ATE479230T1 - Baw filter mit verschiedenen mittenfrequenzen auf einem einzelnen substrat und entsprechende herstellungsmethode - Google Patents

Baw filter mit verschiedenen mittenfrequenzen auf einem einzelnen substrat und entsprechende herstellungsmethode

Info

Publication number
ATE479230T1
ATE479230T1 AT01310920T AT01310920T ATE479230T1 AT E479230 T1 ATE479230 T1 AT E479230T1 AT 01310920 T AT01310920 T AT 01310920T AT 01310920 T AT01310920 T AT 01310920T AT E479230 T1 ATE479230 T1 AT E479230T1
Authority
AT
Austria
Prior art keywords
depositing
piezolayer
bottom electrode
substrate
resonators
Prior art date
Application number
AT01310920T
Other languages
English (en)
Inventor
Juha Ella
Helena Pohjonen
Original Assignee
Avago Technologies Wireless Ip
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 Avago Technologies Wireless Ip filed Critical Avago Technologies Wireless Ip
Application granted granted Critical
Publication of ATE479230T1 publication Critical patent/ATE479230T1/de

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58Multiple crystal filters
    • H03H9/582Multiple crystal filters implemented with thin-film techniques
    • H03H9/586Means for mounting to a substrate, i.e. means constituting the material interface confining the waves to a volume
    • H03H9/589Acoustic mirrors
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02Apparatus 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 piezoelectric or electrostrictive resonators or networks
    • H03H3/04Apparatus 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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02Apparatus 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 piezoelectric or electrostrictive resonators or networks
    • H03H3/04Apparatus 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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H03H2003/0414Resonance frequency
    • H03H2003/0421Modification of the thickness of an element
    • H03H2003/0428Modification of the thickness of an element of an electrode
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02Apparatus 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 piezoelectric or electrostrictive resonators or networks
    • H03H3/04Apparatus 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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H03H2003/0414Resonance frequency
    • H03H2003/0421Modification of the thickness of an element
    • H03H2003/0435Modification of the thickness of an element of a piezoelectric layer
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02Apparatus 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 piezoelectric or electrostrictive resonators or networks
    • H03H3/04Apparatus 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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H03H2003/0414Resonance frequency
    • H03H2003/0471Resonance frequency of a plurality of resonators at different frequencies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/42Piezoelectric device making

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
AT01310920T 2001-01-05 2001-12-28 Baw filter mit verschiedenen mittenfrequenzen auf einem einzelnen substrat und entsprechende herstellungsmethode ATE479230T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/755,007 US6518860B2 (en) 2001-01-05 2001-01-05 BAW filters having different center frequencies on a single substrate and a method for providing same

Publications (1)

Publication Number Publication Date
ATE479230T1 true ATE479230T1 (de) 2010-09-15

Family

ID=25037310

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01310920T ATE479230T1 (de) 2001-01-05 2001-12-28 Baw filter mit verschiedenen mittenfrequenzen auf einem einzelnen substrat und entsprechende herstellungsmethode

Country Status (5)

Country Link
US (1) US6518860B2 (de)
EP (1) EP1221770B1 (de)
JP (1) JP4426748B2 (de)
AT (1) ATE479230T1 (de)
DE (1) DE60142884D1 (de)

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Also Published As

Publication number Publication date
JP4426748B2 (ja) 2010-03-03
US20020089395A1 (en) 2002-07-11
US6518860B2 (en) 2003-02-11
DE60142884D1 (de) 2010-10-07
EP1221770B1 (de) 2010-08-25
JP2002268645A (ja) 2002-09-20
EP1221770A1 (de) 2002-07-10

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