baber/WOPTO huggingface dataset:
Patent JO-1889-B1 (JO)
Title: New oxime derivativers of erythromycine a, their preparation, their applecation as medicaments and pharmaceutical comosetions contaning them
Inventor: SOLANGE GOUIN
Filed: 1994-09-11
Granted: 1996-07-25
Abstract: A subject of the invention is the compounds of general formula (I):‎ In which:‎ Either R1 and R2 identical or different, represent a hydrogen atom, or a hydrocarbon ‎radical containing up to 24 carbon atoms, saturated or unsaturated , optionally ‎interrupted by one or more heteroatoms and optionally carrying one or more ‎functional groups,‎ or R1 and R2 form with the nitrogen atom to which they are linked a geterocycle ‎optionally containing one or more heteroatoms chosen from nitrogen, oxygen and ‎sulphur,‎ or R1 and R2 together form a radical in which R’1 and R’2 identical or different, ‎represent a hydrogen atom or a hydrocarbon radical containing up to 23 carbon ‎atoms, saturated or unsaturated, optionally carrying one or more functional groups ‎and Z represent a hydrogen atom or the remainder of a carboxylic acid containing up ‎to 18 carbon atoms, as well as the addition salts with acids of the compounds of ‎formula (I).‎ The compounds of formula( I) have useful antibiotic properties.‎
Patent KR-800000101-B1 (KR)
Title: Method of preparing dispersive type monoazo dyes
Inventor: DAKIMOTO HIROSHI
IPC: C09B29/08
Filed: 1974-01-01
Granted: 1980-03-07
Abstract: Monoazo disperse dyes (I; X = nitro, cyano, methyl sulfonyl ; R1,R2,R3 = lower alkyl ; lower alkoxy) were prepd. by coupling of diazotized 2-X-4-nitro-6-iodoaniline (II) with compd. III. polyester and cellulose ester textiles dyed with this dyestuffs had excellent sublimation resistance photo resistance and wash fastness.
Patent KR-790000141-B1 (KR)
Title: Liquid crystal composition
Inventor: TOSIO SINNAI
Filed: 1974-03-26
Granted: 1979-03-22
Abstract: Nematic liq. crystal compns. contains benzylideneaniline deriv. (I; one of X1, X2 is halogen, and the other is OH, OR, NHCOR, COOH, COOR, NH2, COR with R = hydrocarbon radical).  Nematic liq. crystal compn. are in nematic phase at room temp. and have pos. dielec. anisotropy.  Thus, I;(X1 = Cl,X2 = Bu) was added to a 1:1 mixt. of P-methoxybenzylidene-P'-butylaniline and p-ethoxybenzylidene-p'-butylaniline to give nematic liq. crystal compns. having meso range of 3-57≰C.
Patent KR-820000455-B1 (KR)
Title: Bilge water disposal system including oil recovery means
Inventor: SULLIVAN G
IPC: C02F1/40
Filed: 1975-12-08
Granted: 1982-04-03
Abstract: A disposal system for bilge water mixed with an immiscible liquid of different s. g., partic. oil, includes a gravitational separator(29) with a pumped supply of bilge water and a clean water outlet, and an I. C. engine with an exhaust delivering gases at sufficient temp. to cause flash vaporisation of clean water from the separator delivered into the exhaust line only when the engine is operating.  The separator is an inverted dome oil-water separator, the oil being removed and recovered. The pump is located between the separetor and exhaust line and the separator is sealed so that the pump sucks water into the separator while it supplies water to the line under pressure.
Patent KR-790000536-B1 (KR)
Title: Method for preparation of dried slices of fish
Inventor: CHUN C
Filed: 1978-05-26
Granted: 1979-06-02
Abstract: The head and tail of cod fish or similar fishes were removed and fed into a smasher in which paste consisting of a mixture of 93kg fish and 7kg weat gluten was rolled forming fish jerky 2-3mm thick, fed into a drier and dried to less than 10% water content. The product can be kept in long term storage, will not decompose, and is rich in protein.
Patent KR-820001251-B1 (KR)
Title: Irradiation surveillance specimen assembly
Inventor: MITCHEM J
IPC: G21G1/00
Filed: 1978-12-19
Granted: 1982-07-07
Abstract: A surveillance specimen assembly is used to house specimens(40) which monitor irradiation in a nuclear reactor vessel(10). Specimen capsules(80) are located end-to-end in an elongated holder tube(41).  The tube has perforations(51) and end closures(50).  The capsules fit together by way of V-shaped end recesses and projections, which also fit to the end closures.  An axial force is applied to constrain the stock of capsules.  The arrangement facilitates loading and withdrawal of capsules during replacement.
