baber/WOPTO huggingface dataset:
Patent KR-20000051258-A (KR)
Title: Secondary battery
Inventor: NAM SANG GON
IPC: H01M10/02
Filed: 1999-01-20
Abstract: PURPOSE: A secondary battery is provided to facilitate welding process by inserting electrode roll into the internal part of a can and by preventing cap assembly from going inside a can. CONSTITUTION: A secondary battery includes the following components. An aperture of a can(30) is sloped in order to make the electrode roll(28) be inserted into the inside part of a can(30). An anode(22), cathode(24), and a separator(26) is attached to an electrode roll(28). An electrode roll(28) is pressed and inserted into the inside part of a can(30). An upper insulating plate(34) and a lower insulating plate(36) are attached to an electrode roll(28) so as to prevent an electrode roll(28), can(30), and a cap assembly(32) from contacting one another. An aperture of a can(30) is welded after a cap assembly(32) is attached. The device facilitates welding process by preventing any margin of can(30) and cap assembly(32) from occurring. A cap assembly(32) which is pressed from an aperture of a can(30) is prevented to be inserted into the internal part of a can(30) which stops an electrode roll(28) from being damaged.
Patent KR-19990037796-A (KR)
Title: 씨피유와씨피유냉각기를접합하는접착재
Filed: 1999-01-21
Abstract: 일반적으로 컴퓨터나 각종 전자제어장치(회로)의 핵심부품으로 사용되는 CPU는 클럭주파수가 약 800㎒인 경우 표면온도가 약 450℃ 까지 상승되며, 셀러론 300㎒ CPU의 경우 표면온도가 약 250℃까지 상승되며, CPU의 안정적인 동작을 위하여 CPU의 표면에 냉각기(방열기)를 부착하여 CPU의 표면온도를 약 75℃ 이하의 온도로 냉각(방열)시키고 있으며, 바람직하기로는 CPU의 표면온도를 약 65℃ 이하로 냉각시킴이 바람직하다. 
     한편, CPU와 CPU 냉각기를 접합시킬 때 서로 접촉하는 면이 완벽하게 고르지 못한 편이므로 접촉면을 확대해 볼 때 미세한 요철(공극)에 의해 실제로 접촉되는 면적이 약 50% 전후이므로 열전도율과 방열효율이 떨어지는 문제점이 있다. 
     따라서, 도 1과 같이 CPU(2)와 CPU 냉각기(4)를 접합할 때 내열성과 열전도율이 비교적 우수한 실리콘 그리스 또는 실리콘 실(seal)과 같은 액체상태의 접착재(6)를 약 0.5㎜~1㎜ 전후의 두께로 도포한 다음 접착시켜 미세한 요철이 메워지게 함으로써 열전도율과 방열효율을 향상시키도록 하고 있으나, 실리콘 그리스의 경우 점도가 낮아서 혼합도가 좋고 또한 내열성이 있어서 경화되지 않는 잇점은 있으나 열전도재로서의 기능보다는 단열재 역활을 하게 되므로 열전도율이 오히려 떨어져 CPU(2)의 온도가 별로 떨어지지 않는 등의 문제점이 있었다. 
     따라서, 본 발명은 CPU(2)와 CPU 냉각기(4)를 접합할 때 사용하는 접착재(6a)(6b)를 제조할 때 열전도율이 우수하고 입도가 미세한 구리 파우더 또는알루미늄 파우더과 같은 금속 파우더(8)를 적당량 혼합하여 접착재(6a)의 접착력을 떨어뜨리지 않으면서도 금속 파우더(8)에 의한 열전도율을 크게 증가시켜 CPU(2)의 방열효율(냉각효율)을 크게 향상시키도록 한 것이다. 
     또한, 합성고무 또는 천연고무와 금속파우더를 적당한 비율로 혼합하여 연성을 갖는 고체혀의 접착재를 제조함으로써 액상 접착제와 같이 도포할 필요없이 적당한 크기로 간편히 절단시켜 사용하도록 함으로써 열전도율을 크게 증가시켜 CPU(2)의 방열효율(냉각효율)을 크게 향상시키도록 한 것이다.
