KR950015838A - Method for manufacturing high temperature superconducting bandpass filter for microwave - Google Patents

Method for manufacturing high temperature superconducting bandpass filter for microwave Download PDF

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Publication number
KR950015838A
KR950015838A KR1019930024332A KR930024332A KR950015838A KR 950015838 A KR950015838 A KR 950015838A KR 1019930024332 A KR1019930024332 A KR 1019930024332A KR 930024332 A KR930024332 A KR 930024332A KR 950015838 A KR950015838 A KR 950015838A
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South Korea
Prior art keywords
temperature superconducting
high temperature
thin film
substrate
forming
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KR1019930024332A
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Korean (ko)
Inventor
강광용
이종용
이상렬
윤철식
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양승택
재단법인 한국전자통신연구소
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Priority to KR1019930024332A priority Critical patent/KR950015838A/en
Priority to JP28096994A priority patent/JPH07202533A/en
Publication of KR950015838A publication Critical patent/KR950015838A/en

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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00Superconducting devices

Abstract

본 발명은 현재 사용되고 있는 소재와는 전혀 다른 고온초전도체를 이용하여 정보 통신용 수동소자, 특히 고주파 영역에서 성능이 매우 우수한 마이크로파 대역통과필터의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a microwave bandpass filter having excellent performance in information communication passive elements, particularly in the high frequency region, by using a high temperature superconductor that is completely different from the materials currently used.

고온초전도 에피텍셜박막을 준비하고 시뮬레이션으로 구한 최적의 회로패턴을 전사시킨 전자선 마스크를 이용한 포토리소 그래픽 공정과 혼합식각공정을 통해 YBa2Cu3O7-8/Mg0/Cr/Cu/Au구조의 고주파용 대역통과필터를 제조한다.The YBa 2 Cu 3 O 7-8 / Mg0 / Cr / Cu / Au structure was prepared through the photolithographic process and the mixed etching process using the electron beam mask, which prepared the high-temperature superconducting epitaxial thin film and transferred the optimal circuit pattern obtained by simulation. A high pass band pass filter is manufactured.

본 발명에 따라 제조된 마이크로파소자의 고주파 특성측정을 통해 고온초전도체의 고주과 응용가능성을 확인하고, 저온(77K근방)에서는 기존의 금속박막형 고주파 수동소자보다 성능이 우수함을 보인다.The high frequency characteristics measurement of the microwave device manufactured according to the present invention confirms the applicability and applicability of the high temperature superconductor, and shows that the performance is superior to the existing metal thin film type high frequency passive device at low temperature (near 77K).

고온초전도 박막의 제조에서 부터 대역통과필터를 구현하기까지는 복잡하고 다양한 소자제조 공정들을 거치게 되지만, 이러한 공정들을 통하여 기판위에 형성시킬 회로패턴의 정밀도 및 예리도를 훨씬 높일 수 있게 된다.From the manufacture of high-temperature superconducting thin film to the implementation of the band pass filter, a complicated and various device manufacturing process is required. However, these processes can increase the accuracy and sharpness of the circuit pattern to be formed on the substrate.

Description

마이크로파용 고온초전도 대역통과필터의 제조방법Method for manufacturing high temperature superconducting bandpass filter for microwave

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1도는 본 발명에 따른 고온초전도 대역통과필터로 회로패턴을 나타낸 것으로, (A)는 고온초전도 박막제조용 단결정기판(MgO)의 두께가 0.5mm인 경우는 회로패턴, (B)는 고온초전도 박막제조용 단결정기판(MgO)의 두께가 O.1mm인 경우의 회로 패턴.Figure 1 shows a circuit pattern with a high temperature superconducting bandpass filter according to the present invention, (A) is a circuit pattern when the thickness of the single crystal substrate (MgO) for manufacturing a high temperature superconducting thin film (MgO) is 0.5mm, (B) is a high temperature superconducting thin film Circuit pattern when the thickness of the manufacturing single crystal substrate (MgO) is 0.1 mm.

