baber/WOPTO huggingface dataset:
Patent KR-19990036440-A (KR)
Title: 알러젠-ｘｃｄ３２융합 단백질
IPC: A61K38/00
Filed: 1996-08-16
Abstract: 본 발명은 하나 이상의 항원 및 사람 Fcγ 수용체 II (FcγRII, CD32)와 상호작용하는 하나 이상의 부분을 포함하는 융합 단백질에 관한 것이다.
Patent KR-20000010571-A (KR)
Title: Glial cell line-derived neurotrophic factor receptor & its nucleic acid and amino acid sequences
Inventor: FOX GARY M
IPC: C12N15/09
Filed: 1997-04-15
Abstract: PURPOSE: A receptor for Glial cell line-Derived Neurotrophic Factor(GDNFR) and nucleic acid and amino acid sequences for GDNFR protein products are described. Also provided is treating method for GDNF-response syndrome. CONSTITUTION: The GDNFR protein products are produced by recombination of genetic engineering. The process comprises the steps of: Culturing of host cell which comprises GDNFR; Preserving the host cell at proper condition; Separating GDNFR protein products selectively from the host cell. In case of GDNF-related syndrome, a treating method increases sensitivity to GDNF or intercepts GDNF- activity.
Patent KR-20000010891-A (KR)
Title: Process for preparing phthalides
Inventor: PUETTER HERMANN HANNEBAUM HEIN
IPC: C25B3/25
Filed: 1997-04-28
Abstract: PURPOSE: A process for preparing phthalides is provided which is carried out without corrosion of plus electrode and harm to minus electrode, yielding pure phthalides. CONSTITUTION: The process is disclosed for preparing phthalides by cathodic reduction of phthalic acid or phthalic acid derivatives, in which the carboxylic acid units may be substituted by units which can be derived by a condensation reaction from carboxylic acid units and in which one or several hydrogen atoms of the O-phenylene unit of the phthalic acid may be substituted by inert radicals. This process is characterized in that the reduction is carried out in an organic solvent which contains less than 50 wt % water and in a non-divided electrolytic cell.
Patent KR-20000015850-A (KR)
Title: Marking method of rapidly disintegrating dosage forms
Inventor: POSAGE GARY W
IPC: A61K47/36
Filed: 1997-06-10
Abstract: PURPOSE: A method for marking the surface of a rapidly disintegrating dosage form is provided to use a non-contact marking technique such as a laser imprinting and an ink-jet printing. CONSTITUTION: The present invention relates to a method of marking the surface of solid rapidly disintegrating dosage forms using a non-contact marking technique such as laser imprinting and ink-jet printing.
Patent KR-20000016107-A (KR)
Title: Amorphous precipitated silica
Inventor: BOYER JAMES L
IPC: H01M50/443
Filed: 1997-04-24
Abstract: PURPOSE: An amorphous deposited silica is provided to have 140 ¯ 185 m2/g of CTAB surface area, 210 ¯ 310 cm¬3/100g of DBP oil absorbing rate, and 10 ¯ 18 nm of average ultimate particle size. CONSTITUTION: Amorphous precipitated silica which may be used to form battery separators of very low specific resistance is characterized by (a) a CTAB surface area in the range of from 140 to 185 m2/g; (b) a DBP oil absorption in the range of from 210 to 310 cm¬3/100 g; (c) a mean ultimate particle size in the range of from 10 to 18 nm; (d) a total intruded volume in the range of from 2.6 to 4 cm¬3/g; and (e) an intruded volume in the range of from 0.9 to 2 cm¬3/g for pores having diameters in the range of from 20 to 100 nm.
Patent KR-20000016240-A (KR)
Title: USE OF INHIBITORS OF CELLULAR Na+/H+ EXCHANGER (NHE) FOR PREPARING MEDICAMENT FOR NORMALIZING SERUM LIPIDS
Inventor: LANG HANS JOCHEN
IPC: A61K31/255
Filed: 1997-05-20
Abstract: PURPOSE: The use of inhibitors of the cellular Na+/H+ exchanger (NHE) is provided which is used to prepare a medicament for normalizing serum lipids. CONSTITUTION: The active substances(Ia) identified as inhibitors of the cellular Na+/H+ exchanger (NHE) are used to prepare a medicament for normalizing serum lipids. They are used in the preparation of a medicament which reduces lipid levels in the blood and can be administered for treating diseases caused by lipid levels which are too high, and for alleviating the endothelial dysfunctional syndrome and for treating diseases caused thereby. In formula, R(1) or R(2) is R(6)-S(O)n- or R(7)R(8)N-O2S-; R(6) is phenyl substituted by one to three substituents selected from (C1-C6)-alkyl, (C5-C7)-cycloalkyl, cyclophentylmethyl, cyclohexylmethyl, or F, Cl, methyl and methoxy; R(7),R(8) are the same or different H or (C1-C6) alkyl; R(3),R(4),R(5) are H or (C1-C2)-alkyl; R(3),R(4) are (C2-C4)-alkylene; R(4),R(5) are (C4-C7)-alkylene.