Patent KR-830002686-B1 (KR)
Title: Process for preparing novll cephem and cepham compounds
Inventor: DERAG ZDOMU
IPC: C07D417/12
Filed: 1979-12-29
Granted: 1983-12-07
Abstract: Cephem and cepham compds. I were prepd.  Thus, a trimethylcylacetamide mixt., contg. 7-amino-3-(1,3,4-thiadiazol-2-yl)thiomethyl-3-cephem-4-carboxylic acid and CH2Cl2, was added to a mixt. contg. 2-(4-chlorophenoxyimino)-2-(5-amino-1,2,4-thiadiazol-3-yl)acetate, PCl5, and CH2Cl2.  CH2Cl2 was removed by distillation from the mixt. and AcC2H5 was added Resulting mixt. was extd. with AcC2H5, dried with MgSO4, and treated with activated charcoal to give 7-[2-(4-chlorophenoxyimino)-2-(5-amino-1,2,4-thiadiazol-3-yl) acetamido -3-(1,3,4-thiadiazol-2-yl)thiomethyl-3-cephem-4-carboxylic acid.
Patent KR-810001375-B1 (KR)
Title: Press for recovery of olefinic nitriles
Inventor: FITZGIBBONS W
IPC: B01D3/40
Filed: 1981-02-12
Granted: 1981-10-17
Abstract: Acrylonitrile(I) or methacrylonitrile(II) is manufd. by the ammoxidn. of propylene or isobutylene and recovered from the reaction mixt. by contacting the product stream with a quenching liq. which forms a gaseous stream, absorbing the gas in water to form a soln. and distg. the soln. and added water in the 1st distn. column to remove I or II contg. water from the top slow and liq. phase effluent contg. acetonitrile, impurity and water, which is distd. in the 2nd distn. column. from the bottom flow.  At least part of the 2nd liq. phase bottom flow is recycled to the quenching liq. for the ammoxidn. product stream.
Patent KR-840002479-B1 (KR)
Title: High chrome work roll
Inventor: NAKAMURA SHIRO
IPC: C22C37/08
Filed: 1981-04-23
Granted: 1984-12-31
Abstract: A high-chromium work roll is claimed which has an outer layer consisting by wt. of C (2.0-3.2%), Si (0.5-1.5%), Mn (0.5-1.5%), P (less than 0.08%), S (less than 0.06%), Ni (0.5-2.0%), Cr (1025%), Mo (0.5-1.5%), Nb (less than 1.0%), V (less than 1.0%) and the balance Fe. The axis core consists by wt. of C (3.0-3.8%), Si (2.3-3.0%), Mn (0.3-10%), P (less than 0.1%), S (less than 0.02%), Ni (less than 2.0%), Cr (less than 1.5%), Mo (less than 1.0%), Mg (0.02-0.1%), and the balance Fe. An inter-layer consists by wt. of C (1.0-2.5%), Si (0.5-1.5%), Mn (0.5-1.5%), Ni (less than 1.5%), Cr (5-10%), Mo (less than 1.0%) and the balance Fe.  The hardness of the outer layer is Hs 70-80.
Patent KR-860001314-B1 (KR)
Title: Process for preparing thioalkylamide 1-oxide nicotinic acid salts thereof
Inventor: NISATO DINO
IPC: C07D405/12
Filed: 1982-03-11
Granted: 1986-09-13
Abstract: N-(2-(5-dimethylamino methyl(furan-2-yl methylthio)ethyl)-3pyridine carboxamide 1-oxide of formula (I) and its pharmaceutically acceptable acid addn. salts are newly prepd. by treating 2-(5- dimethylamino methyl furan-2-yl methylthio) ethylamine with a functional deriv. of nicotinic acid 1-oxide in an organic solvent at a temp. between 0≰C and the b.pt. of the solvent. Prods. are used as histamine H2 receptor blocking agents.
