Filed: 1998-08-26
Abstract: PURPOSE: The method prevents the deterioration of the operation characteristics of an electronic device by reducing the defect such as a crack. CONSTITUTION: The method comprises the processes of: forming a rugged surface(33) on a top surface of a fused quartz substrate(31); forming a buffer layer comprising a nitride compound semiconductor on the surface; crystal-growing a nitride compound semiconductor layer(35) with HVPE(Hydride Vapor Phase Epitaxy) method on the surface where the rugged surface are formed; wet-etching the fused quartz substrate selectively so that the nitride compound semiconductor layer remains; and forming a substrate(37) by polishing the top surface and the bottom surface of the nitride compound semiconductor layer.
Patent KR-19990066761-A (KR)
Title: 비접촉 ic 카드 인식 시스템 및 인식 방법
IPC: G06K19/07
Filed: 1998-09-15
Abstract: 비접촉 IC 카드 인식 시스템은 간략한 구성으로써 응답 신호들의 충돌을 회피한다.  상기 시스템에서 비접촉 IC 카드는 기록기/판독기에 의한 제1 폴링 시도에 대하여 소정의 시간 슬롯에 응답 신호를 즉시 전송하는 제1 전송기 및 기록기/판독기에 의한 후속 폴링 시도에 응답하여 소정 개수의 후속 시간 슬롯들로부터 무작위 시간 슬롯에 응답 신호를 전송하는 제2 전송기를 구비한다.  상기 시스템에서 기록기/판독기는 제1 폴링 시도의 실행 동안 소정의 시간 슬롯에 비접촉 IC 카드로부터 응답 신호의 복귀를 기다리며, 후속 폴링 시도들의 실행 동안 무작위로 선택된 시간 슬롯에 비접촉 IC 카드로부터 응답 신호의 복귀를 기다리는 폴링 유닛을 구비한다.
Patent KR-20000020422-A (KR)
Title: Cleaning device and method for surface of aluminium wire to reduce corona
Inventor: LEE DONG IL
IPC: H01B13/00
Filed: 1998-09-21
Abstract: PURPOSE: A method for cleaning the surface of aluminum wire is provided to reduce corona which brings about electronic obstacle. CONSTITUTION: A cleaning method for cleaning the surface of aluminum wire follows the steps in order: First of all, high pressure clean water is sprayed to the aluminum wire from all quarters to get rid of the oil on the wire by a first spray device: step 2 after high pressure air sprayed to the wire from all quarters to remove dust on the wire by the first air wiper: step 1. And then, if step 3: the whole surface of the wire is wiped at multiple angles by brushes, step 4: high pressure clean water is sprayed to the aluminum wire at multiple angles to get rid of the residual oil attached to the wire by the second spray device, and step 5: high pressure air sprayed to the wire at multiple angles to dry the wire by the second air wiper are done in order, the oil on the surface of the wire is removed as much as possible.
Patent KR-20000020636-A (KR)
Title: Method for adjusting parameter value of camera in usb camera production line
Inventor: PARK HEUNG YUL
IPC: G03B43/00
Filed: 1998-09-22
Abstract: PURPOSE: A method for adjusting pa RAMeter value of camera in USB camera production line is provided to decrease the cost of jig interface inserted in USB(Universal Serial Bus) camera by performing the jig interface and a jig dedicated program at the same time. CONSTITUTION: It is judged as to whether a universal serial bus is connected to a camera by suing a USB(Universal Serial Bus) protocol. An error message is outputted on a screen when the universal serial bus is dis connected to the camera by using the USB protocol. A jig program is initialized related to a USB camera when the universal serial bus is dis connected to the camera by suing the USB protocol. A pa RAMeter adjusting value which a user wants is applied and data received from the USB camera is viewed as a numerical and quantitative graph. An image inputted the USB camera are displayed. An inner pa RAMeter value is suitably adjusted through an interface. A current adjusted pa RAMeter value is written in an EEPROM of the USB camera.
