CN106206756A - Photosensitive tube and optical filter combined packaging structure and processing technology thereof - Google Patents

Photosensitive tube and optical filter combined packaging structure and processing technology thereof Download PDF

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Publication number
CN106206756A
CN106206756A CN201610874984.5A CN201610874984A CN106206756A CN 106206756 A CN106206756 A CN 106206756A CN 201610874984 A CN201610874984 A CN 201610874984A CN 106206756 A CN106206756 A CN 106206756A
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China
Prior art keywords
pin
optical filter
specific wavelength
photosensitive tube
encapsulating structure
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Application number
CN201610874984.5A
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Chinese (zh)
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CN106206756B (en
Inventor
胡自立
何细雄
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Shenzhen Cgx Optoelectronic Technology Inc
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Shenzhen Cgx Optoelectronic Technology Inc
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02Details
    • H01L31/02002Arrangements for conducting electric current to or from the device in operations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02Details
    • H01L31/0203Containers; Encapsulations, e.g. encapsulation of photodiodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02Details
    • H01L31/0232Optical elements or arrangements associated with the device
    • H01L31/02325Optical elements or arrangements associated with the device the optical elements not being integrated nor being directly associated with the device

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Light Receiving Elements (AREA)

Abstract

The embodiment of the invention is suitable for the technical field of semiconductor packaging, and provides a combined packaging structure of a photosensitive tube and a light filter. The packaging structure comprises a light sensing chip, a lead, a first pin, a second pin, a specific wavelength optical filter and sealant, wherein the first pin is electrically connected with the light sensing chip, the second pin is electrically connected with the light sensing chip through the lead, and the first pin, the second pin and the light sensing chip are packaged through the sealant to form an integrated support; the first pin and the second pin are arranged on the periphery of the sealant in a surrounding mode to form a surface-mounted packaging structure, the inside of the integrated support is provided with a containing cavity, the light sensing chip is contained at the bottom of the containing cavity, and the specific wavelength filter cover is arranged on an opening of the containing cavity. The combined packaging structure of the photosensitive tube and the optical filter can be assembled only by buckling the optical filter with the specific wavelength in the accommodating cavity on the integrated bracket, and has the advantages of simple structure, low cost and high production efficiency.

