baber/WOPTO huggingface dataset:
Patent JO-1189-B1 (JO)
Title: Agricultural sulfonamides
Inventor: GEORGE LEVITT
Filed: 1979-06-12
Granted: 1983-11-30
Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzen esulfonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylb enzenesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
Patent JO-1768-B1 (JO)
Title: Synergistic combination of a substance with gastric acid secretion inhibiting effect and an acid degradable antibiotic
Inventor: ARNE TORSTEN EEK
Filed: 1993-10-24
Granted: 1994-05-15
Abstract: The invention consists of a combination of a substance that increases the intragastric pH and an acid degradable antibacterial compound. By this combined product regimen it will be possible to obtain maximal local antibacterial effect of acid degradable antibiotics as well as enhanced bioavailability of the active antibiotic, thus resulting in higher amounts of the active compound in the gastric mucosa due to secretion of weak bases. Both pharmacological effects contribute to drastically increased antimicrobial capacity of acid degradable antibiotics to be used against local infections in the gastrointestinal tract causing gastritis and/or peptic ulcer. The invention also selects to the use of said combination and a process for the preparation thereof.
Patent JO-3794-B1 (JO)
Title: Polycyclic compounds as inhibitors of bruton's tyrosine kinase
Inventor: GENESIS M BACANI
IPC: C07D495/16
Filed: 2016-12-08
Granted: 2021-01-31
Abstract: The present disclosure is directed to compounds of Formula (I) and methods of their use and preparation, as well as compositions .(comprising compounds of Formula (I (I
Patent KR-790001824-B1 (KR)
Title: Process for reparing biphenyloxy derivatives
Inventor: SAUTER R
Filed: 1975-12-01
Granted: 1979-12-22
Abstract: Biphenyloxy derivs.  (I, R1 = C1-6 alkyl, C3-6 cycloalkyl or Ph, phenylalkyl, pyridy1; R2 = H, C1-4 alkyl ; R3 = hydroxymethyl, carboxyl, C2-7 alkoxycarbonyl C4-8 cyloalkoxy-carbonyl ; A = -CO-NH- ; n =2-3 integer) were prepd, useful as cholesterol- and triglyceride-lowering agents, by treating hydroxy-biphenyl derivs. (II) with III(X = halogen) in the presence of base such as K2CO3 or NaOH.
Patent KR-820000911-B1 (KR)
Inventor: TSUTSUI YOSHIMATSU
IPC: F16P7/00
Filed: 1978-11-01
Granted: 1982-05-24
Abstract: 내용 없음.
Patent KR-830000705-B1 (KR)
Title: 반도체 기억장치
IPC: H03K3/286
Filed: 1979-10-18
Granted: 1983-03-29
Abstract: 내용 없음.
Patent KR-830001403-B1 (KR)
Title: 액정 디스플레이 셀
IPC: C09K19/02
Filed: 1979-11-12
Granted: 1983-07-21
Abstract: 내용 없음.
Patent KR-830002806-B1 (KR)
Title: 건축 기계용 구동 시스템
IPC: F15B11/16
Filed: 1980-02-25
Granted: 1983-12-16
Abstract: 내용 없음.
Patent KR-840001708-B1 (KR)
Title: Process for preparing vovel hydroxy pyrimidine derivatives
Inventor: ESANU ANDRE
IPC: C07D239/42
Filed: 1980-03-22
Granted: 1984-10-16
Abstract: Title compds.(I; A4,A5,A6=independently H, hydroxy) were prepd. by the reaction of isopropylamine(II) and 2-thiomethylpyrimidine deriv. (III) at 100-120oC, pressure in nonpolar solvents. Thus, methyliodide reacted with thiouracil in the presence of sodium methanolate gave methylthiouracil. And 20g methylthiourcil was reacted in 200ml anhyd. toluene and 200ml isopropylamine at 110-120oC or 24hr to give 17g 4-hydroxy-2-isopropylaminopyrimidine.
Patent KR-810001642-B1 (KR)
Title: Display device for a character indication
Inventor: TAK MIN SHIK
IPC: G06F3/12
Filed: 1980-09-19
Granted: 1981-10-27
Abstract: Display device for a character indication as a small portable electronic equipment is composed of CPU(1), ROM(2), RAM(5),(7) and liq. cristal display(6) for a standard english character indication.  In this display device, korean character which is decoded to the half-gathered character code, are memorized in RAM(7) and written with the half gathered character as output.
