baber/WOPTO huggingface dataset:
Patent KR-20010030198-A (KR)
Inventor: KUMAKI MASATAKA
IPC: H04N5/44
Filed: 2000-08-31
Abstract: PURPOSE: To prevent apparent Q of a crystal oscillation from lowering and to prevent the stoppage of oscillation, when an oscillation signal is taken out. CONSTITUTION: A crystal oscillation circuit 1 has an oscillation transistor 2, where a collector or a base is set to be ground potential in terms of high frequency, a first feedback capacitor 5 which is connected between the base and the emitter of the oscillation transistor 2 is terms of high frequency, a second feedback capacitor 6 which is connected between the emitter and the collector in terms of high frequency and a crystal oscillator 3 and a capacitor 7, which are connected in series and are connected between the base and the collector in terms of high frequency. The capacitor 7 is installed on a ground potential side, and an oscillation signal is extracted from the connection point of the crystal oscillator 3 and the capacitor 7.
Patent KR-20020025427-A (KR)
Title: Apparatus and method for forwarding Internet Protocol Packet
Inventor: LEE DONG HWAN
IPC: H04L12/28
Filed: 2000-09-29
Abstract: PURPOSE: An IP packet forwarding device is provided to process an IP packet forwarding procedure of transmitting IP packets of a Non-MPLS(Multi-Protocol Label Switching) network to an MPLS network in a hardware system by using a content specifying memory and a connection table memory, so as to remarkably increase a packet processing capacity. CONSTITUTION: An L2 header examiner(10) examines whether an error is generated from a received MAC(Media Access Control) frame, and examines whether data included in a data area of a normal MAC frame is an IP packet. An IP header examiner(20) receives the IP packet to examine whether an error is generated. An LME(Longest Prefix Match Engine)(30) outputs a connection table address corresponding to an IP address of a destination included in the normal IP packet of the IP header examiner(20). An SAR(Segmentation And Reassembly)(40) receives the normal IP packet to segment the IP packet into many ATM cells, and retrieves labels corresponding to the connection table address to reassemble the labels as headers of the ATM cells. A protocol processing engine(50) processes errors detected by the L2 header examiner(10), the IP header examiner(20), or the LME(30), and processes data except the IP packet detected by the L2 header examiner(10) in a software system.
Patent KR-20020029521-A (KR)
Inventor: HWANG YUN HO
IPC: H01P1/205
Filed: 2000-10-13
Abstract: PURPOSE: A duplexer for mobile communication is provided to prevent impedance mismatch and optimize transmitting characteristics of duplexer filter by improving the performance of filter. CONSTITUTION: A duplexer comprises a receiving unit(30) including a first MCC group(30d) for performing a coupling action with a plurality of dielectric resonators(DR) and input/output impedance control function, and a second MCC group(30d') for forming a plurality of attenuation poles at a stop band; and a transmitting unit(40) including a micro strip line(40e) for performing a coupling action with a plurality of dielectric resonators(DR) and input/output impedance control function, a third MCC group(40d) for forming a plurality of attenuation poles at a stop band, and a fourth MCC group(40d') for passage of a predetermined frequency band. The fourth MCC group of the transmitting unit has an MCC formed of an impedance matching element for providing a variable capacity for the input/output impedance matching between the micro strip line and the fourth MCC group.
Patent KR-20010051034-A (KR)
Title: Inspection apparatus
Inventor: MIYASHITA TAKETO
IPC: G01N21/95
Filed: 2000-10-14
Abstract: PURPOSE: To provide an inspection apparatus which is capable of properly inspecting a fine pattern keeping an environment, where a semiconductor wafer or the like is checked, maintaining high cleanliness. CONSTITUTION: An apparatus body 10, which inspects a semiconductor wafer or the like is housed inside a clean box 3, and clean air is supplied from a clean air unit 4 into the clean box 3 where the device body 10 is housed. An opening region 80 is provided to the side of the apparatus body 10, which is located to the side of the inspection stage 14 of the apparatus body 10, clean air supplied from a clean air unit 4 into the clean box 3 is made to pass over the inspection stage 14, where a semiconductor wafer is mounted and then discharged out of the clean box 3 through the opening region 80. By this setup, dust and the like produced inside the clean box 3 can be prevented effectively from adhering to the semiconductor wafer placed on the inspection stage 14.