Patent KR-20000016816-A (KR)
Title: Method and apparatus for minimizing chroma subcarrier instability caused by a video line scrambling system
Inventor: QUAN RONALD
IPC: H04N7/169
Filed: 1997-06-17
Abstract: PURPOSE: A coring circuit is disclosed which provides means for substantially removing the unstable residual chroma subcarrier from the luminance channel, thereby substantially reducing color subcarrier instabilities. CONSTITUTION: The improved coring technique is disclosed using adaptive chroma coring (62), which is achieved by adjusting the amount of coring applied in accordance with the amplitude of the chrominance signal. Thus, if the program video input (52) has high levels of color saturation, the chroma coring (62) is electronically turned up. Conversely, if the input video program (52) is essentially in black and white (no color content), then the coring circuit essentially is electronically turned off. The coring techniques also are applicable to enhance the luminance-chrominance separation of video comb filters (54) frequently used in video circuits such as, for example, television sets and video recorders.
Patent KR-20000050520-A (KR)
Inventor: HONG CHEON HWA
IPC: F24D17/00
Filed: 1999-01-11
Abstract: PURPOSE: An apparatus for and a method of controlling a split supply of hot water for room heating are provided to prevent overheating of room, achieve a uniform heating for each room, and save a heating energy by dividing a residence into two or more heating zones and supplying hot water only to one of the heating zones while the other remains at an optimum temperature. CONSTITUTION: An apparatus comprises a temperature controller installed in each heating zone, the temperature controller serving to set a room heating temperature and sense a room temperature, an opening/closing unit arranged at a hot water distributor and electrically controlled to supply or shut off the hot water to or from each heating zone, and a controller for receiving from the temperature controller a signal representing whether the room temperature has reached the set room heating temperature and controlling the opening/closing unit to alternately supply hot water to the divided heating zones.
Patent KR-20000055042-A (KR)
Inventor: WOLFGANGALBALAN
IPC: B01D45/00
Filed: 1999-02-03
Abstract: PURPOSE: An apparatus and a method for direct reduction of ferric oxide are provided to achieve an efficient reduction performance while allowing the metalized ferric powder to be isolated and discharged with ease. CONSTITUTION: An apparatus comprises a reactor(10) having a gas inlet, a gas outlet, a ferric oxide inlet(12), a ferric oxide outlet(14) and which forms a reducing zone, and an isolator member(22) arranged within the reducing zone so as to isolate metalized ferric powder from a high temperature gas fed into the reactor(10). The isolator member(22) is constituted by at least one elongated tubular housing having a side wall for forming a passage of the metalized ferric powder and the high temperature gas. The side wall of the housing includes a cooling member containing a refrigerant for cooling down the side wall so as to protect the side wall from being adhered with the metalized ferric powder.
Patent KR-20000055705-A (KR)
Inventor: KIM JI GON
IPC: H02H7/085
Filed: 1999-02-09
Abstract: PURPOSE: A circuit is provided to prevent the damages to an electric driving motor due to thermal aging caused by the heating of the motor by turning on a bimetal mounted in the motor when a motor temperature is risen. CONSTITUTION: A bimetal is connected to a motor(M) and turned off when its temperature is over a certain temperature. A relay(RY1) has a contact(C1) and a contact(C2). The contact(C1) is turned off and the contact(C2) is turned on, when the bimetal B1 is turned off. A buzzer is connected to a limit switch(L2) and produces an alarm sound when the contact(C2) of the relay(RY1) is turned on. Another bimetal may be connected to the motor(M) and the operation temperature of the bimetal is lower than that of the bimetal.
