CN106332448A - Ultrasonic wave sensor and electronic apparatus equipped with same - Google Patents

Ultrasonic wave sensor and electronic apparatus equipped with same Download PDF

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Publication number
CN106332448A
CN106332448A CN201610636877.9A CN201610636877A CN106332448A CN 106332448 A CN106332448 A CN 106332448A CN 201610636877 A CN201610636877 A CN 201610636877A CN 106332448 A CN106332448 A CN 106332448A
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China
Prior art keywords
substrate
layer
electrode layer
circuit board
electrode
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Application number
CN201610636877.9A
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Chinese (zh)
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CN106332448B (en
Inventor
王娟
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Interface Optoelectronics Shenzhen Co Ltd
Cheng Cheng Technology Chengdu Co Ltd
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Miics Business Consulting (shenzhen) Co Ltd
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Priority to CN201610636877.9A priority Critical patent/CN106332448B/en
Priority to TW105125587A priority patent/TWI644083B/en
Publication of CN106332448A publication Critical patent/CN106332448A/en
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Publication of CN106332448B publication Critical patent/CN106332448B/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/18Printed circuits structurally associated with non-printed electric components
    • H05K1/189Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007Types of components
    • H05K2201/10151Sensor

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Disclosed is an ultrasonic wave sensor. The ultrasonic wave sensor comprises a substrate, a flexible printed circuit board, a signal receiving element and a signal sending element, wherein the signal receiving element comprises a first piezoelectric layer, a first electrode layer and a first protection layer; a connecting hole is formed in the end part of the first protection layer in a run-through manner; the connecting hole can expose one part of the first electrode layer; the flexible printed circuit board comprises a stage-structured first connecting part; the first connecting part comprises a first end part and a second end part which is formed by extending from one side at one end of the first end part; the first end part and the substrate are arranged at intervals in parallel, and the first end part is provided with a first conductive part, which is electrically connected with the substrate, in a protruding manner; the second end part and the first protection layer are arranged at intervals in parallel, and the second end part is provided with a second conductive part in a protruding manner corresponding to the connecting hole; and the second conductive part is electrically connected with the first electrode layer through the connecting hole.

Description

Ultrasonic sensor and there is the electronic installation of this ultrasonic sensor
Technical field
The present invention relates to a kind of ultrasonic sensor and there is the electronic installation of this ultrasonic sensor.
Background technology
As it is shown in figure 1, the electronic installation 200 of prior art includes that TFT substrate 201, signal sending element 203, signal connect Receive element 205 and flexible circuit board 206.Signal sending element 203 and signal receiving element 205 are pasted by tack coat 202 respectively Together in TFT substrate 201 both sides.The bending extension of signal receiving element 205 one end is formed with connection end 207, connects end 207 and is positioned at this TFT substrate 201 side.One end of flexible circuit board 206 is electrically connected with this signal sending element 203, and flexible circuit board 206 The connection end 207 of conductive part 208 with signal receiving element 205 by being arranged on the other end is electrically connected with.Flexible circuit board 206 One end and TFT substrate 201 and be connected between end 207 formation space 210.A length of fixing length due to flexible circuit board 206 Degree, when the connection end 207 of conductive part 208 and signal receiving element 205 is electrically connected with, flexible circuit board 206 end is in space 210 Bending upfold, so that the fold part of flexible circuit board 206 promotes forward flexible circuit board 206 conductive part 208, causes The easy off normal in electricity portion 208, thus flexible circuit board 206 and signal receiving element 205 are susceptible to loose contact.Further, since it is soft Property circuit board 206 end bend upfold in space 210, the space in space 210 is relatively big, causes the overall body of electronic installation 200 Long-pending change is big, is difficult to realize miniaturization.
Summary of the invention
In view of the foregoing, it is necessary to provide one to prevent flexible circuit board off normal, small volume, and easily realize miniaturization Electronic installation.
