baber/WOPTO huggingface dataset:
Patent KR-20030033799-A (KR)
Title: Evacuated glass tubes solar collector by using heat pipe
Inventor: CHOI KO WOON
IPC: F24S10/95
Filed: 2001-10-25
Abstract: PURPOSE: A heat pipe solar heat collecting apparatus is provided to achieve improved economic advantages by significantly improving use efficiency of solar heat. CONSTITUTION: A heat pipe solar heat collecting apparatus comprises a plurality of collector pipes(2) each of which has a circular vacuum space and is formed of a glass pipe; a heat accumulator(1) for storing the heat medium to be heated by the heat transferred from the collector pipes; a heat pipe arranged in a lengthwise direction within the heat collector pipe and heated by the solar light, wherein the heat pipe has an end extended to the interior of the heat accumulator; pipes(14a,14b) connected to the heat accumulator; and a hot water storage tank(10) connected to the pipes. The heat accumulator contains water and is connected to the hot water storage tank.
Patent KR-20030034755-A (KR)
Title: Hand-off method in mobile communication system having flat structure
Inventor: LEE SEONG WON
IPC: H04W36/00
Filed: 2001-10-26
Abstract: PURPOSE: A handoff method in a mobile communication system having a plane structure is provided to reduce load when performing a handoff of an Inter-BSC(Base Station Controller) in a network of a plane structure. CONSTITUTION: An MT transmits a handoff request message to a target base station(500). At this time, an ID of the MT and an ID of an anchor base station are included to the transmitted message. The target base station checks the received message and transmits the handoff request message to the corresponding anchor base station. At this time, the target base station transmits the ID of the MT together with its own ID. Then the anchor base station sets a connection(520) and then transmits a traffic through the corresponding target base station(530).
Patent KR-20010110373-A (KR)
Title: 바코드가 인쇄된 지로용지의 대량 접수장치
Inventor: LEE JAE CHUL
Filed: 2001-10-27
Abstract: 본 발명은 바코드가 인쇄된 지로용지의 대량 접수장치에 관한 것으서, 투입구(14)와 방출구(16)를 구비한 지로용지의 접수장치에 있어서, 상기 투입구(14)를 통해 투입된 복수의 지로용지(20)를 동시에 스캐닝 하는 스캐너(31); 상기 스캐너(31)의 출력 이미지를 사용자에게 표시하고, 상기 사용자로부터 명령어를 입력받기 위한 터치스크린(12); 상기 복수의 지로용지(20)를 일방향으로 이송할 수 있는 이송베드(30); 배열된 복수의 지로용지(20)상에 인쇄된 각 바코드(22)를 순차적으로 독출할 수 있는 스캔수단; 및  사용자의 명령에 기초하여, 투입된 상기 지로용지(20)를 적재 또는 방출하는 적재/방출수단을 포함하는 것을 특징으로 하는 바코드가 인쇄된 지로용지의 대량 접수장치가 제공된다.
Patent KR-20030035510-A (KR)
Title: Many purposes cooker for steaming and roasting
Inventor: BAK JU HWAN
IPC: A47J27/00
Filed: 2001-10-31
Abstract: PURPOSE: A multi-purpose cooker for steaming and roasting is provided to rotatably support a cooking plate such as a grill in a main body and install a shutter for the opening/closing of a part of cover, thereby removing a heat loss and inconvenience in the operation of the cover. CONSTITUTION: A multi-purpose cooker for steaming and roasting is composed of a cooker main body(10), a cover(20) for covering the main body(10), and a cooking plate(30) for supporting a food to be cooked in the main body(10) and discharging oil from the food downward. A multi-purpose cooker further comprises a rotation supporter for rotatably supporting the cooking plate(30) in a certain interval with a bottom surface of the main body(10) and an opening/closing unit for opening/closing a part of the cover(20) to cook the food by rotating the cooking plate(30) through the opening/closing unit.
Patent KR-20030037206-A (KR)
Title: An exclusion instrument of guinea pepper stem
Inventor: JUNG DONG MAN
IPC: A23N15/00
Filed: 2001-11-03
Abstract: PURPOSE: A device for automatically removing stalks of hot peppers is provided, thereby automatically and effectively removing the stalks of hot peppers in a short time. CONSTITUTION: A device for automatically removing stalks of hot peppers comprises a body(1); a hot pepper inserting portion(2) above the body; a motor(3) under the body; a conveyer belt linked to the motor(3); a hot pepper fixing portion having an opening(5) above the conveyer belt; a hot pepper removing portion in one side of the conveyer belt comprising a plurality of tong portions operated by a controlling portion; a tong fixed by a hinge in the tong portions; an electromagnet vertically moved above the tong portion and connected to the controlling portion; a hot pepper transfer belt(13) in one side of the conveyer belt; a stalk storing box(15) under the hot pepper transfer belt(13); and a hot pepper storing box(16) under the hot pepper transfer belt(13).