Patent KR-20000055169-A (KR)
Inventor: CHOI OH SHIK
IPC: H04J3/00
Filed: 1999-02-03
Abstract: PURPOSE: An asynchronous signal multi transmission apparatus is provided to multiply and transmit signals through a single transmission route when transmitting asynchronous signals, to reversely multiply the multiplied signals received from the destination and connect the signals to the original destination, and to divide and display the reversely multiplied signals received by a personal computer, if necessary, through windows according to the respective routes, thereby maximizing efficiency of signal circuits and communication equipment operation. CONSTITUTION: An asynchronous signal multi transmission apparatus comprises: a power supply section (21) for supplying electric power to respective circuits; a memory section (26) for storing operation programs; a central processing device (27) for controlling operation of the respective circuits by the stored programs; a series communication control section (31) for, controlled by the stored programs of the central processing device, jointly having external asynchronous signals and information; a real-time clock section (22) for jointly having the data with the central processing device and generating a real-time; a crystal liquid display section (23) for jointly having the data with the central processing device and displaying operation and time of the asynchronous signal multi transmission device; a periphery signal control section (32) for, controlled by the central processing device, controlling signals of periphery elements; a modem matching section (29) for jointly having the data with the central processing device and transmitting the multiplied signals to a long distance; a RS-232 signal converting section (30) for jointly having information with the series communication control section and according standards of the external device and signals; an initialized signal generating section (25) for transmitting signals to the central processing device and peripheral elements and initializing the same; and a clock generation section (24) for generating clocks necessary for the central processing device and the peripheral elements.
Patent KR-19990077425-A (KR)
IPC: G06F9/44
Filed: 1999-02-12
Abstract: 본 발명에 따라 정적 클래스 계층(static class hierarchy)과 비정적 클래스 계층(non-static class hierarchy)의 두 상속(inheritance) 계층을 갖는 객체 지향 프로그래밍 소프트웨어 아키텍처를 사용하여 데이터 처리를 수행하는 데이터 처리 장치가 개시되며, 그 데이터 처리 장치는 정적 계층의 정적 클래스에 대한 메소드 호출을 수신하되, 각 메소드 호출은 특정 메소드가 데이터 처리 장치에 의해 처리되는 것을 요구하는 수단과, 정적 클래스 내의 정적 포인터를 사용하여 수신된 메소드 호출을 비정적 계층의 비정적 클래스의 인스턴스로 재전송하되, 그 인스턴스는 수신된 메소드 호출에서 요구된 메소드의 구현을 제공하는 수단을 포함한다.
Patent KR-19990077664-A (KR)
Title: 유리기판에 단차부를 갖는 액정 표시장치 및 그 제조방법
IPC: H05K3/32
Filed: 1999-03-06
Abstract: 액정 표시장치에 있어서, 유리기판(1)은 그 엣지에 접속단자(1a) 및 단차부(1b)를 구비한다.     액정 표시 패널(2)은 상기 유리기판상에 장착되며, 상기 접속단자에 전기적으로 접속된다.     플렉서블 인쇄기판(3)은 리드(3a) 및 상기 리드를 부분적으로 도포하는 절연층(3b)을 구비한다.     상기 유리기판의 단차부가 상기 절연층의 엣지를 수용하도록, 상기 접속단자가 도전성 접착제(4)에 의해 상기 리드에 접속된다.
Patent KR-20000059906-A (KR)
Inventor: LEE GUN SEOK
IPC: F24C7/08
Filed: 1999-03-09
Abstract: PURPOSE: A method is provided to achieve an improved reliability and prevent non-uniform heating of food or areas which are overcooked or undercooked. CONSTITUTION: A method comprises a first step of judging whether a control key signal input exists by a micro computer, a second step of judging whether the control key signal is input in odd times if it is judged in the first step that the control key signal exists, a third step of judging that a wrap is covering the food if it is judged in the second step that the control key signal is input in odd times, and calculating a first surface temperature by applying a wrap surface temperature determined by an output of an infrared sensor to a first formula, and a fourth step of judging that a lid is covering the vessel if it is judged in the second step that the control key signal is input in even times, and calculating a second surface temperature by applying a lid surface temperature determined by an output of the infrared sensor to a second formula, and a fifth step of heating the food until the temperature calculated in the third and fourth steps reaches a preset cook temperature.