A kind of ultrasonic sensor, it is used for producing ultrasonic wave energy, and this ultrasonic sensor includes substrate, flexible circuit board And it being respectively arranged at signal receiving element and the signal sending element of these substrate both sides, this signal receiving element includes stacking gradually The first piezoelectric layer, the first electrode layer and the first protective layer arranged, the first protective layer end is through offers connecting hole for this, and this is even Connect hole can the part of this first electrode layer exposed, this flexible circuit board includes the first connecting portion of ledge structure, and this is first years old Connecting portion includes that the side of one end of first end and this first end extends and forms the second end, this first end and this substrate Spaced and parallel setting, and it is convexly equipped with the first conductive part being connected with this electrical property of substrate, this second end and this first protection interlayer Every be arrangeding in parallel, this second end is to being convexly equipped with the second conductive part by connecting hole, and this second conductive part is through this connecting hole and is somebody's turn to do First electrode layer is electrically connected with.
A kind of electronic installation, it includes pressing plate and fits in the ultrasonic sensor of this pressing plate side, this supersonic sensing Device includes substrate, flexible circuit board and the signal receiving element being arranged at these substrate both sides and signal sending element, and this signal connects Receiving the first piezoelectric layer, the first electrode layer and the first protective layer that element includes being cascading, this first protective layer end is passed through Open up and be provided with connecting hole, this connecting hole can the part of this first electrode layer exposed, this flexible circuit board includes ledge structure The first connecting portion, this first connecting portion include one end of first end and this first end side extend formed the second end Portion, this first end and the spaced and parallel setting of this substrate, and it is convexly equipped with the first conductive part being connected with this electrical property of substrate, this is second years old End and this spaced and parallel setting of the first protective layer, this second end is to being convexly equipped with the second conductive part by connecting hole, and this is second years old Conductive part is electrically connected with this first electrode layer through this connecting hole.
The electronic installation of the present invention has ultrasonic sensor, due to this flexible circuit board the first connecting portion and substrate and The spaced and parallel setting of signal receiving element, the first connecting portion of flexible circuit board will not be at space inner bending fold, so that soft First connecting portion of circuit board will not promote the first conductive part and the second conductive part, thus is effectively prevented the first conductive part and The problem of two conductive part off normals.Further, since the first connecting portion of flexible circuit board will not be at space inner bending fold, so that empty Between space can less design, thus ultrasonic sensor compact conformation, and then easily realize the miniaturization of electronic installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of electronic installation of the prior art.
Fig. 2 is the structural representation of electronic installation provided by the present invention.
Fig. 3 is the decomposing schematic representation of the pressing plate of the electronic installation shown in Fig. 2, signal receiving element and substrate.
Fig. 4 is substrate and the decomposing schematic representation of signal sending element of the electronic installation shown in Fig. 2.
Main element symbol description
Electronic installation 100、200
TFT substrate 201
Signal sending element 203、35
Tack coat 202
Signal receiving element 205、33
Flexible circuit board 206、37
Connect end 207
Conductive part 208
Space 210、39
Pressing plate 10
Ultrasonic sensor 30
Substrate 31
First surface 311
First installed surface 3112
Second installed surface 3113
Second surface 313
Image element circuit 315
Pixel input electrode 317
First piezoelectric layer 331
First electrode layer 332
First protective layer 335
Connecting hole 3351
Second piezoelectric layer 351
The second electrode lay 353
3rd electrode layer 355
Second protective layer 357
3rd protective layer 359
First connecting portion 371
First end 375
First conductive part 3751
The second end 377
Second conductive part 3771
Second connecting portion 373
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Accompanying drawing is coordinated to be described in detail below by way of specific embodiment.
Please refer to Fig. 2, the electronic installation 100 that the present invention provides includes pressing plate 10 and fits in surpassing on this pressing plate 10 Sonic sensor 30.Electronic installation 100 has the electronic installation of ultrasonic sensor, such as, mobile phone, panel computer, wrist-watch etc. Electronic installation.