Patent KR-860000157-B1 (KR)
Title: Manufacturing method of semi-conductor substrate
Inventor: KITANE SYOICHI
IPC: H01L21/22
Filed: 1981-12-09
Granted: 1986-02-27
Abstract: The semiconductor substrate of an NPN transitor is manufd. as following. Impurity deposition layers of the same conductivity as that of the substrate are formed on both sides of the substrate. A first insulating film is coated onto the impurity deposition layers. One side of the substrate is removed from the impurity deposition layer and the insulating film, and it is lapped onto a mirror plane. A second insulating film, a protective film, and a third insulating film are coated on both sides of the substrate. The wafers are kept tight, by pressure in the oxidation gases, to diffuse the impurities. All the insulating films and the protective film are removed from the substrate.
Patent KR-850001896-B1 (KR)
Title: Stable aqueous film-forming dispersions
Inventor: GIBSON DAVID VINCENT
IPC: C09D151/00
Filed: 1982-06-29
Granted: 1985-12-30
Abstract: A stable film-forming dispersant was prepd. for use as a surface- membrane former, an adhesive agent, and a brightener. The ready- formed polymer, an unsatd. momomer and water were mixed and stabilized by stabilizing compds., and then polymerization of the monomers was performed to give the particle dispersion soln. The H.L.B. value of the stabilizing compds. was more than 8, and the compds. had more than one ethylene double bond.
Patent KR-890003129-B1 (KR)
Title: Process for the preparation of water soluble monoazo pyrazolone compounds
Inventor: KOHLHAAS FOLKER
IPC: D06P3/10
Filed: 1982-08-18
Granted: 1989-08-23
Abstract: A fiber-reactive monoazo pyrazolone cpd. of formula (I) is prepared. In (I) D is a substd. phenyl or naphthyl gp.; M is H or an alkali metal; R is methyl, carboxy or C1-4 carboalkoxy; R1 is H or C1-4 alkyl; R2 is H, C1-4 alkyl, C1-4 alkoxy or Cl; R3 is H, C1-4  alkyl or C1-4 alkoxy; Y is vinyl or ethyl; Hal is Cl or F. The cpd. is useful for dyeing cellulose PVA, wool, silk and polyamides.  The cpd. gives a good build-up of colour.
Patent KR-840001411-B1 (KR)
Title: Method for reservating fish on condition that fresh
Inventor: PARK MAN-JU
IPC: A23B4/14
Filed: 1983-02-10
Granted: 1984-09-26
Abstract: A method for pressrving fresh fish is described. Thus, dried weeds were selected. Seedcases of the weeds were gathered and boiled at 100oC for > 20 min to remove the flavor of the weeds. The steamed seedcases were dried to give the products. 5 kg - 7 kg of polychaeta can be packed with 1 kg of the seedcase product. the seedcase products. This product keeps polychaeta freshly preserved.
Patent KR-900009044-B1 (KR)
Inventor: TSENG SHIN-SHYONG
IPC: C07C67/00
Filed: 1983-03-18
Granted: 1990-12-17
Abstract: 내용 없음.
Patent KR-890000101-B1 (KR)
Title: Integrated scrambler-encoder using sequence
Inventor: WALDON EDWARD J JR
IPC: H04L25/03
Filed: 1983-05-11
Granted: 1989-03-07
Abstract: An exclusive OR gate associated with counting stages causes the counter to generate pseudo-random number sequences.  A scrambler- encoder also has an input and a number of counter stages for counting code lengths.  A scramber also break up any character strings of all ones or zeros.  The counter is driven by a master clock input on line.  A parity check generator generates parity bits.  A switching logic determines periods during which the output will receive scrambled data and when it will receive parity bits.  This apparatus performs both encoding and scrambling steps simultaneously, and is suitable for inter-computer sattellite communication networks.
Patent KR-880000375-B1 (KR)
Title: Polyester fiber and it's method
Inventor: DAKEHIKO MIYOSI
IPC: C08G63/688
Filed: 1983-07-08
Granted: 1988-03-20
Abstract: The fibre (I) with a tenacity of at least 4.0 g/d comprises a copolyester (II) with a degree of polymerisation 80-100 which includes an acid component contg. 1.0-2.0 mol.% metal sulphoisophthalic residues (III) and 0.5-1.9 wt.% of a glycol residue from a glycol (IV) of mol. wt. 400-6000.  Also claimed is a method of making (I) which comprises spinning (II) in a spinneret (V) and then drawing the resultant fibres. (IV) is a polyalkylene glycol of formula A(CnH2nO)mH (where A is C1H2++10 deg. or OH, 1 is 1-10; n is 2-5 and m is 3-100) derived from a low mol. wt. glycol comprising ethylene glycol or 1.4-butane diol.
