baber/WOPTO huggingface dataset:
Patent KR-20000074984-A (KR)
Inventor: PARK YEONG TAEK
IPC: H01L21/76
Filed: 1999-05-27
Abstract: PURPOSE: A method for manufacturing a shallow trench for isolating a semiconductor device is provided to prevent a leakage current, by forming a nitride layer between a thermal oxidation layer in a trench region and an oxidation layer filled in the trench to prevent a corner defect of the trench caused by a misalignment in a wet cleaning or trench formation. CONSTITUTION: After a moat pattern is formed on a silicon wafer(11), a predetermined depth of the exposed silicon wafer is etched to form a trench by using the moat pattern as a mask. The moat pattern is eliminated, and the silicon wafer is thermally oxidized, so that a thermal oxidation layer(13) is grown on an inner wall of the trench and on the silicon wafer. A nitride layer(14) is evaporated on the thermal oxidation layer by a chemical vapor deposition(CVD) process. A thick oxidation layer is evaporated on the nitride layer by CVD to fill the trench. The oxidation layer(15) is planarized by a chemical mechanical polishing(CMP) process, using the nitride layer as a buffer layer. The nitride layer remaining on the silicon wafer is eliminated.
Patent KR-20010001811-A (KR)
Inventor: HA DONG SU
IPC: B29C47/00
Filed: 1999-06-08
Abstract: PURPOSE: A method for producing a high strength PVC pipe is provided to be harmless by extruding a mixture mixing plaster powder and additional complex with a present PVC pipe resin. CONSTITUTION: To produce a high strength PVC pipe, plaster powder containing TP-WS-P, CaO and so on is added to a present PVC pipe resin instead of a MBS which is an expensive impact reinforcement. Then, the mixture is extruded to be a new PVC pipe with excellent physical and mechanical property. Therefore, a producing cost is reduced and an environmental problem is removed by using the plaster powder which is industrial waste.
Patent KR-20010001909-A (KR)
Inventor: AHN MIN
IPC: F24F13/08
Filed: 1999-06-09
Abstract: PURPOSE: An apparatus is provided to prevent damage to an outer appearance of the air conditioner by reducing frictional force between the open/shut-off door and the space ensuring door. CONSTITUTION: An apparatus comprises an open/shut-off door(65) which moves vertically in accordance with the operation of an air conditioner and opens/shuts off an air inlet port and an air outlet port(53) arranged at a front panel of a cabinet(51), a space ensuring door(75) which moves toward the front panel during opening operation of the open/shut-off door and ensures the space for locating the open/shut-off door, and a roller(91) installed at a lower portion of the open/shut-off door and which reduces a frictional force produced between the open/shut-off door and the space ensuring door when the open/shut-off door is opened. The open/shut-off door has a lower end which is inclined, so that the open/shut-off door easily proceeds toward the top of the space ensuring door during opening operation. When the air conditioner starts operating, the open/shut-off door is lowered so as to open the air outlet port, and presses the space ensuring door to push it toward the inside of the cabinet. At this time, the roller rotates at the outer surface of the space ensuring door, thereby reducing frictional force between the two doors and preventing scratch.
Patent KR-20010003182-A (KR)
Inventor: CHO IL JU
IPC: G01N23/225
Filed: 1999-06-21
Abstract: PURPOSE: A method for manufacturing a cantilever of an SPM(scanning probe microscope) with a B-diffusion layer on a silicon substrate is provided to manufacture various functions of cantilevers for an SPM with a low-cost material and simple photolithography. CONSTITUTION: To manufacture a cantilever, a specific wafer is formed. A silicon dioxide film(502) is grown on the wafer and then patterned to make a silicon tip. The other portion without the silicon dioxide film is processed by dry etching with freon gas. The silicon dioxide film is grown to be used as a mask for forming a B-diffusion layer and patterned again for selective B diffusion. The B is diffused to form the B-diffusion layer simply on the portion without the silicon dioxide film. The silicon dioxide film is grown to be used as a mask for anisotropic etching for a cantilever. The dioxide film is patterned again for selective etching. On anisotropic etching with a silicon etching solution, the B-diffusion layer and silicon surface(503) function as etching stop layers. Therefore, the cantilever made by the B-diffusion layer is formed.