In present embodiment, the substantially rectangular tabular of pressing plate 10, pressing plate 10 is for can be acoustically coupled to ultrasonic sensor Any suitable material of the receptor of 30, in present embodiment, pressing plate 10 material is glass.In present embodiment, pressing plate 10 is Cover plate, such as, be used for cover glass or the protection glass etc. of display.
Being appreciated that in other embodiments, pressing plate 10 can be plastics, pottery, sapphire, metal (such as, aluminum, no Rust steel etc.), metal alloy (such as, almag etc.), composite, plastic film (such as, polymetylmethacrylate, Polyethersulfone resin PES, polyethylene terephtalate, PEN PEN, polycarbonate, poly-ammonia Carbamate PU etc.), metal filled formula polymer and, Merlon, use according to the actual requirements.When needed can be via (such as) the relatively thick pressing plate 10 of 1mm or more than 1mm performs detection and imaging.In other embodiments, for electronics The housing of device 100 or shell may act as pressing plate 10.In other embodiments, the back of mobile device case, side or above May act as pressing plate 10, the ultrasonic sensor 30 of the present invention can be directly via case wall imaged fingerprint or collection biometric letter Breath.In other embodiments, such as polyurethane thin layer, acrylic acid, the coating of Parylene or diamond-like coating (DLC) can Serve as pressing plate 10.
Ultrasonic sensor 30 fits in the side of this pressing plate 10, and it includes that substrate 31, signal receiving element 33, signal are sent out Send element 35 and flexible circuit board 37.
Please refer to Fig. 2 and Fig. 3, substrate 31 is thin substrate, such as glass or plastic.In present embodiment, base Plate 31 is TFT substrate.In other embodiments, substrate 31 is silicon, monocrystal silicon or other semi-conducting material, such as silicon wafer or exhausted Silicon wafer on edge body.Substrate 31 includes first surface 311 and the second surface 313 being oppositely arranged.This first surface 311 is towards this Pressing plate 10 is arranged, and this second surface 313 deviates from this pressing plate 10 and arranges.This first surface 311 is formed with the battle array of image element circuit 315 Row.Each image element circuit 315 includes and the pixel input electrode 317 of this signal receiving element 33 electric coupling.This first surface 311 The first installed surface 3112 and the second installed surface 3113 can be divided into.First installed surface 3112 is used for signal receiving element 33 of fitting, the Two installed surfaces 3113 are used for connecting flexible circuit board 37.
Signal receiving element 33 is arranged at the first installed surface 3112 of this substrate 31, and is coupled to the pixel electricity of this substrate 31 The pixel input electrode 317 on road 315.Signal receiving element 33 includes that first piezoelectric layer the 331, first electrode layer 332 and first is protected Sheath 335.
First piezoelectric layer 331 covers the first installed surface 3112 fitting in this substrate 31 by binding agent (not shown), and It is electrically coupled to the pixel input electrode 317 of image element circuit 315, so that the electric charge that the first piezoelectric layer 331 produces is converted into the signal of telecommunication. The ultrasonic wave energy reflected from the exposed surface of pressing plate 10 can be converted into partial charge by the first piezoelectric layer 331.Pixel input electricity This partial charge can be collected in pole 317, and by charge transfer to underlying pixel data circuit 315.Image element circuit 315 can amplify this electric charge and Output signal from image element circuit 315 can be sent to the sensor controller for signal processing or other circuit.
First electrode layer 332 is formed at first piezoelectric layer 331 side away from this substrate 31.In present embodiment, this is years old The material of one electrode layer 332 is silver.It is appreciated that the first electrode layer 332 can include that one layer or more aluminum, aluminium alloy, copper, copper close Gold, copper and nickel, gold, platinum and gold, chromium and gold, chromium and aluminum, chromium and copper, chromium-copper and gold, silver, indium tin oxide (ITO) or other lead Electroxidation thing, silver and polyether polyols with reduced unsaturation or other suitable conductive material.It is also to be understood that the material of the first electrode layer 332 is Conductive ink, conductive epoxy resin, ink-jet metal and conductive adhesive etc..
