WO2019219438A1 - Verfahren zum herstellen mindestens einer membrananordnung, membrananordnung für einen mikromechanischen sensor und bauteil - Google Patents
Verfahren zum herstellen mindestens einer membrananordnung, membrananordnung für einen mikromechanischen sensor und bauteil Download PDFInfo
- Publication number
- WO2019219438A1 WO2019219438A1 PCT/EP2019/061608 EP2019061608W WO2019219438A1 WO 2019219438 A1 WO2019219438 A1 WO 2019219438A1 EP 2019061608 W EP2019061608 W EP 2019061608W WO 2019219438 A1 WO2019219438 A1 WO 2019219438A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wafer
- substrate
- membrane
- volume
- shaped
- Prior art date
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- AGTSLBSSVVJZMX-UHFFFAOYSA-N C(C1)C1C1CCCC1 Chemical compound C(C1)C1C1CCCC1 AGTSLBSSVVJZMX-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
-
- 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
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00134—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems comprising flexible or deformable structures
- B81C1/00182—Arrangements of deformable or non-deformable structures, e.g. membrane and cavity for use in a transducer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/02—Sensors
- B81B2201/0214—Biosensors; Chemical sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2203/00—Basic microelectromechanical structures
- B81B2203/01—Suspended structures, i.e. structures allowing a movement
- B81B2203/0127—Diaphragms, i.e. structures separating two media that can control the passage from one medium to another; Membranes, i.e. diaphragms with filtering function
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C2201/00—Manufacture or treatment of microstructural devices or systems
- B81C2201/01—Manufacture or treatment of microstructural devices or systems in or on a substrate
- B81C2201/0101—Shaping material; Structuring the bulk substrate or layers on the substrate; Film patterning
- B81C2201/0111—Bulk micromachining
- B81C2201/0115—Porous silicon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C2201/00—Manufacture or treatment of microstructural devices or systems
- B81C2201/01—Manufacture or treatment of microstructural devices or systems in or on a substrate
- B81C2201/0174—Manufacture or treatment of microstructural devices or systems in or on a substrate for making multi-layered devices, film deposition or growing
- B81C2201/019—Bonding or gluing multiple substrate layers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/005—Specially adapted to detect a particular component for H2
Definitions
- the invention relates to a method for producing at least one
- Membrane arrangement for a micromechanical sensor for the calorimetric detection of gases as well as a membrane arrangement and a component with such a membrane arrangement.
- sensors For detecting hydrogen, sensors based on the calorimetric principle may be used. Such sensors usually consist of a membrane on which a heating element is arranged. This heating element can be operated with a constant current / voltage or with a constant power by a control electronics.
- the temperature of the heating element drops due to the higher thermal conductivity of the hydrogen and the associated higher heat dissipation. In this case, the resistance of the heating element is reduced. This change in resistance leads to an additional heating power, which must be applied by the control electronics in order to keep the heating element at a constant temperature.
- the additional heating power is proportional to
- thermal conductivity depends on the ambient temperature
- another temperature sensor for example with another Platinum resistance in an adjacent area of the membrane, the ambient temperature are measured.
- the humidity in the vicinity of the membrane is also relevant when considering the thermal conductivity of the air and must be taken into account by additional sensors or a more complex evaluation of the measured data.
- the operating voltage can also be varied to distinguish hydrogen from air humidity. This
- Differentiation is particularly necessary when hydrogen in the exhaust air of a fuel cell stack is to be detected, for example, but not necessarily, that of a fuel cell vehicle. There is a high humidity.
- the object underlying the invention can be seen to suggest a manufacturing method and an improved membrane assembly, which reduces external influences on a concentration measurement.
- the wafer-shaped substrate may preferably be a doped or an undoped semiconductor.
- thermally and electrically insulating coating of, for example, oxide, nitride, oxide-nitride or oxide-nitride oxide or the like.
- the thermally and electrically insulating layer ideally forms an etch stop layer below.