Patent KR-20030040793-A (KR)
Inventor: KIM MUN WON
IPC: F25D23/02
Filed: 2001-11-16
Abstract: PURPOSE: A stopper apparatus of a door of a refrigerator is provided to achieve improved use convenience by maintaining the open state of the refrigerator door through the use of the stopper apparatus. CONSTITUTION: A stopper apparatus comprises a door(20) for opening/shutting a food storage space; a support leg(30) arranged at the outer bottom of the door in such a manner that the support leg is rotatable centering from a hinge pin(31); and a cushion arranged at the front end of the support leg in such a manner that the cushion selectively contacts a floor(40) so as to maintain the open/shut state of the door. The support leg includes the first extended portion inclined from the hinge pin toward the door shutting direction when the cushion tightly contacts the floor; and the second extended portion extended downward from the front end of the first extended portion, which has a front end mounted with the cushion.
Patent KR-20030041504-A (KR)
Title: Variable length-type pencil
Inventor: CHOI MAN SU
IPC: B43K5/17
Filed: 2001-11-20
Abstract: PURPOSE: A length-variable pencil is provided to avoid a brush inside the pencil from being exposed to fumes or dusts in the air, impurities or the like by sealing the inside of the pencil when the pencil is not in use. CONSTITUTION: The pencil comprises: a rectangular inner housing(20) which is vertically opened; a power transmission unit(70) fixed and mounted to the inside of the inner housing; a first outer housing circumscribing the top of the inner housing and being slid; a head unit having a head fixed to one end of the first outer housing; a second outer housing(40) fixed and mounted to the bottom of the inner housing and having a through hole formed at the lower end; and a withdrawal portion(50) movably installed to the inside of the inner housing.
Patent KR-20030041577-A (KR)
Title: Solid dispersions containing substituted cyclodextrin and insoluble drug and their preparations
Inventor: JANG SI YEONG
IPC: A61K9/20
Filed: 2001-11-20
Abstract: PURPOSE: Provided is a method of preparing solid dispersions with poorly water soluble drugs, substituted cyclodextrin and a water free organic solvent. The pharmaceutical composition containing the solid dispersions improves the dissolution rate of poorly water soluble drugs and thus maximizes bioavailability. CONSTITUTION: Poorly water soluble drugs except for itraconazole and saperconazole, and cyclodextrin containing a substituent are dissolved in a water free organic solvent and dried by a vacuum drying method or a spray drying method to produce solid dispersions. The solid dispersions contain 0.1 to 10 parts by weight of substituted cyclodextrin, based on 1 part by weight of poorly water soluble drugs. The poorly water soluble drugs are one ore more selected from the group consisting of ibuprofen, S-ibuprofen, ketoprofen, piroxicam, ketoconazole, domperidone, docetaxel, paclitaxel, acyclovir and sodium alendronate.
Patent KR-20030042133-A (KR)
Inventor: KANG WON JUNG
IPC: C02F1/44
Filed: 2001-11-21
Abstract: PURPOSE: Provided are a method and an apparatus for in-situ cleaning submersed membrane in a reactor without separating or moving the membrane to an additional place, so that an additional cleaning tank and waste washing water treatment are not needed. CONSTITUTION: The method comprises the steps of stopping membrane filtration process by stopping a pump(30); stopping air supply device(50) installed under the membrane(10) for stopping air supply to a reactor(20), supplying cleaning liquid to the membrane, wherein the membrane is cleaned as the cleaning liquid infiltrated thereinto, and supplying air to the membrane by starting the air supply device, thereby diluting or volatilizing the leaked cleaning liquid.
Patent KR-20030053689-A (KR)
Title: Overlay mark and measuring method of resolution using the overlay mark
Inventor: KIM HONG RAE
IPC: H01L21/027
Filed: 2001-12-22
Abstract: PURPOSE: An overlay measuring target and a method for measuring resolution using the same are provided to be capable of measuring the resolution of patterns formed in a photolithography process using a low cost overlay measuring equipment. CONSTITUTION: An overlay measuring target is provided with an overlay measuring basic target and a resolution pattern made of a plurality of unit patterns(103) having a predetermined thickness. At this time, the basic target for overlay measure includes an inner box(101) and an outer box(102) formed at the outer portion of the inner box(101). At the time, the unit patterns(103) are formed and separated from each other at the outer portion of the outer box(102). Preferably, the unit pattern includes a plurality of sub patterns(103a). Preferably, the inner box, out box, and unit pattern have a thickness of about 1μm, respectively.