First protective layer 335 is formed at this first electrode layer 332 and deviates from the side of this first piezoelectric layer 331, should with protection First electrode layer 332.The first protective layer 335 one end is through offers connecting hole 3351 for this.One of this first electrode layer 332 Point by this, connecting hole 3351 is naked is exposed on the external.
Please refer to Fig. 2 and Fig. 4, signal sending element 35 fits in the second surface of this substrate 31 by binding agent 313.This signal sending element 35 includes the second piezoelectric layer 351, the second electrode lay the 353, the 3rd electrode layer 355, the second protective layer 357 and the 3rd protective layer 359.
Second piezoelectric layer 351 is positioned at below the second surface 313 of substrate 31, the second electrode lay 353 and the 3rd electrode layer 355 Fit in the relative both sides of this second piezoelectric layer 351 respectively.Specifically, this second piezoelectric layer 351 is located in this second electrode Between layer 353 and the 3rd electrode layer 355, such as, this second electrode lay 353 is respectively coated in this with the 3rd electrode layer 355 Second piezoelectric layer 351 2 surface.This second electrode lay 353 is located at this second piezoelectric layer 351 side away from this substrate 31, and this is years old Three electrode layers 355 are located between this second piezoelectric layer 351 and this substrate 31.In present embodiment, the second electrode lay 353 and the 3rd Electrode layer 355 can be metallization or otherwise conductive electrode, such as, is coated with the metal level of the both sides of the second piezoelectric layer 351. In present embodiment, the material of this second electrode lay 353 and the 3rd electrode layer 355 is silver.It is appreciated that this second electrode lay 353 can also include one layer or more aluminum, aluminium alloy, copper, copper alloy, copper and nickel, gold, platinum and gold, chromium with the 3rd electrode layer 355 And gold, chromium and aluminum, chromium and copper, chromium-copper and gold, silver, indium tin oxide (ITO) or other conductive oxide, silver and polyurethane polymerization Thing or other suitable conductive material.The material being appreciated that the first electrode layer 332 is conductive ink, conductive epoxy resin, ink Injecting type metal and conductive adhesive etc..
The outboard cover of this second electrode lay 353 is provided with the second protective layer 357, the second protective layer 357 be used for protecting this second Electrode layer 353.The outboard cover of the 3rd electrode layer 355 is provided with the 3rd protective layer 359, the 3rd protective layer 359 be used for protecting this Three electrode layers 355.3rd protective layer 359 is between this substrate 31 and the 3rd electrode layer 355, and is fitted in by binding agent The second surface 313 of this substrate 31, so that whole signal sending element 35 fits in the second table of this substrate 31 by adhesive layer Face 313.
Signal sending element 35 produces ultrasound wave and depends on applied signal, applies voltage to piezoelectric layer and with extension or receives Contract described layer, produces plane wave whereby.The second pressure can be applied a voltage to via the second electrode lay 353 and the 3rd electrode layer 355 Electric layer 351.In this way, ultrasound wave can be produced by extension or contraction the second piezoelectric layer 351.This ultrasound wave can be towards finger (or other object to be detected) advances, and through pressing plate 10.The part not absorbed by object to be detected or launching of this ultrasound wave Can be reflected, in order to pass back through pressing plate 10 and received by signal receiving element 33.