Patent KR-20000020792-A (KR)
Title: Novel 2,5-pyridine carboxylic derivatives
Inventor: YUN SEONG JUN
IPC: C07D401/14
Filed: 1998-09-24
Abstract: PURPOSE: Title derivatives are provided which has an inhibition effect against HBV(Hepatitis B Virus) and HIV(Human Immunodeficiency Virus) growth. CONSTITUTION: Nicotinic derivatives(formula 2; R4 is H or C1-C4 straight chain or branched alkyl group) and amine compound(formula 3; R1 is C1-C4 straight chain or branched alkoxy or amino group; R2 is H, C1-C4 straight chain or branched alkyl, C1-C3 straight chain or branched hydroxy alkyl, C2-C4 alkyl thioalkyl, phenyl, benzyl or hydroxy benzyl group; R3 is H or methyl group; n is 0-1) are reacted to give the derivatives(formula 1). Thus, 2 g of 6-£1-£3-isopropyl amino)-2-pyridyl|piperazin-4-yl-carbonyl|nicotine acid and 0.8 ml of triethyl amine are dissolved in 30 ml of methylene chloride, and slowly added 0.7 ml of pivaloyl chloride at 0- 5°C. Reactant is reacted at 5°C for 1 hour, followed by addition of 2.5 ml of N,N-diisopropyl ethyl amine and 0.83 g of glycine ethyl ester at 10°C for 2 hour to give 1.89 g of N-(ethoxycarbonyl methyl)-6-£1-£3-isopropyl amino)-2-pyridyl|piperazin-4-yl-carbonyl|nicotine amide hydrochloride.
Patent KR-20000020880-A (KR)
Title: Wet etching station for manufacturing semiconductor devices
Inventor: LEE KWANG YEOL
IPC: H01L21/3063
Filed: 1998-09-24
Abstract: PURPOSE: A wet etching station for fabricating semiconductor devices is provided to improve uniformity of a wafer and operation rate by constantly controlling the flow of chemical solutions using a height controller of the chemical solution. CONSTITUTION: A wet etcher comprises a bath(11) for accepting chemical solutions, a supply part(13) for supplying the chemical solutions to the bath(11), a circuitry part(16) for recovering the chemical solutions exhausted from the bath(11) and re-supplying to the bath, and a height controller(21) for controlling a height of the surface of the chemical solutions by controlling an aperture of an exhaust hole(12). The height controller is formed at side walls of the bath(11). The controller(21) further includes a control plate(22) for operating open/close of the exhaust hole(12) and a fixing unit(23) for fixing the control plate(22) to the side walls of the bath.
Patent KR-20000025496-A (KR)
Title: Coating composition for forming insulation coating having excellent roll-coating workability and method for formation of non-directional dielectric grater using thereof
Inventor: YU YEONG JONG
IPC: C23C26/00
Filed: 1998-10-12
Abstract: PURPOSE: A coating composition for forming insulation coating, which could improve the characteristics of the insulation coating such as insulation property and adhesion property and have an excellent appearance, and a method for formation of non-directional dielectric grater using thereof are provided. CONSTITUTION: The coating composition is prepared by (i) adding (b) 22.4-100.2 gram of an acid-soluble emulsion-type acryl-styrene copolymer resin as solid powder weight, 0.3-8.0 gram of boron and 8.3-20.3 gram of zinc nitrate regarding 100 gram of phosphoric acid in the magnesium phosphate solution containing silica; and (c) 0.3-1.0 gram of monomeric methacryloxy silane coupling agent and 1.5-5.0 gram of polymeric organic silicone regarding 100 gram of the solid powder of the acryl-styrene copolymer resin to (a) magnesium phosphate solution containing silica prepared by adding 8.2-10.1 gram of magnesium ion and 2.1-9.3 gram of powdery fine silica regarding 100 gram of phosphoric acid; and (ii) controlling a concentration of the composition by adding water. The method comprises the steps of: (i) coating the surface of the non-directional dielectric grater with the coating composition to make a thickness of dried coating be in the range of 0.7-2.8 micrometer per one side; and (ii) heating the coating for 11-27 seconds at the temperature of 550-700°C.