Patent KR-20030053719-A (KR)
Title: Method for preventive edge build up of zinc coated strip
Inventor: HAN SU HO
IPC: B21B37/28
Filed: 2001-12-22
Abstract: PURPOSE: A method for preventing build up of edge part in galvanized strip by stably controlling generation ratio of the edge build up from 10% level to 0.3% or less in galvanizing process for manufacturing a galvanized strip is provided. CONSTITUTION: The method is characterized that crown of hot rolled coil is controlled to 50 to 60 μm by setting up bender force of stand No. 1 and No. 2 of finish rolling mill as 20 to 50 kgf/cm¬2 and setting up angle of pair cross as 0.2 to 0.3 degree of an angle when hot rolling an article to be galvanized, wherein it is preferable to set up a standard for satisfying less than 3.0% of flatness ((wave height/wave length)x100) at a target crown or more to secure flatness of the strip and satisfying less than 10 mm of off center to prevent deflection of the strip, and build up is prevented from being formed after galvanizing when operation is carried out within the flatness and off-center standard ranges as in operation conditions of 5 mm of off-center, 66 μm of crown and 2.3% of flatness.
Patent KR-20030053895-A (KR)
Title: Method for Performance Advancing of Message Handling in No.7 Signaling Network
Inventor: KIM CHE HWON
IPC: H04Q3/42
Filed: 2001-12-24
Abstract: PURPOSE: A method for enhancing performance of a signal message processor in a No.7 signaling network is provided to quickly search a signal routing table and minimize a delay generated in processing a signal message according to its kind. CONSTITUTION: When a signal message processor receives a message desired to be transmitted in a service sub-system(S61), the system extracts information on an originating signaling point and a destination signaling point of the message(S62). The system directly accesses a position of the signaling point of a signaling point index table by using a local station signaling point and the destination signaling point of the message to extract information of a signal routing table(S63). The system immediately accesses a position of corresponding routing information of the signal routing table by using a routing table index recorded in the signaling point index table(S64). The system distributes the message according to the signal routing table information or transfers it to a remote station(S65).
Patent KR-20010079738-A (KR)
Title: Method for controlling a current-regulated motor
IPC: H02P6/10
Filed: 1999-09-02
Abstract: The invention relates to a method for controlling an alternating-current motor fed from a current-controlled alternating-current source, in which method the effect of harmonic moments generated in the motor is compensated. According to the invention, the torque of the motor is regulated by means of a current reference and that the current reference is corrected to compensate the harmonic moment.
Patent KR-20010075195-A (KR)
Title: High strength steel sheet and method for manufacturing the same
IPC: C22C38/24
Filed: 2000-09-13
Abstract: The present invention relates to a method for manufacturing high strength hot dip zinc-coated steel sheet comprising the steps of : hot-rolling a steel slab consisting essentially of 0.01 to 0.3% C, 0.7% or less Si, 1 to 3% Mn, 0.08% or less P, 0.01% or less S, 0.08% or less sol.Al, and 0.007% or less N, by weight, at temperatures of Ar 3  transformation point or above; cooling the hot-rolled steel sheet within 2.5 seconds down to the temperatures of from above 500°C to 700°C at average cooling speeds of 100°C/sec or more, followed by coiling the cooled steel sheet; and picking or pickling and cold-rolling the coiled steel sheet, then annealing thereto in a continuous hot dip zinc-coating line at temperatures of 720°C or above to perform zinc coating.
