baber/WOPTO huggingface dataset:
Patent KR-20030036974-A (KR)
Title: Screen for Flat Type Display Device
Inventor: KO NAM JE
IPC: H01J31/08
Filed: 2001-11-01
Abstract: PURPOSE: A screen for flat panel displays is provided to be capable of minimizing the miss landing of an electron beam and reducing the width of phosphor by forming electric field in region of the phosphor so as to correct miss landing of an electron beam automatically. CONSTITUTION: An electron beam is horizontally and vertically deflected by a horizontal deflection electrode and a vertical deflection electrode, respectively. A screen comprises phosphors(10a) for emitting light by the electron beam, and a black matrixes(10b) positioned between the phosphors. A plurality of transparent conductive films(10c) are formed vertically or horizontally on the phosphors and the black matrixes. Each conductive film has a predetermined area respectively and is arranged at a regular pitch. The neighboring two conductive films are insulated each other so that different voltages are alternatively applied thereto.
Patent KR-20010112157-A (KR)
Title: 결함 접지 구조를 정합회로에 삽입하여 무선통신용라디오파/초고주파/밀리미터파 대역 증폭기를 소형화하는방법
Inventor: AHN DAL
IPC: H01P3/08
Filed: 2001-11-05
Abstract: 본 발명은 결함 접지 구조(Defected Ground Structure, DGS)를 지닌 마이크로스트립 선로가 전파 지연 특성(Slow-wave chacteristics)을 지니고 있음을 이용하여, RF/마이크로파/밀리미터파 대역에서 증폭기 회로의 크기를 줄이는 방법이다. 마이크로스트립 선로의 아래 접지면에 DGS 를 삽입하면 등가의 인턱터, 캐패시터 성분으로 인하여 특성 임피던스가 증가하는 경향을 보이고, 동시에 등가적으로 유효 유전율이 증가하는 특성, 다시 말하면 slow-wave 특성이 나타나서 동일한 물리적 길이라고 하더라도, DGS가 없을 때보다 전기적 길이가 늘어나게 된다. 따라서 DGS 를 삽입하기 이전의 전기적 길이와 같게 하려면, DGS 를 삽입한 후에 선로의 길이를 줄여주면 된다. 이 원리를 이용하여 기설계된 증폭기의 정합회로 내의 전송 선로에 DGS 를 삽입하여 정합회로의 길이를 줄여줌으로써, 결과적으로 증폭기 회로의 소형화를 꾀할 수 있다.
Patent KR-20010114191-A (KR)
Inventor: OH YONG MOOK
IPC: B01D53/34
Filed: 2001-11-06
Abstract: 본 발명은 실내의 공작기계 작동으로 작업시 악취와 오염된 공기를 정화하여 신선한 공기를 흡수하기 위한 것임.
Patent KR-20030037671-A (KR)
Inventor: JUNG JIN UNG
IPC: A01K59/00
Filed: 2001-11-07
Abstract: PURPOSE: A honey extractor is provided to separate honey more easily by permitting centrifugal force effectively on the both surfaces of a honeycomb. CONSTITUTION: The honey extractor comprises a frame(1); a honey extracting part(2) for extracting honey by rotating a honeycomb while the rotating axis of the honeycomb is coinciding with the rotating axis of the honey extracting part, wherein, the honey extracting part is mounted on the frame; and a driving part(3) for driving the honey extracting part which is mounted on the frame. The honey extracting part comprises a drum mounted on the frame; a hive(8) which is mounted in the drum and connected with the driving part so as to rotate; at least one of honeycomb tray(9) which is detachably mounted on the hive; and a cover which is closeable mounted on an upper portion of the drum. A plurality of honeycombs are inserted into the honeycomb tray.
Patent KR-20010106394-A (KR)
Inventor: CHOI DONG HUN
IPC: B02B5/00
Filed: 2001-11-14
Abstract: A method of speech coding a sampled speech signal using long term prediction (LTP). A LTP pitch-lag parameter is determined for each frame of the speech signal by first determining the autocorrelation function for the frame within the signal, between predefined maximum and minimum delays. The autocorrelation function is then weighted to emphasise the function for delays in the neighbourhood of the pitch-lag parameter determined for the most recent voiced frame. The maximum value for the weighted autocorrelation function is then found and identified as the pitch-lag parameter for the frame.
