WO2004014784A1 - マイクロマシンおよびその製造方法 - Google Patents
マイクロマシンおよびその製造方法 Download PDFInfo
- Publication number
- WO2004014784A1 WO2004014784A1 PCT/JP2003/010150 JP0310150W WO2004014784A1 WO 2004014784 A1 WO2004014784 A1 WO 2004014784A1 JP 0310150 W JP0310150 W JP 0310150W WO 2004014784 A1 WO2004014784 A1 WO 2004014784A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- insulating film
- output electrode
- hole pattern
- micromachine
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000011229 interlayer Substances 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 abstract 5
- 239000010408 film Substances 0.000 description 55
- 238000005530 etching Methods 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 229910052814 silicon oxide Inorganic materials 0.000 description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- 229920005591 polysilicon Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- H03H3/0072—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
- H03H3/0076—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 for obtaining desired frequency or temperature coefficients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
- H03H9/2405—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive of microelectro-mechanical resonators
- H03H9/2447—Beam resonators
- H03H9/2463—Clamped-clamped beam 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
- H03H9/46—Filters
- H03H9/462—Microelectro-mechanical filters
-
- 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
- H03H9/02244—Details of microelectro-mechanical resonators
- H03H2009/02488—Vibration modes
- H03H2009/02511—Vertical, i.e. perpendicular to the substrate plane
Definitions
- the present invention relates to a microphone ⁇ machine and a method of manufacturing the same, and more particularly, to a micromachine provided with a vibrator electrode so as to cross over an output electrode via a space and a method of manufacturing the same.
- microfabrication technology on substrates, micromachine technology for forming microstructures, electrodes for controlling the driving thereof, and semiconductor integrated circuits on substrates such as silicon substrates and glass substrates has attracted attention. .
- the micro-vibrator 100 is provided with a vibrator electrode 103 via a space A above an output electrode 102 a provided on the substrate 101. Become. One end of the transducer electrode 103 is connected to an input electrode 102 b formed of the same conductive layer as the output electrode 102 a, and a specific When a frequency voltage is applied, the beam (vibrating portion) 103 of the vibrator electrode 103 provided on the output electrode 102a via the space A vibrates at the natural vibration frequency.
- the capacitance of the capacitor formed by the space A between the output electrode 102a and the beam (vibrating part) 103a changes, and this is output from the output electrode 102a.
- the high-frequency filter consisting of the micro-vibrator 100 with such a configuration is compared with a high-frequency filter using surface acoustic waves (S AW) and thin-film elastic waves (F BAR) As a result, a high Q value can be realized.
- the manufacture of such a micro-vibrator is performed as follows. First, as shown in FIG. 9A, on a substrate 101 whose surface is covered with an insulating film, an output electrode 102 a made of polysilicon, an input electrode 102 b, and a support electrode 102 c To form In these electrodes 102a to 102c, an input electrode 102b and a support electrode 102c are arranged on both sides of the output electrode 102'a. Next, a sacrificial layer 105 made of silicon oxide is formed on the substrate 101 so as to cover these electrodes 102a to 102c.
- connection holes 105 b and 105 c reaching the input electrode 102 b and the support electrode 102 c are formed in the sacrificial layer 105.
- a polysilicon layer 106 is formed on the sacrificial layer 105 including the insides of the connection holes 105b and 105c.
- a band-shaped vibrator electrode 103 passing over the output electrode 102a is formed by pattern-etching the polysilicon layer 106.
- the polysilicon layer 1 is formed so that the connection holes 105 b and 105 c are completely covered. 06 Pattern etching is performed.
- the sacrificial layer 105 is selectively removed, and thus, as shown in FIGS. 9A to 9C, a gap between the output electrode 102 a and the vibrator electrode 103 is obtained.
- the space A is formed to complete the micro vibrator 100.
- FIG. 10 is a diagram showing the relationship between the length (beam length) L of the beam (vibrating portion) 103 a of the microvibrator 100 having the above-described configuration and the natural vibration frequency.
