CN209729904U - Heart rate sensor encapsulating structure and electronic equipment - Google Patents

Heart rate sensor encapsulating structure and electronic equipment Download PDF

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Publication number
CN209729904U
CN209729904U CN201920787565.7U CN201920787565U CN209729904U CN 209729904 U CN209729904 U CN 209729904U CN 201920787565 U CN201920787565 U CN 201920787565U CN 209729904 U CN209729904 U CN 209729904U
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CN
China
Prior art keywords
heart rate
rate sensor
photodiode
encapsulating structure
accommodating space
Prior art date
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Active
Application number
CN201920787565.7U
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Chinese (zh)
Inventor
陶源
田德文
宋青林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Geer Microelectronics Research Institute Co Ltd
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Qingdao Geer Microelectronics Research Institute Co Ltd
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Priority to CN201920787565.7U priority Critical patent/CN209729904U/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48225Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/48227Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/181Encapsulation
    • H01L2924/1815Shape

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  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

The utility model discloses a kind of heart rate sensor encapsulating structure and electronic equipments, the heart rate sensor encapsulating structure includes substrate, is electrically connected with the substrate respectively by conducting wire set on the photodiode and signal processing chip of the substrate opposite sides, the photodiode and the signal processing chip;Surface of the substrate far from the photodiode is recessed to form the first accommodating space to close to the photodiode direction, and the signal processing chip is set in first accommodating space.Heart rate sensor encapsulating structure production process provided by the utility model is simple.

