baber/WOPTO huggingface dataset:
Patent KR-20070084846-A (KR)
Title: Method of producing star fish salt radiating far-infrared ray, and the salt radiating far-infrared rays produced by the method
Inventor: KIM NAM JONG
IPC: A23L27/40
Filed: 2006-02-22
Abstract: A method of manufacturing starfish powder-containing salt radiating far-infrared rays e is provided, which removes heavy metals by absorption into the container or evaporation, permits mineral ingredients useful for human body to be present in an oxidation form and thus produces salt useful as health supplementary food. A starfish powder-containing salt is prepared by the steps of: putting starfish powder into a heat-resistant container containing elvan and wood jade; putting the heat-resistant container into a furnace with an outer wall comprising a fire brick having three or more layers and having a coating layer containing the same component as that of the heat-resistant container at the inner most two layers of the fire brick and heating at 750 to 850deg.C for 6 to 8hr; cooling to room temperature; dissolving the obtained starfish salt in water; and evaporating the saline. The coating layer contains 15 to 40% by weight of elvan, 15 to 40% by weight of wood jade, 1 to 4% by weight of bentonite, 7 to 15% by weight of feldspar, 5 to 12% by weight of sodalite, 6 to 13% by weight of kaolin and 2 to 5% by weight of talc.
Patent KR-20060102489-A (KR)
Inventor: NOMOTO AKIHIRO
IPC: H01L21/027
Filed: 2006-02-23
Abstract: 원래, 도포액이 존재해서는 안 되는 영역에까지, 중력의 영향으로, 도포액이 존재하거나, 도포액이 고인 결과, 원하는 패턴을 얻는 것이 곤란하게 되는 문제점을 확실하게 해결할 수 있는 패턴형성방법을 제공한다. 도포액을 도포하기 위한 노즐(12)을 서브스트레이트(30)의 아래쪽에 배치하고, 습윤성이 제어된 서브스트레이트(30)의 면을 하측을 향하게 한 상태에서, 노즐(12)과 서브스트레이트(30)를 상대적으로 이동시킴으로써 서브스트레이트(30)의 원하는 영역에 도포액(21)을 입힌 후, 도포액(21)을 건조시켜서, 도포액 건조 층으로 이루어진 패턴을 얻는다. 
       
     도포액, 패턴, 노즐, 건조
Patent KR-20060095503-A (KR)
Inventor: HORVATH STEPHANE
IPC: C07D223/16
Filed: 2006-02-27
Abstract: 본 발명은 분말 X-선 회절(powder X-ray diffraction) 도표를 특징으로 하는 하기 화학식(Ⅰ)의 이바브라딘 히드로클로라이드의 γd-결정질 형태 또는 약제에 관한 것이다:
Patent KR-20060027850-A (KR)
Inventor: KIM JEUNG KIL
IPC: A24D1/02
Filed: 2006-03-08
Abstract: 기존의 담배는 앞부분이 뚫려있어서 담배각은 물론 주머니에 넣을을 경우 담뱃잎이 떨어져서 불편한 점이 이만저만이 아닙니다.(담배입은 종이에 말려져 안에 있는 것을 말합니다) 이점을 보완하고자 담배의 앞부분을 담배잎을 말고 있는 종이와 같은 재질로 막는 것입니다. 처음에 불을 붙이게되면 자연스럽게 타드러가며 기존의 담배와 같이 필수 있습니다. 
     담배 담배잎
Patent KR-20070093700-A (KR)
Title: Radio data system receiver and method for searching alternate frequency in the same
Inventor: KIM JOO CHEOL
IPC: H04B1/16
Filed: 2006-03-15
Abstract: A radio data system receiver and an alternate frequency searching method are provided to reduce a user inconvenience that a user should wait for a long time because a SEEK PI process is frequently performed. A tuner(110) receives a broadcast. A storage unit(340) stores radio data broadcast program frequency information. A controller(300) controls a process of performing a SEEK PI according to a user selection when a received broadcast signal is lower than a pre-set reference value. When quality of the received broadcast signal is lower than the pre-set reference value, a user interface processing unit(310) outputs an interface message allowing a user to select whether to perform a SEEK PI to an output unit(130).