- the natural vibration frequency of the theory based on the following formula (1) (Theory) is proportional to (1 / L 2). Therefore, it is necessary to reduce the beam length L in order to achieve a higher frequency.
- the line width of the output electrode 102a is However, the beam length L cannot be shortened.
- an object of the present invention is to provide a micromachine having a vibrator electrode capable of further increasing the frequency by reducing the beam length, and a method for manufacturing the same. Disclosure of the invention
- the micromachine of the present invention for achieving such an object is provided with a vibrator electrode, and is characterized by the following configuration. That is, in the micromachine of the present invention, a hole pattern reaching the output electrode is formed in the interlayer insulating film covering the output electrode on the substrate. A band-shaped oscillator electrode is provided on the interlayer insulating film so as to cross the upper portion of the hole pattern as a space. '
- the micromachine is formed on an interlayer insulating film.
- a transducer electrode is disposed so as to cross the upper part of the hole pattern as a space. For this reason, the vibrator electrode portion crossing over the hole pattern becomes a beam (vibrating portion) of the vibrator electrode. Therefore, the length of the beam (vibrating part) is set by the size of the hole pattern without depending on the width of the output electrode, and a vibrator electrode having a beam (vibrating part) shorter than the width of the output electrode can be obtained. .
- the present invention is also a method for manufacturing a micromachine having the above-described configuration, and is characterized in that the method is performed in the following procedure.
- a pattern is formed on the top. Then, a space is provided between the output electrode and the vibrator electrode by selectively removing the sacrificial layer in the hole pattern.
- FIG. 1A to 1H are cross-sectional process diagrams illustrating the manufacturing method of the first embodiment.
- FIG. 2 is a plan view corresponding to FIG. 1F.
- FIG. 3 is a plan view corresponding to FIG. 1H.
- FIG. 4 is a plan view showing a modification of the first embodiment.
- FIG. 5A to 5C are cross-sectional process diagrams illustrating the manufacturing method of the second embodiment.
- FIG. 6 is a plan view corresponding to FIG. 5A.
- FIG. 7 is a plan view corresponding to FIG. 5C.
- FIG. 8 is a diagram showing a configuration of a conventional micromachine (micro vibrator).
- 9A to 9C are cross-sectional process views showing a conventional manufacturing method.
- FIG. 10 is a graph for explaining the problem of the conventional micromachine. BEST MODE FOR CARRYING OUT THE INVENTION
- FIGS. 1A to 1H are cross-sectional process diagrams showing the manufacturing method of the first embodiment
- FIGS. 2 and 3 are plan views for explaining the manufacturing method of the first embodiment.
- a method for manufacturing a micromachine in the first embodiment will be described with reference to FIGS. 1A to 1H correspond to the A-A cross section in the plan views of FIGS.
- a substrate 4 is formed by covering a semiconductor substrate 1 made of single crystal silicon or the like with an insulating layer 3. It is preferable that the outermost surface of the insulating layer 3 is made of a material having etching resistance to the etching removal of the sacrificial layer (for example, silicon oxide) performed later. Therefore, for example, an insulating layer 3 is formed by laminating a silicon nitride film 3b having the above-described etching resistance in this order via a silicon oxide film 3a for relaxing a stress between the semiconductor substrate 1 and the semiconductor substrate 1. I decided to.
- the first conductive layer forming the output electrode 7 is, for example, a silicon layer such as polysilicon containing phosphorus (P).
- the substrate 4 is covered with a first insulating film 9.
- the first insulating film 9 is formed on the substrate 4 to have a thickness larger than the thickness of the output electrode 7 so that the output electrode 7 is embedded, and the first insulating film 9 is formed until the output electrode 7 is exposed.
- the surface of the output electrode 7 is exposed from the first insulating film 9 by polishing the insulating film 9.
- the first insulating film 9 is made of, for example, silicon oxide.
- a second insulating film 11 made of an insulating material having etching resistance against etching removal of the sacrificial layer to be performed later is formed on the output electrode 7 and the first insulating film 9, a second insulating film 11 made of an insulating material having etching resistance against etching removal of the sacrificial layer to be performed later.