- the material is chosen such that atmospheric moisture can not be stored in the layer or diffused through the layer.
- the wafer-shaped substrate preferably already comprises electrically conductive structures for forming heating elements, for example of platinum, aluminum, molybdenum, tungsten, copper, gold, silver, doped silicon or the like with or without adhesion promoter layers of aluminum, titanium, tantalum or their oxides or nitrides and the same. These can for example be equipped, sputtered or steamed, a combination of these steps is also possible. Furthermore, the wafer-shaped substrate has further electrical isolation over the metallization, e.g. made of oxide or nitride or the like. Another function of the insulation layer is protection or separation from / from environmental influences such as dust and moisture.
- At least one reference volume is introduced from a front side of the wafer-shaped substrate into the wafer-shaped substrate by forming a reference membrane at least regionally covering the reference volume by a surface micromechanical and / or volume micromechanical process.
- Reference volume under formation of a reference volume at least partially covering the reference membrane from a front into the wafer-shaped substrate by a PorSi process with or without subsequent removal of the porous silicon by, for example, a dry etching step or a cloud trench are introduced.
- the reference volume can be used as a reference for gas measurement, for example when using a Wheatstone bridge in the metal layer.
- the reference volume may be designed to be open or closed in the direction of one of the two surfaces of the wafer-shaped substrate, in the open embodiment is an exchange with gases and / or gas mixtures in the
- At least one measurement volume adjacent to the at least one reference volume is introduced from a rear side or the front side of the wafer-shaped substrate into the wafer-shaped substrate to form a measurement membrane.
- the measuring volume can be introduced into the wafer-shaped substrate with the aid of a suitable surface micromechanical process.
- a can also be introduced into the wafer-shaped substrate with the aid of a suitable surface micromechanical process.
- a can also be introduced into the wafer-shaped substrate with the aid of a suitable surface micromechanical process.
- Combination of anisotropic and isotropic etching process can be used. This can be performed, for example, by sacrificial layer etching and / or wet etching.
- At least one measurement volume can be introduced by forming a measurement membrane at least partially covering the measurement membrane and an initially closed measurement volume from a front side into the wafer-shaped substrate by a PorSi process with or without subsequent removal of the porous silicon.
- Measuring volume is conceivable.
- the wafer-shaped cap substrate which will be defined in more detail below, could be omitted altogether. This is possible, for example, in wet etching processes and leads to a very favorable production form of the wafer arrangement, because it material costs and the manufacturing time of the sensor can be further reduced.
- a volume-limiting membrane can be formed at the same time.
- Reference membrane and / or a measuring membrane is that with minimized power consumption, an over-temperature compared to the environment can be set.
- Ambient conditions such as temperature and humidity, and aging of the chip and an associated drift of the sensor are hardly affected.
- a wafer-shaped cap substrate is applied to the front side of the wafer-shaped substrate.
- wafer-shaped substrate consists in increasing the mechanical stability and the mechanical strength.
- the wafer-shaped cap substrate realizes a fixed thermal boundary condition, thus increasing the
- Membrane another cavity can be realized, which is filled for example with a thermally different conductive gas. Especially with a poorly conductive gas or vacuum, the sensitivity of the proposed
- Measuring device increases.
- Manufacturing method for a micromechanical sensor in particular for a double-membrane chip with an enclosed reference volume for the detection of gases, in particular for hydrogen, in particular by means of the
- Convection or radiation can be realized.
- Convection or radiation can be realized.
- in a further embodiment of the invention may be in the wafer-shaped
- Cap substrate a channel structure can be created for the targeted supply of measuring and reference gas.
- the wafer can be separated into a plurality of wafer sections.
- the respective wafer sections may be used to manufacture the
- the measurement volume can be analogous to the reference volume through one of the front side of the wafer-shaped substrate applied.
- the face-down machining for producing and / or the gas-conducting opening of the measuring volume by means of a
- Trench processes are realized. Direct contact of the front side of the wafer with a holding device, referred to below as chuck, which is referred to as face down processing, may lead to damage of the reference membrane and / or rupture of the membrane during processing due to unevenness and particles on the holding device.