Patent KR-20070095042-A (KR)
Title: Novel electron injection layer material and organic electroluminescence devices including the same
Inventor: KYUNG SUK HUN
IPC: C07F9/53
Filed: 2006-03-20
Abstract: A novel electron injection layer material is provided to secure excellent thin film forming property and stability. And an organic electroluminescent device comprising the same material is also provided to secure improved luminous efficiency, current density, brightness and driving voltage characteristic. An aryl phosphine oxide based- electron injection layer material is represented by the formula(1), wherein Ar1, Ar2 and Ar3 is the same or different from each other, and are C6-18 substituted or unsubstituted aryl or C6-18 substituted or unsubstituted heterocyclic group, and Y is O, S or Se. The organic electroluminescent device comprises a cathode, an anode, an electron transfer layer formed between the cathode and the anode, and an electron injection layer including the aryl phosphine oxide-based electron injection layer material and formed between the anode and the electron transfer layer.
Patent KR-20070096359-A (KR)
Title: Post structure and led using the structure and method of making the same
Inventor: BAE DUK KYU
IPC: H01L33/32
Filed: 2006-03-23
Abstract: A method for forming a pillar structure is provided to obtain a pillar structure of various types by varying the interval and arrangement of a pattern. A first material is formed on a substrate(10) to form a unit pattern. A second material(30) capable of being wet-etched is grown on the substrate including the unit pattern. The substrate having the grown second material is wet-etched. The process for forming the unit pattern includes the following steps. A first material layer is formed on the substrate. The first material layer is etched to form the unit pattern. The first material can be the same material as that of the substrate.
Patent KR-20070096690-A (KR)
Title: Assistant apparatus for guiding restricted area of parking and stop
Inventor: KIM CHEOL SUNG
IPC: E01F9/00
Filed: 2006-03-27
Abstract: An assistant apparatus for guiding a restricted area of parking and stop is provided to prevent the traffic congestion by installing the assistant apparatus on a boundary stone between a footway and a driveway. An assistant apparatus for guiding a restricted area of parking and stop comprises a plate part(110) and a display part(130). The plate part is fixed to a boundary stone between a footway and a driveway while making contact with an outer surface, an upper surface and an inner surface of the boundary stone. The display part has a sign for indicating that parking/stop is restricted. The plate part includes an outer plate(112), an upper plate(114) and an inner plate(116). The outer plate and upper plates make contact with the outer and upper surfaces, respectively.
Patent KR-20070097992-A (KR)
Title: Air-condition and the control method for the same
Inventor: KIM JONG IL
IPC: F25B1/00
Filed: 2006-03-30
Abstract: An air condition and a control method thereof are provided to prevent breakdown of a compressor and operate the compressor quickly by connecting the suction side and the discharge side of the compressor at the time of starting the compressor. An air condition comprises a plurality of compressors(14), an accumulator, and a pressure equalizing unit(20). The plural compressors compress the refrigerants. The accumulator is connected to the suction side of each compressor. The pressure equalizing unit connects the accumulator to the discharge side of each compressor. The accumulator is a common accumulator(40) connected with the plural compressors.
Patent KR-20070099239-A (KR)
Title: Retary. engine
Inventor: IM HAE MUN
IPC: F02B53/00
Filed: 2006-04-04
Abstract: A rotary engine is provided to use hydrogen as fuel to obtain larger power than a hydrogen fuel electric engine. A rotary engine includes rotary pistons(11,12), and a pair of rotary piston engine housings. The rotary pistons project from a rotary body and have blades(2,3). The blades of the rotary pistons are rotated in the pair of piston engine housings. When the blades are rotated in the housings, the blades are folded to prevent collision of the blades and leak of an explosive pressure in a cylinder. Components of the rotary piston engine are installed in a central stator of the rotary piston. Various components of the piston reciprocating engine are installed in an upper end of the engine.
Patent KR-20060038977-A (KR)
Inventor: KWON SANG IL
IPC: C12G3/00
Filed: 2006-04-11
Abstract: 본 발명은 생벼와 백미를 원료로 하는 순쌀맥주의 제조방법에 관한 것으로, 더욱 자세하게는 생벼와 백미의 분말에 효소제와 호프 및 효모영양원을 첨가하고 액화시킨 후, 기존 맥주의 제조공정과 동일하게 단백질분해, 당화, 자비, 발효 및 숙성 과정을 거쳐 산미가 현저히 낮은 새로운 형태(이하 "저산미형"이라 한다)의 순쌀맥주를 제조하는 방법에 관한 것이다. 