Patent KR-20010004780-A (KR)
Inventor: YE JIN HAE
IPC: F23D14/62
Filed: 1999-06-29
Abstract: PURPOSE: A mixing pipe of a gas range is provided to easily adjust the amount of first air flew into the mixing pipe by adjusting the distance between a nozzle installed in the front of the mixing pipe and a mixing pipe inlet. CONSTITUTION: A mixing pipe of a gas range includes a main body(20) of the mixing pipe having a screw part(20a) in the front end part, a mixing pipe inlet(22) changeable in length to the main body and having a screw part(22a) combined with the screw part of the main body, and stop protrusions formed in the rear part of the screw part of the main body for preventing more insertion in case of combining the screw of the mixing pipe inlet with the main body, thereby enabling to adjust the position of the mixing pipe inlet.
Patent KR-20010005100-A (KR)
Inventor: LEE JEONG YEOP
IPC: H01L27/08
Filed: 1999-06-30
Abstract: PURPOSE: A method for forming a self-aligned silicide structure on a gate electrode as well as source and drain regions is provided to prevent an irregular formation of the silicide structure caused by staying fluorine. CONSTITUTION: A gate oxide(22) and a polysilicon gate electrode(23) are firstly formed on a silicon substrate(20) having an isolation layer(21). Next, sidewall spacers(24) are formed on edges of the gate electrode(23) by plasma dry etch using fluorine-containing gas, causing the stay of fluorine. Then, source and drain regions(25) are formed in the substrate(20), and the first metal layer having a high melting point, such as a titanium layer, is deposited on the entire resultant structure. Thereafter, the first metal layer is removed by wet etch, and particularly, the staying fluorine is wholly removed as well. Again, the second metal layer of high melting point such as a titanium layer is deposited. After that, the second metal layer is formed into a silicide layer(27A) on silicon-exposed surfaces, but removed on the other surfaces.
Patent KR-20010016811-A (KR)
Inventor: CHA TAE HO
IPC: H01L27/10
Filed: 1999-08-04
Abstract: PURPOSE: A method for manufacturing a capacitor of a semiconductor device is provided to prevent a lifting phenomenon between a TiAlN barrier metal layer and a noble metal layer, by using TiAlN as a barrier metal layer used for preventing diffusion and oxidation. CONSTITUTION: A semiconductor substrate is prepared which has various elements for forming a semiconductor device. A TiAlN barrier metal layer(3) is deposited on the semiconductor substrate. A rapid thermal process is performed in an atmosphere of a small quantity of O2 so that a thin Ti-Al-N-O based oxide layer(4) is forcibly formed on the TiAlN barrier metal layer and an O2 stuffing portion(10) exists in a grain boundary. A noble metal layer is deposited on the TiAlN barrier metal layer having the Ti-Al-N-O based oxide layer and the O2 stuffing portion, and is patterned to form a storage electrode(5). A dielectric layer(6) and a plate electrode(7) are formed on the entire structure including the storage electrode.
Patent KR-20000017090-A (KR)
Inventor: NAGAMANE AKIRA
IPC: H01R13/50
Filed: 1999-08-04
Abstract: PURPOSE: A connector housing is provided to improve a maintenance power of a terminal by dual-fixing the housing by use of a retainer. CONSTITUTION: The housing of a connector comprises: a housing body (10) which has a acceptance room (11), in which a terminal (T) is inserted, and a cave portion (15) passing through the acceptance room (11) so as to be opened at an external wall; a retainer (20) which is inserted so as to be capable of sliding at the cave portion (15) of the housing body (10) and has a connection portion (21) for connecting the acceptance room (11) divided front and rear by the cave portion (15); and a hinge (20) which connects the retainer (20) to the housing body (10) in unity, wherein the retainer (20) is capable of moving into the slide direction when the terminal (T) exists at a normal location of the acceptance room (11) and is secondarily fixed to the terminal (T) by such a movement.
Patent KR-20010016951-A (KR)
Inventor: PARK SEUNG CHEOL
IPC: F04D29/66
Filed: 1999-08-05
Abstract: PURPOSE: A fan with reduced noise is provided to reduce noise by phase-interference between sound signals generated by convex cells respectively formed on a top surface on wings of the fan, and reduce fluid loss by decreasing or removing vortex flow strength behind the wings by preventing the separation phenomenon or moving the separation point in the fluid flowing direction. CONSTITUTION: A fan with reduced noise includes wings(1) formed with at least more than two convex cells(8) formed on a top surface(2), wherein the convex cells are formed in various shapes such as circle, oval, and polygon. As fluid passes by the wings toward the wings, pressure fields are changed on the surface of the wings and such pressure inclinations produce sound signals having different shapes depending on sectional shapes of the convex cells. Due to the phase differences of the signals, the sound signals are offset each other and become a synthetic sound signal having reduced size.