Patent KR-20020029829-A (KR)
Title: Male connector of anti-lock brake system connector assembly for right angle type and method thereof
Inventor: NOH HUI CHANG
IPC: B60T8/34
Filed: 2000-10-14
Abstract: PURPOSE: A male connector of a connector assembly for a right angle type ABS(Anti-lock Brake System) and a method for manufacturing the same are provided to fold the male connector in the shape of "L" to be easily coupled with a female connector, thereby improving the assembling property of the ABS. CONSTITUTION: A male connector(110) of a connector assembly for a right angle type ABS includes a plurality of pins(111,112) folded and molded in a predetermined shape and fixed in the male connector, an inner holder and a guide holder(117) integrally formed at upper and lower parts of the pins, and a housing over molded outside the inner and guide holders.
Patent KR-20010051387-A (KR)
Inventor: HIRAYAMA TOMOSHI
IPC: G06Q30/02
Filed: 2000-11-01
Abstract: PURPOSE: To use musical piece data within the range of a use grant condition corresponding to oiling quantity. CONSTITUTION: In a step S41, the residual quantity of gasoline remaining in a gasoline tank is detected, and in a step S42, a prescribed value given as a use grant condition is read. In a step S43, musical piece is reproduced. In a step S44, the consumption of gasoline is calculated, and waiting is performed until the calculated results surpass the use grant condition. The musical piece is reproduced during this time. In the step S44, when the consumption of gasoline is decided as surpassing the user grant condition, an advance is made to a step S45 to stop the musical piece reproduction, and in a step S46, the musical piece data of the musical piece are erased.
Patent KR-20020037157-A (KR)
Title: Rotation Monitor and there's display system
Inventor: JEON BYOUNG SU
IPC: G06F1/16
Filed: 2000-11-13
Abstract: PURPOSE: An H-V(Horizontal-Vertical) converter display system is provided to increase the number of lines that a user can show within a screen by converting a horizontal monitor into a vertical monitor. CONSTITUTION: When the monitor is rotated, a rotation signal(5) is sent to a CPU. The CPU drives a x-y converter(8) for changing the x-y signal of a TFT- LCD(Thin Film Transistor-Liquid Crystal Display) and does a screen driver(6) for changing a four-to-three screen into a three-to-four screen. After being stored to a VRAM(Video RAM) board(7), the three-to-four screen is used as an input signal of a display module. The x-y converter, a circuit changing the x-y coordinate of the input signal of the TFT-LCD, makes the ratio and image of the screen rotate in an angle of ninety degrees.
Patent KR-20020037423-A (KR)
Title: Reflection cup
Inventor: JUNG MIN U
IPC: A47G19/22
Filed: 2000-11-14
Abstract: PURPOSE: Provided is a reflective cup which forms a conic projection part in a curved form to release from a press machine in manufacturing the cup so that it minimizes the number of inferior goods. CONSTITUTION: The reflective cup is characterized by making lower ambivalence of the cup vertical and the center of lower bottom placed with keeping conic angle at approximately 90deg upwardly wherein the conic projection part(2) is formed and curved in an arch form at the lower part of a cup body(1). Patterns at the external side of the cup body are reflected against the conic projection part in the lower part of the cup body and this reflection light is reflected again by the projection part to the upper side of the cup.
Patent KR-20010077934-A (KR)
Title: Method for determining rewritable area of the optical disc and Apparatus for controlling recording/reproducing of the same
Inventor: PARK SANG ON
IPC: G11B7/00
Filed: 2000-11-29
Abstract: PURPOSE: A method for deciding a recordable area of an optical disk and a controlling device thereof are provided to improve recording and reproducing characteristic through switching a tracking error detect method by rapidly detecting the recordable area. CONSTITUTION: A non-recordable area contains a pit depth conveniently detected in a DPD(Differential Phase Detector) method. A tracking error in a recordable area is detected in a push-pull method. Herein, a recordable disk contains a head area in the recordable area detected by the DPD method. Therefore, the recordable area of the recordable disk is detected for being displayed as the head area. To detect the recordable area, a tracking error detect method is used for detecting a signal. In case of detecting the signal over a specific lever, the area is decided as an area applied by a corresponding tracking error detecting method.
Patent KR-20020044501-A (KR)
Title: Microwave Oven And Control Method Thereof
Inventor: CHO YEONG WON
IPC: H05B6/68
Filed: 2000-12-06
Abstract: PURPOSE: A microwave oven and a controlling method thereof are provided to break an input voltage when the input voltage exceeds a threshold voltage. CONSTITUTION: A microwave oven comprises a power supply(1), a high voltage transformer(7), a magnetron(9), a signal generator(27), and a power controller(11). The power supply(1) supplies an AC power. The high voltage transformer(7) generates a high voltage from the AC power. The magnetron(9) generates an electromagnetic wave by the high voltage. The signal generator(27) generates a control signal. When the voltage of the power supply(1) exceeds an upper threshold, the power controller(11) breaks an input power to the magnetron(9). When the power controller(11) determines that a current exceeds a threshold current, it breaks the input power to the magnetron(9) to make the magnetron(9) idle for a while.
