KR940001545A - Sound absorbing material coating method of surface acoustic wave filter - Google Patents

Sound absorbing material coating method of surface acoustic wave filter Download PDF

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Publication number
KR940001545A
KR940001545A KR1019920009821A KR920009821A KR940001545A KR 940001545 A KR940001545 A KR 940001545A KR 1019920009821 A KR1019920009821 A KR 1019920009821A KR 920009821 A KR920009821 A KR 920009821A KR 940001545 A KR940001545 A KR 940001545A
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KR
South Korea
Prior art keywords
absorbing material
sound absorbing
coating method
material coating
acoustic wave
Prior art date
Application number
KR1019920009821A
Other languages
Korean (ko)
Other versions
KR950002962B1 (en
Inventor
김재명
김재춘
Original Assignee
황선두
삼성전기주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 황선두, 삼성전기주식회사 filed Critical 황선두
Priority to KR1019920009821A priority Critical patent/KR950002962B1/en
Publication of KR940001545A publication Critical patent/KR940001545A/en
Application granted granted Critical
Publication of KR950002962B1 publication Critical patent/KR950002962B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/08—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of resonators or networks using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/25—Constructional features of resonators using surface acoustic waves

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

SAW 필터의 반사파를 제거하기 위하여, 입,출력 변환기가 형성된 압전기판의 양 단부에 형성되는 흡음재 도포방법에 있어서, 소정 형상의 흡음재 패턴이 새겨진 스크린 마스크 위에서 에폭시를 분부시켜 압전기판 상부에 소정형상의 흡음재를 형성하는 본 발명은, 종래의 스퀴지를 이용한 인쇄방법에 비항, 수율 향상 및 제조 원가절감하에 크게 기여할 수 있다.In the sound absorbing material coating method formed on both ends of the piezoelectric plate formed with the input and output transducers to remove the reflected wave of the SAW filter, epoxy is applied on the screen mask engraved with the sound absorbing material pattern of a predetermined shape to have a predetermined shape on the piezoelectric plate. The present invention for forming a sound absorbing material can greatly contribute to the non-stop, yield improvement and manufacturing cost reduction in the conventional printing method using a squeegee.

Description

표면 탄성파 필터의 흡음재 도포방법Sound absorbing material coating method of surface acoustic wave filter

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

제2도는 본 발명에 따른 흡음재 도포방법을 설명하기 위한 설명도이다.2 is an explanatory diagram for explaining the sound absorbing material coating method according to the present invention.

Claims (2)

번짐 방지를 위해 웨이퍼를 핫-플레이트에 을려 놓는 단계, 상기 웨이퍼의 상부에 소정 형상의 흡음재 패턴이 새겨진 스크린 마스크를 소정 간격을 두고 이격되도록 설치하는 단계, 및 상기 스크린 마스크 위에서 에폭시를 분무시켜 웨이퍼 상부에 흡음재를 도포하는 단계로 이루어진 표면 탄성파 필터의 흡음재 도포방법.Placing the wafer on a hot-plate to prevent bleeding, installing a screen mask engraved with a sound absorbing material pattern having a predetermined shape on the wafer so as to be spaced at a predetermined interval, and spraying epoxy on the screen mask to form an upper portion of the wafer The sound absorbing material coating method of the surface acoustic wave filter consisting of applying a sound absorbing material to the. 제1항에 있어서, 상기 스크린 마스크 위에서 분무되는 에폭시가 도장용 페인트 또는 루버(rubber)실리콘으로 된 것을 특징으로 하는 흡음재 도포방법.The method of claim 1, wherein the epoxy sprayed on the screen mask is made of paint or rubber silicone. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920009821A 1992-06-05 1992-06-05 Saw filter KR950002962B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920009821A KR950002962B1 (en) 1992-06-05 1992-06-05 Saw filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920009821A KR950002962B1 (en) 1992-06-05 1992-06-05 Saw filter

Publications (2)

Publication Number Publication Date
KR940001545A true KR940001545A (en) 1994-01-11
KR950002962B1 KR950002962B1 (en) 1995-03-28

Family

ID=19334275

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920009821A KR950002962B1 (en) 1992-06-05 1992-06-05 Saw filter

Country Status (1)

Country Link
KR (1) KR950002962B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100887710B1 (en) * 2008-10-30 2009-03-11 남궁영 The aluminum tube and process for producing same

Also Published As

Publication number Publication date
KR950002962B1 (en) 1995-03-28

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