Patent KR-20010017761-A (KR)
Inventor: BAEK SEUNG MYEON
IPC: H02H7/08
Filed: 1999-08-13
Abstract: PURPOSE: A device and a method for controlling the overcurrent of a single phase switched reluctance motor are provided to prevent the overcurrent by driving the single phase switched reluctance motor according to a pulse width table which can accomplish the maximum torque. CONSTITUTION: A sensor(20) detects the rotational speed of a single phase switched reluctance motor(10). A driving section(50) supplies the DC power source according to a predetermined driving pulse, and drives the single phase switched reluctance motor(10). A controlling section(40) calculates the rotational speed of the single phase switched reluctance motor(10) according to the output of the sensor(20). The controlling section(40) controls the driving section(50) so that the driving pulse having the width corresponding to the rotational speed in the stored rotational speed driving pulse width table.
Patent KR-20010018067-A (KR)
Inventor: KANG SEUNG HO
IPC: F16K17/00
Filed: 1999-08-17
Abstract: PURPOSE: A pressure control valve for process chamber is provided to prevent wafers loaded in the process chamber from being contaminated by preventing internal pressure of the processing chamber from being rapidly changed. CONSTITUTION: A pressure control valve(200) comprises a valve body(201) installed in a predetermined portion of an exhaust pipe(100-1,100-2) installed in a processing chamber so as to have a single flow channel; an open/shut-off control plate(202) installed to move into the valve body crossing the single flow channel of the exhaust pipe so as to change the size of the cross sectional area of the exhaust pipe; and a unit for moving the open/shut-off control plate. The unit includes a rack gear(205) mounted at the end of the open/shut-off control plate, a pinion gear(204) engaged with the rack gear, and a driving motor(203) for rotating the pinion gear.
Patent KR-19990078977-A (KR)
Title: 내진 보강 기구
IPC: E04B1/26
Filed: 1999-08-27
Abstract: 본 발명은, 지진, 태풍 등에 의해 강한 진동이 부하되어도 목조 건축물이 붕괴되지 않도록 내진 성능을 더욱 향상시킨 내진 보강 기구를 제공하기 위한 것으로, 상기 내진 보강 기구(1)는, 판재를 절곡(折曲)형성한 것으로, 양단부(2a, 2b)의 중간부에 내측으로 만곡시킨 만곡 돌출부(5a, 5b)를 형성한 L형 모재(2)와, 판재를 절곡 형성한 것으로, 상기 L형 모재(2)의 절곡부에 당접되는 보강 부재(3)와, 탄성 특성, 내수성이 양호한 고무 재료로 이루어지며, 상기 L형 모재(2)의 여러 곳에 결합되는 완충 부재(4)에 의해 구성된다.  보강 부재(3)를 L형 모재(2)에 당접시켰을 때, 보강 부재(3)의 절곡 모서리부(3c)와 L형 모재(2)의 절곡 모서리부(2c) 사이에 간극(10)이 생기도록 되어 있다.
Patent KR-20000022789-A (KR)
Inventor: TAKIGUCHI MASAO
IPC: H01L21/027
Filed: 1999-08-30
Abstract: PURPOSE: A device is provided to prevent an illuminance deterioration as well as occurrence of ambient air fluctuation of an illuminating optical system by supplying gas into a case to control an ambient temperature. CONSTITUTION: A temperature controller(42) has a heater(45) and a cooler(46) and controls an air temperature introduced through a return duct(12) and an external air introduction opening(13). A blower(43) applies a pressure to air temperature-controlled by the temperature controller(42). A temperature control device(47) controls an ambient air of a case(21) by delivering the temperature-controlled air. An air conditioner(19) introduces air in the temperature control room(11) from the return duct(12), introduces air from the external air introduction opening(13), and move the air through the temperature controller(42) and the blower(43), to thereby maintain constant temperature and cleanness.