Description

A kind of photosensitive tube and optical filter combination encapsulating structure and processing technique thereof
Technical field
The invention belongs to technical field of semiconductor encapsulation, particularly relate to a kind of photosensitive tube and optical filter combination encapsulating structure and Its processing technique.
Background technology
In recent years, environmental consciousness has been the common recognition of all mankind.Whole world components and parts supplier progressively develops various replacing For the photosensitive tube material of conventional vulcanized cadmium photoconductive resistance, but major part photosensitive tube material has to rely on inside encapsulation and inlays certain wave The mode of long length filter pipe cap realizes, and the specific wavelength optical filter inlayed in pipe cap is also required to filter specific wavelength on chip It is assigned in pipe cap.This mounting means is only limitted to inline package photosensitive tube material, but for using paster LED lamp bead material Panel, photosensitive tube miniature requirement is the strongest.Between the market demand, each components and parts supplier progressively develops of all kinds Install the mode of specific wavelength optical filter additional.
As shown in Figure 1 to Figure 3, be existing direct insertion photosensitive tube material install additional specific wavelength optical filter assembled package knot Structure schematic diagram. this encapsulating structure is that the wire 4 of light sense chip the 3, first pin the 5, second pin 6 and connection is packaged in colloid 7 In, colloid 7 is socketed in pipe cap 1, and installs specific wavelength optical filter 2 in pipe cap 1, and this structure uses twice combination to add There is the shortcoming that cost of labor is high and production efficiency is low in the mode of dress.
Summary of the invention
Embodiment of the present invention technical problem to be solved is to provide a kind of photosensitive tube to combine encapsulating structure with optical filter And processing technique, it is intended to solve direct insertion photosensitive tube material of the prior art and install the assembled package of specific wavelength optical filter additional The problem that the cost of labor that structure exists is high and production efficiency is low.
The embodiment of the present invention is achieved in that a kind of photosensitive tube of offer combines encapsulating structure with optical filter, and it includes light Sense chip, wire, the first pin, the second pin, specific wavelength optical filter and fluid sealant, described first pin and described light sensation Chip is electrically connected with, and described second pin is electrically connected with described smooth sense chip by described wire, the first pin, the second pin And light sense chip is encapsulated by described fluid sealant, form integrated bracket;Wherein, described first pin and the second pin enclose and are located at The periphery of described fluid sealant, forms SMD encapsulating structure, and being internally formed of described integrated bracket accommodates chamber, described light sensation Chip is contained in the bottom in described receiving chamber, and described specific wavelength optical filter is covered on the opening in described receiving chamber.
Further, the first receiving space and second that described receiving chamber includes being interconnected accommodates space, and described first Accommodating and form a stage portion between space and the second receiving space, a part for described smooth sense chip and described wire is positioned at described First accommodates in space, and described light sensation chip bottom is electrically connected with described first pin, another part encapsulation of described wire In described fluid sealant, described specific wavelength optical filter is embedded in described second and accommodates in space, and is resisted against described stage portion On.
Further, the described first axial cross section accommodating space is bowl shape, and described specific wavelength optical filter is covered on Described first enlarging one end holding space.
Further, it is filled with epoxy resin in described first receiving space.
Further, the described second inwall accommodating space is provided with the card for fixing described specific wavelength optical filter Button.
The embodiment of the present invention additionally provides the processing work of a kind of photosensitive tube as above and optical filter combination encapsulating structure Skill, this processing technique comprises the following steps:
A, by metal stamping, be shaped to the first pin and the second pin;
Welding light sense chip by die bond on b, described first pin, described smooth sense chip is drawn by welding lead and second Foot connects, and then carries out injection parcel by fluid sealant, forms integrated bracket, make described first pin and the second pin enclose and set In the periphery of described fluid sealant, form SMD encapsulating structure, and on described integrated bracket, form receiving chamber, described light Sense chip is positioned at the bottom in described receiving chamber;
C, opening part from described receiving chamber, be pressed into described receiving intracavity by specific wavelength optical filter.
Further, the opening part in described receiving chamber arranges buckle, and described specific wavelength optical filter is pressed into described receiving After intracavity, described specific wavelength optical filter is buckled and is fixed on described receiving intracavity by described buckle.