     본 발명에 따른 순쌀맥주는 발아공정이 생략되어 제조공정이 간소화됨과 아울러 수입맥아를 생벼와 백미로 대체함으로써 원가절감효과 및 쌀 소비촉진에 의한 농가소득증대에 크게 기여할 수 있다. 
       
     액화효소제, 당화효소제, 단백질분해효소제, 효모추출물, 호프
Patent KR-20060039425-A (KR)
Inventor: KONG HAE MAN
IPC: G06F1/16
Filed: 2006-04-17
Abstract: 속도저하등을 보호하는부품으로서  컴퓨터 내부 케이스 안의 온도를 감지 일정규정 온도와 오차의 한계에서  
     작동하여 불필요한 전력소모와 소음 팬의 수명연장  먼지 유입등 을 줄여주고 
     기타 유익한 고감각 온도센서 부착한 팬입니다  
     
     먼지 컴퓨터케이스 강제통풍팬 냉각팬 자동온도감지 냉각제어팬
Patent KR-20060112219-A (KR)
Title: Variably operated valve system for compression ignition engine
Inventor: NAKAMURA MAKOTO
IPC: F02D13/02
Filed: 2006-04-25
Abstract: A variably operated valve system for a compression ignition engine is provided to prevent a starting failure by preventing an intake valve closure timing from being separated from a bottom dead center. A variably operated valve system for a compression ignition engine, comprises an adjustment mechanism which is controlled by a control unit so as to separate an intake valve closure timing from a bottom dead center in accordance with engine operating condition; and an engine start stabilizing unit for ensuring engine start in at least any of cases of during failure of control unit, during engine stoppage, and during engine starting. The engine start stabilizing unit includes a mechanical bias unit for biasing the adjustment mechanism so that the adjustment mechanism is directed toward the intake valve closure timing so as to approach the position around the bottom dead center in at least any of cases of during failure of control unit, during engine stoppage, and during engine starting.
Patent KR-20070107287-A (KR)
Title: Liquid crystal display device
Inventor: HONG YOUNG TAE
IPC: G02F1/1335
Filed: 2006-05-02
Abstract: A liquid crystal display device is provided to improve the brightness by realizing full colors by using CCM layers, which have high light efficiency and convert short-wavelength lights into red, green, and blue colors, the three primary colors, instead of color filter layers. A liquid crystal display device has a first substrate(101) and a second substrate(102) oppositely bonded with each other, and a light source(600) arranged under the first substrate. A thin film transistor(TFT) and a pixel electrode(117) are formed at each sub-pixel defined by gate lines and data lines vertically crossing on the first substrate. CCM(Color Change Modulation) layers(132a,132b,132c) are formed on the second substrate, corresponding to each sub-pixel.
Patent KR-20060115646-A (KR)
Title: Baking hardening type cold rolled steel sheet with high yield ratio and process for producing the same
Inventor: YOON JEONG BONG
IPC: C22C38/00
Filed: 2006-05-03
Abstract: A non-aging type cold rolled steel sheet capable of enhancing yield strength and lowering in-plane anisotropy by fine AlN precipitates and a method for manufacturing the same are provided. A non-aging type cold rolled steel sheet with high yield ratio comprises, by weight percent, 0.005% or less of C, 0.08% or less of S, 0.1% or less of Al, exceeding 0.004% to 0.02% or less of N, 0.2% or less of P, 0.0001 to 0.002% of B and 0.002 to 0.04% of Nb with the balance being Fe and other inevitable impurities, wherein the Al, N, Nb and C, by weight percent, satisfy (Al/27)/(N/14)=1 to 10 and (Nb/93)/(C/14)=0.8 to 5.0, and wherein AlN precipitates have an average size of 0.2 mum or less.
Patent KR-20060119776-A (KR)
Title: Equipment and method for measuring silicon concentration in phosphoric acid solution
Inventor: WATATSU HARURU
IPC: G01N31/00
Filed: 2006-05-16
Abstract: Equipment and a method for measuring silicon concentration in a phosphoric acid solution are provided to simplify a silicon concentration measuring process by measuring silicon concentration without a preprocess. Equipment for measuring silicon concentration in a phosphoric acid solution includes at least a reaction tank(1) and a concentration-measuring tank(7). The reaction tank includes a reaction unit for adding hydrofluoric acid to the constant amount of phosphoric acid solution drawn from a semiconductor substrate processing system to form a silicon fluoride compound and evaporate the silicon fluoride compound. The concentration-measuring tank includes a hydrolysis unit for bubbling the silicon fluoride compound evaporated from the reaction tank through deionized water to hydrolyze the silicon fluoride compound and a measurement unit for determining a change rate of silicon concentration in the deionized water subsequent to the bubbling.