Patent KR-840002031-B1 (KR)
Title: Lockable slider for slide fastener
Inventor: KASAI GAZUMI
IPC: A44B19/30
Filed: 1982-07-21
Granted: 1984-11-06
Abstract: The slide fastener has a pair of independently movable sliders, each of which has a pull tab pivoted to it. A housing is mounted on the pull tab of one slider and has a driver movably received within it. The driver is in the form of a rotatable cylinder with accentric pin depending axially from the lower surface of a bolt comprising a rectangular plate within which an elongate opening is formed is moved by the drives. The eccentric pin fits into an opening to move the pin between a position partly projecting into an aperture in the pull tab and a position free of the aperture.
Patent KR-900005585-B1 (KR)
Title: Sealing device for disk brake
Inventor: RITSEMA IRVING R
IPC: F16D65/18
Filed: 1983-02-28
Granted: 1990-07-31
Abstract: The retraction seal has space in groove wall to prevent retraction seal engaging and nibbling against forward wall during braking. The disk brake (10) has a disk (14) cooperating with opposite caliper (12) by mechanism like pin-assembly (16). The caliper delays rotation of the disk by jointing a pair of friction-pads (18,20) with disk in braking.
Patent KR-860000290-B1 (KR)
Title: A process for manufacturing a good heat-proof polyester
Inventor: O SANG-YOL
IPC: D01F6/92
Filed: 1984-03-21
Granted: 1986-03-26
Abstract: Polyester having high thermal resistance is prepared by addition reaction of compd. (I) or (II) in the mole ratio of 10-6-10-2 to carbonic acid in the polymerization of terephthalic acid and ethylene glycol where: R1, R2, R3, R4, R5, R6 = C1 - C10 linear or branched aliphatic or aromatic hydrocarbvon; a ,b, c, d, e, f = 1 - 10, integer; X = Br, Cl or CH3; l, m, n, p, q = 1 - 4, integer; and A = alkyl, sulfone, or ester gp.
Patent KR-890001516-B1 (KR)
Title: Power transmitting shaft coupling
Inventor: KAWABUTCHI MASAMI
IPC: F16D3/18
Filed: 1984-06-07
Granted: 1989-05-06
Abstract: The shaft coupling consists of a driving shaft (8) and a driven shaft (10) which transmits a rotation driving power to the rolling roll by the gear coupling.  One of the shafts (8,10) can be slidable against the other by the gear coupling.  The anglevariation between the shafts (8,10) can be made by the gear coupling.
Patent KR-890000182-B1 (KR)
Title: Pharmaceutical composition containing a liquid lubricant
Inventor: HERSH MARVIN
IPC: A61K47/34
Filed: 1984-07-06
Granted: 1989-03-09
Abstract: Solid pharmaceutical agents contain an active substance, esp. oxazepam in mixt. with a liq. hydrophilic lubricant.  The liq. hydrophilic lubricant is a liq. polyalkylene glycol of mol. wt. 200- 900, pref. polyethylene glycol of mol. wt. 380-420.  The lubricant imparts suitable flow characteristics to the solid formulation, and inhibits the formation of dust.
Patent KR-920007297-B1 (KR)
Inventor: HISAJI KIYOHIDE
IPC: F28D19/04
Filed: 1984-07-14
Granted: 1992-08-29
Abstract: 내용 없음.
Patent KR-910002670-B1 (KR)
Title: Process for preparing amosulalol hydrochloride long acting preparations
Inventor: SONOBE TAKASHI
IPC: A61K47/00
Filed: 1984-08-30
Granted: 1991-05-03
Abstract: Amosulalol hydrochloride is an excellent hypotensive agent having an adrenergic  alpha -blocking action and an adrenergic  beta -blocking action. The invention provides a long acting formulation of amosulalol hydrochloride comprising amosulalol hydrochloride and an entero-soluble material (e.g. a methacrylic acid/ethyl acrylate copolymer) and optionally a pharmaceutically acceptable organic acid (e.g. citric acid or tartaric acid).
Patent KR-930003013-B1 (KR)
Inventor: URAGAMI AKIRA
IPC: H03K17/0412
Filed: 1985-03-12
Granted: 1993-04-16
Abstract: 내용 없음.
Patent KR-890002148-B1 (KR)
Title: Vapor generator and its use in generating vapors in a pressurized gas
Inventor: MOY TIMOTHY Y
IPC: B01F23/10
Filed: 1985-05-04
Granted: 1989-06-21
Abstract: Vapor generator (10) used for providing a gas carrying desired concentration of vapor of a cpd. at desired delivery pressure Pd on demand includes a vessel (12) retaining a reservoir of the cpd. in its liquid phase.  Pressurized carrier gas, at pressure Ps, is delivered from a source (14) via a first pressure regulator (32) through a gas inlet line (28) terminating with gas distributor means.  The vessel is insulated and provided with heating means so that the liquid and head space can be maintained at a desired temp. Tv.  The concentration of vapors in the outlet gas is determined by the vessel pressure Pv and temp. Tv, the former being independently controlled by the first pressure regulator.