This flexible circuit board 37 is electrically connected with this signal sending element 35, this substrate 31 and this signal receiving element 33. This flexible circuit board 37 includes the first connecting portion 371 and is extended the second connecting portion formed by one end of the first connecting portion 371 373.First connecting portion 371 is positioned at the top of this signal receiving element 33, and with this spaced and parallel setting of the first protective layer 335. First connecting portion 371 is substantially in ledge structure, and it includes first end 375 and is extended by the side of one end of first end 375 Form the second end 377.The width of the second end 377 is less than the width of first end 375, and the length of the second end 377 is big Length in first end 375.First end 375 is positioned at above the second installed surface 3113 of this substrate 31, and with this second peace The spaced and parallel setting in dress face 3113.This first end 375 is convexly equipped with the first conductive part 3751 towards this second installed surface 3113, should First conductive part 3751 is electrical with the image element circuit 315 of the second installed surface 3113 of this substrate 31 by conductive adhesive film (not shown) Connect.The second end 377 extends to above this first protective layer 335, and with the first spaced and parallel setting of protective layer 335.Second End 377 is to the position of connecting hole 3351 being convexly equipped with the second conductive part 3771, and one end of the second conductive part 3771 houses In this connecting hole 3351, and it is electrically connected with this first electrode layer 332 by conductive adhesive film.It is appreciated that the first conductive part 3751 and second conductive part 3771 shape can be circular, square, other shapes such as rectangle.In present embodiment, first leads Electricity portion 3751 and the second conductive part 3771 are copper conductor.It is appreciated that the first conductive part 3751 and the second conductive part 3771 also may be used To be anisotropic conductive film (ACF), electrically conductive ink, electroconductive binder etc..
It is collectively forming a space between first surface the 311, first connecting portion 371 and the signal receiving element 33 of substrate 31 39.Due to the first connecting portion 371 and substrate 31 and the spaced and parallel setting of signal receiving element 33 of this flexible circuit board 37, soft First connecting portion 371 of circuit board 37 will not bend upfold in space 39, so that the first connecting portion of flexible circuit board 37 371 will not promote the first conductive part 3751 and the second conductive part 3771, thus are effectively prevented the first conductive part 3751 and second The problem of conductive part 3771 off normal.Further, since the first connecting portion 371 of flexible circuit board 37 will not bend upwards in space 39 Fold so that the space in space 39 can less design, thus the compact conformation of ultrasonic sensor 30, and then easily realize electricity The miniaturization of sub-device 100.Further, upwards pleat will not be bent in space 39 due to the first connecting portion 371 of flexible circuit board 37 Wrinkle, so that flexible circuit board 37 will not extrude the element below the first connecting portion 371 of substrate 31 flexible circuit board such as grade 37, thus Guarantee that the normal of the element below the first connecting portion 371 of flexible circuit board 37 works.
It is appreciated that the size of the second conductive part 3771, and the connecting hole matched with this second conductive part 3771 The size of 3351 changes design according to the size of ultrasonic sensor 30 and the requirement of performance.It is appreciated that connecting hole 3351 Size and dimension change design according to the size and dimension of the second conductive part 3771 of flexible circuit board 37.It is appreciated that The second end 377 of flexible circuit board 37 can extend to whole first protective layer 335, to cover whole first protective layer 335 Deviate from a surface of this first electrode layer 332.
Second connecting portion 373 of this flexible circuit board 37 by the first end 375 of this first connecting portion 371 away from this second One end of end 377 extends and is formed.Second connecting portion 373 is by the second electricity of wire (not shown) with this signal sending element 35 Pole layer 353 and the 3rd electrode layer 355 are electrically connected with.
The further packet controller (not shown) of electronic installation 100, this controller passes through flexible circuit board 37 and the second electrode Image element circuit 315 on layer the 353, the 3rd electrode layer the 355, first electrode layer 332 and substrate 31 is electrically connected with.
This ultrasonic sensor 30, when real work, applies electricity to this second electrode lay 353 and the 3rd electrode layer 355 Pressure, makes this second piezoelectric layer 351 vibrate and launch ultrasound wave.The ultrasound wave that signal sending element 35 produces receives unit through signal It is outside that part 33 is exposed to pressing plate 10.In the surface exposing outside to the open air of pressing plate 10, it is right that ultrasonic wave energy may be contacted with pressing plate 10 As (such as, the skin of fingerprint ridge line) launches, absorbs or disperse, or it is reflected back toward.Outside is exposed to the open air at air contact pressing plate 10 Surface those positions (such as, the recess between fingerprint ridge line) in, major part ultrasound wave will be reflected back toward and connect towards signal Receive element 33 for detecting.Controller can be coupled to signal sending element 35 and signal receiving element 33, and can supply Signal sending element 35 is made to produce the timing signal of one or more ultrasound wave.Controller then can connect from signal receiving element 33 Receive instruction and be reflected the signal of ultrasonic wave energy.Controller can use the output signal received from signal receiving element 33 to carry out construction pair The digitized video of elephant.