Patent KR-19990045909-A (KR)
Title: 산업기계용브레이크라이닝및그제조방법
IPC: F16D69/02
Filed: 1999-02-04
Abstract: 본 발명은 산업기계용 브레이크 라이닝에 관한 것으로서, 석면을 사용하지 않고 각종 산업용 쓰레기를 이용하여 브레이크 라이닝을 제조하는 방법을 제공하기 위한 것이다. 한편 본 발명의 제조방법은 케브라 25%, 면 20%, 벌커 15%, 탄화 섬유 10% 및 아크릴 섬유 30%를 혼합하여 방직용 실로 제작한 다음, 이를 0.3m/m의 비철사와 연사하여 소정 두께로 방직물을 만든 후, 수지와 메탄올 및 산화철을 6:4:1의 비율로 희석한 다음, 여기에 상기 방직물을 함침 및 건조한 후, 이를 압축롤러로 압축한 다음, 열처리실에서 24시간 동안 0∼150℃의 범위 내에서 열처리하여 브레이크 라이닝을 제조하는 것이다.
Patent KR-19990046374-A (KR)
Title: 벼모의이식장치
Filed: 1999-03-03
Abstract: 1. [청구범위에 기재된 발명이 속하는 기술분야] 
     벼모등의 이식장치에 있어서 종래 공지된 벼모 등의 이식장치는 편심기어로장치되어 기어의 물림선(핏치써클)이 정밀 할수없는구조로 유격(백래시)가 큼으로 백래시로 인한 문제를 해소하기 위한 감소장치가 특허공고 96-2940에 개시되어 있는 바와 같은 구조가 있다. 
     이 구조의 문제를 본 발명이 추구하는 폐곡선캠의 3중 구조로 백래시문제를 해소하고 고속이식이 원활히 수행될 수 있도록 이식 장치를 제공함에 있다. 
     2. [발명이 해결하려고하는 기술적과제] 
     상기공보에 계시된 종래의 구조에서는 편심 기어로 장치되 기어의 물림선(핏치써클)이 정밀할 수 없는 구조로 백래시가 큼으로 별도 백래시로 인한 문제를 해결하는 방안으로 캠을 한 방향으로 스프링의 장력으로 밀어 붙게 하는 구조로 근본 문제를 축소하고 있다. 
     본 발명은 이러한 것을 근본적인 해결과 구조의 간소화를 꾀하는 것을 목적으로 하고있다. 
     3. [발명이 해결방법의 요지] 
     본 발명의 특징은 이상과 같은 모 이앙 장치에서 다음과 같이 구성 하는 점에 있다. 
     즉, 이앙 트랜스 미션케이스로부터 양옆으로 돌출하여 회전하는 구동 축에 이식 회전케이스를 고정시키고 그 이식 회전케이스는 양단에 2개의 모 밀어내는 식입 장치가 부착되어 자전하는 회전자가 있고 그 회전자는 3개의 발을같고있으며 그 발은 구동기어 케이스에 고정되어있는 3중 폐곡선캠 판에 연결 된 구조를 같고 있다. 
     4. [발명의 중용한 용도] 
     이상과 같은 이식 회전케이스에 모심는 창치의 구조는 생산비 면에서 유리한 구성을 얻을 수 있다. 또 캠과 스프링에 의한 백래시 축소조작 장치가 필요 없으며 동작이 부드러워 속도를 높여 성능을 향상시킬 수 있다.
Patent KR-20000059453-A (KR)
Inventor: KIM JAE HUN
IPC: B23K9/127
Filed: 1999-03-04
Abstract: PURPOSE: A sensing system of an automatic welder is provided to control a process of a crawler by quickly and exactly recognizing a relative posture and a distance between the crawler and each structure. CONSTITUTION: A CCD camera(50) and a laser scan sensor(60) generate a signal sensing a structure(4) around a crawler(20). A central processing unit(70) exactly recognizes the position of the crawler by processing the sensing signal. The central processing unit precisely controls the drive amount of all kinds of drive devices such as a servo motor installed in the crawler. Then, the central processing unit exactly moves the crawler to a target point.
Patent KR-20000060401-A (KR)
Inventor: KIM JEONG JUN
IPC: H01J11/42
Filed: 1999-03-15
Abstract: PURPOSE: A green fluorescent substance of a plasma display panel is provided to be capable of forming a plasma display panel of a uniform screen quality by preventing a degradation of a fluorescent substance. CONSTITUTION: A plasma display panel comprises bulkheads(200) which are formed on a predetermined substrate(100) so as to be spaced apart. A fluorescent substance is disposed between the bulkheads(200) at which a green fluorescent substance is to be formed. The fluorescent substance is obtained by mixing a green fluorescent substance(300) and a positive charged material(400).
