baber/WOPTO huggingface dataset:
Patent KR-20000039751-A (KR)
Title: System and method for checking alignment of automotive wheel
Inventor: LEE GEUN SU
IPC: G01B7/315
Filed: 1998-12-15
Abstract: PURPOSE: A system and a method for checking an alignment of an automotive wheel are provided to find a minute misalignment of the wheel by checking the alignment after finding an independent vibration source. CONSTITUTION: A system for checking an alignment of an automotive wheel includes a standard sensor part(30) having four sensors for detecting vibration of the wheel and a responsive point sensor part(40) having a responsive sensor for detecting vibration of a vehicle body. A check commander(20) receives an alignment checking command, and a display(50) displays the checking results. A digital signal processor(10) receives the signals from the sensor parts(30,40), calculates the affection of the standard sensor to the responsive point sensor according to the signals, and determines if there is a misalignment in the wheel on the basis of the calculation results.
Patent KR-20000042678-A (KR)
Title: Controller of vending machine
Inventor: MIYATA YASHIKO
IPC: G07F11/00
Filed: 1998-12-26
Abstract: PURPOSE: A controller of a vending machine is provided to collect data concerning setup of control data, sales data, maintenance data and so on by using a general external terminal and a software. CONSTITUTION: To set up the control data of a vending machine, the screen display data of a control data set and control data in a ROM(4) and a RAM(5) are converted into a data type used in internet. The data are transmitted to an outer terminal(10) having an internet browser through an optical communication unit(6). An outer terminal(10) changes a set of data, and a main box(2) receives, converts the data and records the data in the RAM(5). To collect the data, marketing or maintenance information inside the RAM(5) is transmitted and displayed in the outer terminal(10) by conversion into the format such as HTML.
Patent KR-20000045611-A (KR)
Title: Method for hand gesture recognition using formal color distribution and direction histogram
Inventor: KIM NAM HO
IPC: G06K9/00
Filed: 1998-12-30
Abstract: PURPOSE: A method for hand gesture recognition using formal color distribution and direction histogram is disclosed to accentuate color distribution of complex environment's color change by using regular color distribution and direction histogram, which uses light intensity of image for color images that emphasizes on beige color. CONSTITUTION: A method for hand gesture recognition using formal color distribution and direction histogram is composed of conversion, accentuation, generation, and finalization. Color image is inputted and converted into formalized color(ST1)(ST2). The formalized color is then modeled as temporary draft distribution and an image, which accentuates the predetermined color, is created and glossiness is extracted(ST3)(ST4). Input image and training image's direction histogram is generated by the image that accentuates the predetermined color(ST5). The utility distance between input image and training image's direction histograms is compared, the glossiness of the predetermined color is finalized, and color image is recognized(ST6).
Patent KR-19990030444-A (KR)
Title: 설비함용 체결장치
Filed: 1998-12-31
Abstract: 본 발명은 통상 건물의 벽면에 설치되는 소화전함, 양수기함. 배전함 등 설 설비함의 케이스와 문틀과 도어를 조립하는데 사용되는 브라켓 및 힌지의 구조를 개선한 설비함용 체결장치에 관한 것이다. 
     본 발명은 케이스(10)와 문틀(20)을 조립하기 위한 브라켓(40)이 자력(磁力)에 의하여 케이스(10)의 턱(11) 안쪽에 임시 부착될 수 있도록 하기 위하여 브라켓(40)의 제3면(130)에 자석(140)을 부착시키고, 별도의 너트가 필요없이 볼트(25)로 체결하여 케이스(10)와 문틀(20)을 조립할 수 있도록 하기 위하여 브라켓(40)의 제1면(110)에는 암나사공(150)을 형성한다. 그리고 본 발명은 문틀(20)에 도어(30)를 조립하기 위한 힌지(200)는 단면이 7형으로 된 판스프링(210)과 가동핀(220)이 일체로 결합된 상태로 판스프링(210)의 일단을 도어(30)의 안쪽 귀퉁이쪽에 고정한다. 본 발명에 따른 브라켓(100)으로 케이스(10)와 문틀(20)의 체결작업을 편리하게 할 수 있으며, 본 발명에 따른 힌지(200)를 사용하여 도어(30)를 문틀(20)에 쉽게 탈착할 수 있다.