Claims (6)

고온초전도 전자소자의 제조방법에 있어서, MgO기판(2) 위에 펄스레이저증착(PLD)법으로 고온초전도 물질인 YBa2Cu3O7-8을 증착하여 고온초전도박막(5)을 형성하는 공정과, 전자선 마스크를 사용하고 포토리소그래피에 의해 회로패턴을 상기 고온초전도 박막(5)위에 포토레지스트를 도포하고 상기 전자선 마스크를 정렬한 후 자외선에 노출시키고 상기 포토레지스트를 현상한 후, 약 3분정도 하드베이킹 하는 공정과, ECR식각장비에 의해 약30분 동안 상기 고온초전도 박막(5)과 상기 포토레지스트를 밀링하여 대체적인 회로패턴을 형성시키는 공정과, 시료를 EDTA용액 속에 넣어 상기 회로패턴의 예리도를 높임과 동시에 남아 있는 상기 포토레지스트를 아세톤으로 완전히 제거한 후, 시료표면의 유기물이나 기타의 불순물들을 제거하기 위해 시료를 세정하는 공정과, 상기 고온초전도박막(4)의 증차시 상기 기판(2)의 고정을 위해 사용한 기판뒷면의 은 페이스트(Ag-paste)를 제거하고 접지평면을 형성하기 위해 상기 기판(2)의 뒷면을 폴리싱하는 공정과, 상기 기관(2)의 폴리싱된 뒷면에 상기 접지평면을 형성하는 공정과, 고주파하우징의 SMA형 컨넥터 핀과 결합선 (1)의 우수한 접촉 및 정합을 위해 상기 결합선의 가장자리에 새도마스크를 사용하여 Au를 증착하여 입출력단(3)을 형성하는 공정을 포함하는 것을 특징으로 하는 마이크로파용 고온초전도 대역통과필터의 제조방법.In the method of manufacturing a high temperature superconducting electronic device, a step of forming a high temperature superconducting thin film (5) by depositing YBa 2 Cu 3 O 7-8 which is a high temperature superconducting material on the MgO substrate (2) by the pulsed laser deposition (PLD) method; After applying the photoresist on the high temperature superconducting thin film (5) by using an electron beam mask and photolithography, applying a photoresist, aligning the electron beam mask, exposing it to ultraviolet rays, developing the photoresist, and then hardening it for about 3 minutes. Baking process, milling the high temperature superconducting thin film 5 and the photoresist for about 30 minutes by ECR etching equipment to form an alternative circuit pattern, and putting a sample into EDTA solution At the same time, the remaining photoresist is completely removed with acetone, and then the sample is cleaned to remove organic matter and other impurities from the sample surface. In order to remove the silver paste (Ag-paste) on the back of the substrate used for fixing the substrate (2) during the process and the addition of the high temperature superconducting thin film (4), the back surface of the substrate (2) is formed to form a ground plane. The process of polishing, forming the ground plane on the polished back surface of the engine (2), and the SMA connector pin of the high frequency housing and the edge of the bond line for good contact and matching of the bond line (1) A method of manufacturing a high temperature superconducting bandpass filter for microwaves, comprising the step of depositing Au using a mask to form an input / output end (3). 제1항에 있어서, 상기 MgO기판(2) 위에 상기 고온초전도박막(5)을 증착하기에 앞서 ECR식각장비에 의해 상기 MgO기판 (2)을 더욱 평활하게 밀링하여 표면처리 하는 공정을 부가적으로 포함하고, 상기 기판표면 처리공정은 약 1mA/㎤의 이온빔 전류로 약 10분 정도 처리하는 것을 특징으로 하는 마이크로파용 고온초전도 대역통과 필터의 제조방법.The method of claim 1, further comprising the step of further smoothly milling the surface of the MgO substrate (2) by ECR etching equipment prior to depositing the high temperature superconducting thin film (5) on the MgO substrate (2). And the substrate surface treatment process is performed for about 10 minutes with an ion beam current of about 1 mA / cm 3. 