Patent KR-20000061912-A (KR)
Inventor: PARK SEUNG YOUL
IPC: A63F13/95
Filed: 1999-03-31
Abstract: PURPOSE: A portable game machine for study is provided to improve study efficiency by making a student have an interest in study anywhere and anytime. CONSTITUTION: An input key is turned on after designating a wanted section by turning on up, down, right and left keys of a keypad(1). A content is displayed on a liquid crystal display unit(3) by reading data corresponding to the summary of the selected section so that comprehension on the section is improved. After the summary of the section is displayed for a certain time, problems are displayed on the liquid crystal display unit in order from the lowest level to the highest level. An answer is selected with the up, down, right, left and input keys of the key pad in a state of displaying a first question on the liquid crystal display unit before a certain time passes.
Patent KR-19990082818-A (KR)
Title: 정전화상현상용토너및화상형성방법
IPC: G03G9/087
Filed: 1999-04-01
Abstract: 전자 사진법 등에 사용하기에 적합한 토너는 각각 결합제 수지, 착색제 및 왁스 성분을 함유하는 토너 입자로 이루어진다.  상기 토너는 2 내지 6 ㎛의 수평균 입도 및 원 상당 직경의 수 기준 분포를 기준으로 2.6 미만의 입도 표준 편차, 및 0.970 내지 0.995의 평균 원형도 및 원형도 빈도 분포를 기준으로 0.030 미만의 원형도 표준 편차를 가지고, 500 ppm 이하의 잔류 단량체 함량을 갖는다.  상기 토너 입자는 투과 전자 현미경으로 관찰하였을 때 입자 단면이 결합제 수지의 매트릭스 및 그 매트릭스에 왁스 입자가 분리된 형태로 분산되어 있는 것을 나타내도록 하는 미세 직물 구조를 갖는다.
Patent KR-19990082940-A (KR)
Title: 절연 칼라를 가진 트렌치 커패시터
IPC: H01L27/108
Filed: 1999-04-06
Abstract: 본 발명은 트렌치 커패시터 제조 방법에 관한 것이고, 칼라 및 트렌치 기저부 측벽을 라이닝하는 노드 유전체를 제공하여 개선된 트렌치 커패시터를 제조한다.  더욱이, 트렌치 커패시터는 실질적으로 상부의 직경과 같거나 큰 하부를 포함한다.
Patent KR-20000065507-A (KR)
Inventor: SHIN SANG HUN
IPC: H04B7/26
Filed: 1999-04-06
Abstract: PURPOSE: A method for connecting an interactive service directly and the mobile communication terminal system thereby are to provide a rapid and convenient service by storing the address of a specific service screen in a storing device contained in a user's terminal and repaging the stored address directly. CONSTITUTION: A user pushes a function button to approach an interactive service start menu(2a). It is checked whether a function key to store a service address is pushed(2b). If the service address storing key is pushed, a step to input and store the service address is carried out(2j). If the service address storing key is not pushed, it is checked whether a function key to be connected to the service directly is pushed(2c). If the function key to be connected to the service directly is pushed, a step to select a desired service address among service addresses stored in the storing device contained in the user's terminal is executed(2d). Then, a step to access a service network corresponding to the selected service address is carried out(2e).
Patent KR-19990083165-A (KR)
Title: 엔진 오일 및 냉각제에 대한 내성을 갖는 열경화성 실리콘 고무 조성물
IPC: C08K3/24
Filed: 1999-04-13
Abstract: 연장수명 냉각제 및 합성 모터오일을 포함하는, 엔진오일과 냉각제에 대한 개선된 내성을 갖는 열 경화성 실리콘 고무 조성물이 개시되고 청구된다.  상기 조성물은 
     (A) 각 분자중 적어도 2개의 규소-결합된 알케닐 기를 함유하는 오르가노실록산 중합체 및 1 내지 65 중량%의 보강 실리카 충전제를 포함하는 100 중량부의 오르가노실록산 중합체 베이스, 
     (B) 가열되었을때 조성물을 경화시키기에 충분한 양의 경화 성분, 및 
     (C) 알칼리 금속 시트레이트, 알칼리 금속 옥살레이트, 일염기 알칼리 금속 인산염, 알칼리 금속 프탈레이트, 알칼리 금속 타르트레이트 및 알칼리 금속 테트라보레이트; 
     금속이 나트륨, 칼륨, 칼슘 및 마그네슘으로 구성되는 군으로 부터 선택되는 이염기 금속 인산염; 
     금속이 나트륨, 칼륨, 칼슘 및 마그네슘으로 구성되는 군으로 부터 선택되는 금속 아세테이트; 
     금속이 나트륨, 칼륨, 칼슘, 마그네슘, 알루미늄 및 아연으로 구성되는 군으로 부터 선택되는 금속 설페이트; 및 
     금속이 나트륨, 칼륨, 칼슘, 마그네슘, 알루미늄 및 아연으로 구성되는 군으로 부터 선택되는 금속 카보네이트 
     로 구성되는 군에서 선택된 적어도 하나의 금속염 첨가제의 유효량 
     을 포함한다.