- chuck which is referred to as face down processing
- the wafer-shaped wafer-shaped wafer-shaped wafer-shaped substrate According to a further embodiment of the method, the wafer-shaped
- the at least one measurement volume is introduced by dry etching into the wafer-shaped substrate.
- sacrificial structures can be removed.
- undercuts can be generated be able to bring, for example, fluid dynamic advantages when introducing the gas to be measured.
- the at least one measurement volume is introduced by a trench process into the wafer-shaped substrate.
- the at least one measurement volume is introduced into the wafer-shaped substrate by a wet-chemical etching process.
- the wafer-shaped substrate does not rest on a chuck, and thus this step may take place before the cap has been applied. Is no further mechanical protection or increased stability of the wafer-shaped
- Substrate necessary can be dispensed with the cap.
- Another advantage of the wet chemical etching method is that the front and back sides of the wafer-shaped substrate can be made in a simultaneous operation. Thus can be processed very cost-effective with high process homogeneity.
- the at least one measuring volume can thus be introduced flexibly into the wafer-shaped substrate by a large number of different production methods by material removal.
- the wafer-shaped wafer-shaped wafer-shaped wafer-shaped substrate According to a further embodiment of the method, the wafer-shaped
- wafer bonding is to be understood as a glass frit bonding, a eutekitscher or anodic bond.
- Different bonding methods allow different process control, in particular on an existing boundary layer of wafer-shaped substrate and wafer-shaped cap substrate. Furthermore, different bonding methods have different media resistance in combination with realizable structure width.
- an adhesion step may be performed after soldering, bonding or welding the wafer-shaped cap substrate. This may be the additional fixation of the wafer-shaped cap substrate or the sealing of the
- the wafer-shaped cap substrate can thus be arranged flexibly by different methods on the wafer-shaped substrate.
- the wafer-shaped cap substrate when the wafer-shaped cap substrate is applied to the wafer-shaped substrate, at least one reference volume open or closed in the direction of the front side of the wafer-shaped cap substrate between the at least one reference membrane and the wafer-shaped cap substrate and / or between the at least one measuring membrane and the formed wafer-shaped cap substrate.
- the wafer-shaped cap substrate may have recesses introduced in advance in the region of the at least one reference membrane and / or in the region of the at least one measuring membrane. These recesses may extend through a thickness of the wafer-shaped cap substrate and thus form a gas passage through the wafer-shaped cap substrate.
- the wafer-shaped cap substrate may form additional volumes over the membranes, which may be provided with a
- Reference gas can be filled.
- Measuring volume of the back of the wafer-shaped substrate gas-conducting opened can be introduced in the wafer-shaped substrate in an open manner on the back or can be embodied in a gas-conducting manner by openings additionally introduced into the wafer-shaped substrate.
- the advantage of introducing a reference volume from the front side and the measurement volume from the rear side is that different gases can be supplied from the front side and the rear side. For example, it is possible to supply air from the front and hydrogen from the back.
- channels and openings can be introduced by trench processes in the back wall of the at least one measurement volume.
- the dimension of the openings in this case is so pronounced that gaseous media can get into the at least one measuring volume.
- Connection get into the at least one measurement volume.
- the at least one measurement volume can be opened very inexpensively by a wet-chemical process.
- the at least one measurement volume is opened in the gas-conducting manner at the rear by an etching process applied to the back side of the wafer-shaped substrate.
- This etching process may include a trench process, a dry etching process
- the at least one measuring volume introduced in the wafer-shaped substrate and / or the reference volume can be directed in the direction of the rear side of the
- PorSi technology gas-conducting modified.
- the reference volume can in this case be opened in the same way as the measuring volume only from the front of the arrangement. This would have the advantage that the Wheatstone bridge due to higher symmetry with the
- Measuring volume is easier to tune.