- the second insulating film 11 made of silicon nitride is formed on the output electrode 7 and the first insulating film 9.
- the interlayer insulating film does not need to be formed so as to bury the output electrode 7 so that the surface is flat, and may have a surface shape following the arrangement of the output electrode 7 and cover the output electrode 7.
- the output electrode 7 may have a thickness smaller than that of the output electrode 7.
- a hole pattern 1 la reaching the output electrode 7 is formed in the second insulating film 11.
- the hole pattern 11a is formed by etching the second insulating film 11 using a resist pattern (not shown) as a mask.
- the hole pattern 11a formed here is arranged only on the output electrode 7 without protruding from the output electrode 7.
- the sacrificial layer 13 is made of a material that can be selectively removed from the second insulating film 11, for example, silicon oxide.
- silicon oxide for example, an oxide film is grown on the surface of the output electrode 7 made of polysilicon by using the second insulating film 11 made of silicon nitride as a mask, and thereby the exposed surface of the output electrode 7 is sacrificed by silicon oxide. It may be covered with the sacrificial layer 13.
- a sacrificial layer 13 made of silicon oxide may be deposited and formed on the second insulating film 11, and then the surface of the sacrificial layer 13 may be polished until the second insulating film 11 is exposed.
- the vibrator electrode 15 is patterned on the sacrificial layer 13 and the second insulating film 11 while traversing the hole pattern 11a.
- the vibrator electrode 15 is patterned in a strip shape exposing a part of the hole pattern 11a and a part of the sacrificial layer 13 formed in the hole pattern 11a.
- the hole pattern 11a and the sacrificial layer 13 may be exposed from both sides of the transducer electrode 15 in the width W direction. Further, the hole pattern 11a and the sacrificial layer 13 may be exposed only from one side in the width W direction of the transducer electrode 15. As described with reference to FIG.
- the surface of the interlayer insulating film (the first insulating film 9 and the second insulating film 11) burying the output electrode 7 is formed almost flat.
- the transducer electrode 15 is formed on a flat surface. Therefore, in this step, the amount of over-etching in forming the pattern of the transducer electrode 15 can be minimized, and damage to the base (interlayer insulating film) can be reduced.
- a wiring 17 connected to the vibrator electrode 15 is formed on the second insulating film 11.
- a gold (Au) seed layer (not shown) is formed on the entire surface of the substrate 4, and then the wiring forming part is exposed and other parts are exposed.
- a covering resist pattern (not shown) is formed.
- a wiring layer is formed by growing a plating layer on the seed layer in the opening of the resist pattern by a plating method. After the formation of the wiring 17, the resist pattern is removed, and the entire surface is etched to remove the seed layer.
- the wiring on the same layer as the vibrator electrode 15 is formed by connecting the vibrator electrode 15. In this case, the wiring 17 need not be formed.
- the sacrificial layer 13 is selectively removed by etching with respect to the wiring 17, the vibrator electrode 15, the second insulating film 11, and the output electrode 7. At this time, by performing wet etching using buffered hydrofluoric acid, the sacrificial layer 13 made of silicon oxide below the vibrator electrode 15 is reliably removed.
- a space (gap) A formed by removing the sacrificial layer is formed below the transducer electrode 15, and the output electrode at the bottom of the hole pattern 11a is formed.
- a micromachine 20 having a band-shaped vibrator electrode 15 provided on the second insulating film 11 so as to cross the upper portion of the hole pattern 11a as a space A is obtained.
- the vibrator electrode 15 is disposed so as to cross the upper part of the hole pattern 11 a formed in the second insulating film 11 as a space part A. Therefore, when a voltage of a specific frequency is applied to vibrate the vibrator electrode 15, the vibrator electrode 15 crossing over the hole pattern 11 a vibrates, and this portion is vibrated by the vibrator electrode 15. Beam (vibrating part) 16 Therefore, the length (beam length L) of the beam (vibrating portion) 16 is set according to the size of the hole pattern 11a.