The electronic installation 100 of the present invention has ultrasonic sensor 30, due to the first connecting portion of this flexible circuit board 37 371 with substrate 31 and the spaced and parallel setting of signal receiving element 33, the first connecting portion 371 of flexible circuit board 37 will not be in space 39 bending upfolds, so that the first connecting portion 371 of flexible circuit board 37 will not promote the first conductive part 3751 and second to lead Electricity portion 3771, thus it is effectively prevented the first conductive part 3751 and problem of the second conductive part 3771 off normal.Further, since it is soft First connecting portion 371 of circuit board 37 will not bend upfold in space 39 so that the space in space 39 can less design, Thus the compact conformation of ultrasonic sensor 30, and then easily realize the miniaturization of electronic installation 100.Further, due to soft electricity First connecting portion 371 of road plate 37 will not bend upfold in space 39, so that the first connecting portion 371 of flexible circuit board 37 The element below the first connecting portion 371 of substrate 31 flexible circuit board such as grade 37 will not be extruded, so that it is guaranteed that flexible circuit board 37 times The normal work of the element of side.
Certainly, the invention is not limited in embodiment disclosed above, the present invention can also is that and carries out above-described embodiment Various changes.As long as those skilled in the art is appreciated that in the spirit of the present invention, to above example institute That makees suitably changes and changes all to fall in the scope of protection of present invention.

Claims (10)

1. a ultrasonic sensor, it is used for producing ultrasonic wave energy, this ultrasonic sensor include substrate, flexible circuit board and Being respectively arranged at signal receiving element and the signal sending element of these substrate both sides, this signal receiving element includes stacking gradually and sets The first piezoelectric layer, the first electrode layer and the first protective layer put, it is characterised in that this through company of offering in the first protective layer end Connect hole, this connecting hole can the part of this first electrode layer exposed, this flexible circuit board includes the first connection of ledge structure Portion, this first connecting portion includes that the side of one end of first end and this first end extends and forms the second end, this first end Portion and the spaced and parallel setting of this substrate, and be convexly equipped with the first conductive part being connected with this electrical property of substrate, this second end with this The one spaced and parallel setting of protective layer, this second end is to being convexly equipped with the second conductive part by connecting hole, and this second conductive part is through being somebody's turn to do Connecting hole is electrically connected with this first electrode layer.
2. ultrasonic sensor as claimed in claim 1, it is characterised in that this flexible circuit board also includes first being connected by this The one end in portion extends the second connecting portion formed, and this second connecting portion is electrically connected with this signal sending element.
3. ultrasonic sensor as claimed in claim 1, it is characterised in that this signal sending element include the second piezoelectric layer, The second electrode lay, the 3rd electrode layer, this second piezoelectric layer is located between this second electrode lay and the 3rd electrode layer, and the 3rd Electrode layer is located between this second piezoelectric layer and this substrate, this second electrode lay and the 3rd electrode layer respectively with this soft electricity Second connecting portion of road plate is electrically connected with.
4. ultrasonic sensor as claimed in claim 1, it is characterised in that this substrate include the first surface that is oppositely arranged and Second surface, this first surface includes the first installed surface and the second installed surface, this signal receiving element cover fit in this first Installed surface, the first conductive part of this flexible circuit board is electrically connected with this second installed surface, and this signal sending element fits in this Second surface.
5. ultrasonic sensor as claimed in claim 4, it is characterised in that this first surface is formed with the battle array of image element circuit Row, each image element circuit includes pixel input electrode, this pixel input electrode and this signal receiving element electric coupling.