Patent KR-870001802-B1 (KR)
Title: Method for embossing of vinyl sheet
Inventor: LEE SAM-YOL
IPC: B29C59/04
Filed: 1985-07-08
Granted: 1987-10-13
Abstract: A vinyl material sheet(1) is supplied with constant speed by a resistance roller(3) and elongated by a hot plate(9) for which heat is supplied from a heater(4).  The elongated sheet is passed through between a pressing roller(5) equipped with a cooler(5) and a rubber roller(7).  An auxiliary roller(8) supplies tension to the pressing roller for tightening the sheet.  The surface of the pressing roller is embossed with desired pattern so that the pattern is transfered while the sheet is passing on the pressing roller.
Patent KR-890001730-B1 (KR)
Title: Warming-up system of a car engine
Inventor: IWAGURA YOICHI
IPC: F02M7/12
Filed: 1985-12-28
Granted: 1989-05-19
Abstract: The starting and warm-running system has an extra supply device (26,30) comprising an extra nozzle (26) in the suction channel (14) and an electro-magnetic extra pump (30) that supplies fuel to the extra nozzle.  An angular speed detector (74) measure the speed of the engine.  A setting detector (72) detects whether the stator flap is closed (70).  The extra pump is controlled (58,60) according to the output of the speed detector and the signal indicating that the starter flap is open.  The control circuit includes a decision circuit (60) deciding whether the engine is maintaining its own speed without external help.
Patent KR-940003708-B1 (KR)
Inventor: LOTT RANDY G
IPC: G21C7/117
Filed: 1986-02-12
Granted: 1994-04-27
Abstract: 내용 없음.
Patent KR-900000151-B1 (KR)
Title: Fuel control device for internal combustion engine
Inventor: GANNO YOSHIAKI
IPC: F02D41/34
Filed: 1986-09-24
Granted: 1990-01-20
Abstract: The fuel supply control device includes an intake air detector (21) for noting the amt. of intake air, and a controller (22) for supplying drive pulse signals to fuel injectors (14) for respective cylinders of the engine (1) sequentially.  The drive pulse signals have width corresponding to an output of the intake air detector. When the drive pulse has a width larger than a predetermined value, each of the fuel injectors is drives several times for each air- intake with drive pulse haing narrower width. The device responsive to the drive pulses is actuated only when the engine is in a startng stage.
Patent KR-900000977-B1 (KR)
Title: Encryption page signal selecting circuits of teletext
Inventor: KIM KYUNG-SUB
IPC: H04N5/278
Filed: 1986-10-04
Granted: 1990-02-23
Abstract: The circuit transmitting particular information utilizing a page and receiving the particular information by selecting the page in which the information is recorded includes switches (SW1,SW2) for setting the current time and for selecting general information or particular information, comparators (COM4-COM7) for inputting time signal and for comparing the time signals from each terminals, and an AND gate (AND1) for transmitting high level signal for controlling the selection of the information.
Patent KR-950007683-B1 (KR)
Title: Color display tube with reduced deflection defocussing
Inventor: GERRITSEN JAN
IPC: H01J29/50
Filed: 1987-01-17
Granted: 1995-07-14
Abstract: Colour display tube comprising an electron gun 5 of the in-line type. The electron gun 5 comprises a main lens which is constituted by a first focussing electrode 25 and a second focussing electrode 26. The first focussing electrode comprises sub-electrodes 27, 28 placed at a distance from each other between which an auxiliary electrode constituting an astigmatic element GAST is positioned. The auxiliary electrode GAST is connected during operation to means for applying a constant voltage, whilst at least the sub-electrode 28 forming part of the main lens is connected during operation to means for applying a control voltage. The control voltage may be a static voltage or a dynamically varying voltage, for example, a parabolic voltage which is in synchronism with the line deflection.