Patent KR-860001836-B1 (KR)
Title: Unit curtain wall
Inventor: GARTNER KARL
IPC: E04B2/96
Filed: 1983-07-26
Granted: 1986-10-24
Abstract: The horizontally adjacent curtain wall units(10) are supported by a fastener(12) on a building skeleton frame(11). The fastener includes a member(40) adjustably fastened to the building frame(11) and a second member(47, 103) adjustably attached to the first member and having a slot(51) and a bearing element(53, 106). To a pair of confronting vertical frame members(13, 14) belonging to a pair of adjacent wall units, are fastened brackets (59, 58). One bracket has an arm(62) engaging in slot and the other bracket has an arm (63, 107) movably supported on a bearing element. The bearing element may comprise a roller or a ball for allowing the bracket and hence vertical frame member attached to move horizontally parallel to the curtain wall units.
Patent KR-920000966-B1 (KR)
Inventor: KUSHIHASHI KEIZO
IPC: H02G3/00
Filed: 1984-02-02
Granted: 1992-01-31
Abstract: 내용 없음.
Patent KR-910001767-B1 (KR)
Inventor: WILFRIED BALD
IPC: B21B13/14
Filed: 1984-03-02
Granted: 1991-03-23
Abstract: 내용 없음.
Patent KR-890000451-B1 (KR)
Title: Enhanced sootblowing system
Inventor: DZIUBAKOWSKI DONALD J
IPC: F23J3/00
Filed: 1984-06-19
Granted: 1989-03-17
Abstract: This invention is an optimal soot-blowing method for a boiler which has multiple heat traps arranged along the gas flow way and uses fossil fuel.  At first, a soot-blowing set time of each heat trap based on a pollution model of boiler, and then based on a parameter of soot-blowing and a loss factor, an optimal time of soot-blowings of all heat traps are calculated.  And a difference value of set and operating times of each heat trap is gained by comparing a properly selected value appropriate to eliminat soots from each heat trap with a difference value of each trap.  The difference value is equalized with a selected value of only a heat trap and a soot-blowing in the heat trap goes into effect.
Patent KR-860001424-B1 (KR)
Title: Fishing feed for attracting fish
Inventor: LEE KUM-YONG
IPC: A23K1/18
Filed: 1984-09-08
Granted: 1986-09-24
Abstract: Fishing feed contg. foaming agents was described. A mixed powder contg. 500g talc, 500g clay, 150g starch, and 150g bran was mixed with 9g tartaric acid, 10g acidic sodium carbonate, 50g liquid paraffin oil, 30g epoxy adhesives, and 2g Anethol to give fishing feed. This material showed an attracting effect on fish by vision, smell, and taste. One or more components among potassium carbonate, Na-carbonate, and ammonium carbonate were mixed with one or more components among oxalic acid, succinic acid, malonic acid, azeleic acid, tartaric acid, and citric acid. This mixt. was used as the foaming agent and paraffin oil was used as antifoaming agent.
Patent KR-850000889-B1 (KR)
Title: Process for preparing trisubstituted imidazole derivatives
Inventor: SALLMANN ALFRED
IPC: C07D233/20
Filed: 1984-09-27
Granted: 1985-06-26
Abstract: The title compds. I[ R1 = R2 = (un)substd. phenyl, (un)substd. pyridyl; A = lower alkylene; R3 = carboxy, (un)substd. lower alkoxy carbonyl, carbamoyl  and their pharmacologically permissible salts are prepd. for use as an antiphlogistic. Thus, 3.0ml 1N NaOH is added to 0.9 g 2-[4(5)-phenyl-5(4)-(1-oxydo-3pyridyl)-2-yl -2-methyl ethyl propionate soln. in 10 ml methanol, and stirred 15 h. The methanol is removed at 40≰C 11 torr, via extraction and evaporation, crystallization of the remains gives 2-[4(5)-phenyl-5(4)-(1-oxydo-3- pyridyl)-imidazole-2-yl -2-methyl propionic acid.