Patent KR-20000046795-A (KR)
Title: Analog/digital converting method
Inventor: YOON EUI SIK
IPC: H03M1/12
Filed: 1998-12-31
Abstract: PURPOSE: An analog/digital converting method is provided to enhance the reliability of operations through the reduction of ambient influences by basically reducing the aperture delay and the aperture jitter. CONSTITUTION: A method comprises the steps of: discharging electric charges within a capacitive array by a start command; obtaining an input signal during discharging the electric charges; finishing an obtaining mode at the same time the discharging is finished; fixing a final value by performing a consecutive approximation routine during a certain cycle; and initializing a start mode and an obtain mode of an offset sampling after fixing the final value and returning to a waiting state of the start command, to thereby enhance the reliability of operations.
Patent KR-20000047234-A (KR)
Title: Method for restoring abnormal processor in satellite communication system
Inventor: KIM SEON HUI
IPC: H04L12/24
Filed: 1998-12-31
Abstract: PURPOSE: A method for restoring an abnormal processor in the satellite communication system is provided to notify the status of an abnormal processor and to restore the abnormal processor automatically, in case that a central control station detects the abnormal processor while checking the operation states of processors. CONSTITUTION: An initial operation that a main processor and sub processors are driven sequentially is executed(ST1). A checking processor generates a check message to check the operation states of processors and sends the message to each subsystem through a UPH(Utility PCM Highway) bus(ST2). The checking processor confirms whether a check result message is received from each subsystem(ST3) and recognizes the processor of a subsystem, which didn't transmit the check result message, as an abnormal processor(ST4). The checking processor analyzes the check result message received from each subsystem(ST5). If a processor recognized as an abnormal processor exists, the checking processor sends the check result of the processor to a network management system(ST8).
Patent KR-19990035820-A (KR)
Title: 리콤비나아제 에이를 이용한 유전자 클로닝 방법
IPC: C12N15/09
Filed: 1996-07-16
Abstract: 본 발명은 DNA를 염기서열 특이적으로 클로닝하고 표지하는 방법에 관한 것이다.  본 발명의 방법에서는 우선, DNA를 움푹 들어간(recessed) 3' 말단을 생성하는 하나 또는 그 이상의 제한효소로 절단한 다음, 절단된 단편의 3' 말단에 상보적인 약 30  내지 60 베이스 길이의 올리고뉴클레오티드와 대장균 RecA 단백질을 첨가하여, DNA 중합효소에 의한 DNA 신장(elongation)을 방지함으로써 원하는 단편만이 움푹 들어간 3' 말단을 가지도록 제조하였다.  그런 다음, Rec A와 DNA 중합효소를 불활성화시키고, 전기의 단편과 상보적인 3' 말단을 포함하는 벡터에 라이게이션시켰다.
Patent KR-19990036298-A (KR)
Title: 시가레트 제조장치
IPC: A24C5/345
Filed: 1997-06-13
Abstract: 공급량이 제어되어 연속하여 공급되는 살담배를 장척의 권지에 연속하여 래핑하여 담배로드를 형성하고, 이 담배로드를 소정의 길이마다 절단하여 시가레트를 연속하여 제조할 때, 담배로드의 연속된 래핑에 연동하여 담배로드의 길이 방향 각부에서의 살담배의 충전량(충전밀도)을 연속하여 계측한다.  그리고, 담배로드의 각부에서의 충전량(순간값)을 미리 설정된 문턱치와 비교하여 살담배의 국부적인 과잉충전부분 및/또는 충전부족부분을 검출한다.  이 검출결과를 담배로드에서 연속하여 잘라내는 소정 길이의 시가레트의 이송타이밍에 동기시켜서 출력함으로써 살담배의 국부적인 과잉충전부분(하드 스폿)이나 충전부족부분(소프트 스폿)을 포함하는 시가레트의 확실한 배제를 가능하게 한다.