Patent KR-19990037269-A (KR)
Title: Av 기기 사용 방법 및 av 기기 시스템
IPC: H04N5/782
Filed: 1998-10-21
Abstract: 본 발명은 입력 AV 신호의 생성을 행하는 입력 기기와, AV 신호의 기록, 재생을 행하는 관련 기기와, AV 신호의 표시를 행하는 표시 기기와, 당해 복수의 입력 기기, 관련 기기 및 표시 기기를 상호 접속하여 AV 신호 및 관리 정보의 송신 또는 수신을 행하는 버스를 구비한 AV 기기 시스템에 관한 것이다.  이러한 AV 시스템에 있어서, 관련 기기는 AV 신호 기록용의 기록 매체를 구비하고, 입력 기기는 관련 기기에 기록 매체 상의 기록 영역을 확보하는 요구 정보를 송신하는 수단을 구비한다.
Patent KR-20000026681-A (KR)
Title: Stacked package of semiconductor chip
Inventor: KANG KYUNG SEOK
IPC: H01L23/28
Filed: 1998-10-22
Abstract: PURPOSE: A stacked package of semiconductor chip is provided to effectively stack plural semiconductor chips by deforming all pins of the chip into a form suitable to be stacked. CONSTITUTION: A stacked package of semiconductor chip comprises a first semiconductor chip(ICA), a second semiconductor chip(ICB), and a connector(54). The first semiconductor chip(ICA) is attached to outer circuits or a substrate. The second semiconductor chip(ICB) electrically connects all pins except CS pins to one of plural pins of the first semiconductor chip(ICA). The connector(54) connects the CS pins of the second semiconductor chip(ICB) to the NC pin of the second semiconductor chip(ICB). The connector has connecting lines and is inserted into a space between a body and the pins.
Patent KR-20000027397-A (KR)
Title: Method for forming glue layer using ionized physical vapor deposition and cleaning method
Inventor: CHAE MU SUNG
IPC: H01L21/203
Filed: 1998-10-28
Abstract: PURPOSE: A method for forming glue layer using ionized physical vapor deposition and cleaning method using the same to improve deposition characteristics on a side of a via and to effectively remove a native oxide and polymer impurity remained on a bottom of the via. CONSTITUTION: A bias voltage of not less than 200 W is applied to back plate of a wafer and a glue layer is formed by using ionized physical vapor deposition manner. The glue layer forms Ti, Co, Ta or W.
Patent KR-19990044926-A (KR)
Title: 결정의 분쇄제조방법
IPC: C30B33/00
Filed: 1998-10-30
Abstract: 본 발명은 로드형상의 결정을 분쇄제조하는 방법에 관한 것이며, 이 경우 충격효력을 가진 충격이 결정에 전달된다.
Patent KR-20000033180-A (KR)
Title: Optical recording medium and method for managing spare area allotment and defective area of optical recording medium
Inventor: HAN YONG HUI
IPC: G06F12/00
Filed: 1998-11-20
Abstract: PURPOSE: An optical recording medium and method for managing a spare area allotment and a defective area of the optical recording medium is to allot a same initial size to spare areas of mode-1 and mode-2. CONSTITUTION: An optical recording medium comprises a data region having a user are and a spare area. The spare area comprises a first spare area allotted at an inner circumference and a second spare area allotted at an outer circumference in an initial format state. The allotment of the first and second spare areas depends on the capacity of a desired user area. In the allotment method, a first spare region in a mode-1 where the first and second spare areas are all allotted in the initial format state has the same size with a first spare area in a mode-2 where only the first spare area is allotted in the initial format state.
Patent KR-19990062614-A (KR)
Title: 반도체 집적 회로
IPC: G11C11/419
Filed: 1998-11-26
Abstract: 본 발명에 따르면, 비트선의 전위를 변환하기 위한 전위 변환 회로내의 소비 전력을 저감할 수 있는 반도체 집적 회로를 얻을 수 있다. 
     본원에 관한 반도체 집적 회로는, 비트선(BL1) 및 비트선(BL2)과, 이들에 접속된 프리차지 회로(PCC), 전위 변환 회로(SA) 및 메모리 셀(MC)을 구비하고 있다.  전위 변환 회로(SA)는, 고전위(V2), 접지 전위(GND) 사이에는 트랜지스터(T3, T4, T6)의 전류 경로와 트랜지스터(T3, T5, T9)의 전류 경로가 있다.  트랜지스터(T3, T4, T6, T9)의 게이트 전극은 모드 신호(PC)를 수신하고, 트랜지스터(T4, T5)의 게이트 전극은 비트선(BL1, BL2)에 접속되어 있다.
Patent KR-19990045670-A (KR)
Title: 반도체 디바이스 제조 장치 및 제조 방법
IPC: H01L21/285
Filed: 1998-11-28
Abstract: 반구상(hemispherical) 입자가 형성되어 있는 비결정 실리콘 막을 가지는 반도체 디바이스를 제조하는 방법에 있어서, 실리콘 웨이퍼가 암모니아 과산화수소수를 사용하여 가열 세정되고, 염산 과산화수소수를 사용하여 상승된 온도에서 세정되며, 그후, 희석 불화수소산 용액에 침지되고, 다음에, 순수한 물로 린스(rinse)되며, 그후, 웨이퍼의 비결정 실리콘 막 표면이 이소프로필 알코올을 사용하여 건조된다.
Patent KR-20000034298-A (KR)
Title: Device and method for selecting channels by using a vertical blanking time for television
Inventor: CHO JOONG HYON
IPC: H04N5/50
Filed: 1998-11-28
Abstract: PURPOSE: A device and method for selecting channels by using a vertical blanking time for television is provided so that during a channel selection mode, a user can select only a channel corresponding to the frequency of each broadcasting station by storing the selected channel. CONSTITUTION: A decoder(19) decodes the data such as frequency and name of a broadcasting station, which are transmitted after being encoded with the intermediate frequency amplified by an IF amplifier(3). On a channel selecting mode, a control unit(15) selectees channels from the first to the last through a tuner(2) and judges whether a frequency of a selected channel is the same as a frequency of the data decoded by the decoder(19). If the frequency of the selected channel is the same as the frequency of the data decoded by the decoder(19), the control unit(15) stores the selected channel and displays the channel on CRT(12).
Patent KR-20000034455-A (KR)
Title: Device for detecting twist of tape in video tape recorder or cassette deck
Inventor: LEE WON IL
IPC: G11B31/00
Filed: 1998-11-30
Abstract: PURPOSE: A device for detecting twist of tape in video tape recorder or cassette deck is provided to make a tape not to be twisted any more and to minimize damage of the tape by detecting twist of the tape at once and generating an alarming sound and opening a deck. CONSTITUTION: A device for detecting twist of tape in video tape recorder or cassette deck includes light emitting devices(106) of which the number is more than one and light detecting devices(108) which detect light emitted from the light emitting device(106) and of which the number is more than one being paired with light emitting devices(106). A tape passes between the light emitting device(106) and the light detecting device(108). If the tape twists, light emitted from the light emitting device(106) is detected by the light detecting device(108). If the tape passes normally, light emitted from the light emitting device(106) isn't detected by the light detecting device(108).