Patent KR-20010026453-A (KR)
Inventor: KIM GYU JIN
IPC: D04B15/00
Filed: 1999-09-07
Abstract: PURPOSE: Provided is an installing structure of the upper gear on a circular knitting machine which is characterized by preventing from abrasion and breakage of a driving shaft, noise, vibration and knitting inferiority. CONSTITUTION: The installing structure of the upper gear is comprised of: the upper and the lower pinions(30)(40) fixed to the upper and the lower parts of the driving shaft(20); the upper gear(60) fixed to the upper part of a main shaft(50) and fitted in the upper pinion(30); a support(80) of the upper furnace which is fixed to the lower part of the main shaft(50) supporting the upper furnace(70); a gear ring(110) set on a support(100) of the lower furnace supporting the lower furnace(90) and fitted in the lower pinion(40); the upper bed(130) supporting an inner board(120) set on the main shaft(50); and horizontal level and vibrating source controlling bolts(140)(150) which are set on the upper bed(130) controlling horizontal level and vibrating source of the upper furnace(70). The upper gear(60) is separated from the main shaft(50), and is set on the upper bed(130) with a bearing(160). The main shaft(50) and the gear ring(60) are connected by an arm(170). A bracket(172) punched large hole(171) is set on the end of the arm(170). A connecting rod(61) inserted into the large hole(171) is fixed to the upper part of the upper gear(60).
Patent KR-20000023182-A (KR)
Inventor: KIHARA KAZUAKI
IPC: A01N33/04
Filed: 1999-09-15
Abstract: PURPOSE: A preparation of thiocarbamate and thiocyanate is provided to form a water soluble inorganic salt as a by-product and easily isolate a lipophilic compound as a desired product after the reaction, thus preventing environmental pollution. CONSTITUTION: The preparation of a compound represented by formula 1 or its salt comprises reacting a compound represented by formula 1 or its salt with hydrocyanic acid or its salt: wherein R¬1 and R¬2 are each independently a hydrocarbon group, or R¬1 and R¬2 form a five membered or six membered hetero ring containing nitrogen with an adjacent nitrogen atom, and wherein the respective symbols represent the same meaning as defined above.
Patent KR-20010028298-A (KR)
Inventor: SEO DEOK RYEOL
IPC: H04L12/24
Filed: 1999-09-20
Abstract: PURPOSE: An apparatus for automatically identifying a cable connection for data communication is provided to identify easily a miss-connected cable by transmitting an identification number via a cable when the capacity of system and the number of cable to be connected are increased. CONSTITUTION: First, an identification number for a data transmission cable(50) is generated by the first cable identification number generating part(42) which received control signal from the first processor(30). Then, a count value is outputted by the first counting part(44) by counting the cable identification number received from the first cable identification number generating part(42). Subsequently, the count value received from the first counting part(44) is scrambled and modulated by a scrambling part(46) in order to prevent a noise signal. Finally, the identification number which was scrambled and modulated in the scrambling part(46) is amplified in the first data transceiving part(48). The amplified identification number is sent to the first cable and connector(50).
Patent KR-20010037272-A (KR)
Inventor: KIM JIN SUNG
Filed: 1999-10-15
Abstract: PURPOSE: The method for automatically constructing an internet store using a commodity image information database is provided to reduce a cost and activate an electronic commerce by creating image information, forming a database with respect to the information by categories and supplying image information being needed in an internet store in real time. CONSTITUTION: If a print is requested without supplying a film to a publishing company in needing image information, the publishing company connects to a commodity image database and downloads the corresponding information or links to the database. A current flow is perceived by tracking the information lined to image data. A new product outputting information and a statistics service may be performed because the commodity information is stored in the database from the product outputting time. If a maker(301) requests(311) a photographing in a studio(302) at the product outputting time, the studio(302) stores image information in the database(303) by using photographed slide film(312). A broker and a seller needing the commodity request a print publishing request to the publishing company(306,313). If the print publishing is requested, the publishing company(306) requests the commodity information to the commodity image information database(303)(314), and receives the corresponding commodity image information(315) and publishes the information in real time(316).
Patent KR-20010056002-A (KR)
Inventor: CHO JAE WOO
IPC: A61K8/21
Filed: 1999-12-14
Abstract: PURPOSE: A process for producing the titled skin cosmetic material containing roast salt, peppermint oil and loess powder and a composition thereof are provided. Whereby, the composition makes it easy to accelerate the discharge of staling material, promotes blood circulation to recover the skin and helps the care of the skin. CONSTITUTION: This skin cosmetic material is prepared by the process consisting of: preparing roast salt by heating natural salt and removing a harmful component such as chlorine or the like; pulverizing the roast salt to powder; and mixing the powdered roast salt with peppermint oil and loess powder. The material comprises 98 to 99% by weight of roast salt, 0.5% by weight of peppermint oil and 0.5% by weight of loess powder.