Patent KR-20000066737-A (KR)
Inventor: MUN YONG GEUN
IPC: E04H6/42
Filed: 1999-04-20
Abstract: PURPOSE: A management method of data is provided to convert a virtual movement data to a real movement data if the real movement data is different from the data before movement. CONSTITUTION: Elevation of a lift and horizontal movement of a transfer are performed by the decision of existence of a vehicle corresponding to an entry/exit command(S1-S3). If photosensors outputs mis-operation, data is not transferred(S5-S5). When a rear system operates, an existing data is forcibly moved and a virtual movement data is created(S6-S7). If the virtual movement data is the same as the real movement data, the real movement data is used. Otherwise, the virtual data is used(S8-S10). According to the comparison of the data for decision of the existence of the transfer corresponding to an entry/exit command on a main lift, the main lift(ML) is lifted up or the transfer is moved horizontally(S11-S14).
Patent KR-20000067549-A (KR)
Inventor: WOO GYEONG CHEOL
IPC: D06F33/02
Filed: 1999-04-29
Abstract: PURPOSE: A method is provided to reduce noise owing to vibration and the amount of consumed power by making an acceleration slope low until vibration noise is stabilized at the early stage of a washing rinsing operation. CONSTITUTION: A method of controlling motor velocity at washing rinsing operation comprises increasing motor rotation velocity according to a first increase rate up to a vibration noise stabilization region at the early stage of a washing rinsing operation. If the increased motor rotation velocity is over predetermined velocity, the motor is accelerated according to a second increase rate. Whether the motor rotation velocity increased in the step reaches target velocity(10rpm), is judged. If so, the motor velocity is controlled so that actual motor rotation velocity reaches the target velocity. If not, the motor continues to be accelerated.
Patent KR-20000074494-A (KR)
Inventor: KIM YANG PYEONG
IPC: B26D5/00
Filed: 1999-05-21
Abstract: PURPOSE: An apparatus for controlling a velocity of an automatic cutter for a laminator is provided to cut continuously supplied laminator films while changing the operation velocity of the automatic cutter according to the amount of the supplied laminator films by changing the velocity of a step motor. CONSTITUTION: An apparatus for controlling a velocity of an automatic cutter for a laminator includes upper and lower rollers(R0-U,R0-L) of which velocities are automatically controlled according to an amount of remaining films to be introduced, wherein the velocities of the upper and lower rollers are changed by variable frequencies applied to a step motor(SM), and four signals of which variable frequencies and phases are different from each other are generated by a microprocessor integrated circuit to be applied to the step motor.
Patent KR-20000075020-A (KR)
Inventor: HWANGBO KUK JEONG
IPC: A43B13/18
Filed: 1999-05-24
Abstract: PURPOSE: Sponge molded midsole is provided which is naturally decomposed after a fixed time passes away so that it is greatly helpful in improving environment. CONSTITUTION: The sponge molded midsole is consisted of a part which is significant in property, color, adhesion power or so on and the other part which is less significant than the first part in shoe functions like property, color, adhesion power or so on. In the second part compound, a natural organic packing agent, that is naturally decomposed, is mixed as the function of compound, the second compound is extruded to be surrounded by the first compound and the extruded compound is crosslinked, foamed and molded in a hydraulic foam press to produce the sponge molded midsole.
Patent KR-20000075322-A (KR)
Inventor: PARK KYUNG HAN
IPC: A45D29/02
Filed: 1999-05-31
Abstract: PURPOSE: A pocket tool including a nail clipper that is folded up into a cover of the pocket tool by a hinge is provided for convenient use. CONSTITUTION: The pocket tool has a nail clipper fixed to one side of the cover to be folded up by a hinge and opened and shut by an elastic plate and elastic retention capacity of a fixture of the clipper. The cover body(1) includes a partition(2) having an enough depth to hold the nail clipper, a hole(4) corresponding to a round slot(201) of the tool plate(200) and a little projection(3) on the other part. The fixture comprises a blade part at the front end, both sides of perpendicularly bent supports having an uneven part met with uneven part of a fixing plate, and an upward bent elastic plate fixed to the fixing plate. The moving part of nail clipper has a front blade, a sunken part with stepped edge and an outer wall around the sunken part.