Patent KR-20000034620-A (KR)
Title: Solid camera element and method for producing thereof
Inventor: LEE EUN SEOP
IPC: H01L27/146
Filed: 1998-11-30
Abstract: PURPOSE: A solid camera element and a method for producing thereof are provided to increase the focusing efficiency and the element sensitivity by way of forming a micro lens of a double stripe structure. CONSTITUTION: A solid camera element and a method for producing thereof include a black -and-white camera element(31), a shield membrane(34), a planar layer(35), a plurality of first micro lenses(36), a plurality of black-and-white dye patterns(37), a second planar layer(38), and a plurality of second micro lenses(39). The solid camera element contains a plurality of vertical charge coupled devices and a plurality of photoelectric conversion regions. The plurality of micro lenses(36) are formed in a line-shape on the first planar layer(35) on the photoelectric conversion regions. The plurality of black-and-white dye patterns(37) are formed on the first micro lenses(36) and increase the focusing efficiency. The second planar layer are formed on the foreface with the black-and-white dye pattern(37).
Patent KR-20000039031-A (KR)
Title: Shock absorber
Inventor: JUNG CHEOL WON
IPC: F16F9/32
Filed: 1998-12-10
Abstract: PURPOSE: A shock absorber is provided to simplify the assembling and disassembling operation between eyes and upper and lower mounting parts of a shock absorber by forming a screw assembling part on the respective upper and lower mounting parts and the eyes, thereby removing an additional test after assembly. CONSTITUTION: A shock absorber fixedly mounted in a main body of a vehicle and wheels for absorbing vibration and impact transmitted from the road surface to improve riding comfort and safety, includes upper and lower mounting parts(71,72) connected to the main body of the vehicle and wheels, eyes(81,82) coupled to the upper and lower parts, and screw assembly parts(710,720,810,820) corresponding to the upper and lower mounting parts and the eyes for the screw assembly and disassembly between the upper and lower parts and the eyes.
Patent KR-20000040997-A (KR)
Title: Solder ball reinforcing method
Inventor: KWON SEOK CHEOL
IPC: H01L23/48
Filed: 1998-12-21
Abstract: PURPOSE: A reinforcement of a solder ball is provided by forming an under-fill layer under the solder ball in the fabrication process of a chip scale package(CSP) so as to improve an adhesion(attachment) reliability, so that the other under-fill process may be required no more in the assembling processes thereafter, i.e., a productivity increases. CONSTITUTION: A reinforcement method contains the following steps: a step to coat a resin on a wafer surface to be attached to the solder-ball, for increasing the adhesion strength of the solder-ball in the CSP device attaching the solder-ball as an external terminal; a step to remove the resin in the region excluding the area under the solder-ball; a step to clean the resin which remains without being removed; and a step to perform a cold cure for assuring the characters of a layer qualities.
Patent KR-20000042807-A (KR)
Title: Method for controlling various infrared equipments
Inventor: SIM HYO SEON
IPC: H04Q9/00
Filed: 1998-12-26
Abstract: PURPOSE: A method for controlling various infrared equipments is provided to control the infrared equipments with one remote controller, by downloading controlling programs from an external device. CONSTITUTION: A remote controller has an input/output interface, an infrared transmitter, a user interface, and a memory. The input/output interface downloads infrared equipment controlling programs and infrared equipment controlling databases from an external device, and uploads information. The user interface performs pen touch inputs and button inputs of a user on a screen. The user interface displays pen touches and buttons. The memory stores the various infrared equipment controlling programs and the databases. A method for controlling various equipments in the remote controller according to company products, comprises the steps of: making the user display a remote controller button or an icon on a screen by using an infrared equipment controlling program, corresponding to a specific company and a specific product through the user interface; displaying the remote controller button and the icon on the screen by using the infrared equipment controlling program, according to a remote controller functional selection of a previously-selected product by the user; and making the infrared transmitter generate an infrared pulse by using a corresponding infrared equipment controlling database, according to a pen touch remote controller functional selection of the user.