Patent KR-20010083260-A (KR)
Inventor: JARNG SOON SUCK
IPC: G06F9/44
Filed: 1999-12-15
Abstract: PURPOSE: A method for embodying an acoustic sensor transducer simulator(ATS) is provided to use a FEM(finite element method), a BEM(boundary element method), and a FE-BEM selectively and to remove a necessity of forming a sound field limited element by using the BEM in interpreting a three dimensions sound field and enhance a generation of three dimensions free shape element. CONSTITUTION: A principal material of an acoustic sensor is selected, an element is selected, an application algorithm as a FEM, a BEM, and a FE-BEM is selected, a necessary calculating amount is estimated, forms of a piezoelectric element, magnetostrictive, fluid, and an elastic body are decided(S100). Thus, a form of element is decided by defining a coordinate list of nodes to be needed and allocating a node to the corresponding element, an element coordinate error check, and a mesh as a mesh creation process check is created(S200). A pre-processing as a decision of many related processing commands to be used, an executed data input of load and boundary condition data, and the final checking of created mesh and data is executed(S300). A solver performing a combined FE-BEM algorithm as a piezoelectric element interpretation, a magnetostrictive interpretation, a fluid interpretation, and an elastic body interpretation is executed(S400). A post-processing displaying and confirming the result is executed by reading a simulation result file(S500). An optimization of a material and a structure by comparing a simulated acoustic sensor is designed(S600). The algorithm is verified through an actual manufacturing and a test of the optimized designed acoustic sensor(S700).
Patent KR-20010064839-A (KR)
Title: Apparatus for exchanging roll of annealing furnace
Inventor: PARK SEOK DAL
IPC: B21B31/00
Filed: 1999-12-20
Abstract: PURPOSE: An annealing furnace roll exchanging apparatus is provided to easily perform assembling and disassembling working of the annealing furnace roll, a furnace plug, and a movable block, and prevent an accident from being generated in a roll exchanging. CONSTITUTION: An annealing furnace roll exchanging apparatus(1) includes a fixed frame(30) into which a movable block(22) is inserted, securing a driving side roll shaft(10a) of an annealing furnace roll(10) and connectively installing a fixed block(82) in which a furnace plug(20) is secured; a roll shaft exchanging part(40) installing a push stick(44) pushing the roll shaft to one side of the fixed frame for forcedly separating the roll shaft from the furnace plug and the movable block; and a roll shaft supporting part(60) having a movable base(62) on the other side of roll shaft exchanging part to be forward and backward moved, and support rolls(66) rotatably installed at the top side of an ascending and descending support stand installed inside of the movable base for supporting the roll shaft.
Patent KR-20010064187-A (KR)
Inventor: JUNG MUN CHAE
IPC: G11B17/03
Filed: 1999-12-24
Abstract: PURPOSE: An automatic loader of disk drive is provided to prevent a defective operation of a tray by loading automatically as soon as loading a disk on a tray without user's motion. CONSTITUTION: An automatic loader of a disk drive is composed of a disk drive body(201), a tray(202) to be composed to carry in and out and transfers a disk(206) at the inside of a disk drive body, a protrusive part(204) to be formed at one side of the tray(202), a sensor to sense pressure caused by position change of the protrusive part(204), and a switch(206) to carry in and out tray manually. The protrusive part(204) and the sensor formed at one side of the tray(202) become to be apart until the disk(206) is loaded at the tray(202). This is called for free road state. And then if the disk(206) is loaded at the tray(202), the tray(202) becomes to be inclined slightly by weight of the disk(206) and then the protrusive part(204) formed at one side of the tray(202) presses the sensor(205).
Patent KR-20000052590-A (KR)
Title: Surface acoustic wave device
Inventor: KAWASE MINORU
IPC: H03H9/05
Filed: 1999-12-28
Abstract: PURPOSE: A surface acoustic wave device easy in packaging in a multi-chip package is provided to have IDTs(inter-digital transducer) of even characteristics through homogenizing parasite capacitance components and inductance components for all IDTs. CONSTITUTION: A surface acoustic wave device comprises a package and a plurality of surface acoustic wave chips. Herein, the package comprises a base on one main surface, and a conductor is deposited on the main surface. The plurality of surface acoustic wave chips comprises a plurality of IDTs formed on one main surface of a piezoelectric substrate, signal terminals disposed on both opposite sides on the piezoelectric substrate, and a ground terminal disposed on the piezoelectric substrate. Herein, the plurality of surface acoustic wave chips, at the signal terminals and the ground terminal, are bonded to the conductor in a face down way. An extraction of output from each IDT terminal of multi-chips are implemented through a conductor on a base.