Patent KR-20020045700-A (KR)
Title: A 3-Dimensional Sound Source Tracking Device Using A CCD Camera And A Mics
Inventor: PARK SEONG KEUN
IPC: H04N5/232
Filed: 2000-12-09
Abstract: PURPOSE: A three-dimensional sound source tracking system using a CCD camera and a microphone is provided to calculate a three-dimensional coordinate of a sound source in a space and to grasp the location of the sound source to move the camera toward the sound source. CONSTITUTION: A three-dimensional sound source tracking system(20) using a CCD camera and a microphone includes a camera(5) that converts an image into an electric signal, four microphones(1,2,3,4) arranged surrounding the camera, and a controller for calculating the three-dimensional position of a sound source from sound signals inputted to the microphones. The system further includes a single-axis driver and the first motor(37) for receiving one-axis coordinate among the outputs of the controller to move the camera, a two-axis driver and the second motor(38) for receiving a two-axis coordinate among the outputs of the controller to move the camera.
Patent KR-20010062457-A (KR)
Inventor: VANDERBERG BO HARALD
IPC: C23C14/48
Filed: 2000-12-15
Abstract: PURPOSE: A method of hardening a power supply for an ion implantation system is provided to reduce a loss time for ion beam. CONSTITUTION: More than one power supply to supply a voltage for several electrode is integrated with a switch system capable of mitigating overload of the electrode in which the power supply and the electrode are decoupled in a certain threshold. In addition, the method of hardening the power supply includes the steps of watching the electric current from at least one power supply driving more than one electrode, and of insulating the source from the electrode if the current is larger than a certain level of threshold by deciding the level at the threshold.
Patent KR-20010067449-A (KR)
Title: Fuel-delivery device for internal combustion engine in a vehicle
Inventor: SCHRECKENBERGER DIETER
IPC: F02M37/10
Filed: 2000-12-19
Abstract: PURPOSE: A fuel feeding device is provided to prevent formation of high fuel pressure which causes damage to parts. CONSTITUTION: A fuel feeding device(12) is arranged in a fuel storage tank, structure components as a filter(16), a check valve and a pressure governor(20) are disposed in the storage tank, in a feeding section between the fuel feeding device and an internal combustion engine. These components are connected to each other through a plastic holding member(36). The holding member is formed in an at least generally plate shape. Hydraulic connecting portions(44,48,50) between the fuel feeding device and structure components(16,20) and/or hydraulic connecting portions between the structure components are formed on the plastic holding member.
Patent KR-20020049684-A (KR)
Title: Method for fabricating gate of flash semiconductor device
Inventor: LEE HONG GU
IPC: H01L29/788
Filed: 2000-12-20
Abstract: PURPOSE: A method for fabricating a gate of a flash memory device is provided to guarantee sheet resistance, by forming Ti salicide after a control gate is formed by using polysilicon. CONSTITUTION: The first polysilicon layer is deposited on a substrate and is patterned to form a floating gate. An insulation layer is formed on the floating gate to insulate the floating gate from the control gate to be formed afterward. The second polysilicon layer is deposited on the substrate. A hard mask layer is formed on the second polysilicon layer. The hard mask layer and the second polysilicon layer are patterned by a predetermined control gate pattern. A final floating gate is formed through a self aligned etch(SAE) process. Ti is deposited on the substrate and a heat treatment process is performed to form TiSix.
Patent KR-20020050874-A (KR)
Title: An automatical power supply switching apparatus
Inventor: LEE CHANG YOUNG
IPC: H02H3/04
Filed: 2000-12-22
Abstract: PURPOSE: An auto voltage conversion device is provided to prevent a breakdown of a power supply unit by cutting off a load supply power temporarily in case of an overload. CONSTITUTION: A driving voltage generation unit(10) generates a power relay voltage, a relay voltage, and a circuit voltage. A phase current detector(80) and a neutral current detector(90) detect a phase current and a neutral current on a load line. A first and a second detected current output unit(20,30) rectify the detected phase current and the detected neutral current. A control IC(Integrated Circuit)(40) delays the outputs of the first and the second detected current output unit(20,30), and generates a relay driving control logic signal. A delay unit(45) determines an output delay time value of the control IC(40). A relay unit(60) includes a plurality of transistor(61-64) for generating a power relay driving junction point, a general load(102) cutoff junction point and a buzzer(103) driving junction point respectively, and a plurality of relay(65-68). An inductive load power unit(70,70') includes a power relay and a power transformer for starting an inductive load(100,101).