- the vibrator electrode 1 in the conventional micromachine in which the space A and the vibrator electrode 103 are arranged so as to straddle the output electrode 102a, the vibrator electrode 1
- the beam length L of the output electrode 103 could not be made smaller than the minimum processing dimension of the output electrode 102a
- the beam length L of the transducer electrode 15 can be reduced to the minimum processing size of the hole pattern 11a regardless of the line width of the output electrode 7. Therefore, it is possible to further reduce the beam length L and thereby achieve a higher frequency.
- the capacitance generated between the vibrator electrode 15 and the output electrode 7 is compared between the micromachine of the conventional configuration (see FIG.
- the opposing area between the vibrator electrode 15 and the output electrode 7 can be increased with respect to the beam length L, so that the capacity with respect to the beam length L can be increased. Therefore, the output can be maintained even when the beam length L is reduced for the purpose of increasing the frequency.
- the tip of the anchor portion supporting the beam (vibrating portion) 103a has an eaves that does not adhere to the base for convenience in the manufacturing process. Since the portion B was formed, the eaves portion B had an effect on the vibration of the beam (vibrating portion) 103a. For this reason, as shown in the simulation result (Simulation) in Fig. 10, in the region where the beam length (L) is reduced, the natural vibration frequency satisfies the above equation (1). Below the above value, it was difficult to increase the frequency by reducing the beam length L.
- the micromachine 20 of the present configuration it is possible to realize a high-frequency filter having a high Q value and a higher frequency band.
- the output electrode 7 and the vibrator electrode are interposed via the interlayer insulating film. It is possible to minimize the parasitic capacitance (capacity of the portion that does not contribute to vibration) that occurs between the two. For this reason, it becomes possible to improve the frequency selectivity (transmission characteristic) in the high-frequency filter including the micromachine 20.
- the vibrator electrode (15a) may have a shape having a large line width at both ends.
- the vibrator electrode (15a) with such a shape is provided, it is possible to further support the beam (vibrating part) 16 at the end of the vibrator electrode (15a). become.
- the natural vibration frequency can be made closer to a theoretical value (a value inversely proportional to the square of the length L of the vibration portion) that satisfies the above equation (1).
- connection portion for connecting the transducer electrode 15 to the input electrode 102 b formed in the same layer as the output electrode 102 a is provided. Need to be provided at one end of the vibrator electrode 103.
- the vibrator electrode 15 since the vibrator electrode 15 also serves as the input electrode as it is, there is no need to provide the above-described connection portion, and it is necessary to consider misalignment for that purpose. There is no. Therefore, as shown in FIG. 4, the pitch between the transducer electrodes 15 and the output electrodes 7 can be reduced, which is advantageous for high integration.
- the resonator electrode 15 since the resonator electrode 15 also serves as the input electrode, the hole patterns lla and 11a for giving each natural vibration frequency are arranged in a gate array, so that the layout of the resonator electrode 15 can be reduced. Circuits of various modes can be configured simply by changing And become possible.
- FIGS. 6 and 7 are plan views for explaining the manufacturing method of the second embodiment.
- a method for manufacturing a micromachine according to the second embodiment will be described with reference to FIGS. 6 and 7 based on FIGS. 5A to 5C.
- 5A to 5C correspond to the AA cross section in the plan views of FIGS.
- an interlayer insulating film composed of the output electrode 7, the first insulating film 9, and the second insulating film 11 is formed on the substrate 4, and a hole pattern 11a is formed in the second insulating film 11.
- the output electrode 7 is exposed at the bottom, and the exposed surface of the output electrode 7 is covered with a sacrificial layer 13.
- the vibrator electrode 31 is formed on the sacrificial layer 13 and the second insulating film 11 in a state of crossing over the hole pattern 11a.