Patent KR-19990063698-A (KR)
Title: 전기전도성 중합체 및 그의 전구체를 해응집시키는 산화/환원방법 및 이에 의한 제품의 제조방법
IPC: C08J5/18
Filed: 1997-07-24
Abstract: 본 발명은 중합체 쇄가 해응집되는, 전기전도성 중합체 및 이의 전구체, 특히 폴리아닐린을 제조하는 산화방법 및 환원방법에 관한 것이다.  이러한 해응집된 전도성 중합체 및 이의 전구체는 상응하는 응집된 중합체보다 더 양호한 가공성 및 더 높은 전기 전도성을 나타낸다.  거의 비산화형태 또는 비환원된 형태(에메랄딘 형태)의 치환 및 비치환된 폴리아닐린을 해응집된 중간 환원상태 또는 중간 산화형태로 전환시키고; 중간 환원 또는 중간 산화된 해응집된 형태를 제품으로 가공하고; 상기 제품을 도판트 및 산화제 또는 환원제로 후속 처리하여 원래의 거의 비산화된 형태 또는 비환원된 형태를 개질시킨다.  본원에 기술된 방법은 해응집 구조 및 높은 전기전도성을 갖는 제품(성형 제품 및 필름)을 
형성한다.
Patent KR-20000005378-A (KR)
Title: Method of production of information recording carrier
Inventor: TAKAKUWA ATSUSHI
IPC: B29D17/00
Filed: 1998-03-13
Abstract: PURPOSE: A method of production of information recording carrier is provided to produce with high productivity an information recording carrier having small eccentricity and capable of high density recording. CONSTITUTION: The method of production of information recording carrier applies a curable resin to an original(1) having a pattern corresponding to necessary information, and forms projections(2), holes, recesses, or the like, on the surface of the original(1) so that they fit to an information recording carrier substrate when the pattern on the original is transferred to the information recording carrier substrate by bonding the original and the information recording carrier substrate.
Patent KR-20000016126-A (KR)
Title: Magnesium dichloride-alcohol adducts, process for their preparation and catalyst components obtained therefrom
Inventor: SACCHETTI MARIO
IPC: B01J31/02
Filed: 1998-03-23
Abstract: PURPOSE: A catalyst for the polymerization of olefin is provided to improve an activation and stereo specificity with respect to the catalyst being prepared from an adduct. CONSTITUTION: The present invention relates to MgCl2.mROH.nH2O adducts, where R is a C1-C10 alkyl, m same or greater than 2 and same or less than 4.2, n same or greater than 0 and same or less than 0.7, characterized by an X-ray diffraction spectrum in which, in the range of 2.thgr. diffraction angles between 5 and 15 degree the three main diffraction lines are present at diffraction angles 2.thgr. of 8.8 plus or minus 0.2 degree, 9.4 plus or minus 0.2 degree, and 9.8 plus or minus 0.2 degree the most intense diffraction lines being the one at 2.thgr.=8.8 plus or minus 0.2 degree the intensity of the other two diffraction lines being at least 0.2 times the intensity of the most intense diffraction line. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and stereo specificity with respect to the catalysts prepared from the adducts of the prior art.
Patent KR-20000051448-A (KR)
Inventor: HYEON SANG MOO
IPC: H01M2/02
Filed: 1999-01-22
Abstract: PURPOSE: A cap assembly of a secondary battery is provided to achieve compact size of the battery and secure the safety characteristics of the battery by equipping a polyswitch(PTC) the inside of secondary battery instead of equipping the outside of the secondary battery. CONSTITUTION: A cap assembly of a secondary battery includes a gasket(12) placed between a cathode plate(8) and an anode plate(10), and a rivet(14), in which an insulator(18) is attached, is pierced through the cathode plate(8) and the anode plate(10) to achieve the unification. Here, the rivet(14) is a polyswitch(PTC) manufactured by mixing a conductivity powered carbon and a polymer, or is the polymer or a glass including a wired fuse.
Patent KR-19990072564-A (KR)
Filed: 1999-02-10
Abstract: 본 발명은, 피부, 케라틴 섬유, 반점막 및/또는 점막에 도포할 수 있는 화장품용 또는 피부과학적 조성물에 있어서, 1,2-펜탄디올을 함유하는 항균 보호 시스템, 특히 항세균 및/또는 항진균 시스템과 결합한 필름 형성 중합체 입자의 수용성 분산물의 용도에 관한 것이다. 
     본 발명은 특히 입술 또는 바디용 메이크업 조성물에 관한 것이다.