Patent KR-20000044365-A (KR)
Title: Method for connecting wireless handset with telephone body in wireless private branch exchange
Inventor: PARK GYU HEE
IPC: H04M1/725
Filed: 1998-12-30
Abstract: PURPOSE: A method for connecting a wireless handset with a telephone body is provided to expand functional keys and a displayer of the wireless handset by using the telephone body, and to connect the telephone body with the wireless handset by an infrared communication system. CONSTITUTION: A wireless private branch exchange(PBX) has a wireless handset and a telephone body. The wireless handset executes wireless communication with a main device of an exchange through base stations. The telephone body has a displayer and many functional keys, and is not connected to the main device with a wire. A method for connecting the wireless handset with the telephone body in the wireless PBX comprises the steps of: transmitting data corresponding to a presently-executed operation in the wireless handset to the telephone body, by an infrared data communication system; if the telephone body receives the infrared data, outputting a message corresponding to the data, which accords with the presently-executed operation of the wireless handset, to the displayer; if a key is inputted from the telephone body, transmitting key data corresponding to key to the wireless handset, by the infrared data communication system; receiving the key data to execute an operation corresponding to the key data.
Patent KR-20000046799-A (KR)
Title: Method for manufacturing bumps
Inventor: YOON DAE IE
IPC: H01L21/00
Filed: 1998-12-31
Abstract: PURPOSE: A method for manufacturing bumps is provided to prevent bump short from occurring beforehand as well as to increase the yield of the bump manufacturing process. CONSTITUTION: A method for manufacturing bumps includes following steps. At the first step, a seed metal layer(4) is formed on the surface of the wafer pad. At the second step, bump photo layer as well as a bump metal layer(6) are plated on the seed metal layer selectively. At the third step, the bump photo layer is etched by performing a pre-process before etching the seed metal layer. At the fourth step, the seed metal layer except for the bump metal layer is etched with an etchant so as to form a metal bump. The pre-process is performed using an oxygen plasma method to oxidate the surface of the wafer.
Patent KR-20000047010-A (KR)
Title: Speaker system
Inventor: KIM JOO YOUNG
IPC: H04R1/28
Filed: 1998-12-31
Abstract: PURPOSE: A speaker system is provided to promote efficiency and clearly transfer base sound. CONSTITUTION: A speaker system comprises:a first isolation member isolating the vicinity of one end of a sound impedance matching means; and a second isolation member isolating the vicinity of other end of the sound impedance matching means. An enclosure (30,60,152) is formed between the first isolation member and the second isolation member. The enclosure accommodates gas heavier than air ,that is the gas is slower than air so the speaker system can generates base and minimize size of a sound resonance tube as well. In particular, the speaker system generating base sound can use smaller size of a hone or a sound mirror.
Patent KR-19990063592-A (KR)
Title: 웨이퍼 처리액 및 그 제조방법
IPC: C11D3/02
Filed: 1996-11-11
Abstract: 본 발명은 20∼60중량%의 플루오르화수소(HF)에, C n H 2n+1 ph(SO 3 M)Oph(SO 3 M)(ph는 페닐렌기, n은 5∼20, M은 수소 또는 염을 나타낸다), C n H 2n+1 phO(CH 2 CH 2 O) m SO 3 M(ph는 페닐렌기, n은 5∼20, m은 0∼20, M은 수소 또는 염을 나타낸다) 및 C n H 2n+1 O(CH 2 CH 2 O) m SO 3 M(n은 5∼20, m은 0∼20, M은 수소 또는 염을 나타낸다)의 적어도 하나가 0.01∼1000ppm 용해하고 잔부가 물(합계 100중량%)로 이루어지는 웨이퍼 처리액 및 이 처리액에 물, H 2 O 2 , HNO 3 , CH 3 COOH, NH 4 F 등을 첨가하여 저농도의 웨이퍼 처리액을 제조하는 방법에 관한 것이다. 