- the vibrator electrode 31 is formed in a band shape having a hole 31a reaching the sacrificial layer 13 in the hole pattern 11a while closing the hole pattern 11a. The shape is such that a part of the sacrificial layer 13 formed inside the part 11a of the hole pattern 11a is exposed.
- the holes 31a may be provided at two or more places (two places in the drawing) at the vibrator electrode 31 or may be provided at one place. .
- the opening area ratio (with respect to the hole pattern 11a) and the arrangement state (including the number) of the holes 3la are the objectives when the micromachine obtained by the second embodiment is used as a high-frequency filter. It is set appropriately so that an output in the frequency band is obtained ( then, as shown in FIG. This step is the same as that shown in FIG. Will be performed in the same manner as described above.
- the sacrificial layer 13 is selectively removed by etching with respect to the wiring 17, the vibrator electrode 31, the second insulating film 11 and the output electrode 7, as in the first embodiment.
- an etchant is supplied to the sacrificial layer 13 from the holes 31a by performing wet etching using noffered hydrofluoric acid, and the sacrificial layer 13 made of silicon oxide below the vibrator electrode 31 is formed. Is surely removed.
- a space (gap) A formed by removing the sacrificial layer is formed below the vibrator electrode 31 and the bottom of the hole pattern 11a is formed.
- the output electrode 7 is exposed.
- the inside of the hole pattern 11a is defined as a space A, and the hole pattern 11a is closed.
- the band-shaped vibrator electrode 31 having a hole 31a communicating with the space A in the hole pattern 11a is formed. Is obtained on the second insulating film 11 to obtain a micromachine 40.
- the interior of the hole pattern 11 a is defined as the space A, and the vibrator electrode 31 is arranged so as to cover the upper portion.
- the vibrator electrode 31 communicates with the space A.
- a hole 31a is provided.
- the vibrator electrode 31 that blocks the hole pattern 11 a vibrates, and this portion is the beam of the vibrator electrode 31. (Vibration part) 3 lb. Therefore, the length (beam length) of the beam (vibrating part) 3.1b is set according to the size of the hole pattern 11a.
- the length of the beam (vibrating portion) 3 lb (beam length L) is not dependent on the line width of the output electrode 7 but depending on the size of the hole pattern 11a. Can be set. As a result, it is possible to achieve a higher frequency by miniaturizing the beam length L and to maintain the output.
- the beam (vibrating portion) 31 is closed because the hole pattern 11a is closed by the beam (vibrating portion) 31b. b is supported and fixed to the second insulating film 11 over the entire circumference. Therefore, a higher frequency of the vibrator electrode 31 can be achieved as compared with the micromachine of the first embodiment.
- both ends of the oscillator electrode 31, that is, a part of the anchor supporting the beam (oscillating portion) 31 b is covered with the second insulating film over the entire surface. 1 Fixed to 1. For this reason, as in the micromachine of the first embodiment, only the beam (oscillator) -31b is involved in the vibration and vibrates. Therefore, it is possible to realize a high-frequency filter having a high Q value and a higher frequency band.
- the vibrator electrode 31c may have a shape in which large portions are provided at both ends. This ensures that the beam (vibrating part) supports 3 lbs and further increases the natural vibration frequency.
- the same effect as that described with reference to FIG. 4 in the first embodiment can be obtained because the vibrator electrode 31 also serves as the input electrode as it is. Becomes possible. Industrial applicability
- a hole pattern is formed in the interlayer insulating film covering the output electrode, and the vibration crossing the hole pattern via the space in the hole pattern.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Micromachines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/492,397 US20040245587A1 (en) | 2002-08-09 | 2003-08-08 | Micromachine and production method thereof |
EP03784618A EP1528037A4 (en) | 2002-08-09 | 2003-08-08 | MICRO-MACHINE AND PROCESS FOR PRODUCING THE SAME |
US11/530,774 US7875940B2 (en) | 2002-08-09 | 2006-09-11 | Micromachine and production method thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002-232324 | 2002-08-09 | ||
JP2002232324A JP4007115B2 (ja) | 2002-08-09 | 2002-08-09 | マイクロマシンおよびその製造方法 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10492397 A-371-Of-International | 2003-08-08 | ||
US11/530,774 Continuation US7875940B2 (en) | 2002-08-09 | 2006-09-11 | Micromachine and production method thereof |
Publications (1)
Publication Number | Publication Date |
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WO2004014784A1 true WO2004014784A1 (ja) | 2004-02-19 |
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ID=31711826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/010150 WO2004014784A1 (ja) | 2002-08-09 | 2003-08-08 | マイクロマシンおよびその製造方法 |
Country Status (7)
Country | Link |
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US (2) | US20040245587A1 (ja) |
EP (1) | EP1528037A4 (ja) |
JP (1) | JP4007115B2 (ja) |
KR (1) | KR101007612B1 (ja) |
CN (1) | CN1268538C (ja) |
TW (1) | TWI235135B (ja) |
WO (1) | WO2004014784A1 (ja) |
Cited By (1)
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US7705693B2 (en) * | 2004-04-06 | 2010-04-27 | Seiko Epson Corporation | μ-Flap type nano/micro mechanical device and fabrication method thereof |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4007172B2 (ja) * | 2002-12-03 | 2007-11-14 | ソニー株式会社 | マイクロマシンおよびその製造方法 |
KR100861623B1 (ko) | 2004-04-29 | 2008-10-07 | 삼성전기주식회사 | 진동형 회절 광변조기 |
KR101257846B1 (ko) * | 2005-08-26 | 2013-04-24 | 삼성전자주식회사 | 단결정 실리콘 제조방법 및 이를 이용한 tft의 제조방법 |
JP2008035358A (ja) | 2006-07-31 | 2008-02-14 | Hitachi Media Electoronics Co Ltd | 薄膜圧電バルク波共振器及びそれを用いた高周波フィルタ |
JP6239047B1 (ja) * | 2016-06-17 | 2017-11-29 | 三菱電機株式会社 | 物体認識統合装置および物体認識統合方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07333077A (ja) * | 1994-06-10 | 1995-12-22 | Fujitsu Ltd | 振動素子、振動素子の使用方法及び振動素子の製造方法 |
JPH08247767A (ja) * | 1995-03-08 | 1996-09-27 | Nippondenso Co Ltd | 角速度センサ |
JPH0969749A (ja) * | 1995-09-01 | 1997-03-11 | Murata Mfg Co Ltd | 圧電薄膜振動子 |
JPH10111189A (ja) * | 1996-10-09 | 1998-04-28 | Yokogawa Electric Corp | 振動式トランスデューサとその製造方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5374840A (en) * | 1989-04-25 | 1994-12-20 | Matsushita Electronics Corporation | Semiconductor device with isolated transistors |
US3634787A (en) * | 1968-01-23 | 1972-01-11 | Westinghouse Electric Corp | Electromechanical tuning apparatus particularly for microelectronic components |
US3699482A (en) * | 1971-06-30 | 1972-10-17 | Ibm | Surface waveguiding in ceramics by selective poling |
US4671852A (en) * | 1986-05-07 | 1987-06-09 | The Standard Oil Company | Method of forming suspended gate, chemically sensitive field-effect transistor |
DE68926601T2 (de) * | 1988-09-02 | 1997-01-23 | Honda Motor Co Ltd | Halbleitermessaufnehmer |
JPH0320658A (ja) * | 1989-03-30 | 1991-01-29 | Ricoh Co Ltd | 多ガス識別ガス検出装置 |
US6124765A (en) * | 1997-10-24 | 2000-09-26 | Stmicroelectronics, Inc. | Integrated released beam oscillator and associated methods |
JP3811304B2 (ja) * | 1998-11-25 | 2006-08-16 | 株式会社日立製作所 | 変位センサおよびその製造方法 |
US6238946B1 (en) * | 1999-08-17 | 2001-05-29 | International Business Machines Corporation | Process for fabricating single crystal resonant devices that are compatible with integrated circuit processing |
US20020074897A1 (en) * | 2000-12-15 | 2002-06-20 | Qing Ma | Micro-electromechanical structure resonator frequency adjustment using radient energy trimming and laser/focused ion beam assisted deposition |
DE60037132T2 (de) * | 2000-12-21 | 2008-09-11 | Eta Sa Manufacture Horlogère Suisse | Zeitbezug mit einem integrierten mikromechanischen Stimmgabelresonator |
US6448103B1 (en) * | 2001-05-30 | 2002-09-10 | Stmicroelectronics, Inc. | Method for making an accurate miniature semiconductor resonator |
US6635506B2 (en) * | 2001-11-07 | 2003-10-21 | International Business Machines Corporation | Method of fabricating micro-electromechanical switches on CMOS compatible substrates |
JP3919616B2 (ja) * | 2002-07-05 | 2007-05-30 | キヤノン株式会社 | マイクロ構造体及びその製造方法 |
JP4123044B2 (ja) * | 2003-05-13 | 2008-07-23 | ソニー株式会社 | マイクロマシンおよびその製造方法 |
DE10324985B4 (de) * | 2003-06-03 | 2005-06-16 | Man B & W Diesel Ag | Kraftstoffeinspritzdüse |
US7049804B2 (en) * | 2004-07-12 | 2006-05-23 | Canon Kabushiki Kaisha | Electric potential measuring apparatus, and image forming apparatus |
JPWO2007091417A1 (ja) * | 2006-02-10 | 2009-07-02 | 株式会社村田製作所 | 振動子モジュール |
JP4370339B2 (ja) * | 2007-03-23 | 2009-11-25 | Okiセミコンダクタ株式会社 | Mems振動子の製造方法及びmems振動子 |
-
2002
- 2002-08-09 JP JP2002232324A patent/JP4007115B2/ja not_active Expired - Fee Related
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- 2003-08-05 TW TW092121385A patent/TWI235135B/zh not_active IP Right Cessation
- 2003-08-08 CN CNB038012731A patent/CN1268538C/zh not_active Expired - Fee Related
- 2003-08-08 EP EP03784618A patent/EP1528037A4/en not_active Withdrawn
- 2003-08-08 US US10/492,397 patent/US20040245587A1/en not_active Abandoned
- 2003-08-08 WO PCT/JP2003/010150 patent/WO2004014784A1/ja active Application Filing
- 2003-08-08 KR KR1020047005066A patent/KR101007612B1/ko not_active IP Right Cessation
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07333077A (ja) * | 1994-06-10 | 1995-12-22 | Fujitsu Ltd | 振動素子、振動素子の使用方法及び振動素子の製造方法 |
JPH08247767A (ja) * | 1995-03-08 | 1996-09-27 | Nippondenso Co Ltd | 角速度センサ |
JPH0969749A (ja) * | 1995-09-01 | 1997-03-11 | Murata Mfg Co Ltd | 圧電薄膜振動子 |
JPH10111189A (ja) * | 1996-10-09 | 1998-04-28 | Yokogawa Electric Corp | 振動式トランスデューサとその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1528037A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7705693B2 (en) * | 2004-04-06 | 2010-04-27 | Seiko Epson Corporation | μ-Flap type nano/micro mechanical device and fabrication method thereof |
Also Published As
Publication number | Publication date |
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US20070018262A1 (en) | 2007-01-25 |
KR20050026690A (ko) | 2005-03-15 |
JP4007115B2 (ja) | 2007-11-14 |
US7875940B2 (en) | 2011-01-25 |
TWI235135B (en) | 2005-07-01 |
TW200415117A (en) | 2004-08-16 |
CN1568284A (zh) | 2005-01-19 |
EP1528037A1 (en) | 2005-05-04 |
US20040245587A1 (en) | 2004-12-09 |
CN1268538C (zh) | 2006-08-09 |
EP1528037A4 (en) | 2007-09-12 |
KR101007612B1 (ko) | 2011-01-12 |
JP2004066432A (ja) | 2004-03-04 |
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