Patent KR-20000060307-A (KR)
Inventor: LEE DONG HO
IPC: C08L23/00
Filed: 1999-03-13
Abstract: PURPOSE: A flame-retardant thermoplastic resin composition is provided, that is low in fumes and improved in a drip-resistance in the combustion and can be used as a polymer coating material for a cable. CONSTITUTION: The flame-retardant thermoplastic resin composition comprises 100 pts.wt. of an alone or a mixture of two or more thermoplastic polyolefinic resins; 50 to 180 pts.wt. of a nonhalogen flame-retardant; 1 to 20 pts.wt. of an additive of silicon; 3 to 50 pts.wt. of the compound consisting of zinc and boron; and 0.5 to 6 pts.wt. of an antioxidant.
Patent KR-20000061581-A (KR)
Inventor: KIM YOUNG BUM
IPC: E03D9/04
Filed: 1999-03-27
Abstract: PURPOSE: A toiletstool apparatus having reek removing device and a controlling method thereof are provided to remove the reek which occurs when man has a bowel movement by spreading a little aromatic. CONSTITUTION: A toiletstool apparatus having a reek removing device comprises a toiletstool having a reek outlet(6) and a fan that takes away the reek, a water tank(2), a toiletstool cover(3), a contacts, a spring, and an upper and lower cover of sitting part. In a controlling method for a toiletstool apparatus, the upper cover of sitting part goes down when man has a bowel movement and then the contacts are connected, while the upper cover goes up when man stands up and then the contacts are not connected. The contacts are connected to electric wire, and the state of contacts is transferred to a sitting part through the electric wire. A micro computer U1 judges the condition according to the on or off signal of sensor S1 of sitting part. The fan driver part comprises resistance R2, transistor Q1, relay K1 to drive the fan according to the input of U1. The controlling part comprises resistance R3, transistor Q2, relay K2 to drive the driving motor in order to spread an aromatic. The aromic spreader spreads the aromatic when a spreading button of aromatic is pressed by a cam while the driving motor that is united with a cam rotates, and then the aromatic is spreading.
Patent KR-19990082941-A (KR)
Title: 집적 회로 상호 접속 방법 및 장치
IPC: H01L23/32
Filed: 1999-04-06
Abstract: 반도체 장치(10) 패키지 방법은 반도체 장치에 전기 접속하기 위해 부착 포인트들(22)이 제1 영역(31)에 놓이도록 구획(distribution) 기판(20, 40)을 영역들(31-34)로 구획한다. 제1 세트의 반도체들은 부착 포인트들의 일부에서 제2 영역(32)의 터미널 까지 루트가 정해진다. 부착 포인트들의 다른 부분은 제2 영역의 맞은편에 있는 제3 영역(33)으로 제2 세트의 반도체들을 배치하기 위해 제2 영역의 유효한 루팅 채널들에 할당된다. 구획하기는 오브젝트를 그리드 포인트들에 위치시키거나 루팅 채널들의 각도들을 제한시킬 필요 없이 루팅 효율을 향상시킨다.
Patent KR-20000067008-A (KR)
Inventor: LEE HUI SEONG
IPC: G11B20/10
Filed: 1999-04-22
Abstract: PURPOSE: An apparatus for replaying MPEG music file of car audio system receives and replays MPEG music file provided form a digital wireless communication service company through a wireless communication network in real time, and outputs it as a music sound. CONSTITUTION: A terminal(10) receives MP3 file from a digital wireless communication service company by performing the bidirectional communication with a wireless communication network, and decodes the received MP3 file. An interface(20) transmits the MP3 file transmission request signal to the terminal by performing the bidirectional communication with the terminal, stores the MP3 film decoded by the terminal in a data memory unit(21), reads the predetermined MP3 file stored in the data memory unit, transmits it to a controller(30) when a read signal outputted from the controller is inputted, and cancels the MP3 file stored in the data memory when a deletion signal outputted from the controller is inputted. A D/A converter(40) converts the MP3 file into an analog signal. An audio output unit(50) receives the analog signal, and outputs it as a musical sound.
Patent KR-19990073169-A (KR)
Title: 직류및교류전류혼합아크용접기및그용접방법
Filed: 1999-06-15
Abstract: 본 발명은 직류전원과 교류전원 발생장치를 본체 내에 일체로 형성하고 스위칭 수단에 의해 용접시 직류전원에 일정비율의 교류전원을 혼합함에 따라 솔리드 와이어 및 모재측의 용융 조건에 해당되는 전압, 전류를 적절히 공급시킴으로써 용접전류의 직류, 교류전류를 혼합한 아크회로는 직류 및 교류상의 단점을 상호 보완하고 용접시 가장 중요한 용적의 이행시 입자의 크기변화, 이행 속도의 변화, 용접부에 열량 공급조절, 양호한 아크 상태유지 및 스패터 발생을 억제할 수 있어 최적의 용접조건을 부여할 수 있도록 하는 직류 및 교류 혼합용 용접기 및 그 용접방법에 관한 것이다. 