Patent KR-20010107907-A (KR)
Title: 폐페인트를 이용한 압착 시멘트의 제조방법
Inventor: KIM SUNG HO
Filed: 2001-11-16
Abstract: 본 발명은 폐페인트를 이용한 압착 시멘트의 제조방법에 관한 것으로, 더욱 상세하게는 자동차나 선박 등과 같은 피도장물체에 페인트를 분사하여 도장 작업을 하는 도장공정에서 대량으로 발생되고 있는 폐페인트를 회수하여 산업폐기물을 처리함과 동시에 인조석, 타일, 대리석 등을 부착시키는 강한 내구성을 가지는 건축자재 접착용의 압착 시멘트를 제조할 수 있는 폐페인트를 이용한 압착 시멘트의 제조방법에 관한 것이다. 
     본 발명에 따르면, 수거된 폐페인트에 시멘트와 규산소다를 혼합 교반시켜 저장 탱크에 일정시간 저장하는 제 1공정과, 교반된 폐페인트를 건조실에서 100℃~150℃의 열풍으로 건조시키는 제 2공정과, 건조된 폐페인트를 분쇄기로써 입도가 1mm 이하로 되도록 분쇄시키는 제 3공정과, 분쇄된 폐페인트와 시멘트와 접착제 및 모래가 교반되어 압착 시멘트가 제조되는 제 4공정으로 구성된 폐페인트를 이용한 압착 시멘트의 제조방법이 제공된다.
Patent KR-20030041698-A (KR)
Title: Structure of dispenser portion for refrigerator
Inventor: KWON YEONG CHEOL
IPC: F25D25/00
Filed: 2001-11-21
Abstract: PURPOSE: A dispenser unit structure for a refrigerator is provided to reduce parts count and allow for advantages of assembly by simplifying the configuration of dispenser mounting portion. CONSTITUTION: A dispenser unit structure comprises an outer casing(120) forming a front surface of a door; a door liner(110) spaced apart from the rear surface of the outer casing, which forms a rear surface of the door; a cylindrical support member(122) interposed between the outer casing and the door liner and made of a styrofoam material; a water supply valve mounting tube(124) arranged inside of the cylindrical support member; a water supply valve(114) mounted inside of the water supply valve mounting tube, which supplies water from a water tank(112) to a dispenser unit(130); and a foamed thermal insulation layer(126) formed between the outer casing and the door liner.
Patent KR-20030042953-A (KR)
Title: Spectacle Lens for Correcting Sight
Inventor: KIM SUN TAE
IPC: G02C7/02
Filed: 2001-11-26
Abstract: PURPOSE: A spectacle lens for correcting eyesight is provided to increase the resolution of an external object and a correcting effect for eyesight by causing a pin hole effect for a sensitive region with high sensitivity. CONSTITUTION: A spectacle lens includes a lens portion(10) and a thin film(20) adhered on a surface of the lens portion. The thin film is formed with a shielding region(21) and an incident region(22). The shielding region is used for shielding the light corresponding to a particular region of spectrum. The incident region has a diameter corresponding to a range of 3nm to 0.01mm. The incident region is formed with a plurality of pin holes. The particular region corresponds to a yellow region with high sensitivity.
Patent KR-20030044369-A (KR)
Title: manufacturing apparatus for liquid crystal display
Inventor: HA JEONG MIN
IPC: G02F1/13
Filed: 2001-11-29
Abstract: PURPOSE: An apparatus for fabricating a liquid crystal display device is provided to prevent the deformation of a diffuser plate in the process of fabricating an LCD by providing a plurality of beam holes penetrating the diffuser plate to connect corresponding side surfaces. CONSTITUTION: An apparatus for fabricating a liquid crystal display device includes a chamber(100) for securing a substrate(1) inside, and a source/reacting substance storing unit mounted with a supply tube for introducing source/reacting substance into the chamber. An insulating plate(138) is mounted on the substrate to extend the inside of the chamber vertically and formed with a plurality of path holes(138a) penetrated vertically. A diffuser plate(136) is mounted on the insulating plate to extend the inside of the chamber vertically and has a diffuser hole(136a) penetrating its center vertically to fit an end of the supply tube on an immediate upper part, and a plurality of beam holes(136b) penetrating the inside surface by a predetermined interval to connect both corresponding side surfaces together.