Patent KR-20010070340-A (KR)
Title: Method and apparatus for automatic position-finding assembling
Inventor: FUJIMORI JUN
IPC: B23P19/10
Filed: 2000-12-22
Abstract: PURPOSE: To provide a working algorithm for realizing the assembling work for inserting shaft members having an engaging part in order into a part, in which plural plates having an engaging part in the inner peripheral part thereof are overlapped with each other on the same shaft, and capable of easily setting the exploring operation and securely exploring the engaging position and lowering a computing burden when generating the command signal. CONSTITUTION: Two shafts to be translated with an end effector for holding a shaft member and two shafts to be moved while tilting are moved with compliance, and the pushing force is generated in one residual axial direction of the translation motion, and the movement of the center of the compliance in the radial direction is repeated while displacing the phase till the engagement position is found. In the case where the engagement is not found within the predetermined time, the pushing force is released once, and thereafter, the ordinary exploring work is performed.
Patent KR-20020050987-A (KR)
Title: Oxidation catalyst for remonal of chlorinated volatile organic compounds and method for preparing thereof
Inventor: KO DONG JUN
IPC: B01J29/076
Filed: 2000-12-22
Abstract: PURPOSE: To remove chlorinated volatile organic compounds in flue gas, an oxidation catalyst that is pretreated with acid is supported with 1 to 10wt.% of a chromic oxide. By passing flue gas through the oxidation catalyst in the oxidizing condition of 200 to 700deg.C, chlorinated volatile organic compounds can be decomposed with CO2, H2O, HCl and Cl2. CONSTITUTION: The method for preparing oxidation catalyst comprises the steps of (i) the producing stage of oxidation catalyst by fixing 1 to 10wt.% of chromic oxide on the acid treated natural zeolite support; (ii) the contact stage of flue gas with the oxidation catalyst in the oxidizing condition of 200 to 700deg.C. The natural zeolite is treated with HCl or nitric acid solution and the weight ratio of Si/Al is over 6.
Patent KR-20020054471-A (KR)
Title: Energy saving operation at cooling in inverter type room air conditioner
Inventor: PARK JONG HAN
IPC: F24F5/00
Filed: 2000-12-28
Abstract: PURPOSE: A heating system of ceiling cassette type air conditioner using gas burner and control method of the same are provided to increase heating performance and reduce maintenance cost by applying a gas burner. CONSTITUTION: A system includes a ceiling type air conditioner(12); a gas burner(14) installed on one side of the ceiling type air conditioner; a heat exchanger(16) installed in the gas burner to be heated when the gas burner works; a heat exchanger temperature sensor(18) installed on one side of the heat exchanger to detect temperature of the heat exchanger; an indoor air intake fan(20) installed in the gas burner and driven when temperature of the heat exchanger is over fixed value; a duct(22) connecting the gas burner and an outlet of the ceiling type air conditioner; a duct outlet temperature sensor(24) installed on an end of the duct to detect temperature of intake air; a turbo fan(26) installed on the outlet of the ceiling type air conditioner and driven when temperature of intake air is over fixed value; and a microcomputer controlling the gas burner, the indoor air intake fan and the turbo fan.
Patent KR-20010021628-A (KR)
Title: 반도체 캐리어 및 디바이스를 위한 열전달 향상기구
IPC: G01R31/26
Filed: 1998-06-01
Abstract: 열전달 향상기구는 반도체 디바이스나 집적회로 칩 패키지를 열처리하며 운송하는 트레이 내에 형성되어 있다. 유체흐름에 수직이며 위로 뻗어있는 리브는 테스트중의 디바이스 근처에 있는 유체흐름의 혼합을 증가시키기 위하여 트레이에 및/또는 패키지에 형성되어서, 디바이스로부터 또는 디바이스로의 대류식 열전달을 향상시킨다. 또한, 아래로 뻗어있는 리브는 트레이 및/또는 패키지에 형성되어 있다. 트레이에 형성되어 있으며 위 아래로 뻗어있는 리브는 트레이를 쌓아올리는 것을 용이하게 하기 위한 파상배치 관계에 있다.