Patent KR-20010001933-A (KR)
Inventor: KIM MUN HWAN
IPC: H04N5/645
Filed: 1999-06-09
Abstract: PURPOSE: A locking device of socket for connection CRT of video displayer and video board is provided to simplify the assemble process of the video displayer and simplify the dissemble and re-assemble process between the CRT and the video board for AS. CONSTITUTION: A locking device of socket for connection CRT of video displayer and video board comprises a locker and an unlocker. The locker is mounted within a socket and locks one pin(300a) of plural pins of an electron gun(3) coupled to the socket(4) to maintain the locking state between the socket(4) and the electron gun(3). The unlocker is mounted on one side of the socket(4) to unlock the locking state of the pin(300a) locked by the locker.
Patent KR-20000006061-A (KR)
Inventor: DIDRICK LAURENCE PETER
IPC: D06F37/26
Filed: 1999-06-10
Abstract: PURPOSE: A dryer is provided to promote the condensing efficiency before air is heated and returned to a drum of a reciprocation passage. CONSTITUTION: A dryer comprises: a tub(4) having a rotary drum(2) to collect the washing; a repeated circulation passage(5) having a condensing area between the rears of the tub and the drum, having a back face facing to the rear of the drum formed on a contour line, and to circulate the dry air through the drum in a drying mode.
Patent KR-20010009391-A (KR)
Inventor: HAN SANG BAE
IPC: F24C7/04
Filed: 1999-07-09
Abstract: PURPOSE: A far infrared radiation heating apparatus is provided to achieve an improved heating efficiency by intensively radiating far infrared ray onto the target object. CONSTITUTION: An apparatus comprises a motion sensor(10) for detecting motion of an object; a camera(12) for converting the image within the effective area into an electric signal; a far infrared radiation heater support device having a far infrared radiation heater(14) for radiating far infrared radiation to the object, and a fan motor(26) and a tilt motor(28) so as to rotate at the first axis and at the same time at the second axis which is perpendicular to the first axis; a temperature controller(22) for controlling the temperature of the far infrared radiation heater by adjusting power supply to the heater; a motor controller(30) for controlling driving of the fan motor and the tilt motor by calculating motion vector of the object, calculating angle of rotation of the heater, and generating a motor driving pulse signal corresponding to the required movement distance of the heater; and a central processing unit(32) for initializing the apparatus and which is connected to the motor controller and the temperature controller so as to control the operation sequence of function blocks.
Patent KR-19990073439-A (KR)
Title: 나사못
Filed: 1999-07-13
Abstract: 본 발명은 피고정물에 나사머리를 손쉽게 매입할 수 있도록 된 새로운 개념의 나사못에 관한 것이다. 
     본 발명에 따르면, 둘레면에 나사가 형성된 몸체(2)와, 이 몸체(2)의 단부에 형성된 나사머리(4)로 구성되어, 회전에 따라 피고정물(6)에 결합되는 나사못에 있어서, 상기 나사머리(4)의 저면에는 나사의 회전에 따라 피고정물(6)의 표면을 절삭할 수 있도록 된 절삭날(10)이 형성되어, 나사를 결합할 때 상기 절삭날(10)이 회전되어 피고정물(6)의 표면에 나사머리(4)가 매입되는 오목부(8)를 형성할 수 있도록 된 것을 특징으로 하는 나사못이 제공된다.
Patent KR-20010017392-A (KR)
Inventor: CHO WANG GEUN
IPC: H01L21/027
Filed: 1999-08-11
Abstract: PURPOSE: A method for manufacturing a metal pattern of a semiconductor device is provided to prevent metal patterns from being electrically contacted by polymer, by changing a process condition to generate the polymer having a densified structure in an etching process, and by more densely forming the polymer structure by an oxidation process at a high temperature. CONSTITUTION: After a barrier metal layer(3) and a metal layer(4) are sequentially formed on a semiconductor substrate(1) having an insulating layer(2), a photoresist layer pattern is formed on the metal layer. A main etching process is performed to eliminate the metal layer in an exposed portion. An over-etching process is performed to eliminate the barrier metal layer in an exposed portion. An oxidation process is performed to make dense a polymer structure(16) generated in the etching process. An ashing process is performed to remove the photoresist layer.