Patent KR-20020023703-A (KR)
Inventor: CHOI SEONG HO
IPC: G08G1/00
Filed: 2001-12-07
Abstract: PURPOSE: An apparatus for detecting a use of a cellular phone by an unmanned camera system is provided to detect a using state of a cellular phone by using an unmanned camera system. CONSTITUTION: Traffic signal information is received(1). A kind of vehicle is identified by using the traffic signal information(2). Information related to the identified kind of vehicle is stored. A range and a location of the vehicle are grasped by analyzing images related to a system(3). The grasped range and location of the vehicle are stored. The grasped range and location of the vehicle are transmitted(4). A use of a cellular phone is checked by detecting frequencies and analyzing the detected frequencies. Data related to the use of the cellular phone are transmitted. Data related to the above processes are stored, respectively. The above processes are performed repeatedly.
Patent KR-20030049451-A (KR)
Inventor: SONG JU HYEON
IPC: H03K19/0175
Filed: 2001-12-15
Abstract: PURPOSE: An output buffer is provided to drive a pull-up transistor and a pull-down transistor of the output buffer by using voltages generated from a negative charge pump and a positive charge pump. CONSTITUTION: A positive charge pump(26) generates a positive voltage. A negative charge pump(24) generates a negative voltage. The first logic portion(21) performs a logical operation for an output enable bar signal and an output signal of a sense amplifier. The second logic portion(22) performs a logical operation for an output enable signal and an output signal of the sense amplifier. The first level shifter(23) outputs the negative voltage according to an output signal of the first logic portion. The second level shifter(25) outputs the positive voltage or a ground voltage according to an output signal of the first logic portion. The first and the second switching portions control electric potential of output terminals according to output signals of the first and the second level shifters.
Patent KR-20030049726-A (KR)
Title: Method for Controlling Course of Washing Machine
Inventor: KOO BON GWON
IPC: D06F33/02
Filed: 2001-12-17
Abstract: PURPOSE: An operation control method of a washing machine is provided to improve the reliability and convenience by disentangling the laundry without draining in setting the washing course independently. CONSTITUTION: A user sets washing, rinsing and dehydrating courses through a key input unit, and a washing machine performs washing according to the predetermined course command(S30). The command to set the washing course only is detected in case of remaining time of washing course to be the first predetermined time(S31,32). The laundry is disentangled during the first predetermined time in setting the washing course only(S33). Convenience and reliability are improved by disentangling the laundry without draining in setting the washing course only.
Patent KR-20030050009-A (KR)
Inventor: WOO SANG DONG
IPC: B60N2/52
Filed: 2001-12-18
Abstract: PURPOSE: A shock absorber of a seat suspension system for a vehicle is provided to improve the riding comfort on a seat by controlling the damping force of the shock absorber according to driver's taste. CONSTITUTION: A shock absorber(1) of a seat suspension system for a vehicle includes a cylinder(10) filled with oil; a piston rod(20) fitted into the cylinder; and a piston(30) integrally installed to the lower end of the piston rod. The piston rod comprises an outer rod(22) integrally formed with the piston at the lower end and an inner rod(24) rotatably installed to be coaxial with the outer rod. An inner plate(36), integrally installed to the lower end of the inner rod, is installed to the inside of the piston. Plural oil passages(32,34,38) for flow of oil are formed to the upper/lower surfaces of the piston and the inner plate. The opening degree of the oil passages of the piston and the inner plate is controlled according to the rotating degree of the inner rod and the inner plate. Accordingly, the damping force of the shock absorber is controlled according to driver's taste.
Patent KR-20030050427-A (KR)
Title: displayer with mirror function
Inventor: OK YUN SUN
IPC: H04N5/64
Filed: 2001-12-18
Abstract: PURPOSE: A display device having a mirror function is provided to make a surface of a picture display panel like a mirror, thereby using the display device as a substitute for a mirror. CONSTITUTION: An operating unit includes a switch. A display panel is formed of a picture display unit(30) displaying a picture, and a reflective coating glass(31) accumulated on the picture display unit, being coated with two or more materials from iron, stainless steel, titanium, and cobalt. A control unit controls the picture display unit based on operations of the operating unit for selecting display states of a mirror mode and a display mode.