Patent KR-20070111677-A (KR)
Title: A watercontrol valve replacement apparatus without suspension of water supply
Inventor: PARK YEONG SIK
IPC: F16K43/00
Filed: 2006-05-18
Abstract: A water control valve replacement apparatus without suspension of water supply is provided to minimize a water leakage while replacing a valve and to enable convenient carry, installation and removal of the valve replacement apparatus. A water control valve replacement apparatus without suspension of water supply includes a housing(10), a water defending unit(20), and a transfer unit(30). The housing is connected and fixed to an outlet of the valve, preventing water leakage. The water defending unit is inserted from the inside of the housing into the outlet of the valve, and expanded and fixed inside a pipe to prevent water leakage. The transfer unit allows the water defending unit to move linearly along the pipe.
Patent KR-20070113417-A (KR)
Title: Connecting wire press-connecting structure for fuse terminal
Inventor: CHOI SUN HAK
IPC: H01R43/16
Filed: 2006-05-23
Abstract: A structure of pressing and connecting of a connection wire in a fuse terminal is provided to achieve exact pressing of a connection barrel part of the fuse terminal used for the connection between the fuse terminal and a wire. A structure of pressing and connecting of a connection wire includes a connection barrel part(26), serration(28), and a spacer(30). The connection barrel part(26) is integrated with the first side of a body(22), and has a front end arched toward the surface of the body(22). The serration(28) is provided at the connection barrel part(26) facing a connection line(35) or the body(22). The spacer(30) is provided at the connection barrel part(26) or the body(22) to adjust the press degree between the connection barrel part(26) and the body(22).
Patent KR-20070113654-A (KR)
Title: The vibration preventer for the stringed instrument
Inventor: LEE IL YOUNG
IPC: G10D1/08
Filed: 2006-05-25
Abstract: A vibration preventing apparatus for a stringed instrument is provided to obtain clear sound by blocking vibration disturbing an original sound. A vibration preventing apparatus for a stringed instrument comprises a pad and a supporter. The stringed instrument includes a body(20) formed with a resonator, a neck(40) extending from the body, a head(60) placed at a front end of the neck and a string(10) having a first end fixed to the body and a second end fixed to the head. The pad is provided between the head and the front end of the neck. The pad prevents a dull sound from occurring due to an unnecessary vibration which is generated since vibration between the body and the neck is transferred into the head. The supporter receives the pad.
Patent KR-20070115481-A (KR)
Title: Portable electronic device
Inventor: LIM DONG HYUN
IPC: G06F15/02
Filed: 2006-06-02
Abstract: A portable information device is provided to enable a user to input a cursor operation signal without covering a display part, and automatically switch direction of the cursor or pointer operation signal by making a signal switch detect a rotation position of the touch pad. A portable information device includes a body(110), the display part(120) displaying an image in the body, and the touch pad part(180) receiving the cursor or pointer operation signal, and placed to a position separated from the display part to prevent viewing the display part. The touch pad part is rotated to the body to select a first position exposed to a rear direction of the display part and a second position exposed to a front direction of the display part. The signal switch switches the direction of the cursor or pointer operation signal according to selection of the first and second positions. A supporter supports the portable information device in a stand state after the touch pad is rotated to the second position. A button part(160,170) inputs click or scrolling information, and is installed to the position separated from the display and touch pad part.
Patent KR-20070117187-A (KR)
Title: Apparatus and nethod for inspection of display panel
Inventor: PARK SOON JAE
IPC: G02F1/13
Filed: 2006-06-07
Abstract: An apparatus and a method for testing a display panel are provided to prevent looseness of the LCD(Liquid Crystal Display) panel by pressing facing areas of the LCD panel connected through test pins by using a looseness preventing part and prevent damage of a polarizing plate, attached on the LCD panel, through surface contact between the looseness preventing part and the LCD panel. A display panel testing apparatus comprises a stage part(100), a test plate(200) and a looseness preventing part(300). In the stage part, a display panel(10) including a test pad is mounted. The test plate supplies a test signal by being connected to the test pad of the display panel. The looseness preventing part performs surface contact with the display panel facing the test pad. The apparatus further comprises a frame part for supporting the test plate and the looseness preventing part.