Description

Heart rate sensor encapsulating structure and electronic equipment
Technical field
The utility model relates to electroacoustic switch technology fields more particularly to a kind of heart rate sensor encapsulating structure and electronics to set It is standby.
Background technique
With the improvement of living standards, more and more common people pass through heart rate equipment detecting/monitoring heart rate, to realize body The monitoring of situation.Existing electronic equipment over-borrowing helps photoelectric technology acquisition pulse wave to carry out monitor heart rate, and electronic equipment includes carrying out The signal collected signal processing chip (AFE) of the photodiode (PD) and processing photodiode of photoinduction.Due to photoelectricity One PN junction of diode master (PN junction) device, one end are to carry out the photoinduction end of photoinduction, and other end end is back Gold solder disk, and signal processing chip is to be connected using wire bonding (Wire Bonding, WB).Make at photodiode and signal Reason chip cannot directly carry out stacking setting, need through silicon pinboard (Si Interposer), viscous brilliant gummed paper (Film on Wire, FOW) etc. realize that photodiode and signal processing chip are electrically connected, increase assembling difficulty and production cost.
Therefore, it is necessary to provide a kind of novel heart rate sensor encapsulating structure, to solve the above technical problems.
Utility model content
The main purpose of the utility model is to provide a kind of heart rate sensor encapsulating structure and electronic equipments, it is intended to solve In existing electronic equipment, need to realize that photodiode and signal processing chip are electrically connected by silicon pinboard, viscous brilliant gummed paper etc., The technical issues of assembling big difficulty and high production cost.
To achieve the above object, heart rate sensor encapsulating structure provided by the utility model includes substrate, is set to the base The photodiode and signal processing chip of plate opposite sides, the photodiode and the signal processing chip pass through respectively Conducting wire is electrically connected with the substrate;Surface of the substrate far from the photodiode is to close to the photodiode direction Recess forms the first accommodating space, and the signal processing chip is set in first accommodating space.
Preferably, the first insulating layer is filled in first accommodating space, first insulating layer encapsulates at the signal Reason chip and the conducting wire being connect with the signal processing chip.
Preferably, the photodiode includes photoinduction end and electric connecting terminal, and the photoinduction end passes through the conducting wire It is electrically connected with the substrate, the electric connecting terminal is directly electrically connected with the substrate.
Preferably, the thickness of first insulating layer is less than or equal to the depth of first accommodating space.
Preferably, the heart rate sensor encapsulating structure further includes second insulating layer, described in the second insulating layer package Photodiode and the conducting wire being connect with the photodiode, surface of the second insulating layer far from the photodiode It is recessed to form the second accommodating space to close to the photodiode direction, it is empty that the photoinduction end is exposed to second receiving Between and towards the opening of second accommodating space.
Preferably, the heart rate sensor encapsulating structure further includes the light transmitting sheet in second accommodating space, institute Light transmitting sheet is stated to be covered on the photoinduction end.
Preferably, along the entering light direction of second accommodating space, the cross-sectional area of second accommodating space gradually subtracts It is small.
Preferably, the substrate includes ontology, is set to the intrinsic conducting wire and the multiple and conducting wire The conductive site of electrical connection, the conduction site expose to the ontology, and the conduction site is used for and the conducting wire and outside Circuit electrical connection.
Preferably, the conductive site is distributed around first accommodating space.
The utility model additionally provides a kind of electronic equipment, including shell and heart rate sensor encapsulating structure above-mentioned;Institute State that loophole is offered on shell is corresponding with the photodiode.
In the technical solution of the utility model, by opening up the first accommodating space on substrate, so that at signal Reason chip is mountable to be electrically connected in the first accommodating space and with substrate, by setting up signal processing chip and photodiode separately With substrate two sides, so that signal processing chip and photodiode can be electrically connected with substrate respectively by way of stacking, and save It goes using the conduct pieces such as silicon pinboard, viscous brilliant gummed paper, save the cost, while simplifying preparation section.It, will in compared to the prior art In on substrate, the utility model provides heart rate sensor encapsulating structure for photodiode and the direct tiled arrangements of signal processing chip Planar dimension is smaller, convenient for the Miniaturization Design of product.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is heart rate sensor encapsulating structure the schematic diagram of the section structure in the prior art.
Embodiment drawing reference numeral explanation:
Label Title Label Title
100 Heart rate sensor encapsulating structure 1 Substrate
11 Ontology 12 First accommodating space
13 Conducting wire 15 Conductive site
3 Photodiode 31 Photoinduction end
33 Electric connecting terminal 5 Signal processing chip
7 Conducting wire 8 First insulating layer
9 Second insulating layer 92 Second accommodating space
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Below in conjunction with the attached drawing in the present embodiment, the technical solution in the present embodiment is clearly and completely described, Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on this reality It is obtained by those of ordinary skill in the art without making creative efforts every other with the embodiment in novel Embodiment is fallen within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used for solving in the present embodiment It releases in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if this is specific When posture changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the One ", the feature of " second " can explicitly or implicitly include at least one of the features.It is " more in the description of the present invention, It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral;It can be mechanical connection, it can also To be electrical connection;It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
It in addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability Based on domain those of ordinary skill can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve The combination of this technical solution is not present, also not within the protection scope of the requires of the utility model.It should be appreciated that this place is retouched The specific embodiment stated is only used to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, heart rate sensor encapsulating structure 100 provided by the utility model includes substrate 1, is set to the substrate The photodiode 3 and signal processing chip 5 of 1 opposite sides, the photodiode 3 and the signal processing chip 5 are distinguished It is electrically connected by conducting wire 7 with the substrate 1;Surface of the substrate 1 far from the photodiode 3 is to close to the photoelectricity two 3 direction of pole pipe is recessed to form the first accommodating space 12, and the signal processing chip 5 is set in first accommodating space 12.