Patent KR-890003553-B1 (KR)
Title: Magnetic head
Inventor: ZUKAHIKO ZUNEHIRO
IPC: G11B5/133
Filed: 1985-01-23
Granted: 1989-09-23
Abstract: Coil receiving grooves are provided on opposite sides of a block of magnetic material made of sendust.  A coil receiving grooves is cut in a second block of magnetic sendust material.  A number of track width regulating grooves are cut in both the first and second blocks.  The regulating grooves extend in a direction perpendicular to the coil receiving grooves.   A non-magnetic layer having a thickness equal to approximately half the width of a desired head cap is provided on predetermined portions of first surfaces of the magnetic blocks.  The first surfaces of the magnetic blocks are placed with a foil of a silver brazing alloy inserted between portions of the first surfaces.
Patent KR-890003399-B1 (KR)
Title: Strip shape control apparatus
Inventor: WAKAMIYA YOSHINORI
IPC: B21B37/28
Filed: 1985-01-23
Granted: 1989-09-20
Abstract: Shape control arrangement for flat material in hot rolling uses a computer for calculating the thermal barrelling of the rolls and calculating a value in the width direction based on information on roll hysteresis after a new arrangement of the rolls.  A further computer calculates roll wear from this information, while a computer is provided for optimum temp. distribution in the width direction, based on the output from the first two computers and reference bending force, enabling max. bending correction amplitude.  A temp. measurement device on the entry side of the mill detects temp. distribution over the width from measurements at several points.
Patent KR-890004044-B1 (KR)
Title: Method of rapidly changing deposition amount in a continuous vacuum deposition process
Inventor: SHIMOZATTO YOSHIO
IPC: C23C14/56
Filed: 1985-05-28
Granted: 1989-10-18
Abstract: Apparatus rapidly changes the deposition rate of a vapour in a continuous vacuum deposition process by providing acoustic velocity (choke phenomenon) to the vapour flow and controlling this flow by changing the cross sectional area of the vapour path. This is done by detecting deposited metal thickness and using the signal to change the shutter aperture at the junction of the metal evaporation chamber and the vapour channel of the vacuum deposition apparatus, which in turn changes the power supply to the heater of the evaporation chamber.
Patent KR-890000302-B1 (KR)
Title: The projection method of the nega film
Inventor: CHANG MIN-HYUNG
IPC: G03B15/00
Filed: 1985-07-25
Granted: 1989-03-13
Abstract: The negative film (1) is projected by a CRT (10) coated by a fluorescent material whose spot residue time is short.  The projected image is converted to the position one by a photo amplifier (2), photo filters (3-5), and photo transistors (PT1-3).  The converted image are provided to an image modulation circuit (9) through a matrix circuit (8).  A deflection circuit (6) for the CRT (10) and the image modulation circuit (9) is synchronized by the synchronous signal generator (7).
Patent KR-900000673-B1 (KR)
Title: Process for preparing dihydrobenzo (b) thiophenes
Inventor: RANE DINANATH P
IPC: C07D333/00
Filed: 1986-08-06
Granted: 1990-02-02
Abstract: Dihydrobenzo[b  thiophenes of formula (I) or their pharmaceutically acceptable salts are prepd. by reducing carbonyl gp. of a cpd. of formula (II) with metal borohydride or aluminum hydride.  In the formulas, R1=H; R2=OH; R3= -CH(R7)-C(R8)=CHR8 or -CH(R7)-CH(R9)- CH2R8[R7, R8 and R9 are each H, Ph or halo-substd. Ph ; Y=imidazolyl or 1,2,4-triazolyl; m=n=1.  (I) are useful for treating fungi- infection.
Patent KR-900009124-B1 (KR)
Inventor: YAMADA JUNJO
IPC: G06F11/20
Filed: 1986-11-12
Granted: 1990-12-22
Abstract: 내용 없음.
Patent KR-910002532-B1 (KR)
Title: Novel insecticidal diacylhydrazine compounds and novel substituted and unsubstituted benzoic acid 1-alkyl,2-alkyl and 2-cycloalkyl hydrazides
Inventor: ADDOR ROGER W
IPC: A01N43/00
Filed: 1986-12-08
Granted: 1991-04-23
Abstract: The present invention relates to unsubstituted diacylhydrazine compounds and novel substituted diacylhydrazine compounds useful as insecticidal agents. These diacylhydrazines control insect populations and protect agronomic crops, trees, shrubs and ornamentals, both while growing and after harvesting, from insect attack. Novel substituted benzoic acid 1 and 2-alkyl and 2-cycloalkylhydrazides effective as insecticides or intermediates for the preparation of insecticidal diacylhydrazides also are presented.