Patent KR-20010075478-A (KR)
IPC: G09G5/36
Filed: 2000-07-19
Abstract: 본 발명은, 움직임 이미지 데이터 입력을 수신하고, 움직임 추정기를 사용하여 상기 이미지 데이터 입력에 나타난 이미지 부분의 움직임에 대한 추정을 추출하고, 이미지 프레임의 각 이미지 서브프레임의 디스플레이의 시간의 순간에 대해, 프로세서를 사용하여 디스플레이 인조 잡상을 감소시키기 위한 보상된 표시를 계산하며, 각 서브프레임은 상기 이미지 프레임의 상이한 양상을 나타내는, 순차식 칼라 디스플레이의 움직임 보상을 위한 시스템 및 방법에 관한 것이다. 서브프레임이 이미지 프레임의 상이한 칼라 평면인 것이 바람직하다. 프로세서는, 보상된 이미지 경계선이 디스플레이 픽셀 경계선의 범위에 있지 않는 쌍일차 보간을 수행하는 것이 바람직하다. 움직임 보상 알고리즘은, 잘못된 움직임 벡터에도 불구하고 강력한 것이 바람직하다. 그 기술이 다양한 이미지 디스플레이 기술에 응용가능 할지라도, 이 시스템 및 방법이 단일 패널 액정 디스플레이 투사 시스템에 사용되는 것이 유리하다.
Patent KR-20010080075-A (KR)
Title: Method and radio communication system for regulating power between a base station and a subscriber station
IPC: H04B7/26
Filed: 1999-10-08
Abstract: The method involves determining the value of the transmission power of a second radio station in a first radio station and passing the value back to the second station in a subsequent transmission. The second station takes the value into account in subsequent transmissions. The value is related to a variable step size for transmission power setting, which is set depending on the subscriber and time.
Patent KR-20010080402-A (KR)
Title: CRF receptor antagonists and methods relating thereto
IPC: A61P37/02
Filed: 1999-11-12
Abstract: Compounds are disclosed which have utility in the treatment of a variety of disorders, including the treatment of disorders manifesting hypersecretion of CRF in a warm-blooded animals, including stroke. The compounds of this invention have the following structures: wherein n, m, R, R1, R2, X and Ar are as defined herein, including stereoisomes and pharmaceutically acceptable salts thereof.
Patent KR-20020018644-A (KR)
Title: Electrolyte systems for lithium batteries, the use thereof and method for enhancing the safety of lithium batteries
IPC: H01M10/0567
Filed: 1999-12-14
Abstract: An electrolyte system for lithium batteries with enhanced safety. The system contains at least one conductive salt containing lithium and at least one electrolyte liquid. The electrolyte liquid contains an effective amount of a partially fluorinated compound derived from a diol corresponding to the formula (I):in which R<1 >is a (C1-C8)-alkyl or (C3-C8)-cycloalkyl group, and each R<1 >group is partially fluorinated or perfluorinated so that at least one hydrogen atom of the group is replaced by fluorine; R<2 >is a (C1-C8)-alkylcarbonyl or (C3-C8)-cycloalkylcarbonyl group, and each R<2 >group may optionally be partially fluorinated or perfluorinated; R<3 >is a hydrogen atom or a (C1-C8)-alkyl or (C3-C8)-cycloalkyl group; m is 0, 1, 2 or 3; and n is 1, 2 or 3.
Patent KR-20010112305-A (KR)
IPC: H01L21/02
Filed: 2000-03-01
Abstract: 본 발명은 강유전성 스택과 실리콘 사이에 삽입된 비정질 차단층(72)을 포함하는 실리콘 기판(22) 상의 강유전성 셀(70)에 관한 것이다.  바람직하게는, 강유전성 스택은 강유전층을 중심으로 해서 위 아래로 배치된 도전성 금속 산화물 전극을 포함한다.  금속 산화물은 강유전층을 결정학적인 방향 설정을 하는 주형 층 역할을 할 수 있다.  선택적으로, 전극 및 강유전층은 다결정일 수 있다.  비정질 차단층(72)은 Ti 3 Al과 같은 금속간 합금, Pd-Si와 같은 금속-메탈로이드, Ti-Ni와 같은 초기 및 후기 전이 금속의 조성물, 및 비정질 금속을 형성하는 (Ti, Zr)-Be와 같은 관련된 다른 혼합물 금속계로 구성될 수 있다.
Patent KR-20020016778-A (KR)
IPC: H02K41/025
Filed: 2000-05-05
Abstract: 본 발명은 스위치장치의 구동을 위한 관상유도모터로 구성되어 있는 컨베이어트랙을 위한 컨베이어 스위치에 관한 것이다.  스위치부재는 컨베이어트랙상의 제 1과 제 2 사이에 피봇되고, 그곳에서 신장하는 구동아암을 갖는다. 스위치 가동은 스이치 부재의 가동을 위해 구동아암에 적절히 연결되어 있으며, 컨베이어 트랙상에 제 1 과 제 2의 경로 사이에서 선형운동을 한다. 스위치 부재의 이동과 관련하여 스위치 구동의 선형 운동을 설명하는 방법은 여러가지가 있다. 스위치 어셈블리는 특히 파워상의 스위치 및 컨베이어 시스템에 채택하고 있다.