- the porous structure is like this
- Particle size can not get into the at least one measurement volume.
- a process control with PorSi is a porous semiconductor structure anyway
- a sealing means is arranged on the back side of the wafer-shaped substrate.
- the sealed cross section of the back of the wafer-shaped substrate can be reduced by the gas-conducting supply to the measuring volume, so that a seal against moisture and other environmental influences by means of wider
- Sealing rings which are used for example for a media resistance, in the range of at least one measurement volume can be designed technically easier.
- An advantage of the attached sealant is that the gas below the sample volume can be separated, for example, a hydrogen-moisture mixture in an exhaust tube from a second gas located above the wafer-shaped substrate, such as ambient air.
- a particular advantage is that it allows the bond pads and bonding wires to be separated from a damaging gas or other component of the air (moisture).
- the sealant sits in particular on the back, since the dielectric layers present there are particularly moisture-stable. It is also conceivable to arrange the sealant on the front when it comes to other sealing functions, such as dust.
- Measuring membrane at least one resistor and at least one electrically conductive compound, wherein the with the wafer-shaped
- Membrane arrangements is separated. In particular, this can be a
- the implementation of the bridge circuit can take place on a single chip in the embodiment of at least one double membrane or on a chip with a membrane, in which the cap provides and separates measurement and reference volumes.
- the sensor signal of such a sensor may be due to changing environmental conditions or aging of the
- At least one reference volume is introduced from a front side into the wafer-shaped substrate by forming a reference membrane at least partially covering the reference volume by a PorSi process with or without subsequent removal of a porous silicon.
- Reference volume at least partially covering the reference membrane and an initially closed measurement volume to form a
- Measuring volume at least partially covering the measuring membrane from a front side into the wafer-shaped substrate by a PorSi process with or without subsequent removal of the porous silicon introduced.
- the reference volume and the measuring volume can be introduced simultaneously or individually. Then there is the possibility of these cavities depending on the desired later
- the wafer-shaped cap substrate can be omitted, which further streamlines the process flow. Furthermore, the stability of the reference and / or measuring membrane can be increased by being supported by a porous structure, which can be measured at higher pressures in the reference volume and / or measuring volume.
- An advantage of the process control by means of the ProSi process is that in the at least one reference and / or measuring volume, a specific filter function is realized by the porous silicon.
- the porous semiconductor structure has a large surface area and with pore sizes which can be adjusted via the process control and can thus assume a filter function with respect to undesired particles, aerosols and / or luminous moisture. Unwanted components can not reach the at least one reference and / or measurement volume due to the particle size. This could be of particular advantage if the gas and / or gas mixture to be measured is contaminated.
- a diaphragm assembly for a sensor for calorimetrically detecting gases produced by a method of the invention.
- the membrane arrangement has a cap substrate section connected to a substrate section and at least one reference volume introduced into the substrate section, which is delimited at least on one side in the direction of the cap substrate section by a reference membrane. Furthermore, the membrane arrangement has at least one measuring volume introduced into the substrate section, which is bounded in the direction of the cap substrate section by a one-sided measuring membrane, the reference membrane preferably being at least
- the measuring volume is designed to be fluid-conducting in the direction of a rear side of the substrate section.
- a diaphragm assembly for a sensor for calorimetrically detecting gases produced according to the method has at least one measurement volume with a gas access from the back side of the wafer-shaped substrate and at least one reference volume which is closed in the direction of the back side of the wafer-shaped substrate.
- the closed reference volume can be used as a reference for the gas measurement, for example when using a Wheatstone bridge in the metal layer.
- the membrane assembly can be used, for example, for a configuration as a double-membrane chip, in which a cavern or a
- Measuring volume for example, from the back of the wafer-shaped substrate is open and thus has a gas access, wherein the adjacent
- Reference volume is completed from this access page (see PA 13).
- a spatial separation of the reference membrane from the measuring membrane proves to be particularly favorable because it can form a reference resistor in cooperation with the electrically conductive structures to any changes, such as humidity and temperature and / or others, in the vicinity of the measuring signal decouple.