Patent KR-20000056684-A (KR)
Inventor: KIM CHANG RYEOL
IPC: H04B7/26
Filed: 1999-02-25
Abstract: PURPOSE: A method for transmitting a voice message of a mobile telephone terminal, is provided to transmit a recorded voice message to a destination with an operation of a predetermined button or to perform direct speech by cutting off the voice message, when calling from the destination in a state that the voice message is recorded in the mobile telephone terminal to inform the destination of a present user state. CONSTITUTION: A method for transmitting a voice message of a mobile telephone terminal, comprises the steps of: storing data recording a voice message to inform a destination of a present user state indicating whether speech is capable, in a memory(S10); discriminating whether an incoming signal is received from the destination(S11); if so, discriminating whether a voice message function is set(S12); discriminating whether a message button is on, after blinking a lamp to inform that the voice message function is set and the incoming signal is received for a predetermined time(S13,14); if the message button is on, making the user perform direct speech by connecting to the destination, without transmitting the voice message stored in the memory(S15); if the message button is off, loading the voice message stored in the memory, to transmit to the destination passing a vocoder of the mobile telephone terminal(S16); making a telephone bell ring if the voice message function is not set up and the incoming signal is received(S17); discriminating whether a voice information button is on/off after ringing(S18); if the button is on, setting a voice message function and progressing to the S16 step(S19); if the button is off in the S18, discriminating whether an incoming button is on/off to progress to the S15 if the button is on, and to progress to the S17 if the button is off(S20); and converting into a speech standby state when the speech and message transmission steps are completed(S21).
Patent KR-20000060240-A (KR)
Inventor: CHO UN HO
IPC: G01R23/00
Filed: 1999-03-12
Abstract: PURPOSE: A calibration standard of a vector network measurement device for a waveguide is provided to automatically perform a calibration of a vector network measurement device of a waveguide, by embodying many impedances of LRL standard in one cylindrical structure, and automatically switching each impedance standard of a cylindrical structure by using a waveguide switching principle. CONSTITUTION: A vector network analyzer(20) performs an RF characteristic measurement function of a waveguide. LRL(line1, Reflection, Line2) standard is used for calibrating the vector network analyzer. A rotatable cylindrical structure(41) is positioned to an end point of a waveguide having a length of (lambda/2). The waveguide is connected to a coaxial-to-waveguide adapter(30) connected to a vector network analyzer's cable. LRL standard is mounted to the cylindrical structure(41). Impedance standard is automatically selected with a switching of a rotation of the cylindrical structure(41), and is connected to the waveguide. Thereby, a calibration of a vector network measurement device of a waveguide is automatically performed.
Patent KR-20000061050-A (KR)
Inventor: KIM WAN HA
IPC: B41J13/00
Filed: 1999-03-23
Abstract: PURPOSE: An apparatus for slipping a roller and an apparatus for preventing jam of a wet electro-photographic printer is provided to efficiently cope with a load change by controlling elasticity of an elastic member and a friction of a gear member and a friction member since the rotation frequency of a roller is changeable according to the load change. CONSTITUTION: An apparatus for preventing jam of a wet electro-photographic printer includes a transfer roller(76) closely adhered to a photo-sensitive medium and receiving the transfer of toner image on the photo-sensitive medium with drivenly rotating by circulation moving of the photo-sensitive medium, a fusing roller(80) installed to press the transfer roller at a predetermined pressure for rotating the toner image to settle the toner image on a print paper(78), a feeding roller(72) arranged to be separated at a predetermined gap from the point where the transfer roller and the fusing roller are contacted with each other, rotated at a rotation linear velocity faster than rotation linear velocity of the transfer roller in a predetermined rotational frequency, and pressed by a feeding backup roller(82) at a predetermined pressure, and a feeding roller slip unit for slipping the feeding roller when a load is generated on the print paper passing between the transfer roller and the fusing roller.
