DE3679444D1 - Akustische oberflaechenwellenanordnung mit widerstandsschichten. - Google Patents

Akustische oberflaechenwellenanordnung mit widerstandsschichten.

Info

Publication number
DE3679444D1
DE3679444D1 DE8686301324T DE3679444T DE3679444D1 DE 3679444 D1 DE3679444 D1 DE 3679444D1 DE 8686301324 T DE8686301324 T DE 8686301324T DE 3679444 T DE3679444 T DE 3679444T DE 3679444 D1 DE3679444 D1 DE 3679444D1
Authority
DE
Germany
Prior art keywords
idt
substrate
surface wave
acoustic surface
resistant layers
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8686301324T
Other languages
English (en)
Inventor
Grantley Oliver Este
Mark Spencer Suthers
Richard William Streater
Blair Kenneth Maclaurin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of DE3679444D1 publication Critical patent/DE3679444D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Hall/Mr Elements (AREA)
  • Bipolar Transistors (AREA)
DE8686301324T 1985-03-29 1986-02-24 Akustische oberflaechenwellenanordnung mit widerstandsschichten. Expired - Fee Related DE3679444D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000477949A CA1252557A (en) 1985-03-29 1985-03-29 Saw devices including resistive films

Publications (1)

Publication Number Publication Date
DE3679444D1 true DE3679444D1 (de) 1991-07-04

Family

ID=4130153

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686301324T Expired - Fee Related DE3679444D1 (de) 1985-03-29 1986-02-24 Akustische oberflaechenwellenanordnung mit widerstandsschichten.

Country Status (6)

Country Link
EP (1) EP0200304B1 (de)
JP (1) JPS61228713A (de)
AT (1) ATE64042T1 (de)
AU (1) AU585317B2 (de)
CA (1) CA1252557A (de)
DE (1) DE3679444D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1254994A (en) * 1985-03-29 1989-05-30 Mark S. Suthers Saw devices with reflection-suppressing fingers
US4931752A (en) * 1987-09-30 1990-06-05 Hewlett-Packard Company Polyimide damper for surface acoustic wave device
JP2607677Y2 (ja) * 1991-12-19 2002-03-04 日本無線株式会社 弾性表面波装置
TW330341B (en) * 1996-01-19 1998-04-21 Murada Seisakusho Kk Metallic thin film and method of manufacturing the same and surface acoustic wave device using the metallic thin film and the same thereof
KR100713966B1 (ko) * 1997-07-28 2007-05-02 가부시끼가이샤 도시바 탄성표면파 장치 및 그의 제조방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128474A (ja) * 1974-09-03 1976-03-10 Matsushita Electric Ind Co Ltd Isoseigyosochi
US3978436A (en) * 1975-11-10 1976-08-31 Rca Corporation Surface acoustic wave device and method of making same
US4322651A (en) * 1977-05-09 1982-03-30 Murata Manufacturing Co., Ltd. Acoustic surface wave device
JPS548974A (en) * 1977-06-23 1979-01-23 Mitsubishi Electric Corp Manufacture of semiconductor device
JPS56116317A (en) * 1980-02-19 1981-09-12 Matsushita Electric Ind Co Ltd Material for elastic surface wave
US4472694A (en) * 1982-09-07 1984-09-18 Gte Laboratories Incorporated Acoustic surface wave device
JPS5955615A (ja) * 1982-09-24 1984-03-30 Hitachi Ltd 弾性表面波装置およびその製造方法

Also Published As

Publication number Publication date
EP0200304B1 (de) 1991-05-29
JPS61228713A (ja) 1986-10-11
AU585317B2 (en) 1989-06-15
ATE64042T1 (de) 1991-06-15
CA1252557A (en) 1989-04-11
EP0200304A3 (en) 1987-12-23
AU5444086A (en) 1986-10-02
EP0200304A2 (de) 1986-11-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee