KR20080034790A - 래더형 필터 - Google Patents
래더형 필터 Download PDFInfo
- Publication number
- KR20080034790A KR20080034790A KR1020070103934A KR20070103934A KR20080034790A KR 20080034790 A KR20080034790 A KR 20080034790A KR 1020070103934 A KR1020070103934 A KR 1020070103934A KR 20070103934 A KR20070103934 A KR 20070103934A KR 20080034790 A KR20080034790 A KR 20080034790A
- Authority
- KR
- South Korea
- Prior art keywords
- film
- resonator
- upper electrode
- lower electrode
- parallel resonator
- Prior art date
Links
- 239000012212 insulator Substances 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 28
- 239000011651 chromium Substances 0.000 claims description 12
- 239000010936 titanium Substances 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 9
- 230000008961 swelling Effects 0.000 claims description 8
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical group Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 238000003475 lamination Methods 0.000 abstract description 7
- 239000010408 film Substances 0.000 description 227
- 238000005530 etching Methods 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 239000011800 void material Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 239000012528 membrane Substances 0.000 description 8
- 238000004544 sputter deposition Methods 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 238000007687 exposure technique Methods 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000006829 Ficus sundaica Species 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/205—Constructional features of resonators consisting of piezoelectric or electrostrictive material having multiple resonators
-
- 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
- H03H3/02—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 piezoelectric or electrostrictive resonators or networks
- H03H3/04—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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/0211—Means for compensation or elimination of undesirable effects of reflections
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02118—Means for compensation or elimination of undesirable effects of lateral leakage between adjacent resonators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02133—Means for compensation or elimination of undesirable effects of stress
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02149—Means for compensation or elimination of undesirable effects of ageing changes of characteristics, e.g. electro-acousto-migration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
- H03H9/131—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials consisting of a multilayered structure
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
- H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/173—Air-gaps
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/174—Membranes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/566—Electric coupling means therefor
- H03H9/568—Electric coupling means therefor consisting of a ladder configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/582—Multiple crystal filters implemented with thin-film techniques
- H03H9/586—Means for mounting to a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/587—Air-gaps
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/582—Multiple crystal filters implemented with thin-film techniques
- H03H9/586—Means for mounting to a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/588—Membranes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/60—Electric coupling means therefor
- H03H9/605—Electric coupling means therefor consisting of a ladder configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6483—Ladder SAW filters
-
- 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
- H03H3/02—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 piezoelectric or electrostrictive resonators or networks
- H03H2003/021—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 piezoelectric or electrostrictive resonators or networks the resonators or networks being of the air-gap type
-
- 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
- H03H3/02—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 piezoelectric or electrostrictive resonators or networks
- H03H2003/023—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 piezoelectric or electrostrictive resonators or networks the resonators or networks being of the membrane type
-
- 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
- H03H3/02—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 piezoelectric or electrostrictive resonators or networks
- H03H3/04—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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
- H03H2003/0414—Resonance frequency
-
- 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
- H03H3/02—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 piezoelectric or electrostrictive resonators or networks
- H03H3/04—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 piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
- H03H2003/0414—Resonance frequency
- H03H2003/0471—Resonance frequency of a plurality of resonators at different frequencies
-
- 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
-
- 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
- H03H3/0072—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks of microelectro-mechanical resonators or networks
- H03H3/0073—Integration with other electronic structures
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/178—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator of a laminated structure of multiple piezoelectric layers with inner electrodes
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49005—Acoustic transducer
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49224—Contact or terminal manufacturing with coating
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
Claims (14)
- 압전막을 사이에 두고 하부 전극과 상부 전극이 대향하도록 형성된 적층막과, 그 적층막 상에 접하여 형성된 제1 막을 갖는 직렬 공진기와,상기 압전막을 사이에 두고 상기 하부 전극과 상기 상부 전극이 대향하도록 형성된 상기 적층막과, 상기 적층막 상에 접하여 형성된 제2 막과, 그 제2 막 상에 접하여 형성된 제1 막을 갖는 병렬 공진기를 구비하는 것을 특징으로 하는 래더형 필터.
- 제1항에 있어서,상기 제2 막은 도전체막인 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 직렬 공진기 및 상기 병렬 공진기의 상기 제1 막 상에 접하여 형성된 제3 막을 구비하는 것을 특징으로 하는 래더형 필터.
- 제3항에 있어서,상기 제3 막은 절연체막인 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 병렬 공진기에서, 상기 제2 막이 형성된 영역은 상기 하부 전극과 상기 상부 전극이 대향하는 영역을 포함하는 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 직렬 공진기 상의 상기 제1 막과 상기 병렬 공진기 상의 상기 제1 막은 동일한 막 두께를 갖는 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 상부 전극은 루테늄막이고, 상기 제1 막은 크롬막이며, 상기 제2 막은 티탄막인 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 하부 전극과 상기 상부 전극이 대향하는 영역은 타원형인 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 하부 전극과 상기 상부 전극이 대향하는 영역은 비평행으로 이루어지는 다각형인 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 하부 전극과 상기 상부 전극이 대향하는 영역의 상기 하부 전극은, 기판에 형성된 공극 상 또는 기판 상에 공극을 경유하여 형성되어 있는 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 적층막은 기판과의 사이에 돔 형상의 부풀어 오름을 갖는 공극이 형성되도록 형성되어 있는 것을 특징으로 하는 래더형 필터.
- 제10항에 있어서,상기 하부 전극과 상기 상부 전극이 대향하는 영역은 상기 공극에 포함되는 것을 특징으로 하는 래더형 필터.
- 제11항에 있어서,상기 적층막은 압축 응력인 것을 특징으로 하는 래더형 필터.
- 제1항 또는 제2항에 있어서,상기 압전막은, (002) 방향을 주축으로 하는 배향성을 나타내는 질화 알루미늄 또는 산화 아연인 것을 특징으로 하는 래더형 필터.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006282290A JP4968900B2 (ja) | 2006-10-17 | 2006-10-17 | ラダー型フィルタの製造方法 |
JPJP-P-2006-00282290 | 2006-10-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080034790A true KR20080034790A (ko) | 2008-04-22 |
KR100906551B1 KR100906551B1 (ko) | 2009-07-07 |
Family
ID=38871740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070103934A KR100906551B1 (ko) | 2006-10-17 | 2007-10-16 | 래더형 필터의 제조 방법 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20080129417A1 (ko) |
EP (1) | EP1914888B1 (ko) |
JP (1) | JP4968900B2 (ko) |
KR (1) | KR100906551B1 (ko) |
CN (1) | CN101166020A (ko) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4252584B2 (ja) * | 2006-04-28 | 2009-04-08 | 富士通メディアデバイス株式会社 | 圧電薄膜共振器およびフィルタ |
JP5207902B2 (ja) * | 2008-09-29 | 2013-06-12 | 京セラ株式会社 | バルク音響波共振子および電子部品 |
US9520856B2 (en) | 2009-06-24 | 2016-12-13 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator structure having an electrode with a cantilevered portion |
US8902023B2 (en) * | 2009-06-24 | 2014-12-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic resonator structure having an electrode with a cantilevered portion |
US9673778B2 (en) | 2009-06-24 | 2017-06-06 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Solid mount bulk acoustic wave resonator structure comprising a bridge |
US8248185B2 (en) | 2009-06-24 | 2012-08-21 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Acoustic resonator structure comprising a bridge |
US10461719B2 (en) * | 2009-06-24 | 2019-10-29 | Avago Technologies International Sales Pte. Limited | Acoustic resonator structure having an electrode with a cantilevered portion |
JP5319491B2 (ja) | 2009-10-22 | 2013-10-16 | 太陽誘電株式会社 | 圧電薄膜共振子 |
US9450561B2 (en) | 2009-11-25 | 2016-09-20 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic wave (BAW) resonator structure having an electrode with a cantilevered portion and a piezoelectric layer with varying amounts of dopant |
US9219464B2 (en) | 2009-11-25 | 2015-12-22 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic wave (BAW) resonator structure having an electrode with a cantilevered portion and a piezoelectric layer with multiple dopants |
US8384497B2 (en) * | 2009-12-18 | 2013-02-26 | Hao Zhang | Piezoelectric resonator structure having an interference structure |
JP2011160232A (ja) * | 2010-02-01 | 2011-08-18 | Ube Industries Ltd | 薄膜圧電共振器およびそれを用いた薄膜圧電フィルタ |
WO2011099381A1 (ja) * | 2010-02-09 | 2011-08-18 | 株式会社村田製作所 | 圧電デバイス、圧電デバイスの製造方法 |
JP5390431B2 (ja) * | 2010-02-24 | 2014-01-15 | 太陽誘電株式会社 | 弾性波デバイス |
US9136818B2 (en) | 2011-02-28 | 2015-09-15 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Stacked acoustic resonator comprising a bridge |
US9203374B2 (en) | 2011-02-28 | 2015-12-01 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Film bulk acoustic resonator comprising a bridge |
US9148117B2 (en) | 2011-02-28 | 2015-09-29 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Coupled resonator filter comprising a bridge and frame elements |
US9099983B2 (en) | 2011-02-28 | 2015-08-04 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic wave resonator device comprising a bridge in an acoustic reflector |
US9425764B2 (en) | 2012-10-25 | 2016-08-23 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Accoustic resonator having composite electrodes with integrated lateral features |
US9444426B2 (en) | 2012-10-25 | 2016-09-13 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Accoustic resonator having integrated lateral feature and temperature compensation feature |
WO2012176455A1 (ja) * | 2011-06-23 | 2012-12-27 | パナソニック株式会社 | ラダー型弾性波フィルタ及びこれを用いたアンテナ共用器 |
JP5792554B2 (ja) | 2011-08-09 | 2015-10-14 | 太陽誘電株式会社 | 弾性波デバイス |
JP5815329B2 (ja) | 2011-08-22 | 2015-11-17 | 太陽誘電株式会社 | 弾性波デバイス |
US9608592B2 (en) | 2014-01-21 | 2017-03-28 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Film bulk acoustic wave resonator (FBAR) having stress-relief |
JP6175743B2 (ja) | 2012-06-06 | 2017-08-09 | セイコーエプソン株式会社 | 振動素子の製造方法 |
JP6185292B2 (ja) * | 2013-06-10 | 2017-08-23 | 太陽誘電株式会社 | 弾性波デバイス |
JP5681303B2 (ja) * | 2014-01-07 | 2015-03-04 | 太陽誘電株式会社 | 弾性波デバイス |
KR101942731B1 (ko) * | 2017-04-10 | 2019-01-28 | 삼성전기 주식회사 | 필터 및 필터 모듈 |
JP6925877B2 (ja) * | 2017-06-07 | 2021-08-25 | 太陽誘電株式会社 | 弾性波デバイス |
KR102149386B1 (ko) * | 2019-04-16 | 2020-08-28 | 삼성전기주식회사 | 음향 공진기 및 음향 공진기 필터 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5910756A (en) * | 1997-05-21 | 1999-06-08 | Nokia Mobile Phones Limited | Filters and duplexers utilizing thin film stacked crystal filter structures and thin film bulk acoustic wave resonators |
US6518860B2 (en) * | 2001-01-05 | 2003-02-11 | Nokia Mobile Phones Ltd | BAW filters having different center frequencies on a single substrate and a method for providing same |
US6407649B1 (en) * | 2001-01-05 | 2002-06-18 | Nokia Corporation | Monolithic FBAR duplexer and method of making the same |
JP3954395B2 (ja) * | 2001-10-26 | 2007-08-08 | 富士通株式会社 | 圧電薄膜共振子、フィルタ、および圧電薄膜共振子の製造方法 |
US6670866B2 (en) * | 2002-01-09 | 2003-12-30 | Nokia Corporation | Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers |
JP4039322B2 (ja) * | 2002-07-23 | 2008-01-30 | 株式会社村田製作所 | 圧電フィルタ、デュプレクサ、複合圧電共振器および通信装置、並びに、圧電フィルタの周波数調整方法 |
KR100489828B1 (ko) * | 2003-04-07 | 2005-05-16 | 삼성전기주식회사 | Fbar 소자 및 그 제조방법 |
JP2005073175A (ja) * | 2003-08-27 | 2005-03-17 | Fujitsu Media Device Kk | 圧電薄膜共振子及びその製造方法 |
JP4488167B2 (ja) * | 2003-12-18 | 2010-06-23 | Tdk株式会社 | フィルタ |
US20050152110A1 (en) | 2004-01-13 | 2005-07-14 | Winston Chen | Portable raid device |