The embodiment of the present invention compared with prior art, has the beneficial effects that: the first pin in the present invention, the second pin and Light sense chip is packaged as a whole cribbing by fluid sealant, and is internally formed receiving chamber at integrated bracket.Wherein, first Pin, the second pin enclose the periphery being located at integrated bracket, form paster type encapsulation structure, and light sense chip is contained in integral type and props up The bottom of frame, specific wavelength optical filter is covered on the opening accommodating chamber.This encapsulating structure has only to filter specific wavelength on chip Being located on integrated bracket and can complete to assemble, it has simple in construction, advantage easy to assembly, it is to avoid traditional direct insertion light Quick tube material installs that cost of labor that specific wavelength optical filter uses the packaged type of twice combination to exist is high and production efficiency is low additional Problem.
Accompanying drawing explanation
Fig. 1 is that the direct insertion photosensitive tube material that prior art provides installs the assembled package structure of specific wavelength optical filter additional and shows It is intended to;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the decomposition texture schematic diagram of Fig. 1;
Fig. 4 is photosensitive tube and the optical filter encapsulating structure schematic diagram of embodiment of the present invention offer;
Fig. 5 is the plan structure schematic diagram of Fig. 4;
Fig. 6 is the decomposition texture schematic diagram of Fig. 4.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and It is not used in the restriction present invention.
As shown in Figures 4 to 6, it is that photosensitive tube and the optical filter combination encapsulating structure one of the embodiment of the present invention is preferably implemented Example.This photosensitive tube includes light sense chip 11, wire the 12, first pin the 13, second pin 14, spy with optical filter combination encapsulating structure Standing wave long length filter 20 and fluid sealant 15.First pin 13 is electrically connected with light sense chip 11, and the second pin 14 passes through wire 12 are electrically connected with light sense chip 11, and first pin the 13, second pin 14 and light sense chip 11 are encapsulated by fluid sealant 15, are formed Integrated bracket 10.Wherein, the first pin 13 and the second pin 14 enclose the periphery being located at fluid sealant 15, form SMD encapsulation Structure.Being internally formed of integrated bracket 10 accommodates chamber 30, and light sense chip 11 is contained in the bottom accommodating chamber 30, and specific wavelength is filtered Mating plate 20 is covered on the opening accommodating chamber 30.Fluid sealant in the present embodiment uses PPA (poly-terephthalate p-phenylenediamine) plastics Encapsulation.
In above-described embodiment, accommodate the first receiving space 31 and the second receiving space 32 that chamber 30 includes being interconnected, the One accommodates formation one between space 31 and the second receiving space 32 is used for carrying the stage portion 33 of specific wavelength optical filter 20.Light sensation A part for chip 11 and wire 12 is positioned at the first receiving space 31, is welded on first by die bond and draws bottom light sense chip 11 On foot 13 so that it is be electrically connected with the first pin 13;Another part of wire 12 is encapsulated in fluid sealant 15.Specific wavelength filters Sheet 20 is embedded in the second receiving space 32, and is resisted against in stage portion 33.Specific wavelength optical filter 20 in the present embodiment Wave-length coverage is preferably 400~700nm, in other embodiments, can select the wavelength in particular range according to demand.On It is filled with epoxy resin in the first receiving space 31 stated, and its axial cross section is bowl shape, play certain guide-lighting effect. The specific wavelength optical filter 20 being placed in the second receiving space 32 is covered on the enlarging one end in the first appearance space 31, and second The inwall accommodating space 32 is provided with the buckle 320 for fixing specific wavelength optical filter 20.
The embodiment of the present invention additionally provides the processing work of a kind of photosensitive tube as above and optical filter combination encapsulating structure Skill, this processing technique comprises the following steps:
A, by metal stamping, molding the first pin 13 and the second pin 14.
Welding light sense chip 11 by die bond on b, the first pin 13, light sense chip 11 is drawn with second by welding lead 12 Foot 14 connects, and then carries out injection parcel by fluid sealant 15, forms integrated bracket 10, make the first pin 13 and the second pin 14 enclose the periphery being located at fluid sealant 15, form SMD encapsulating structure, and form receiving chamber 30, light on integrated bracket 10 Sense chip 11 is positioned at the bottom accommodating chamber 30.
C, accommodate chamber 30 opening part buckle 320 is set, from accommodate chamber 30 opening specific wavelength optical filter 20 is pressed Enter in the second receiving space 32, and fixed by buckle 320.
In sum, the photosensitive tube of the embodiment of the present invention has only to filter specific wavelength with optical filter combination encapsulating structure In sheet 20 spiral-lock receiving chamber 30 on integrated bracket 10, i.e. use once combine just can complete assemble;It has structure letter Single, easy to assembly, low cost and the high advantage of production efficiency, it is to avoid traditional direct insertion photosensitive tube material installs specific wavelength additional Optical filter uses the problem that cost of labor is high and production efficiency is low that the packaged type of twice combination exists.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.