Patent KR-900006194-B1 (KR)
Title: Permanent magnet materials and making method of it
Inventor: ARAI TOMOHISHA
IPC: H01F1/053
Filed: 1987-07-23
Granted: 1990-08-25
Abstract: The permanent magnet material has the compsn. R(CO1-x-y-alphabeta- FexCuyMalphaM'beta)A where X= 0.01-0.02, y=0.02-0.25, alpha= 0.001- 0.15, beta = 0.0001-0.001 and A= 6.0-8.3; R rare earth; M= one or more of Ti, Zr, Hf, Nb, V and Ta; M'= B or Bi+Si; and the amt. of Fe is less than 15 wt.% of total compsn. The R is at least 80 wt.% Sm and/or Cl. The material is made by the stages of melting and casting a metal mixt. in an inert atmos., crushing to particle size 10 micron max., orienting in a magnetic field, forming a shaped article, sintering in an inert atmos. at 1150-1270 deg.C for 3-6 hrs. followed by soln. heat treating at 1120-1210 deg.C for 3-12 hrs., holding at 750-850 deg.C for 4-12 hrs. and then ageing by cooling.
Patent KR-900005668-B1 (KR)
Title: Lighting apparatus
Inventor: WON JUNG-HUI
IPC: H01F27/00
Filed: 1987-09-16
Granted: 1990-08-03
Abstract: The circuit for starting the cold cathode type discharge tube like a neon lamp includes a number of start lamp (10-10") in which the mercury and inert gas are contained, and a transformer (T) flowing variable current. The start lamp provides the transformer with high frequency pulse and low current so that the secondary winding of the transformer does not need to generate high voltage. The electrode of the start lamp is made of high purity metal and covered with high purity aluminium.
Patent KR-930003721-B1 (KR)
Inventor: BORROW GEORGE J
IPC: G06F13/14
Filed: 1987-11-12
Granted: 1993-05-08
Abstract: 내용 없음.
Patent KR-940009133-B1 (KR)
Title: Shading circuit of liquid crystal display
Inventor: HAN YONG-JIN
IPC: G02F1/133
Filed: 1987-12-09
Granted: 1994-10-01
Abstract: The circuit provides the liquid crystal display element that can display output level in five phases. The circuit comprises: an interfacing chip (100) storing the data in RAM (40), a connector (30) outputting the data, a counter (10) applying output signal to the input nodes (B0, B1) of the comparator (20), an OR gate (G3) passing logical sum R & G signal to apply to (A1), and an AND gate (G1) giving logical sum and B signal, an AND gate (G1) giving logical product R & G signal, an OR gate (G4) making logical sum for the output signal of (G1) and A>B node output signal of the comparator, a video signal input node (VD) applied with the output of (G4).
Patent KR-910002066-B1 (KR)
Inventor: MOTOYOSHI DAKEO
IPC: G11B19/02
Filed: 1988-01-29
Granted: 1991-04-01
Abstract: 내용 없음.
Patent KR-910009742-B1 (KR)
Title: High voltage semiconductor device and its manufacturing method
Inventor: CHONG EUN-SEUNG
IPC: H01L29/78
Filed: 1988-05-17
Granted: 1991-11-29
Abstract: The high voltage semiconductor device includes a field  oxide (36), which is formed on a fixed region of semiconductor substrate (22) and isolated with  a  neighborhood,  and  a  diffused  region (32,34) of low concentration formed at lower part of field  oxide, and a diffused region (33,35)  of  high  concentration  formed  on semiconductor substrate which a field oxide is  not  formed.  This method provides the advantage that the source and drain  have  the high breakdown voltage in vias of gate voltage.
Patent KR-910000455-B1 (KR)
Title: Method for tissue culture of bailey alicant a
Inventor: PARK HYEONG-HWAN
IPC: C12N5/00
Filed: 1988-10-21
Granted: 1991-01-25
Abstract: Natural pigment(anthocyanin) is prepd. by  tissue  of  Bailey alicant   A(I).   Thus,   callus   of   (I)   is   cultured     in Linsmaier- Skoog(LS) medium at 30 deg.C 0-10,000  LUX,  and  120rpm for 5-9 days  with  shaking.  The  obtaind  cell  is  cultured  in modified  LS medium  contg.  less   inorganic   nitrogen   source concentration at 30 deg.C, 0-10,000LUX, and 120rpm  for  10-12days with shaking. The production rate of anthocyanin is increased.
Patent KR-0132059-B1 (KR)
Inventor: TAGUCHI KEIICHI
IPC: G11B21/10
Filed: 1988-10-28
Granted: 1998-04-18
Abstract: 내용 없음.