Patent KR-20060073556-A (KR)
Inventor: JANG CHANG HWAN
IPC: H04L29/10
Filed: 2006-06-08
Abstract: 본 발명은, IEEE 1394와 같은 디지털 통신 인터페이스를 이용하여 연결 접속된 디지털 영상디스플레이 장치와 디브이디(DVD: Digital Versatile Disc)재생기에 있어서, 상기 디지털 영상 디스플레이 장치에서 디브이디 재생기의 동작을 제어할 수 있도록 하는 커맨드 세트(Command Set)를 정의하고, 정의된 커맨드 세트에 따라, 상기 IEEE 1394 인터페이스를 통해 디지털 영상플레이 장치로부터 전송되는 커맨드에 상응하여, 디브이디 재생기의 동작을 제어하는 디지털 통신 인터페이스를 이용한 디브이디 재생기의 제어방법에 관한 것으로, 통신채널을 통해 사용자의 인터페이스 커맨드를 수신하는 1단계; 상기 수신된 커맨드에서, 다수의 프로그램을 저장하고 있는 디브이디의 재생과 관련된 동작제어 명령을 해석하는 2단계; 및 상기 해석된 명령에 따른 기 정의된 동작을 수행하는 3단계를 포함하여 이루어져, 디브이디(DVD)의 특성에 따른 기능 및 동작을 IEEE 1394와 같은 통신 채널을 통해 제어할 수 있도록 함으로써, 향후 연결 사용이 확실시 예상되는 디지털 영상디스플레이 장치에서 디브이디(DVD) 재생기의 동작을 용이하게 제어할 수 있게 하는 매우 유용한 발명인 것이다. 
       
     디지털 통신 인터페이스, 커맨드 세트, 연산자, 피연산자, 디브이디
Patent KR-20060128697-A (KR)
Title: Method and apparatus for filling liquids into foil bags with a spout
Inventor: WILD HANS PETER
IPC: B65B3/16
Filed: 2006-06-08
Abstract: A method and an apparatus for filling liquids into foil bags with a spout are provided to prevent the exterior of an injection port from being wetted with the liquids. A method of filling liquids into foil bags with a spout includes the steps of mounting an injection port(3) on a filling hole, pouring foil bags(2) through the injection port, filling the foil bags with liquids through the injection port, sucking out the liquids through the injection hole(4), and injecting a sterilizing gas into the foil bags though the injection port. Discharging, sucking, and injecting the sterilizing gas are performed through a common gas passages(32,33) to the filling hole.
Patent KR-20070119420-A (KR)
Title: Cross-bar fixing device of roof carrier for vehicle
Inventor: SON YOUNG KI
IPC: B60R9/08
Filed: 2006-06-15
Abstract: A cross bar fixing device of a roof carrier for vehicle is provided to preclude complete release of a cross bar from side rails by detaching first and second operating levers from first and second side rails. A cross bar fixing device of a roof carrier for vehicle comprises first housings(40) and second housings(50), a first rod(70) and a second rod(80), and first operating levers and second operating levers. The first and second housings are combined along a first side rail(20) and a second side rail(30). The first and second rods are connected to the first and second housings and two ends of a cross bar, and guide one or two ends of the cross bar to be separated from the first and second housings. The first and second operating levers, which are installed along two ends of the cross bar and detached from the first and second side rails, release other end of the cross bar from the other side rail if one end of the cross bar is rotated to the upper part to be released from one side rail.
Patent KR-20060081684-A (KR)
Inventor: KIM HYUN HOI
IPC: H01H11/00
Filed: 2006-06-23
Abstract: 본 발명은 휴대폰, PDA, MP3 등과 같은 통신기기의 기능을 전환시키는 부품키에 관한 것으로, 보다 상세하게는 외관이 깨끗하고 표면 벗겨짐이 발생하지 않아 합성수지류로 된 도금키의 대처용으로 사용되어지는 금속재 부품키의 구조를 개선하여 배면으로부터 빛의 새어나올 수 있도록 함에 따라 야간이나 어두운 곳에서 선택하고자하는 부품키의 선택 사용이 용이하게 함과 동시에 금속재 부품키의 제조공정의 단순화로 대량 생산 및 생산원가 절감을 도모할 뿐만 아니라, 인쇄필름을 통한 다양한 색상 구현이 가능하면서 메탈소재의 느낌을 그대로 유지할 수 있어 부품키를 통한 상품가치를 높일 수 있는 발명에 관한 것이다. 