Claims (7)

1. photosensitive tube and optical filter combine an encapsulating structure, including light sense chip, wire, the first pin, the second pin, specific Wavelength filter and fluid sealant, described first pin is electrically connected with described smooth sense chip, and described second pin is by described Wire is electrically connected with described smooth sense chip, it is characterised in that described first pin, the second pin and light sense chip are by described Fluid sealant encapsulates, and forms integrated bracket;Wherein, described first pin and the second pin enclose the periphery being located at described fluid sealant, Forming SMD encapsulating structure, being internally formed of described integrated bracket accommodates chamber, and described smooth sense chip is contained in described appearance Receiving the bottom in chamber, described specific wavelength optical filter is covered on the opening in described receiving chamber.
2. photosensitive tube as claimed in claim 1 combines encapsulating structure with optical filter, it is characterised in that described receiving chamber includes phase Intercommunicated the first receiving space and second accommodates space, and described first accommodates space and second accommodates formation one between space Rank portion, a part for described smooth sense chip and described wire be positioned at described first accommodate space, described light sensation chip bottom with Described first pin is electrically connected with, and another part of described wire is encapsulated in described fluid sealant, described specific wavelength optical filter It is embedded in described second to accommodate in space, and is resisted against in described stage portion.
3. photosensitive tube as claimed in claim 2 combines encapsulating structure with optical filter, it is characterised in that described first accommodates space Axial cross section be bowl shape, described specific wavelength optical filter be covered on described first hold space enlarging one end.
4. photosensitive tube as claimed in claim 2 combines encapsulating structure with optical filter, it is characterised in that described first accommodates space Inside it is filled with epoxy resin.
5. photosensitive tube as claimed in claim 2 combines encapsulating structure with optical filter, it is characterised in that described second accommodates space Inwall be provided with the buckle for fixing described specific wavelength optical filter.
6. the photosensitive tube as described in any one in claim 1 to 5 and optical filter combine a processing technique for encapsulating structure, It is characterized in that, comprise the following steps:
A, by metal stamping, molding the first pin and the second pin;
Welding light sense chip by die bond on b, described first pin, described smooth sense chip is connected by welding lead and the second pin Connect, then carry out injection parcel by fluid sealant, form integrated bracket, make described first pin and the second pin enclose and be located at institute State the periphery of fluid sealant, form SMD encapsulating structure, and on described integrated bracket, form receiving chamber, described light sensation core Sheet is positioned at the bottom in described receiving chamber;
C, opening part from described receiving chamber, be pressed into described receiving intracavity by specific wavelength optical filter.
7. a photosensitive tube as claimed in claim 6 and the processing technique of optical filter combination encapsulating structure, it is characterised in that The opening part in described receiving chamber arranges buckle, and after described specific wavelength optical filter is pressed into described receiving intracavity, described buckle will Described specific wavelength optical filter buckles and is fixed on described receiving intracavity.
CN201610874984.5A 2016-09-30 2016-09-30 Photosensitive tube and optical filter combined packaging structure and processing technology thereof Active CN106206756B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107591421A (en) * 2017-08-15 2018-01-16 苏州昀冢电子科技有限公司 Optical filter combination, camera module chip package base assembly and preparation method thereof
CN108987384A (en) * 2018-08-23 2018-12-11 青岛海诺特电器有限公司 A kind of light sensitive resistor photoelectric coupler and production method
CN111146296A (en) * 2018-11-05 2020-05-12 上海集耀电子有限公司 Improved photosensitive receiving tube

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US20140353789A1 (en) * 2013-06-03 2014-12-04 Optiz, Inc. Sensor Package With Exposed Sensor Array And Method Of Making Same
JP2015165551A (en) * 2014-02-04 2015-09-17 セイコーインスツル株式会社 Optical sensor device
CN105514248A (en) * 2016-01-06 2016-04-20 宏齐光电子(深圳)有限公司 High white light and low light decay LED and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003174574A (en) * 2001-12-05 2003-06-20 Matsushita Electric Ind Co Ltd Solid-state imaging unit and manufacturing method therefor
JP2008103742A (en) * 2003-09-09 2008-05-01 Asahi Kasei Electronics Co Ltd Infrared sensor ic
CN1635632A (en) * 2003-12-30 2005-07-06 矽品精密工业股份有限公司 Light sensitive semiconductor package, and manufacturing method and conductor frame thereof
CN103682030A (en) * 2012-09-07 2014-03-26 深圳市龙岗区横岗光台电子厂 LED, LED device and LED manufacture technology
US20140353789A1 (en) * 2013-06-03 2014-12-04 Optiz, Inc. Sensor Package With Exposed Sensor Array And Method Of Making Same
CN103490003A (en) * 2013-10-10 2014-01-01 晶科电子(广州)有限公司 High-reliability LED light source and LED module light source
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CN105514248A (en) * 2016-01-06 2016-04-20 宏齐光电子(深圳)有限公司 High white light and low light decay LED and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107591421A (en) * 2017-08-15 2018-01-16 苏州昀冢电子科技有限公司 Optical filter combination, camera module chip package base assembly and preparation method thereof
CN107591421B (en) * 2017-08-15 2023-08-04 苏州昀冢电子科技股份有限公司 Camera module chip packaging base assembly and preparation method thereof
CN108987384A (en) * 2018-08-23 2018-12-11 青岛海诺特电器有限公司 A kind of light sensitive resistor photoelectric coupler and production method
CN108987384B (en) * 2018-08-23 2023-10-31 青岛海诺特电器有限公司 Photoresistor photoelectric coupler and manufacturing method thereof
CN111146296A (en) * 2018-11-05 2020-05-12 上海集耀电子有限公司 Improved photosensitive receiving tube

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