Specifically, photodiode 3 includes photoinduction end 31 and electric connecting terminal 33, and photoinduction end 31 detects that ambient light is believed Number, the optical signal received is converted into electric signal by photodiode 3, is transferred to by electric connecting terminal 33, conducting wire 7 and substrate 1 The electric signal received is handled and is transferred to external display device or signal by signal processing chip 5, signal processing chip 5 The electronic components such as sending device, the secondary operation such as to be shown, analyzed using the electric signal.The utility model by The first accommodating space 12 is opened up on substrate 1, so that signal processing chip 5 is mountable in the first accommodating space 12 and and base Plate 1 be electrically connected, by by signal processing chip 5 and photodiode 3 set up separately with 1 two sides of substrate so that 5 He of signal processing chip Photodiode 3 can be electrically connected with substrate 1 respectively by way of stacking, and eliminated the need for silicon pinboard, viscous brilliant gummed paper etc. and led Electric part, save the cost, while simplifying preparation section.In compared to the prior art, by photodiode 3 and signal processing chip 5 For direct tiled arrangements on substrate 1, the utility model offer 100 planar dimension of heart rate sensor encapsulating structure is smaller, convenient for producing The Miniaturization Design of product.
Further, the first insulating layer 8 is filled in first accommodating space 12, the first insulating layer 8 encapsulates the signal Processing chip 5 and the conducting wire 7 being connect with the signal processing chip 5.By filling first in first accommodating space 12 absolutely The conducting wire 7 that edge layer 8 encapsulates the signal processing chip 5 and connect with the signal processing chip 5.To can avoid sensing heart rate Conducting wire 7 is collapsed or breaks during device encapsulating structure 100 is reprocessed or in use process, influences product quality and service life.
Still further, the thickness of first insulating layer 8 is less than or equal to the depth of first accommodating space 12. The measurement direction of the thickness of first insulating layer 8, the measurement direction of the depth of the first accommodating space 12 are with the thickness of parallel substrate 1 Direction is reference system.The thickness that the first insulating layer 8 is arranged is less than or equal to the depth of first accommodating space 12, is at signal Reason chip 5 and the conducting wire 7 being electrically connected with signal processing chip 5 prop up space, are conducive to be further ensured that conducting wire 7 and signal processing The stability that chip 5 connects.
In one embodiment, the photodiode 3 includes photoinduction end 31 and electric connecting terminal 33, the photoinduction end 31 It is connect by the conducting wire 7 with the substrate 1, the electric connecting terminal 33 is directly electrically connected with the substrate 1.In the present embodiment In, electric connecting terminal 33 is back gold solder disk.It is directly electrically connected with the substrate 1 by the electric connecting terminal 33, to eliminate the need for The conduct pieces such as silicon pinboard, viscous brilliant gummed paper, save the cost.
In one embodiment, the heart rate sensor encapsulating structure 100 further includes second insulating layer 9, second insulation The conducting wire 79 package of layer the photodiode 3 and connect with the photodiode 3, the second insulating layer 9 is far from described The surface of photodiode 3 is recessed to form the second accommodating space 92 to close to 3 direction of photodiode, the photoinduction end 31 are exposed to second accommodating space 92 and towards the opening of second accommodating space 92.Second insulating layer 9 specifically can be with Material identical as 8 use of the first insulating layer or different materials are made.In the present embodiment, first insulating layer 8 and described Two insulating layers 9 are gluing process machine-shaping structure.Second insulating layer 9 wrap up the photodiode 3 and with the photoelectricity two Pole pipe 3 connect conducting wire 7, thus can avoid heart rate sensor encapsulating structure 100 reprocess during or use process in conducting wire 7 It is collapsed or breaks, influence product quality and service life.Second accommodating space is exposed to by the way that the photoinduction end 31 is arranged 92 and towards the opening of second accommodating space 92, to guarantee that photoinduction end 31 can effectively receive external optical signals.
Further, the heart rate sensor encapsulating structure 100 further includes saturating in second accommodating space 92 Mating plate, the light transmitting sheet cover the photoinduction end 31.Specifically, light transmitting sheet is made of translucent material, specifically can be glass Light transmitting sheet, plastic light-transmission piece etc., those skilled in the art can according to need the light transmitting sheet of selection suitable material.
Still further, along the entering light direction of second accommodating space 92, the cross section of second accommodating space 92 Product is gradually reduced.That is the second accommodating space 92 be it is horn-like, light-inletting quantity and entering light angle can be increased.
In one embodiment, the substrate 1 includes ontology 11, the conducting wire 13 in the ontology 11 and multiple The conductive site 15 being electrically connected with the conducting wire 13, the conduction site 15 expose to the ontology 11, the conductive bit Point 15 with the conducting wire 7 and external circuit for being electrically connected.Conducting wire 7 includes that the diode connecting with the photodiode 3 is led Line 7 and the chip conducting wire 7 connecting with signal processing chip 5 are led in the present embodiment with what the diode wire 7 was connect Potential point 15 exposes to the substrate 1 close to the outer surface of the photodiode 3, the conduction connecting with the chip conducting wire 7 Site 15 exposes to the bottom surface of second accommodating space 92, and the conductive site 15 for being electrically connected with external circuit exposes to institute State outer surface of the substrate 1 far from the photodiode 3.
In another embodiment, the conductive site 15 is distributed around first accommodating space 12.By surrounding first Accommodating space 12 is arranged, to can avoid corresponding 1 thinner thickness of substrate of the first accommodating space 12, difficulty of processing is big, after processing The technical issues of structural instability.
The utility model additionally provides a kind of electronic equipment, including shell (not shown) and heart rate sensor above-mentioned encapsulation It is corresponding with the photodiode 5 to offer loophole on the shell for structure 100.External optical signal is penetrated by loophole On photodiode 5.Since the electronic equipment includes the entire infrastructure of aforementioned heart rate sensor encapsulating structure 100, correspondingly, All beneficial effects with aforementioned heart rate sensor encapsulating structure, details are not described herein.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims (10)