- Another advantage of the reference volume is that a defined gas and / or gas mixture can be included and thus can be measured relative to this.
- a component in particular a sensor, is provided with a membrane arrangement according to the invention.
- the membrane arrangement may preferably be a section of a wafer arrangement which is processed according to the method according to the invention and
- volumes are led.
- a hermetic shielding of the reference volume can be realized by the cap substrate section.
- a hermetic shield can also be realized by the
- Reference volume is not opened gas-conducting or closed again after filling with a reference gas. This allows outer
- Influences on a measurement, such as a hydrogen concentration can be reduced, whereby a control electronics for operating the diaphragm assembly based sensor technically easier and
- Fig. 1 is a schematic section through a membrane arrangement according to
- FIG. 2 shows a schematic section through a membrane arrangement according to FIG.
- Fig. 3 is a schematic representation of a method for producing a membrane assembly according to a first embodiment.
- FIG. 1 shows a schematic section through a membrane arrangement 1 according to a first embodiment of the invention.
- the membrane assembly 1 here is a section of a wafer with a multiplicity of membrane arrangements 1, which have been separated from one another by a separation process.
- the membrane arrangement 1 is configured as an arrangement for a double-membrane chip and can be produced according to a production process for layers of a membrane, for example an ONO membrane (oxide-nitride-oxide) having at least one conductor track contained therein, for example of the metal platinum, gold, silver, Copper, molybdenum, tungsten or non-metallic conductive layers such as polysilicon or a similar material.
- a membrane for example an ONO membrane (oxide-nitride-oxide) having at least one conductor track contained therein, for example of the metal platinum, gold, silver, Copper, molybdenum, tungsten or non-metallic conductive layers such as polysilicon or a similar material.
- the membrane may consist of only oxide, only nitride or a mixture of both.
- the arrangement 1 has a reference membrane 2, which by a
- Silicon structure in a wafer-shaped substrate 4 has been prepared.
- a reference volume 6 is formed, which is delimited by the reference membrane 2 in the direction of a front side V of the wafer-shaped substrate 4.
- the reference membrane 2 is here at least partially open, so that a
- Gas exchange with the reference volume 6 can take place.
- the arrangement 1 has a wafer-shaped cap substrate 8, which was applied to the wafer-shaped substrate 4 after the preparation of the reference membrane 2.
- the wafer-shaped cap substrate 8 has recesses 7 in the region of membranes 2, 10, which extend through the wafer-shaped cap substrate 8.
- the areas 2 and 10 can also be connected to each other.
- the recesses 7 have sloping flanks, which may be caused by a wet etching process.
- the recesses 7 can also be introduced into the wafer-shaped cap substrate 8 with other material removal methods such as, for example, trenches.
- the wafer-shaped cap substrate 8 is disposed on the wafer-shaped substrate 4 by wafer bonding with glass frit. Due to the wafer-shaped cap substrate 8, the arrangement 1 receives additional stability.
- the arrangement 1 has a measuring diaphragm 10 adjacent to the reference diaphragm 2.
- the measuring diaphragm 10 was produced in the wafer-shaped substrate 4 in a further processing with a so-called “face down" orientation of the arrangement 1. It was from the back of the R
- the measuring volume 14 is designed to be open in the direction of the rear side R and thus allows unimpeded gas flow to the measuring diaphragm 10, but not through it.
- the wafer-shaped cap substrate 8 may also be dispensed with.
- a sealing means 15 in the form of a sealing ring 15 is arranged on the rear side R of the wafer-shaped substrate 4.
- FIG. 2 shows a schematic section through a membrane arrangement 1 according to a second embodiment of the invention.
- the measurement volume 14 was also by a surface or
- the measuring volume 14 to the front and to the rear side R of the wafer-shaped substrate 4 is closed and was opened by a subsequent step, for example by a trench process or other etching process gas-conducting to the rear side R.