Patent KR-20030052017-A (KR)
Title: Battery having abmormality current cut off device
Inventor: JEONG GYU SIG
IPC: H01M2/34
Filed: 2001-12-20
Abstract: PURPOSE: Provided is a battery having a cut-off device, which can intercept abnormal current caused by over-charging or rapid discharging of a bare cell which may be exploded when the inner pressure is increased. CONSTITUTION: The battery having two electrodes includes an operator(210) generating the displacement current by pressure generated in the battery cell; a pressing switch formed of a conductive metal or conductive non-metal which can be destroyed when the displacement current of the operator(210) exceeds a certain level; an abnormal current cut-off device(200) sealing the pressing switch and the operator(210) with a curable adhesive; first and second terminals connected to the abnormal current cut-off device(200) and the battery cell, respectively; and a case enclosing the battery cell and the abnormal current cut-off device(200).
Patent KR-20030054466-A (KR)
Title: Manufacturing method of resin coated steel sheet for automotive fuel tank with excellent corrosion resistance and fuel resistance
Inventor: LEE JAE RYUNG
IPC: C09D163/00
Filed: 2001-12-26
Abstract: PURPOSE: A method for preparing a resin solution for forming a resin-coated steel plate for a fuel tank and a method for preparing a resin-coated steel plate for a fuel tank are is provided, to improve the corrosion resistance and the fuel resistance of a processing part without using lead. CONSTITUTION: The preparation method of a resin solution comprises the step of mixing a water-soluble phenoxy resin having a number average molecular weight of 25,000-50,000 as a base resin, and 2-15 phr of a melamine resin, 10-20 phr of colloidal silica, 1-5 phr of a chromic acid compound and 1-10 phr of a wax based on the amount of the base resin. The resin-coated steel plate is prepared by coating the resin solution on a chromate-treated zinc-based material electroplated steel plate by a thickness of 1-10 micrometers, calcining the coated steel plate at a temperature of 160-250 deg.C, and cooling it. Preferably the chromic acid compound is at least one selected from barium chromate and strontium chromate.
Patent KR-20030054689-A (KR)
Title: Apparatus for detecting split of roll
Inventor: JUNG SEONG GYO
IPC: B21B37/00
Filed: 2001-12-26
Abstract: PURPOSE: A rolling roll split detecting apparatus is provided to prevent quality of a rolled article from being lowered with preventing a rolling process line from being stopped by automatically detecting a split of a rolling roll. CONSTITUTION: A rolling roll split detecting apparatus includes a rolling force input section(10) for converting a detecting signal of a rolling force detector into a digital signal. A roll diameter input section(20) detects a roll diameter and converts the roll diameter into a digital signal. A roll speed input section(30) detects a roll speed and converts the roll speed into a digital signal. A rolling force detecting section outputs a low-pressure determining signal. A plate detecting section(50) is provided to generate a plate intake signal. A pulse generator(60) generates a pulse signal when the low-pressure determining signal is inputted from the rolling force detecting section(40). A first relay section is provided to selectively provide an output of the roll speed input section(30). A split determining section(110) determines a split of the rolling roll by comparing a split value detected by a split detecting section(100) with a reference value.
Patent KR-20030056447-A (KR)
Title: Magnetoresistive RAM and manufacturing method therefor
Inventor: JANG IN U
IPC: H01L27/10
Filed: 2001-12-28
Abstract: PURPOSE: A magnetoresistive RAM(Random Access Memory) and a method for manufacturing the same are provided to be capable of simplifying manufacturing processes by forming a reading word line and a writing word line using the same processing. CONSTITUTION: A magnetoresistive RAM comprises an MOS transistor and an MTJ(Magnetic Tunnel Junction)(116). The MOS transistor further includes a reading word line(108) and a writing word line(110). The MTJ(116) is formed on the writing word line(110) and connected to a source contact region(104b) of the MOS transistor. A bit line(118) is electrically connected to the MTJ(116).
Patent KR-20010079579-A (KR)
Title: Quasi-isothermal brayton cycle engine
IPC: F02G1/02
Filed: 1999-07-30
Abstract: An engine includes a compressor, and combustor, and an expander. The compressor compresses ambient air. The combustor burns the compressed air, and produces exhaust gasses. The expander receives the exhaust gases from the combustor, and expands the exhaust gasses. The compressor may be a gerotor compressor or a piston compressor having variable-dead-volume control. The expander may be a gerotor expander or a piston expander having variable-dead-volume control. Moreover, the engine may include a regenerative brake. The regenerative brake may include one or more valves coupled to the compressor, an expander clutch, and a compressor clutch. Specifically, during braking, the expander clutch is disengaged and the compressor clutch is engaged.