     이를 위하여 본 발명은 직류 또는 교류용접전류에 의해 용접토치에 연결된 용접봉과 모재 사이에 아크를 발생하여 용접하는 아크 용접기에 있어서, 상용전원에 의해 안정된 직류용접전원을 출력하는 직류용접장치와, 안정된 교류전원을 출력하는 교류용접장치가 구비되고, 상기 직류 및 교류용접장치의 일측 출력단에 사이에 연결되어 상기 용접토치 또는 모재에 직류 및 교류용접전류를 혼합하여 공급하거나, 직류용접전류 만을 공급하는 제 1 스위치가 연결되고, 상기 제 2 스위치의 일측단과 교류용접장치의 타측 출력단에 접속되어 용접토치와 모재 사이에 폐회로를 구성하는 제 2 스위치를 포함하여 구성된 것에 특징이 있다.
Patent KR-20010008508-A (KR)
Inventor: KIM SU HO
IPC: H01L21/76
Filed: 1999-07-01
Abstract: PURPOSE: A method for manufacturing an isolation layer of a semiconductor device is provided to control a decrease of a threshold voltage caused by a parasitic transistor by rounding a sharp profile at an edge of an active region, and to improve a gate oxide integrity(GOI) characteristic and a cell junction leakage current characteristic by eliminating a damaged region in an etching process together with a sacrificial oxide layer. CONSTITUTION: After a pad oxide layer(20) and a nitride layer(30) are deposited on a semiconductor substrate(10), a part of the substrate where an isolation layer is to be formed is etched to form a trench part through a field mask. A sacrificial layer is formed on a sidewall of the trench part while N2 gas and O2 gas flow wherein a ratio of O2 regarding N2 is controlled within a scope of one percent or less. The sacrificial oxide layer is eliminated and an oxide layer(52) is formed on a sidewall of the trench part. After a regular oxide layer is formed on the entire trench part and a gap fill oxide layer(60) is deposited, a planarization process is carried out to expose the nitride layer. The nitride layer and the pad oxide layer are eliminated.
Patent KR-20010010313-A (KR)
Inventor: HEDEKI HORI
IPC: H01L21/28
Filed: 1999-07-19
Abstract: PURPOSE: A method for forming an electrode using an electric plating is provided to prevent a slope etching of a lower electrode and makes a complete cell division, by forming a passivation layer having an etching ratio lower than a seed layer on Pt electrode. CONSTITUTION: An interfacial insulation layer(42) including a contact hole is formed on a substrate(40). A conductive plug(48) is formed on the contact hole. A seed layer is formed on the conductive plug and the interfacial insulation layer. An electrode(56) covering the conductive plug and a passivation layer having an etching ratio lower than the seed layer are sequentially formed on the seed layer. The seed layer around the electrode is removed. The passivation layer is removed. Thereby, the method for forming an electrode using an electric plating forming a passivation layer having an etching ratio lower than a seed layer on Pt electrode, and thus prevents a slope etching of a lower electrode and makes a complete cell division.
Patent KR-20010010360-A (KR)
Title: Hand-free device having remote control
Inventor: PARK YONG JUN
IPC: H04B1/38
Filed: 1999-07-19
Abstract: PURPOSE: A hands-free device having a remote control is provided to easily and safely use a mobile telephone without connecting the mobile telephone in a holder. CONSTITUTION: A wave transmitting-receiving unit is connected with a mobile telephone. The mobile telephone has a transmitting-receiving unit to be connected with the hands-free device through wave. A circuit is installed for operating mobile telephone wirelessly and automatically operating all kinds of telephone circuits according to the wave signal outputted from the hands-free device. The circuit and a button for operating the mobile telephone are installed in a frame of a vehicle steering wheel or a handle of a motorcycle.