Patent KR-19990064511-A (KR)
IPC: H05B37/02
Filed: 1999-03-24
Abstract: 본 발명은 가로등이나 보안등 및 교통신호등, 기타 전등을 소정시각에 자동으로 정확하게 점, 소등하는 방법 및 그 장치이다. 종래의 무선원격제어방식에서 시간 보정 제어시의 비효율성을 해소하고 시계 I.C에 보관된 날짜 및 시간 정보에 따라 단순히 점, 소등을 제어하는 기존 타이머방식의 날짜 및 시간 정보 오류 상태를 근원적으로 해소하기 위하여는 플렉스(FLEX) 프로토콜 신호를 수신하여 가로등, 보안등 및 기타 전등을 자동제어한다. 구성은, 시계 I.C에 보관된 날짜 및 시간 정보에 따라 가로등, 보안등, 교통신호등 및 기타 전등을 자동으로 점, 소등하는 구동부분과 무선호출서비스 제공자들이 24시간 지속적으로 송신하는 플렉스 프로토콜 신호를 수신하여 날짜 및 시간 정보만을 추출한 후 이를 시계 I.C에 재저장하는 날짜 및 시간 보정부분으로 구성되어 있다.
Patent KR-20000065269-A (KR)
Inventor: KIM JUN SU
IPC: B22F7/00
Filed: 1999-04-01
Abstract: PURPOSE: A method for manufacturing a composite engine piston reinforced with an intermetallic compound is provided to simplify the manufacturing procedure by spontaneously pouring an aluminum alloy by a low pressure die-casting or gravity die-casting, and obtain an engine piston having excellent anti-abrasion and mechanical properties by forming an intermetallic compound. CONSTITUTION: A method for manufacturing a composite engine piston reinforced with an intermetallic compound includes the steps of adding Titanic powder to a nickel-chrome porous material or a Nickel porous material, heating the Nickel-Chrome porous material or the nickel porous material added with the Titanic powder at a temperature of 150°C or higher, and forming an intermetallic compound by a low pressure die-casting or gravity die-casting by pouring an aluminum alloy to the heated Nickel-Chrome porous material or the nickel porous material.
Patent KR-20000066512-A (KR)
Inventor: MUN SANG HEUP
IPC: H01L21/00
Filed: 1999-04-17
Abstract: PURPOSE: A method for an etching/evaporation simulation using a modified entropy condition is provided to greatly reduce the time needed to simulate an etching/evaporation section, by decreasing the time needed to distinguish if an etch point satisfies the entropy condition. CONSTITUTION: An etch point or evaporation point is designated. The etch point or evaporation point is distinguished according as a surface angle of the etch point or evaporation point is continuous or incontinuous. Regarding the etch point or evaporation point of the continuous surface angle, an etch rate or evaporation rate is obtained from a first formula. Regarding the etch point or evaporation point of the incontinuous surface angle, after checking if the etch point or evaporation point satisfies an entropy condition by using a discriminant, an etch rate or evaporation rate is obtained from a second formula only when the etch point or evaporation point satisfies the entropy condition. The etch point or evaporation point shifted by the etch rate or evaporation rate is obtained. A new surface is formed by connecting the shifted etch point with the shifted evaporation point. And, the same process are performed regarding the new surface.
Patent KR-19990088000-A (KR)
Title: 선택적제초제조성물
IPC: A01N43/824
Filed: 1999-04-30
Abstract: 유효 성분으로서 
     (a) 테트라졸리논, 및 
     (b) 하기 제초성 화합물: 설폰아미드, 트리아진, 카바메이트, 디페닐 에테르, 아세트아미드, 우레아, 페녹시프로피오네이트, 트리아졸, 옥사지논, 인단, 디카복스이미드, 피리딘, 포스포네이트, 벤조티아디아졸, 옥시아세트아미드, 벤조푸란, 아미드, 페녹시 유도체 및 옥사디아졸로 구성된 그룹으로부터 선택된 적어도 하나의 화합물을 포함하는 조성물은 논의 잡초를 선택적으로 방제하는데에 뛰어나게 효력이 있다.
Patent KR-20000067632-A (KR)
Inventor: KANG BYEONG SIK
IPC: F25B30/00
Filed: 1999-04-30
Abstract: PURPOSE: A method is provided to achieve a prompt system response to a user request and shorten time for reaching a target operating frequency. CONSTITUTION: A method comprises a first step(S40) of calculating a first increased frequency and converting the current frequency into a first converted frequency by increasing the current frequency by the amount of first increase frequency; a second step(S50) of having a frequency stabilization time period required for a system stabilization at the first converted frequency; a third step(S60) of calculating a second increased frequency from the first converted frequency and judging whether the second increased frequency is lower than the minimum frequency set in the system; and a fourth step(S70) of driving the system in accordance with the target frequency when reached the target frequency.