Patent KR-20020033108-A (KR)
IPC: H04N5/781
Filed: 2000-06-23
Abstract: 본 발명은 데이터 흐름을 유지시키는 방식으로 소정의 기록-시간 에러에 응답함으로써 오디오-비주얼 데이터 저장 및 검색을 위한 디스크 드라이브를 최적화하기 위한 장치 및 방법에 관한 것이다.  서보 버스트로부터 얻어진 정보가 디스크 드라이브 헤드가 오프 코스이거나 오프 코스로의 진행이 예상되는 것을 나타내는 기록-시간 오류에 응답하여, 디스크 드라이브는 섹터가 제대로 기록되지 않은 채로 남지 않도록 하기 위해 섹터에 기록하는 마지막 순간과 동시에 디스크에 기록하는 것을 중단함으로써 응답한다.  이어 디스크 드라이브는 호스트에 부적절하게 기록되거나 기록되지 않은 섹터의 섹터 번호를 전달한다.  디스크 드라이브는 서보 섹터가 헤드가 트랙 상에 충분히 다시 중심을 두었음을 나타내자마자 다음 섹터에서 디스크에 기록을 계속하려고 한다.  더욱이, 만일 서보 데이터가 헤드가 현재의 서보와 앞선 서보 버스트 사이에서 제대로 중심을 두지 않았다고 나타낸 경우, 서보 버스트 사이의 섹터는 호스트에 나타날 것이다.
Patent KR-20020016859-A (KR)
IPC: H01B11/02
Filed: 2000-06-14
Abstract: 본 발명은 적어도 네개의 묶인 측방향의 차폐 연선 케이블(20,25,30)을 수용하는 고성능 데이터 케이블(10a 및 10b)을 갖는 고성능의 묶인 측방향의 차폐 연선 케이블(20,25,30)과 그 제조 방법에 관한 것이다.  묶인 측방향의 차폐 연선 케이블(20,25,30)은 양호하게는 20℃로 맞추어지고, 표준 임피던스 편차가 4.5 이하이며 적어도 네개의 묶인 측방향의 차폐 연선 케이블(10)을 수용한다.  연선은 단면적에서 25% 미만의 기공, 양호하게는 차폐 연선 케이블(shielded twisted pair cable)의 단면적의 18% 미만을 제공하는 장력으로 금속 차폐 테이프(16)와 하나의 직물, 금속 브레이드 또는 실(18)로 측방향으로 감싸여진다. 이 테이프(16)는 적어도 10%의 오버랩으로 측방향으로 감겨진다.  양호하게는, 케이블(20,25,30)은 600MHz와 1000MHz까지의 레이팅을 가진다.  본 출원인은 비불소화 자켓(19)과, 이 자켓(19) 및 케이블 코어 사이에서 내열성 및 내화성 세퍼레이터 테이프(27)를 갖는 UL 910 플리넘의 적어도 카테고리 5의 고성능 데이터 케이블(20,25,30)을 제공한다.
Patent KR-20030060471-A (KR)
Title: Method and apparatus for removing tape cover for manufacturing semiconductor package
Inventor: JI JE YEON
IPC: H01L21/60
Filed: 2002-01-09
Abstract: PURPOSE: An apparatus and a method of detaching a tape cover for semiconductor package are provided to detach a protective cover without a damage of a foil circuit pattern formed on a film type lead frame by adhering previously a detachable tape to the protective cover. CONSTITUTION: An apparatus of detaching a tape cover for semiconductor package includes a detachable tape supply reel, a pressing roller(17), a collection reel, and a fixing tool(16). The detachable tape supply reel is used for supply a detachable tape. The pressing roller is used for adhering closely the detachable tape to a protective cover(13) of a both-sided tape(12) adhered on a film type lead frame(11). The collection reel is used for collecting the detachable tape adhered on the protective cover. The fixing tool is used for fixing the film type lead frame during a working time.