     또, HF, H 2 O 2 , HNO 3 , CH 3 COOH, NH 4 F, HCl, H 3 PO 4 및 식 
     [(R 1 )(R 2 )(R 3 )(R 4 )N] + OH -   
     (R 1 , R 2 , R 3 , R 4 는 각각 수산기를 가져도 되는 탄소수 1∼6의 알킬기를 나타낸다)으로 표시되는 암모늄히드록시드의 적어도 1종에 C n H 2n+1 ph(SO 3 M)Oph(SO 3 M)(ph는 페닐렌기, n은 5∼20, M은 수소 또는 염을 나타낸다), C n H 2n+1 phO(CH 2 CH 2 O) m SO 3 M(ph는 페닐렌기, n은 5∼20, m은 0∼20, M은 수소 또는 염을 나타낸다) 및 C n H 2n+1 O(CH 2 CH 2 O) m SO 3 M(n은 5∼20, m은 0∼20, M은 수소 또는 염을 나타낸다)으로 표시되는 계면활성제의 적어도 하나가 0.01∼1000ppm 용해하고 잔부가 물(합계 100중량%)로 이루어지는 웨이퍼 처리액에 관한 것이다.
Patent KR-19990066998-A (KR)
Inventor: BERTILSSON KLAS
IPC: F28F27/02
Filed: 1996-10-16
Abstract: 열전달 평판(2A, 2B)의 적층부로 구성되어 냉매와 같은 액체의 증발을 목적으로 하는 평판 열교환기는 평판 적층부를 통해 연장되는 상기 액체를 위한 입구 채널(17A, 17B)과, 또한 평판 적층부를 통해서 연장되는 별도의 분배 채널(18A, 18B)을 구비한다.  열전달 평판(2A, 2B)에 의해 형성된 제1 통로(25A, 25B)를 통해서 입구 채널(17A, 17B)은 분배 채널(18A, 18B)과 연통하며, 또한 열전달 평판(2A, 2B)에 의해 형성된 제2 통로(26A, 26B)를 통해서 분배 채널(18A, 18B)은 열전달 평판(2A, 2B)들 사이의 교번되는 평판 사이의 공간에 형성된 증발 유동 경로(13A, 13B)와 연통한다.
Patent KR-19990071670-A (KR)
Title: 지속파 레이저를 이용하는 포토굴절 물질에서, 두-단계의게이트 홀로그래피 기록.
IPC: G11B7/243
Filed: 1996-11-21
Abstract: 두 개-광양자 기록 시스템(recording system)의 이용을 위한 거꾸로 할 수 있는 홀로그래피 기록 매체(25)(reversible holographic recording media)로써 강유전성 물질(ferroelectric material)을 발표한다.  여기에서 발표된 강유전성 물질(ferroelectric material)은, 긴 존재 기간을 가지는 전자 중간 상태, 강유전성 물질(ferroelectric material)의 가전자대 및 전도대 등을 공급한다.  간섭 모형(interference model)을 기록하기 위하여 낮은 파워 지속파(1)(continuous wave, "cw") 레이저를 이용하도록, 상기 중간 상태는 충분한 존재 기간(1 내지 100 milliseconds 의 차원으로)을 가진다.  그러므로, 높은-파워, 짧은 펄스 길이, 모드-락(mode-locked) 레이저 또는 Q-스위치(Q-switched) 레이저 등을 필요로 하지 않는 두 개-광양자 홀로그래피 기록 시스템(holographic recording system)을 발표한다.  오히려, 발표된 홀로그래피 기록 시스템(holographic recording system)은, 다이오드 레이저와 같은 가시광선 레이저와 적외선 근처 지속파 레이저 등을 이용한다.  홀로그래피 기록 매체(holographic recording media)의 전자를 중간 상태로 들뜨게 하는 제 1 광양자를 흡수할 목적으로, 발표하고 있는 홀로그래피 기록 시스템(holographic recording system)을 공급한다.  이제 부터는, 제 2 광양자의 흡수에 있어서, 기록 시스템(recording system)에 의해서 공급되는 간섭 모형(interference model)에 따라서 설치되는 매체의 전도대로 전자를 촉진시킨다.