US6963257B2 (en) * | 2004-03-19 | 2005-11-08 | Nokia Corporation | Coupled BAW resonator based duplexers |
JP4223428B2 (ja) * | 2004-03-31 | 2009-02-12 | 富士通メディアデバイス株式会社 | フィルタおよびその製造方法 |
JP4149416B2 (ja) * | 2004-05-31 | 2008-09-10 | 富士通メディアデバイス株式会社 | 圧電薄膜共振子およびフィルタならびにそれらの製造方法 |
TW200610266A (en) * | 2004-06-03 | 2006-03-16 | Sony Corp | Thin film bulk acoustic resonator and method of manufacturing the same |
JP2006020277A (ja) * | 2004-06-03 | 2006-01-19 | Sony Corp | 薄膜バルク音響共振器及びその製造方法 |
US7554422B2 (en) * | 2004-09-10 | 2009-06-30 | Panasonic Corporation | Filter module using piezoelectric resonators, duplexer, communication device, and method for fabricating filter module |
JP4535841B2 (ja) * | 2004-10-28 | 2010-09-01 | 富士通メディアデバイス株式会社 | 圧電薄膜共振子及びこれを用いたフィルタ |
JP2006180304A (ja) * | 2004-12-24 | 2006-07-06 | Hitachi Media Electoronics Co Ltd | 圧電バルク共振子およびその製造方法、圧電バルク共振子を用いたフィルタ、それを用いた半導体集積回路装置、並びにそれを用いた高周波モジュール |
JP4149444B2 (ja) * | 2005-01-12 | 2008-09-10 | 富士通メディアデバイス株式会社 | 圧電薄膜共振子及びこれを用いたフィルタ |
JPWO2007004435A1 (ja) * | 2005-06-30 | 2009-01-22 | パナソニック株式会社 | 音響共振器及びフィルタ |
JP4707533B2 (ja) * | 2005-10-27 | 2011-06-22 | 太陽誘電株式会社 | 圧電薄膜共振器およびフィルタ |
FR2905207B1 (fr) * | 2006-08-28 | 2009-01-30 | St Microelectronics Sa | Filtre commutable a resonateurs. |
-
2006
- 2006-10-17 JP JP2006282290A patent/JP4968900B2/ja active Active
-
2007
- 2007-10-16 KR KR1020070103934A patent/KR100906551B1/ko active IP Right Grant
- 2007-10-16 EP EP07118583.9A patent/EP1914888B1/en not_active Expired - Fee Related
- 2007-10-16 US US11/907,704 patent/US20080129417A1/en not_active Abandoned
- 2007-10-17 CN CNA2007101819528A patent/CN101166020A/zh active Pending
-
2009
- 2009-12-28 US US12/647,794 patent/US8756777B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1914888A1 (en) | 2008-04-23 |
US20080129417A1 (en) | 2008-06-05 |
JP4968900B2 (ja) | 2012-07-04 |
US8756777B2 (en) | 2014-06-24 |
US20100096358A1 (en) | 2010-04-22 |
KR100906551B1 (ko) | 2009-07-07 |
CN101166020A (zh) | 2008-04-23 |
EP1914888B1 (en) | 2013-06-12 |
JP2008103798A (ja) | 2008-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100906551B1 (ko) | 래더형 필터의 제조 방법 | |
KR100950391B1 (ko) | 압전 박막 공진기 및 필터 | |
KR100865837B1 (ko) | 필터 | |
KR100841166B1 (ko) | 압전 박막 공진기 및 필터 | |
KR100771345B1 (ko) | 압전 박막 공진자 및 필터 | |
JP4223428B2 (ja) | フィルタおよびその製造方法 | |
JP5229945B2 (ja) | フィルタ、デュープレクサ、および通信装置 | |
JP4149444B2 (ja) | 圧電薄膜共振子及びこれを用いたフィルタ | |
JP5191762B2 (ja) | 圧電薄膜共振器、フィルタ、および通信装置 | |
KR100863871B1 (ko) | 필터 및 분파기 | |
JP2005073175A (ja) | 圧電薄膜共振子及びその製造方法 | |
JP2017225042A (ja) | 圧電薄膜共振器、フィルタおよびマルチプレクサ | |
WO2007119643A1 (ja) | 圧電薄膜共振子、圧電薄膜デバイスおよびその製造方法 | |
WO2011036979A1 (ja) | 弾性波デバイス | |
JP5750052B2 (ja) | 弾性波デバイス、フィルタ、通信モジュール、通信装置 | |
CN117526892A (zh) | 一种薄膜体声波谐振器及其制作方法和电子设备 | |
JP2008079328A (ja) | 圧電薄膜共振子及びその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E90F | Notification of reason for final refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130531 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20140603 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20150529 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20160527 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20180619 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20190619 Year of fee payment: 11 |