6. ultrasonic sensor as claimed in claim 1, it is characterised in that this signal sending element also includes the second protective layer And the 3rd protective layer, the outboard cover of this second electrode lay is provided with this second protective layer, and the outboard cover of the 3rd electrode layer is provided with this 3rd protective layer.
7. an electronic installation, it includes pressing plate and fits in the ultrasonic sensor of this pressing plate side, this ultrasonic sensor Including substrate, flexible circuit board and the signal receiving element being arranged at these substrate both sides and signal sending element, this signal receives Element includes the first piezoelectric layer, the first electrode layer and the first protective layer being cascading, it is characterised in that this first protection End is through offers connecting hole for layer, this connecting hole can the part of this first electrode layer exposed, this flexible circuit board includes First connecting portion of ledge structure, this first connecting portion includes that the side of one end of first end and this first end extends and is formed The second end, this first end and the spaced and parallel setting of this substrate, and it is convexly equipped with the first conductive part being connected with this electrical property of substrate, This second end and this spaced and parallel setting of the first protective layer, this second end to being convexly equipped with the second conductive part by connecting hole, This second conductive part is electrically connected with this first electrode layer through this connecting hole.
8. electronic installation as claimed in claim 7, it is characterised in that this flexible circuit board also includes by this first connecting portion One end extends the second connecting portion formed, and this second connecting portion is electrically connected with this signal sending element.
9. electronic installation as claimed in claim 7, it is characterised in that this signal sending element include the second piezoelectric layer, second Electrode layer, the 3rd electrode layer, this second piezoelectric layer is located between this second electrode lay and the 3rd electrode layer, the 3rd electrode Layer is located between this second piezoelectric layer and this substrate, this second electrode lay and the 3rd electrode layer respectively with this flexible circuit board Second connecting portion be electrically connected with.
10. electronic installation as claimed in claim 7, it is characterised in that this substrate includes the first surface that is oppositely arranged and the Two surfaces, this first surface includes the first installed surface and the second installed surface, and this signal receiving element covers and fits in this first peace Dress face, the first conductive part of this flexible circuit board and this second installed surface be electrically connected with, this signal sending element fit in this Two surfaces.
CN201610636877.9A 2016-08-06 2016-08-06 Ultrasonic sensor and electronic device with the ultrasonic sensor Active CN106332448B (en)

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TW105125587A TWI644083B (en) 2016-08-06 2016-08-11 Ultrasonic sensor and electronic device

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CN106874853A (en) * 2017-01-16 2017-06-20 麦克思商务咨询(深圳)有限公司 Sound wave type fingerprint identification device and preparation method thereof and apply its electronic installation
CN106886333A (en) * 2017-01-13 2017-06-23 麦克思商务咨询(深圳)有限公司 Sensing device further
CN106886335A (en) * 2017-01-16 2017-06-23 麦克思商务咨询(深圳)有限公司 Ultrasonic sensor and electronic installation
CN106886753A (en) * 2017-01-16 2017-06-23 麦克思商务咨询(深圳)有限公司 Sound wave type fingerprint identification device application its electronic installation
CN109492481A (en) * 2017-09-12 2019-03-19 南昌欧菲生物识别技术有限公司 Ultrasonic sensor and electronic device
CN109948496A (en) * 2019-03-12 2019-06-28 京东方科技集团股份有限公司 A kind of fingerprint recognition device and display device
CN110245629A (en) * 2019-06-19 2019-09-17 业成科技(成都)有限公司 Electronic device and its manufacturing method
CN111460904A (en) * 2020-03-05 2020-07-28 南昌欧菲生物识别技术有限公司 Ultrasonic detection module, detection method and device thereof and electronic equipment
CN112869773A (en) * 2019-11-29 2021-06-01 哈尔滨工业大学 Flexible ultrasonic sensor and arterial blood pressure detection method thereof

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