Patent KR-910008770-B1 (KR)
Title: Abrasion resistant composite material and process for making the same
Inventor: BAUMANN BERNARD D
IPC: C08F8/22
Filed: 1989-02-18
Granted: 1991-10-21
Abstract: The present invention is a composite material and a process for making the same. The composite material comprises a thermoset or condensation polymeric material into which has been dispersed high molecular weight polyethylene particles which have been surface treated to have a surface tension of at least 40 dyne/cm at 20 DEG C. The polyethylene particles are dispersed into the thermoset or condensation polymeric material in a concentration range of 2-80 wt% and preferably from 4-66 DEG wt% of the total composite. The resultant composite material exhibits high abrasion resistance and can easily be molded into end products.
Patent KR-940011630-B1 (KR)
Title: Custom ic measuring apparatus in proximity fuses
Inventor: YU WAN-DONG
IPC: F42C21/00
Filed: 1989-08-14
Granted: 1994-12-22
Abstract: A device is disclosed to compare the data measuring value corresponding to each condition with the reference established range in several conditions and to select only custom IC of a good quality. The device characterizes that one chip computer is connected with each latch buffer circuit, a display driving circuit and a general printer apparatus, so as data to be exchanged; one side latch buffer circuit is connected to D/A converter and an output terminal side of another latch buffer circuit is connected with the D/A converter, a multiplexer and bases of a transistor, and other latch buffer circuit is connected with multiplexers, the display driving circuit and the printer apparatus; and respective terminals of the custom IC are connected with the multiplexer, an inverter, a peak detector, a relay switch, an amplifier, a supply power part, etc.
Patent KR-0140704-B1 (KR)
Inventor: KANG CHAN-HO
IPC: H01L27/108
Filed: 1989-08-24
Granted: 1998-06-01
Abstract: 내용없음
Patent KR-940004678-B1 (KR)
Inventor: WATANABE MASAKI
IPC: B24B13/005
Filed: 1989-10-20
Granted: 1994-05-27
Abstract: 내용 없음.
Patent KR-920009030-B1 (KR)
Inventor: TAKEDA ETSUYA
IPC: G09G3/36
Filed: 1989-12-12
Granted: 1992-10-12
Abstract: 내용 없음.
Patent KR-940000357-B1 (KR)
Title: Safety device for waterworks valve body
Inventor: DUSEIL DANIEL
IPC: E03C1/04
Filed: 1989-12-21
Granted: 1994-01-17
Abstract: Security device for assembling both parts of a tap body, characterised in that the two parts (1 and 2) fit together axially and are assembled with the aid of radial screws (5) normally hidden under a ring (6) which is free in terms of rotation but immobilised axially, the said ring having a hole (9) for access to the abovementioned screws. In the case of a mixing tap, in which the rotation of the glass plate (11), performing the mixing, is controlled by a push-piece (15), the push-piece is fixed to the ring (6) and closes the hole (9) of the latter. <IMAGE>
Patent KR-0140527-B1 (KR)
Title: 플렛 케이블 제조방법
IPC: H01B13/00
Filed: 1990-01-30
Granted: 1998-07-01
Abstract: 내용없음.
Patent KR-0148790-B1 (KR)
Inventor: KIM HONG-SUN
IPC: H01L29/08
Filed: 1990-02-23
Granted: 1998-10-01
Abstract: 본 발명은 반도체 소자의 제조방법에 관한 것으로, 제1도전형의 반도체기판상에 게이트절연막을 개재시켜 게이트전극을 형성하는 단계와, 상기 게이트전극을 마스크로 사용하여 상기 반도체기판과 반대 도전형인 제2도전형의 불순물을 저농도로 주입하여 저농도 소오스 및 드레인영역을 형성하는 단계와, 상기 게이트전극을 포함하는 상기 반도체기판 상에 산화막과 질화막을 순차적으로 형성하고 상기 질화막의 상기 게이트전극의 측면과 대응하는 부분에 폴리실리콘사이드월 스페이서를 형성하는 단계와, 상기 질화막의 노출된 부분을 제거하고 상기 제2도전형의 불순물을 고농도로 이온 주입하여 고농도 소오스 및 드레인영역을 형사하는 단계와, 상기 폴리실리콘사이드월 스페이서와 질화막을 순차적으로 제거하는 단계를 포함한다.
Patent KR-940002452-B1 (KR)
Inventor: SATO YASUTA
IPC: A63H29/22
Filed: 1990-04-17
Granted: 1994-03-24
Abstract: 내용 없음.