Patent KR-940001622-B1 (KR)
Inventor: HOLMBERG ARNOLD C V
IPC: B63H1/14
Filed: 1985-10-14
Granted: 1994-02-28
Abstract: 내용 없음.
Patent KR-900006034-B1 (KR)
Title: Low stressed epoxy resin composition
Inventor: LEE CHUNG-DAE
IPC: C08L63/00
Filed: 1987-06-26
Granted: 1990-08-20
Abstract: Modified resin compsn. contg. 10-50 wt.% of insoluble unmeltable spherical particle is prepd. by first reaction of the mixt. of at least one epoxy resin and the mixt. of at least synthetic rubber cpds. having reactive radical at both of its terminal position; then second reaction of alcohol modified polysiloxane having at least one hydroxy gp. in its molecula and silane cpd. having reactive radical at its terminal position with the obtd. mixt.. The epoxy resin has good heat resistant, anti-crack and anti-humidity properties and is useful for encapsulation of semiconductor.
Patent KR-950006152-B1 (KR)
Title: Process for preparing isothiazolones
Inventor: CHANG SOU J
IPC: C07C319/00
Filed: 1987-07-30
Granted: 1995-06-09
Abstract: In the manufacture of a compound of the formula: <CHEM>  (a) a mixture of a compound of the formula: <CHEM> and an alcohol or an equivalent thereof and (b) strong inorganic acid, are cofed optionally to an appropriate solvent; wherein X is hydrogen, alkyl, alkenyl or aryl and R is optionally substituted secondary alkyl, tertiary alkyl or aralkyl. The compound so made can be treated with a thiolating agent to form an N-substituted-3-mercaptopropionamide which in turn can be halogenated to an isothiazolone biocide.
Patent KR-900000846-B1 (KR)
Title: Oily granulates for cosmectic
Inventor: CHO WAN-KU
IPC: A61K8/02
Filed: 1987-08-06
Granted: 1990-02-17
Abstract: (a) mixing 90.0-97.0 wt.% wax(i.e. carnabau, canderilla, honey and microcrystalline wax) with 3.0-10.0 wt.% liq. oil(i.e. castor oil, olive oil) at 60-65 deg.C; (b) admixing pigment i.e. yellow #205, orange #204, red #220, blue #201 or these mixt.; and (c) molding the mixt. in the spraycooler.  The granules are added to cosmetics by 0.5-10.0 wt.%.
Patent KR-900008147-B1 (KR)
Title: Semiconductor device
Inventor: SAMATA SUICHI
IPC: H01L29/78
Filed: 1987-11-19
Granted: 1990-11-03
Abstract: A semiconductor device with improved contact resistance characteristics between a silicon substrate (1) and a metal lead layer (11) has a multi-layered insulation film of a non-doped CVD SiO2  film (5) and a boro-phospho-silicate glass film (6) formed on the silicon substrate (1). A contact hole in the SiO2 and glass films exposes an impurity diffused region (8) in the silicon substrate (1), a single crystal silicon layer (7) is formed in the contact hole, and an aluminium film (11) is formed on the semiconductor layer (7).
Patent KR-930003981-B1 (KR)
Inventor: OKOMA KAORU
IPC: F04C29/02
Filed: 1987-12-30
Granted: 1993-05-19
Abstract: 내용 없음.
Patent KR-900009203-B1 (KR)
Inventor: ISHIGAKI REISABURO
IPC: A23L19/00
Filed: 1987-04-20
Granted: 1990-12-24
Abstract: 내용 없음.
Patent KR-960016333-B1 (KR)
Inventor: GRAIG GODEN SMITH
IPC: G01N21/31
Filed: 1988-03-18
Granted: 1996-12-09
Abstract: 요약없슴
Patent KR-910007336-B1 (KR)
Inventor: ENDO TOSHIHIKO
IPC: C08L67/02
Filed: 1988-04-20
Granted: 1991-09-25
Abstract: 내용 없음.