- the measuring volume 14 is arranged at the rear
- FIG. 3 shows a schematic representation of a method 18 for
- a wafer-shaped substrate 4 is provided.
- the wafer-shaped substrate 4 can then with resistors or with electrically conductive compounds in the form of one or more
- Coatings and their structuring are equipped or provided by means of lithography and the electrically conductive layer is coated by electrically insulating layers 21.
- the conductive compounds preferably form heating resistors.
- At least one reference volume 6 is introduced 22 from a front side V into the wafer-shaped substrate 4 by forming a reference membrane 6 at least regionally covering the reference volume 6 by a surface, volume micromechanical process or a PorSi with a dry etching step.
- the electrical lines and enveloping electrically and thermally insulating layers can also be applied to the wafer-shaped substrate 4 after the forming 22 of the reference volume 6 and / or measuring volume 14 according to method step 21.
- a wafer-shaped cap substrate 8 is applied to the wafer-shaped substrate 4 and the wafer arrangement is reversed 24 so that a processing of the back side R can be performed.
- This step can be omitted alternatively.
- Reference volume 6 adjacent measuring volume 14 from the back side R of the wafer-shaped substrate 4 with the formation of a measuring membrane 10 in the wafer-shaped substrate 4 is introduced. If the measuring volume 14 has already been produced, in this step 25 a gas inflow or a fluid-conducting connection to the measuring volume 14 can be introduced from the rear side R of the wafer-shaped substrate 4. In a final step 26, the wafer-shaped cap substrate 8 connected to the wafer-shaped cap substrate 8 is separated into at least two membrane assemblies 1.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980033152.2A CN112136038A (zh) | 2018-05-17 | 2019-05-07 | 用于制造至少一个膜片装置的方法、用于微机械的传感器的膜片装置和构件 |
JP2020564439A JP7105922B2 (ja) | 2018-05-17 | 2019-05-07 | 少なくとも1つの膜構成体の製造方法、マイクロメカニカルセンサ用の膜構成体、および部品 |
KR1020207035690A KR102653650B1 (ko) | 2018-05-17 | 2019-05-07 | 하나 이상의 멤브레인 장치를 제조하기 위한 방법, 미세기계식 센서용 멤브레인 장치, 및 부품 |
US17/053,253 US11866323B2 (en) | 2018-05-17 | 2019-05-07 | Method for manufacturing at least one membrane system, membrane system for a micromechanical sensor, and component |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102018207689.8 | 2018-05-17 | ||
DE102018207689.8A DE102018207689B4 (de) | 2018-05-17 | 2018-05-17 | Verfahren zum Herstellen mindestens einer Membrananordnung, Membrananordnung für einen mikromechanischen Sensor und Bauteil |
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WO2019219438A1 true WO2019219438A1 (de) | 2019-11-21 |
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PCT/EP2019/061608 WO2019219438A1 (de) | 2018-05-17 | 2019-05-07 | Verfahren zum herstellen mindestens einer membrananordnung, membrananordnung für einen mikromechanischen sensor und bauteil |
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US (1) | US11866323B2 (de) |
JP (1) | JP7105922B2 (de) |
KR (1) | KR102653650B1 (de) |
CN (1) | CN112136038A (de) |
DE (1) | DE102018207689B4 (de) |
WO (1) | WO2019219438A1 (de) |
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DE102020134366A1 (de) | 2020-12-21 | 2022-06-23 | Infineon Technologies Ag | Sensor zum Messen einer Gaseigenschaft |
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DE102018207689B4 (de) | 2021-09-23 |
DE102018207689A1 (de) | 2019-11-21 |
JP7105922B2 (ja) | 2022-07-25 |
CN112136038A (zh) | 2020-12-25 |
US11866323B2 (en) | 2024-01-09 |
JP2021523837A (ja) | 2021-09-09 |
KR102653650B1 (ko) | 2024-04-03 |
US20210238031A1 (en) | 2021-08-05 |
KR20210010502A (ko) | 2021-01-27 |
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