제1항에 있어서, 상기 접지평면 형성공정은 고주파특성이 우수하고 상피 고주파하우징의 바닥과의 우수한 정합을 얻기 위한 Au막 (8)을 형성하는 공정을 포함하는 것을 특징으로 하는 고주파용 고온초전도 대역통과 필터의 제조방법.2. The high-temperature superconducting band for high frequency according to claim 1, wherein the ground plane forming step includes a step of forming an Au film (8) having excellent high frequency characteristics and obtaining excellent matching with the bottom of the epithelial high frequency housing. Method of making a pass filter. 제3항에 있어서, 상기 접지평면형성공정은 저온고주파측정시의 열분산이 잘 이루어지도록 하기 위해 상기 Au막 (8)을 형성하기에 앞서 Cu막(7)을 소정의 두께로 형성하는 고정을 포함하는 것을 특징으로 하는 마이크로파용 고온초전도 대역통과필터의 제조방법.4. The ground plane forming process according to claim 3, wherein the ground plane forming step comprises fixing the Cu film 7 to a predetermined thickness prior to forming the Au film 8 so that heat dissipation at the low temperature and high frequency measurement is performed well. Method for producing a high temperature superconducting bandpass filter for microwaves, comprising: a. 제4항에 있어서, 상기 접지평면형성공정은 상기 MgO기판(2)과 상기 Cu(7)의 접촉을 좋게하고 상기 기판(2) 뒷면의 평활도를 높이기 위해 상기 Cu막(7)을 형성하기 앞서 Cr막(6)을 소정의 두께로 형성하는 공정을 포함하는 것을 특징으로 하는 마이크로파용 고온초전도 대역통과필터의 제조방법.5. The method of claim 4, wherein the ground plane forming process is performed prior to forming the Cu film (7) to improve the contact between the MgO substrate (2) and the Cu (7) and to increase the smoothness of the back surface of the substrate (2). A method of manufacturing a high temperature superconducting bandpass filter for microwaves, comprising the step of forming a Cr film (6) to a predetermined thickness. 제5항에 있어서, 상기 Cr막(6)과 상기 Cu(7) 및 상기 Au(8)을 각각 약 10nm, 약 l㎛, 약 200nm정도의 두께로 증착하는 것을 특징으로 하는 마이크로파용 고온초전도 대역통과필터의 제조방법The high temperature superconducting band for microwaves according to claim 5, characterized in that the Cr film (6), the Cu (7), and the Au (8) are deposited at a thickness of about 10 nm, about l mu m, and about 200 nm, respectively. Manufacturing method of through filter ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930024332A 1993-11-16 1993-11-16 Method for manufacturing high temperature superconducting bandpass filter for microwave KR950015838A (en)

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KR1019930024332A KR950015838A (en) 1993-11-16 1993-11-16 Method for manufacturing high temperature superconducting bandpass filter for microwave
JP28096994A JPH07202533A (en) 1993-11-16 1994-11-15 High-temperature superconducting microwave bandpass filter and its manufacture

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010104830A (en) * 2000-05-16 2001-11-28 김남영 Filter aplplication for slit discontinuity in CPW structure
KR100603700B1 (en) * 2002-12-03 2006-07-20 인터내셔널 비지네스 머신즈 코포레이션 Method to Enhance Resolution of a Chemically Amplified Photoresist

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010104830A (en) * 2000-05-16 2001-11-28 김남영 Filter aplplication for slit discontinuity in CPW structure
KR100603700B1 (en) * 2002-12-03 2006-07-20 인터내셔널 비지네스 머신즈 코포레이션 Method to Enhance Resolution of a Chemically Amplified Photoresist

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