Patent KR-20010082271-A (KR)
Title: Winding mechanism with a housing
IPC: B66D3/20
Filed: 1999-10-28
Abstract: A winch including a casing for accommodating an electric motor, a gearbox and a roller for winding and unwinding a traction member. In order to provide a cost-effective flat winch which can be transported by a single person and used universally, in particular for the domestic sector, the casing has a box-like configuration to exhibit a shape and size of a suitcase or attaché case, with the casing having opposite flat outer sides, with one outer side having attached thereon a suspension member, and the other outer side being formed with an opening for passage of the traction member. The electric motor, the gearbox and the roller are arranged in the casing and extend in a common plane, with the casing including a handle to allow transport of the winch by a person. The electric motor may be designed as a universal motor, and connected via a belt drive to the gearbox which is designed as a self-locking worm drive.
Patent KR-20010080748-A (KR)
Title: 클라리트로마이신 제조에 있어서 매크로리드 중간체
IPC: A61K31/7048
Filed: 1999-12-09
Abstract: 본 발명은 수성 매질 중에서 클라리트로마이신을 무수물 형태 및 수화물 형태로 제조하는 방법에 관한 것이다.
Patent KR-20010099854-A (KR)
Title: 조직 블록을 절단하는 방법 및 장치
IPC: G01N1/30
Filed: 1999-12-20
Abstract: 본 발명은 CT, MRI 또는 PET 스캐닝에 사용된 어떠한 스캐닝 면과 동일한 배향으로 단면을 가진 슬래브로 불규칙 조직 블록을 절단하기 위한 조직 매립 과정과 장치에 관한 것이다.    매립된 장치를 사용하여, 절단 장치 내 맞는 규칙적인 외부면을 가진 조직 블록이 알긴산 플라스틱 중합체에 매립된다.    상기 매립 과정으로 예컨대 뇌와 신장과 같이 불규칙면을 가진 조직과 기관을 재생가능하게 또한 임의의 배향으로 절단할 수 있다.    상기 장치는 크랭크의 작동을 통하여 하강할 수 있는 프레임 내의 긴 날카로운 블레이드의 배열로 구성된다.    상기 날카로운 블레이드 프레임은 공압식 진동기에 의해 진동된다.    알긴산 조직 블록은 압축된 기류 밸브에 의해 생성된 진공으로 위치에 유지된다.
Patent KR-20010108102-A (KR)
Title: Radio frequency receiver circuit
IPC: H04B1/59
Filed: 2000-01-11
Abstract: A radio frequency (RF) receiver circuit (2) comprises: an antenna (8) for receiving a radio frequency (RF) signal (4); an optical detector (10) for receiving a modulated optical signal (12) and converting it to an electrical signal; means (14) for mixing the electrical and RF signals to produce an intermediate frequency signal; and a reflective optical modulator (16) which is operable at the intermediate frequency to modify and reflect (24) the modulated optical signal (12) with the intermediate frequency. By detecting the optical signal which has been modified by the circuit, it is possible to remotely detect the RF signal received by the circuit and the circuit thus acts as a remotely accessible RF receiver circuit. A transmitter arrangement and aerial tuning are also described.
Patent KR-20020011443-A (KR)
IPC: C40B40/06
Filed: 2000-06-21
Abstract: 본 발명은 프로브의 반복 배열을 이용하여, 다수의, 대량 처리 생물학적 또는 화학적 분석을 동시에 수행하는 데 유용한 조성물, 기구 및 방법에 관한 것이다.  본 발명의 조합물은, 복수개의 테스트 영역을 함유하고, 이러한 영역중 2 이상, 바람직한 구현예로는, 이중 20 개 이상이 실질적으로 동일한 기판을 포함하는데, 각 테스트 영역들은 일반적인 앵커 분자의 배열을 함유한다.  상기 앵커는 이관능성 링커 분자와 연결되고, 이들 각각은 하나 이상의 앵커에 특이적인 부분과 목적하는 표적에 특이적인 프로브인 부분을 함유한다.  프로브의 생성된 배열을 이용하여 프로브와 특이적으로 상호반응하는 하나 이상의 표적 분자의 존재를 분석하거나 또는 활성을 시험한다.  본 발명의 한 구현예에로는, 테스트 영역 (웰일 수도 있음)을 더 작은 하위영역(톱니모양홈, 또는 물결모양홈)으로 더욱 세분한다.