Patent KR-20030060568-A (KR)
Inventor: KIM NAK SUNG
IPC: B60C23/02
Filed: 2002-01-09
Abstract: PURPOSE: An air leak alarm apparatus for a wheel of a vehicle and a tube floating method are provided to stop the vehicle safely by turning a warning light on and sounding an alarm in leaking pneumatic pressure of the tire, and to prevent accidents by restricting breakage of the tire and the rim with charging air into the tube at puncture of the tire. CONSTITUTION: A tube(1) is embedded in a tire, and first pneumatic pressure less than the proper pressure of the tire is charged in the tube. Second pneumatic pressure is charged in the tube through a rim valve(4) for floating the tube. The pressure of the tire is substituted with the pneumatic pressure of the tube in leaking air. A cable is connected to a contact rod by moving a piston forward with a spring in leaking air, and a signal is transmitted from a wireless transmitter(9) to a wireless receiver. Accidents are prevented by turning on the warning lamp and sounding the alarm in leaking air of the tire.
Patent KR-20020061169-A (KR)
Title: Easily openable disposable container, and sealing die therefor
Inventor: HOSHINO TAKAHIRO
IPC: B65D81/32
Filed: 2002-01-15
Abstract: PURPOSE: An easily openable disposable container for filling and sealing a liquid or paste-like content and a sealing die therefor are provided, to form an open part in a part of the sealed part with the seal of the sealed part peeled off for pressing out the content to the outside of the container by pressuring the container with the palms or fingers. CONSTITUTION: The easily openable disposable container(1) includes a sheet such as a synthetic resin film or a film-like sheet with an aluminum foil laminated on the film for sealing the substance to be stored by sealing the entirety or a part of the periphery with a content such as a liquid or a particle, with an easily openable part formed in a part of the sealed part. The sealing of the easily openable part is formed in a width narrower than the sealing width in the other part of the sealed part, and a narrow width vertical sealing is formed continuously from the narrow width sealed part, elongating in the direction substantially orthogonal thereto into the inside of the container such that the sealing of the easily openable part forms a substantially T shape or a substantially V shape in a plan view.
Patent KR-20030065662-A (KR)
Title: the interleaver and the method thereof in HDR transmitter
Inventor: HONG YUN GI
IPC: H04B10/00
Filed: 2002-01-30
Abstract: PURPOSE: An interleaver for an HDR(High Date Rate) transmission apparatus and an interleaving method therefor are provided to effectively perform interleaving without using an additional memory for the interleaving. CONSTITUTION: An interleaver memory(110) receives scrambled data, and successively stores the scrambled data, for interleaving. According to the request from a modulator(40), an address generating unit(120) generates an address in which corresponding data are stored by an interleaving rule, for corresponding to a read signal of the modulator(40) and successively outputting the data stored in the interleaver memory(110) in an interleaved sequence.
Patent KR-20030067379-A (KR)
Title: Method for planation ild of semiconductor
Inventor: KIM JAE YEONG
IPC: H01L21/31
Filed: 2002-02-08
Abstract: PURPOSE: A method for planarizing an interlayer dielectric of a semiconductor device is provided to sufficiently planarize the interlayer dielectric and prevent a reflow phenomenon occurring from a subsequent heat treatment process by performing a heat treatment process after a boron phosphorous silicate glass(BPSG) layer is deposited wherein the density of impurities becomes lower as it goes from the lower portion of the BPSG layer to the upper portion of the BPSG layer. CONSTITUTION: After a gate electrode(11) is formed on a semiconductor substrate(10), the first interlayer dielectric is deposited on the gate electrode. After the interlayer dielectric is etched to form a contact hole in an active region, polysilicon is deposited. The first interlayer dielectric is planarized. The density of impurities is controlled to become lower as it goes from the lower portion of the BPSG layer to the upper portion of the BPSG layer. After the second interlayer dielectric(18) is formed on the first interlayer dielectric, a heat treatment process is performed for sufficient planarization.
Patent KR-20020068461-A (KR)
Title: Process for the manufacture of a vitamin e intermediate
Inventor: BONRATH WERNER
IPC: C12P17/06
Filed: 2002-02-20
Abstract: PURPOSE: Provided is a process for the manufacture of trimethylhydroquinone-1-monoacetate from trimethylhydroquinone diacetate by a selective enzymatic monosaponification using a lipase. CONSTITUTION: The process for effecting a highly selective conversion of trimethylhydroquinone diacetate into trimethylhydroquinone-1-monoacetate characteristically comprises subjecting the trimethylhydroquinone diacetate to an enzymatic monosaponification by means of a lipase, wherein the lipase is immobilized on a solid carrier material; the enzymatic monosaponification is carried out in a hydrophobic solvent; and the reactions are carried out under pressure. The lipase is Pseudomonas spec, lipase, in particular Pseudomonas fluorescens lipase, or Thermomyces lanuginosus lipase.