1. a kind of heart rate sensor encapsulating structure, which is characterized in that including substrate, set on the photoelectricity two of the substrate opposite sides Pole pipe and signal processing chip, the photodiode and the signal processing chip pass through conducting wire respectively and are electrically connected with the substrate It connects;Surface of the substrate far from the photodiode to form the first receiving sky to being recessed close to the photodiode direction Between, the signal processing chip is set in first accommodating space.
2. heart rate sensor encapsulating structure according to claim 1, which is characterized in that filling in first accommodating space First insulating layer, the conducting wire that first insulating layer encapsulates the signal processing chip and connect with the signal processing chip.
3. heart rate sensor encapsulating structure according to claim 2, which is characterized in that the thickness of first insulating layer is small In or equal to first accommodating space depth.
4. heart rate sensor encapsulating structure according to claim 1, which is characterized in that the photodiode includes light sensation It should hold and electric connecting terminal, the photoinduction end are electrically connected with the substrate by the conducting wire, the electric connecting terminal is directly and institute State substrate electrical connection.
5. heart rate sensor encapsulating structure according to claim 4, which is characterized in that the heart rate sensor encapsulating structure It further include second insulating layer, the second insulating layer is wrapped up the photodiode and led with what the photodiode was connect Line, surface of the second insulating layer far from the photodiode are recessed to form second to close to the photodiode direction Accommodating space, the photoinduction end are exposed to second accommodating space and towards the openings of second accommodating space.
6. heart rate sensor encapsulating structure according to claim 5, which is characterized in that the heart rate sensor encapsulating structure It further include the light transmitting sheet in second accommodating space, the light transmitting sheet is covered on the photoinduction end.
7. heart rate sensor encapsulating structure according to claim 6, which is characterized in that along second accommodating space into The cross-sectional area of light direction, second accommodating space is gradually reduced.
8. heart rate sensor encapsulating structure according to any one of claim 1 to 7, which is characterized in that the substrate packet Include ontology, set on the intrinsic conducting wire and multiple conductive sites being electrically connected with the conducting wire, the conduction Site exposes to the ontology, and the conduction site with the conducting wire and external circuit for being electrically connected.
9. heart rate sensor encapsulating structure according to claim 8, which is characterized in that the conduction site is around described the The distribution of one accommodating space.
10. a kind of electronic equipment, which is characterized in that including heart rate sensor described in shell and any one of claims 1 to 9 Encapsulating structure;It is corresponding with the photodiode that loophole is offered on the shell.
CN201920787565.7U 2019-05-28 2019-05-28 Heart rate sensor encapsulating structure and electronic equipment Active CN209729904U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920787565.7U CN209729904U (en) 2019-05-28 2019-05-28 Heart rate sensor encapsulating structure and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920787565.7U CN209729904U (en) 2019-05-28 2019-05-28 Heart rate sensor encapsulating structure and electronic equipment

Publications (1)

Publication Number Publication Date
CN209729904U true CN209729904U (en) 2019-12-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920787565.7U Active CN209729904U (en) 2019-05-28 2019-05-28 Heart rate sensor encapsulating structure and electronic equipment

Country Status (1)

Country Link
CN (1) CN209729904U (en)

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