Patent KR-20020065343-A (KR)
IPC: G02B7/02
Filed: 2001-04-25
Abstract: 본 발명은 광학 시스템에서의 렌즈의 정밀 위치 설정 및 정렬을 위한 장치, 시스템 및 방법에 관한 것으로, 렌즈의 외주 모서리에 결합하는 제1 지지부는 복수개의 위치 설정 장치를 사용하여 동심의 제2 지지부에 연결된다.  적어도 하나의 위치 설정 장치는 제1 지지부를 제2 지지부에 대해 축방향으로 이동시키도록 구성된다.  각각의 위치 설정 장치는 레버, 작동기 및 굴곡부(flexure)를 포함한다.  레버는 피벗점을 가지며, 제2 지지부 상에 장착된다.  작동기는 레버에 연결되고, 피벗점을 중심으로 레버를 작동시키는 데 사용된다.  굴곡부는 작동기와 피벗점 사이에서 레버에 연결된 제1 단부를 갖는다.  굴곡부의 제2 단부는 제1 지지부에 연결된다.  제2 위치 설정 장치는 제1 지지부를 축방향에 실질적으로 직각인 방향으로 제2 지지부에 대해 이동시키는 데 사용된다.  추가의 위치 설정 장치는 예컨대 회전 및 경사와 같은 다른 종류의 운동을 제공하는 데 사용될 수 있다.  바람직한 실시예에서, 작동기는 공압식 벨로우즈(pneumatic bellows)이다.  압축 가스 공급 모듈은 벨로우즈에 유체 연결되고, 압축 가스 공급 모듈과 연통된 제어 모듈은 벨로우즈를 작동시키는 데 사용된다.  선택 사양인 센서 모듈은 제1 지지부를 제2 지지부에 대해 위치 설정하도록 제어 모듈에 데이터를 제공하는 데 사용된다.
Patent KR-20030061163-A (KR)
Title: Supply wafer system of lapping apparatus for making semiconductor test sample for making semiconductor test sample
Inventor: LEE GYEONG U
IPC: H01L21/02
Filed: 2002-01-11
Abstract: PURPOSE: A supply wafer system of lapping apparatus for making semiconductor test sample is provided to be capable of preventing the test sample from being flowed into an exhaust line by using a net having a smaller mesh than the test sample. CONSTITUTION: A supply wafer system(100) of a lapping equipment is provided with a draining line(110) connected to a process machine for draining waste water generated under a semiconductor test sample manufacturing process and an extracting part(120) installed on the draining line for extracting a test sample(S) flowing along the draining line. Preferably, the extracting part includes a can(122) having a port connected with the draining line and a net(126) having a smaller mesh than the test sample, installed in the can for extracting the test sample.
Patent KR-20020062172-A (KR)
Title: Method for fabricating III-V compound semiconductor
Inventor: HATA MASAHIKO
IPC: H01L21/20
Filed: 2002-01-16
Abstract: PURPOSE: To provide a method of manufacturing a group a III-V compound semiconductor, in which occurrence of a surface defect due to abnormal growth can be restricted. CONSTITUTION: In the case of manufacturing a thin film crystal wafer 1 by sequentially laminating a small buffer layer 3 having Al composition and large laminated film layers 4 having Al composition with an epitaxial crystal growth on a GaAs substrate 2, a first layer of the laminated film layers 4, that is, an Al0.4Ga0.6As layer 41 is formed by the epitaxial crystal growth on the buffer layer 3 with a growth rate smaller than the epitaxial growth rate of the buffer layer 3 after the buffer layer 3 has been formed by the epitaxial crystal growth, and thus occurrence of a starting point of the abnormal growth on an interface between the buffer layer 3 and the laminated film layers 4 is effectively restricted.
Patent KR-20030065134-A (KR)
Inventor: BAEK BONG JU
IPC: H01L23/12
Filed: 2002-01-31
Abstract: PURPOSE: A method of fabricating a substrate for semiconductor package is provided to maintain a shape of edge and prevent a crack by using a low temperature firing green sheet and a high temperature firing green sheet. CONSTITUTION: One or more low temperature firing green sheets(55) are formed on the center portion of a substrate(53) in order to include a step type cavity. A high temperature firing green sheet(51) is formed on the cavity region of the substrate, each upper portion of the low temperature firing green sheets, and a lower portion of the substrate. The substrate including the low temperature firing green sheets and the high temperature firing green sheet is pressed by using a predetermined pressure. A firing process for the low temperature firing green sheets is performed. The high temperature firing green sheet is removed.