     	본 발명은 스테인레스스틸판, 동합금판, 알루미늄판중 어느 하나의 금속판(10)의 표면을 메탈소재의 느낌을 갖도록 표면 처리한 후, 문자, 기호(20a) 등을 갖는 부품키 패턴(20)을 부식(엣칭)가공하거나 프레스가공하고, 부품키 패턴(20)이 가공된 금속판(10)은  금형을 이용하여 높이와 공간(40a)을 갖는 부품키부재(40)로 형상화 시킨 다음, 색상 프린트 효과를 얻을 수 있도록 인쇄필름(30)을 대어준 후 형상화 된 부품키부재(40)의 공간(40a)에 실리콘이나 우레탄과 같은 고무계열 또는 합성수지류 중 어느 하나를 충진시켜서 메탈돔 스위치를 눌러주는 돌기(50a)를 갖는 충진부재(50)를 갖도록 제조하는 방법과, 메탈소재의 느낌을 갖도록 표면 처리되고, 배면으로부터의 빛이 새어 나오는 문자, 기호(20a) 등이 포함된 금속판(10)의 부품키 패턴(20)을 절형하여서 된 부품키부재(40)와, 상기 부품키부재(40)의 공 간(40a)에 색상 프린트 효과를 낼 수 있는 인쇄필름(30)이 열융착 형성되어 있고, 인쇄필름(30)이 열융착되어진 부품키부재(40)의 공간(40a)에 메탈돔 스위치를 눌러주는 돌기(50a)를 갖도록 충진부재(50)가 실리콘이나 우레탄과 같은 고무계열 또는 합성수지계열 중 어느 하나가 충진되어 형성된 배면라이팅이 가능한 휴대용 통신기기의 부품키에 의하여 달성될 수 있는 것이다. 
       
     	금속판, 부품키 패턴, 문자.기호, 부품키부재, 공간, 충진부재, 인쇄필름
Patent KR-20080000750-A (KR)
Title: Method for fabricating array substrate for liquid crystal display device with driving circuit
Inventor: YANG JOON YOUNG
IPC: G02F1/136
Filed: 2006-06-28
Abstract: A method for manufacturing an array substrate for a driving circuit-integrated LCD is provided to skip a doping process for forming a storage electrode to reduce the number of manufacturing processes. First to fourth silicon patterns are formed on a substrate, wherein each of the first to third silicon patterns has a single-layer structure of an impurity-undoped amorphous silicon layer, and the fourth silicon pattern has a double-layer structure of an impurity-undoped amorphous silicon layer and an impurity-doped amorphous silicon layer. The first to third silicon patterns are crystallized to form a first semiconductor layer(112), a second semiconductor layer, and a third semiconductor layer, in which impurities are not doped respectively, while the fourth silicon pattern is crystallized to form a first storage electrode(114), in which impurities are doped. A gate insulating layer is formed on the first to third semiconductor layers and the first storage electrode. First and third gate electrodes corresponding to the first to third semiconductor layers, and a second storage electrode corresponding to the first storage electrode, are formed on the gate insulating layer. Subsequent processes are performed on the resultant substrate, thereby forming active layers, ohmic contact layers, LDD(Low Doped Drain) regions, source and drain electrodes, and pixel electrodes, sequentially.
Patent KR-20080001372-A (KR)
Title: Method of manufacturing a flash memory device
Inventor: JEON YOO NAM
IPC: H01L27/115
Filed: 2006-06-29
Abstract: A method for manufacturing a flash memory device is provided to reduce capacitance between floating gates by forming an isolation layer with a nipple structure having an inverse trapezoidal shape. A hard mask pattern is formed on a semiconductor substrate(100). A trench(102) is formed by performing an etch process using the hard mask pattern. An isolation layer(103) is formed by depositing an insulating layer within the trench. The hard mask pattern is removed and a protruded part of the isolation layer is partially etched to form an inverse trapezoidal shape. A tunnel oxide layer(104) and a conductive layer(105) for floating gate are formed on the exposed semiconductor substrate. A seam is generated from the inside of the conductive layer for floating gate. A thermal process is performed to form the seam as a void. Further, the hard mask pattern is formed by nitride film.