Patent KR-20010022329-A (KR)
Title: 접철식 스테이지
IPC: E04H3/28
Filed: 1998-07-30
Abstract: 접철식 스테이지(20)는 중앙 록(40)을 해제하는 곳에 교차부재(62, 64)를 갖는 접철식 링크기구(30)를 포함한다. 이 중앙 록(40)은 조작자의 손과 손가락을 보호하기 위해 교차부재(62, 64)하부 및 규차부재(62, 64)의 측면으로 편위된 핸들을 구비한다. 접철식 링크기구(30)는 스테이지 데크(24)의 저면이 서로 대향되는 저장위치에 보관위치를 형성하기 위해서, 스테이지 데크(24)가 수평으로 배치되는 사용위치로부터 접힌다. 완전히 접힌위치에서, 스테이지 지지다리(28)는 약간 안쪽으로 경사져 있다. 카스터(90)는 바닥면과 충분한 접촉을 유지하는 동안 다리(28)에 대한 내부의 이동을 줄이기 위해서 신축형 다리에 대해 어떤 각도로 경사지게 장착되며 신축형 다리(28)에 근접하게 이동된다. 토션바(78)는 프레임(22)의 피봇 억세스에 장착되며, 신축형 다리(28)는 접히는 속도를 조절한다. 프레임(22)의 접절부와 데크(24)는 피봇 억세스를 지님으로써 피봇축에 대해 내부이동을 감소시킨다.
Patent KR-20010022741-A (KR)
IPC: C12P21/08
Filed: 1998-08-05
Abstract: 본 발명은 23 킬로달톤의 폴리펩티드를 코딩하는 단리된 노화 관련 핵산 분자 (p23), 배양 세포에서의 23 킬로달톤 폴리펩티드의 발현 방법, 재조합 p23 폴리펩티드, p23의 발현 벡터 및 숙주 세포와, p23에 대한 항체를 제공한다.  본 발명은 또한 p23을 사용한 노화 조절 방법, 및 생물학적 시료에서의 p23의 발현 측정법을 제공한다.
Patent KR-20010023585-A (KR)
Title: 보호 회로
IPC: H01L27/04
Filed: 1998-07-13
Abstract: 본 발명은 정전 방전, 소위 ESD에 대하여 집적 회로를 보호하는 보호 회로에 관한 것이다. 집적 회로는 V cc 패드(2) 및 접지 패드(3)를 통해 공급 전압에 접속된다. 특히, 부 및 정의 전압 펄스 모두에 대하여 무선 주파수 응용을 위해 정으로 공급되는 회로를 보호하도록 의도된 보호 회로는 입력 패드(14) 및 적어도 하나의 PNP 트랜지스터(20)를 포함하는데, 입력 패드는 집적 회로에 접속되고, PNP 트랜지스터는 자체의 콜렉터가 입력 패드에 접속되고, 자체의 에미터가 V cc 패드 또는 접지 패드 중 하나에 접속된다. PNP 트랜지스터의 베이스는 직접 또는 저항기(24)를 통해 에미터에 접속될 수 있거나 접속되지 않을 수 있다.
Patent KR-20010030580-A (KR)
IPC: B05C5/04
Filed: 1999-06-24
Abstract: The applicator device (AV) for hot-melt adhesive (HK) comprises a housing (1) with an adhesive feeder element (2) and an adjustable nozzle slot (3) to let out the adhesive by pressure. The nozzle slot (3) can be adjusted by means of two nozzle sliders (4) that can be displaced linearly and continuously towards each other from a zero position to a maximum open position with the purpose of adjusting the width (B) of the adhesive applicator. Both sliders (4) are displaced synchronously or independently towards each other, whereby both sliders (4) can be displaced towards each other by the same distance and/or by a different distance from the center (0) of the application width (B) of the nozzle slot (3).
Patent KR-20010024131-A (KR)
Title: 제한 개구 건조 매질내에서 습윤 압력 적하를 감소시키는방법 및 이에 의해 제조된 제한 개구 건조 매질
IPC: D21F5/18
Filed: 1998-09-17
Abstract: 본 발명은 셀룰로즈성 섬유상 구조물을 건조시키기 위한 장치에 관한 것이다.  장치는 기공을 갖는 미세기공 매질을 포함한다.  기공은 건조 방법에서 사용되는 공기 흐름내의 제한 개구이다.  미세기공 매질은 상대적으로 낮은 압력 적하를 갖는다.  이 상대적으로 낮은 압력 적하는 건조시 사용되는 에너지 비용을 감소시키고/시키거나 일정한 에너지 비용에서 수득되는 건조를 더 크게 한다.