Patent KR-20000017050-A (KR)
Inventor: BANGDIKE MICHEL
IPC: B01D53/68
Filed: 1999-08-04
Abstract: PURPOSE: An anti-dampness process of flue gas is provided to prevent the spraying nozzle of a reactor from blocking by removing carbonate before mixing with white pigments inside a tank of an industrial water feed circuit. CONSTITUTION: The equipment for processing flue gas has a reactor(1) that feeds flu gas and white pigments, industrial water or industrial waste water mixture are sprayed by a nozzle(10) on flue gas. The mixture is made in a port(11) of the nozzle opening, the port is fed by a feed circuit(7) and current speed is controlled by a control valve(7A) according to temperature at the reactor exit. The current speed of white pigments is also controlled by a control valve(6A) according to the amount of polluter that remains inside flu gas measured at the reactor opening.
Patent KR-20010017152-A (KR)
Inventor: KIM DEOK JUNG
IPC: H01L21/205
Filed: 1999-08-09
Abstract: PURPOSE: A method for using purge gas of a low pressure chemical vapor deposition(LPCVD) equipment having a load lock chamber is provided to prevent a particle from being scattered by an air current and contaminating a wafer, by a pressure difference when a shutter between a process chamber and the load lock chamber is opened by continuously supplying the purge gas. CONSTITUTION: Purge gas is not supplied to a load lock chamber(30) and a process chamber from when a shutter(25) between the load lock chamber and the process chamber is opened a predetermined interval of time before the shutter is supposed to be opened, to when the shutter is closed. The predetermined interval of time is after the purge gas supplied to a chamber is interrupted and before pressures of the load lock chamber and the process chamber become equal.
Patent KR-20010019838-A (KR)
Inventor: HAN JEONG RYONG
IPC: H01R13/46
Filed: 1999-08-31
Abstract: PURPOSE: A plug having a fuse with a LED is provided to easily change a fuse in a plug without disassembling an electronic product by having a fuse connector installed inside the electronic product in the plug, and to easily take notice of whether or not the fuse is disconnected by installing a LED between the fuse connector and a power supply code. CONSTITUTION: A plug(1) having a fuse with a LED includes the following units. A U-shaped fuse terminal(7) is disposed at both ends of the inside of a fuse casing(4), and applies a current while holding the fuse(5). The fuse casing(4) is disposed at the upper portion and sides of a molding body(2) by connecting one side of the fuse terminal(7) to a power supply terminal(3), and connecting the other side to an electric wire in a code(8).
Patent KR-20010026192-A (KR)
Inventor: SONG YEONG BOK
IPC: G09G3/296
Filed: 1999-09-03
Abstract: PURPOSE: A recording pulse embodying method and apparatus in a plasma display panel are provided to improve a contrast of a cell image by reducing a discharge radiation intensity and producing a stable wall charge. CONSTITUTION: A recording voltage generator(125) generates a recording pulse having a voltage and pulse width which discharges a recording with respect to a total cell between scan electrodes(Y1-Ym) and sustain electrodes(Z1-Zm). A recording voltage delay means(127) controls the recording voltage generated by the recording voltage generator(125) to have an integral feature which is increased with a gentle slope. A sustain voltage generator(123) generates a pulse which is synchronous with a voltage which maintains a recording discharge with respect to a total cell between scan electrodes(Y1-Ym) and sustain electrodes(Z1-Zm) and having a phase opposite of that thereof. A voltage input/output section(121) applies a voltage of each pulse to one of the scan electrodes(Y1-Ym) and sustain electrodes(Z1-Zm), and discharges a voltage from other electrodes.
Patent KR-20000022926-A (KR)
Inventor: TOIA TANO
IPC: H04W36/12
Filed: 1999-09-06
Abstract: PURPOSE: A soft hand-off in cellular mobile communication network is provided to prevent an excessive control load in a mobile switching center during inter-BS(Base station system) soft-hand off and the waste of resources such as communication lines between a base station controller and the mobile switching center as well as to avoid a high-priced and complicated control method by performing the inter-BS soft-hand off. CONSTITUTION: Soft hand off between base stations under the control of adjacent base station controllers(441,442) is performed by using a hand off control unit provided in the base station controllers. In the configuration, the excessive cost increase is prevented because there is no need to provide the hand off controller in a mobile switching center(40), and also the excessive control load imposed on the mobile switching center is decreased by performing inter-BSC soft hand off without the meditation of the mobile switching center, and the lack of communication lines, caused by the excessive use between base station controllers and mobile switching centers can also prevented based upon the soft hand-off.