Patent KR-20000074091-A (KR)
Inventor: KIM HUI SEOK
IPC: H01L23/12
Filed: 1999-05-18
Abstract: PURPOSE: A method for manufacturing a ball grid array package is provided to prevent neighboring fluxes from being shorted even if a pitch between solder ball pads becomes finer, by temporarily applying heat to melt the fluxes when a solder ball is settled in the solder ball pads after flux of a predetermined thickness is applied on the surface of the solder ball. CONSTITUTION: A semiconductor chip having bonding pads is adhered to a surface of a board having conductive patterns and solder ball patterns by intervening an adhesive. An end of the conductive patterns is bonded to the bonding pads to electrically connect the semiconductor chip with the board. The side surface of the semiconductor chip and the surface of the board are molded by using an epoxy molding compound. After the solder ball pads exposed to the other side of the board and solder balls(150) absorbed to a solder ball fix jig are aligned, the solder balls are settled on the solder ball pads. The solder ball coated with flux is heated to completely connect the solder ball pads with the solder ball by a backward process.
Patent KR-20010001764-A (KR)
Inventor: JUNG DAE HO
IPC: H01L21/334
Filed: 1999-06-08
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to minimize contact resistance of a contact portion, by forming an upper portion of a gate electrode with an amorphous silicon layer, and by forming a metal silicide layer in the contact portion. CONSTITUTION: A field oxidation layer(12) is formed on a silicon substrate(11). A gate insulating layer(13), a polycrystalline silicon layer(14) for a gate and an amorphous silicon layer(15) are sequentially deposited on the silicon substrate. The polycrystalline silicon layer for a gate and the amorphous silicon layer are patterned to form a gate electrode. A source/drain region(17) is formed in the substrate on both sides of the gate electrode. A metal layer is deposited on the silicon substrate. The metal layer is annealed to form a metal silicide layer on the gate electrode.
Patent KR-20010003903-A (KR)
Inventor: MOON SUNG JU
IPC: A44C1/00
Filed: 1999-06-26
Abstract: PURPOSE: An accessory for a hair and clothes is provided, which is convenient to use and reduces the damage to the clothes due to the fixing pin at its back with a protruded hook at the back and another body with locking dent. CONSTITUTION: The accessory for a hair and clothes is characterized by being comprised of: the first fixing body having a protruded hook(126) at a center and a base(127) around the hook(126); the second fixing body having a locking dent(128) which is elastic and a base(129) around the dent(128). The two fixing body can be connected with a ring(130) for preventing loss upon using as a hair pin.
Patent KR-20010004331-A (KR)
Inventor: LEE IN HO
IPC: H02K7/00
Filed: 1999-06-28
Abstract: PURPOSE: A vibrator is provided to obtain a vibration force by a simple configuration by unifying a magnetic transformation device and a non-magnetic transformation device at a shaft so as for a vibration unit to be transformed. CONSTITUTION: A vibrator comprises a shaft(10), a vibration member(20), a coil(30) and a cover member(40). The vibration member(20) is formed by adhering a magnetic transformation device(21) and a non-magnetic transformation device(22) such that one end of the vibration member(20) is coupled to the shaft(10). The coil(30) is wound at an outer surface of the vibration member(20) so as to form a magnetic field according to an externally applied power. The cover member(40) consists of a bracket(41) for fixing the shaft(10) and a cover(42) for protecting the shaft(10), the vibration member(20) and the coil(30) from the exterior.
Patent KR-20010004996-A (KR)
Inventor: HAN JIN SU
IPC: H01L21/28
Filed: 1999-06-30
Abstract: PURPOSE: A method for making a semiconductor device is provided to prevent a deterioration of an electric characteristic of an element by compensating a mis-aligned structure between an upper metal wiring and a tungsten plug, and make a stable semiconductor device. CONSTITUTION: A lower metal wiring(12) and an interfacial insulating layer(13) are formed on a substrate(11) on which many components are formed to make a semiconductor. The interfacial insulating layer is partially etched, thereby forming a tungsten plug(15) connected to the lower metal wiring(12). An upper metal wiring(16) connected to the lower metal wiring is formed through the tungsten plug. A conductive layer is deposited to enhance both a contact characteristic and a tungsten plug burying characteristic, is then fully etched, thereby forming a spacer on a sidewall of the upper metal wiring(16).