Patent KR-20010030654-A (KR)
Title: 유리질 물질의 처리
IPC: C03C21/00
Filed: 1998-09-18
Abstract: 기질로 사용하기 위한 유리질 물질 시이트는 코팅층의 적용과 관련된 가열단계 또는 기타 열처리 전에 시이트를 용융된 알칼리 금속염과 접촉시킴으로써 제조된다. 그렇게-처리된 시이트는 열 치수안정성이 향상해서, 열처리에 의해 적용되는 다양한 가열 및 냉각이 허용할 수 없는 유리질 물질의 수축량을 야기하지 않는다.
Patent KR-20010031504-A (KR)
IPC: C08K5/06
Filed: 1998-10-28
Abstract: Coating compositions comprising a binder (60-90 wt. %) and an organic carrier liquid (10-40 wt. %). The binder comprises (wt. % of binder): (a) hydroxy functional oligoether (5-50); (b) hydroxy functional (meth)acrylic copolymer (40-60), including cycloaliphatic (meth)acrylate comonomer and/or an alkyl substituted aromatic vinyl comonomer (at most 10) (c)polyisocyanate crosslinkers (5-40); and (d) a curing catalyst.
Patent KR-20010032944-A (KR)
IPC: C21B13/10
Filed: 1998-12-09
Abstract: A method for producing reduced iron in a layered furnace which includes several superimposed layers. Ore is continuously fed into the layered furnace, deposited on the uppermost layer, and gradually transferred to the lower layer. A reducing agent is deposited on the uppermost layer and/or layers thereunder and is reacted with the ore in order to form directly reduced iron. The directly reduced iron and reducing agent residues are discharged in the vicinity of the lowest layer of the furnace.
Patent KR-20010033602-A (KR)
Title: 반도체 장치와 그 제조 방법 및 반도체 장치의 설치 구조및 설치 방법
IPC: H01L23/485
Filed: 1999-01-20
Abstract: 복수의 전극패드(14)가 설치된 반도체 칩(12)상에, 절연막(16)을 각 전극패드(14)상에 개구(16a)를 설치하여 형성하고, 그 개구(16a)를 통해서 각 전극패드 (14)와 개별로 도통하는 복수의 하부전극(19)을 절연막(16)상에 설치하고, 그 각 하부전극(19)상에 각각 반도체 칩(12)의 측벽면(12b,12c)에서 돌출하는 복수의 돌기전극(22)을 설치하여 반도체 장치(1)를 구성한다. 그 반도체 칩(12) 측벽면을 회로기판과 대향시키고, 반도체 장치(1)를 회로기판에 설치하여, 그 돌기전극(22)을 기판상의 전극과 접속시킴으로써, 접속면적을 줄여 전자장치의 소형화를 가능하게 한다.
Patent KR-20010040472-A (KR)
Title: 변형 속도 의존성이 우수한 페라이트계 박 강판 및 그를사용한 자동차
IPC: C22C38/00
Filed: 1999-11-18
Abstract: 본 발명은 종래의 강판을 정적으로도 강화하고, 또한 동적인 강도 상승량도 저하시키지 않는 페라이트계 박 강판을 제공하는 것으로, 질량%로 Co 및/또는 Cr을 고용 상태로 합계 0.01% 이상, 4.0% 이하 페라이트 상 중에 포함하는 변형(strain) 속도 의존성이 우수한 페라이트계 박 강판.
Patent KR-20010040561-A (KR)
Title: 반도체 기판을 처리하기 위한 웨이퍼 캐리어 및 반도체장치
IPC: H01L21/205
Filed: 1999-02-01
Abstract: 웨이퍼 캐리어(34)는 평판의 원주위로 연장하는 평탄한 엣지영역(31)을 갖춘 원형 평판으로 구성된다.  상기 평판은 오목한 바닥표면을 갖춘 원형의 오목한 중심부를 가지며 상기 오목한 바닥표면의 줘변부에 상향 경사진 표면(33)을 포함한다.  기판(35)은 상향 경사면의 일부분에 의해 지지되고 기판이 엣지 주변에서만 지지되도록 오목한 바닥 표면으로부터 이격된 중심부에 놓인다.  웨이퍼 캐리어는 기판과의 표면 접촉을 최소화함으로써 기판 배면에 대한 금속 오염 및 표면 손상을 최소화하고 기판 배면상의 피복을 방지한다.