Patent KR-960000474-B1 (KR)
Title: Method for producing ceramic/metal heat storage media and to the product thereof
Inventor: RAPP ROBERT ANTHONY
IPC: C09K5/06
Filed: 1988-07-06
Granted: 1996-01-08
Abstract: A heat storage medium comprising a body of parent metal and an intrinsically cohesive ceramic layer formed integrally with the metal body and encapsulating said metal body is produced by the directed oxidation of a body of parent metal outwardly from the surface of said body to form integrally with the body of parent metal a layer of oxidation reaction product which encapsulates unreacted parent metal and forms a cavity resulting from the depletion of parent metal.
Patent KR-960015260-B1 (KR)
Inventor: GERT FLACHENECKER
IPC: B24B55/10
Filed: 1988-07-25
Granted: 1996-11-07
Abstract: 내용없음.
Patent KR-920002742-B1 (KR)
Title: Sewerage dredger
Inventor: BIN MOO-YUN
IPC: E03F7/10
Filed: 1988-08-08
Granted: 1992-04-02
Abstract: A driving engine (2) drives a sprocket (3) and a middle shaft (5) to rotate a drum  on  which  a  wire  rope  (9)  is  wound.  A hydraulic pump (19) drives  a  forward  and  rearward  advancement adjusting means (18) and a forward and  reverse  revolution  means (16) simultaneously. Consequently, a rotary frame (11) is  driven, and a rotary drum  (12)  is  made  to  perform  orbital  and  spin motions, thereby arbitrarily adjusting the  forward  and  rearward advancements and forward and reverse revolutions of  the  drum  on which a steel wire is wound.
Patent KR-900006417-B1 (KR)
Title: Blood collection valve
Inventor: BEITER BERNER
IPC: A61B5/15
Filed: 1988-10-05
Granted: 1990-08-31
Abstract: A valve for placing between a tube supplying or discharging fluid from a vessel and a fluid collector or supply comprises an input part (11.1) with a half-moon shaped separating wall opening (18), and an output part (12.1) rotatable with respect to the input part and with a seal face opening (23). Both openings are outside the rotational axis of the associated parts so as to be aligned or separated to close communication by rotation about the axis. An inner cone (22) passes through the output part to engage with an application cone on the collector or source. The output part is movable when the cones engage each other, and a valve means associated with the parts is concentric with the axis near where the parts engage one another and is movable with respect to the parts.  There is pref. a rubber gasket to seal against the wall.
Patent KR-960016444-B1 (KR)
Inventor: NAKAYAMA YOSHIAKI
IPC: H04N9/73
Filed: 1988-12-29
Granted: 1996-12-11
Abstract: 없음.
Patent KR-910006929-B1 (KR)
Title: Rpocess for making sensoned meat and vegetables for dumplings from radish
Inventor: KIM JUNG-WOOK
IPC: A23L19/10
Filed: 1989-02-10
Granted: 1991-09-14
Abstract: A process for preparing  seasoned  meat  and  vegetables  for dumplings is characterized by  cutting  raw  radish  into  uniform size, blanching at 90 deg.C  for  10min  in  the  seasoned  soln., dehydrating, quickfreezing at -45 deg.C for 20min, and mixing with oil and fat (e.g. beef tallow, lard, etc),  extracted  soln  (e.g. beef-, pork-, or  chicken  extract),  soysauce,  M.S.G.,  caramel, I.S.P., garlic, ginger, pepper powder, etc  to  obtain  the  final product.  The obtd. product has a good taste and flavor.
Patent KR-920005390-B1 (KR)
Title: Contact window forming method
Inventor: AN TAE-HYOK
IPC: H01L21/302
Filed: 1989-06-13
Granted: 1992-07-02
Abstract: The method includes forming an  oxide  film  to  prevent  the electrical  contact  between  a  side  conductor  and   an   upper conductor, and forming an oxide film  under  the  upper  conductor layer to prevent the  redistribution  of  impurities  between  the upper  conductor  and  the  lower  insulation  film.  The   method comprises forming a first insulation film (4) on an oxide film (3) with first and second wiring layers (1,2), etching the films (3,4) by using an opening pattern to form a contact window (5),  forming a second insulation film (6) on the contact (5), etching the layer (6) by anisotropic etching process to open the lower part  of  the contact (5), etching the layer (4) partially, and forming a  third wiring layer (7) on the contact (5).