Patent KR-20010026611-A (KR)
Title: System and method for producing instant music video using luminance key
Inventor: KIM CHUNG HAN
IPC: H04N5/262
Filed: 1999-09-07
Abstract: PURPOSE: A system and a method for producing an instant music video using a luminance key is provided to instantly produce a music video by selecting one of pre-edited styles. CONSTITUTION: An edition style selection switch(6) comprises three edition keys. Three edition keys are composed of a slow edition key(1), a medium edition key(2), and a fast edition key(3). The edition style selection switch(6) selects one of three edition keys(1,2,3). A start switch(4) and a stop switch(5) are connected with a micro computer. A start synchronization signal is applied to the micro computer and each mechanism of the micro computer is operated thereby. An input switch circuit(7) determines a style of a music video.
Patent KR-20000023067-A (KR)
Inventor: HOSOKURA TADAS
IPC: B22F1/0545
Filed: 1999-09-10
Abstract: PURPOSE: A production method by a liquefying method is provided to produce metal powder of which the particle size is less than 10nm and to prevent the mixing of impurities caused by a reducing agent from generating. CONSTITUTION: Metal powder is produced by dissolving at least part of elements of alkali hydroxide, hydrazine or hydrazine hydrate and metal salt in a solvent containing at least alcohol. In this process, the metal powder consisted of metals included in the metal salt is extracted by reducing the metal salt by hydrazine or hydrazine hydrate. The hydrazine or hydrazine hydrate that is a reducing agent, hardly extracts impurities in the reduced metal. The metal powder is used in slimming of layered ceramic electronic components as a conductive paste for forming an inner conductor of the layered ceramic electronic components.
Patent KR-20010027236-A (KR)
Inventor: KIM SEOK RO
IPC: F25D25/00
Filed: 1999-09-11
Abstract: PURPOSE: A cooling air supply system for vegetable compartment of refrigerator is provided to maintain the temperature and humidity of vegetable tray optimum by controlling the volume of cooling air supply in accordance with the volume of load. CONSTITUTION: A vegetable tray(20) closed by a vegetable compartment cover(23), is equipped with a cooling air adjusting plate(22) arranged at the rear end of the vegetable tray. The cooling air adjusting plate formed of two metal sheets having different coefficient of thermal expansion, is automatically opened/closed in accordance with the indoor temperature of the vegetable tray, so as to supply/cut off the cooling air to/from the vegetable tray from a refrigerating compartment duct(14). Since the vegetable tray is spaced apart from an inner case of the refrigerator, an indirect cooling action is obtained through the cooling air flowing between the bottom of the vegetable tray and the inner case.
Patent KR-20010027358-A (KR)
Inventor: PARK WON NAM
IPC: G01S13/00
Filed: 1999-09-13
Abstract: PURPOSE: A device of adjusting the receiving gain of a radar system is provided to adjust the receiving gain of each period while preventing the saturation of signals received from short distances. CONSTITUTION: In a device of adjusting the receiving gain of a radar system, a transmitter(95) divides a transmission signal into ranges of rising, falling, CW transmission, non-transmission and sends out the divided signals. A receiver(90) receives a reflected signal and produces a signal of a middle range frequency. A high pass filter(70) limits the bandwidth of the receiver(90) within the ranges of rising and falling. A switch(75) chooses the output of the receiver(70) in the range of CW transmission and chooses the output of the high pass filter(70) in the ranges of rising and falling. A signal processor(80) processes the signal chosen by the switch(75) and produces data accordingly.
Patent KR-20000023210-A (KR)
Inventor: OKADA NORIO
IPC: H01L21/768
Filed: 1999-09-16
Abstract: PURPOSE: A semiconductor device and manufacturing method thereof is provided to decrease the number of process by forming a copper pad film on a last protection insulating film through a contact hole. CONSTITUTION: A protection insulating film(2) composed of an oxidation film having a trickiness of 3 to 4 micro meter thickness is formed on a semiconductor substrate(1). An interconnection trench(3) is formed on the protection insulating film(2). A priority layer copper wire(5) is formed on the interconnection trench(3) through a first barrier metal film(4) composed of a titanium nitration material having a thickness of about 50nms. A copper pad film(9) is formed to a center region of the priority layer copper wire(5) through a second barrier metal film(8). The second barrier metal film(8) is composed of a deposit film having a nickel film having a thickness of about 50nm thickness, a nickel film having a thickness of about 10nm thickness, and a gold film having a thickness of about 10nm.