CN205159328U - Sensitization chip package structure - Google Patents

Sensitization chip package structure Download PDF

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Publication number
CN205159328U
CN205159328U CN201520857975.6U CN201520857975U CN205159328U CN 205159328 U CN205159328 U CN 205159328U CN 201520857975 U CN201520857975 U CN 201520857975U CN 205159328 U CN205159328 U CN 205159328U
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CN
China
Prior art keywords
light
sensitive chip
encapsulating structure
layer
photosensitive area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
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CN201520857975.6U
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Chinese (zh)
Inventor
王之奇
谢国梁
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China Wafer Level CSP Co Ltd
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China Wafer Level CSP Co Ltd
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Filing date
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Application filed by China Wafer Level CSP Co Ltd filed Critical China Wafer Level CSP Co Ltd
Priority to CN201520857975.6U priority Critical patent/CN205159328U/en
Application granted granted Critical
Publication of CN205159328U publication Critical patent/CN205159328U/en
Priority to KR1020187011117A priority patent/KR20180056720A/en
Priority to JP2018520497A priority patent/JP2018533217A/en
Priority to US15/766,781 priority patent/US20190067352A1/en
Priority to PCT/CN2016/103791 priority patent/WO2017071649A1/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a sensitization chip package structure, the packaging structure of sensitization chip includes: the sensitization chip has relative each other first face and second face, first face sets up thoughts light zone, the protection apron has first surface relative each other and second surface, the first surface covers extremely first face, the light shield layer, set up in the second surface of protection apron, be provided with the opening on the light shield layer, the opening exposes feel light zone, the light shield layer is including being located light -absorption layer on the second surface and being located defects such as the bad and ghost of sensitization chip formation of image through forming the light shield layer on the protection at the sensitization chip package structure apron, are eliminated to metal level on the light -absorption layer, improve the image quality of sensitization chip.

Description

Sensitive chip encapsulating structure
Technical field
The utility model relates to technical field of semiconductors, particularly relates to the encapsulation technology of sensitive chip.
Background technology
Along with shooting waits the development of shadow technology, sensitive chip, as the functional chip that the light signal of reception can be converted to the signal of telecommunication, is usually used in the camera of electronic product, has the huge market demand.
Meanwhile, the encapsulation technology of sensitive chip also has tremendous development, the sensitive chip encapsulation technology of main flow is crystal wafer chip dimension encapsulation technology (WaferLevelChipSizePackaging now, WLCSP), be full wafer wafer is encapsulated and after testing again cutting obtain the technology of single finished product chip.Utilize the single finished product chip size after the encapsulation of this kind of encapsulation technology and single crystallite dimension almost, complied with that market is day by day light, little, short to microelectronic product, thinning and low priceization requirement.Crystal wafer chip dimension encapsulation technology is the focus in current encapsulation field and the trend of future development.
Sensitive chip is provided with photosensitive area in its one side; in order to protect in encapsulation process photosensitive area injury-free and pollute; usually; sensitive chip wafer has a covering protection cover plate of photosensitive area; cover sheet, completing wafer-level packaging and can continuing after cutting to retain, protects sensitive chip lastingly in follow-up operation and later use.
Cover sheet has light transmission; with the picked-up of the photosensitive area facilitating sensitive chip light to external world; but due to the existence of cover sheet; it have also been introduced while protection sensitive chip, and some are bad; commonly; there is optical reflection therein in light, cause the phenomenons such as the bad and ghost of imaging after entering cover sheet.This kind of bad those skilled in the art of becoming bite technical problem to be solved.
Illustrating, is a kind of sensitive chip encapsulating structure schematic diagram in prior art with reference to figure 1, Fig. 1.Sensitive chip encapsulating structure comprises: sensitive chip 10, has first surface respect to one another and second; Be positioned at the photosensitive area 20 of sensitive chip 10 first surface; Be positioned at sensitive chip 10 first surface and be positioned at the weld pad 21 of photosensitive area 20 side; From the second through hole (non-label) extended towards the first surface of sensitive chip 10 of sensitive chip 10, described through hole exposes weld pad 21; Be positioned at the insulating barrier 11 of the second surface of described through-hole side wall and sensitive chip 10; On the surface being positioned at insulating barrier 11 and the metal wiring layer 12 of via bottoms, metal wiring layer 12 is electrically connected with weld pad 21; Cover the solder mask 13 of described metal wiring layer 12 and insulating barrier 11, solder mask 13 has perforate; Be positioned at solder mask 13 perforate and the soldered ball 14 be electrically connected with described weld pad 21 by described metal wiring layer 12; Protective substrate 30, it is covered to the first surface of sensitive chip 10; Support dam 21 to be arranged on protective substrate 30, and between protective substrate 30 and sensitive chip 10, support dam 21 and surround photosensitive area.
In the use procedure of above-mentioned sensitive chip; light I1 is incident to protective substrate 30, and some light I2 can expose to the sidewall 30s of protective substrate 30, produces optical reflection phenomenon; if reflection ray is incident to described photosensitive area 20, interference will be caused to the imaging of sensitive chip.Especially; if the incident angle of light I2 meets specified conditions; such as; when described protective substrate 30 is glass; glass is outward air; and the incidence angle of described light I2 is when to be greater than by glass to the critical angle of air; total reflection can be there is in described light I2 at the sidewall 30s place of described protective substrate 30; total reflection light I2 propagates in described protective substrate 30; and refract to photosensitive area 20; severe jamming can be caused to photosensitive area 20, make the imaging of sensitive chip bad or produce ghost, reduce its image quality.
In addition; along with the miniaturization trend of wafer stage chip encapsulation, sensitive chip integrated on wafer stage chip is more, and the size of single finished product chip packing-body is less; the sidewall of protective substrate 30 and the distance at edge, induction zone 20 are also more and more nearer, and above-mentioned interference phenomenon is also more obvious.
Utility model content
The problem that the utility model solves is by improving cover sheet, eliminates the defects such as the bad and ghost of sensitive chip imaging, improves the image quality of sensitive chip.
For solving the problem, the utility model provides a kind of sensitive chip encapsulating structure, comprising: sensitive chip, and have first surface respect to one another and second, described first surface is provided with photosensitive area; Cover sheet, has each other relative first surface and the second surface, and described first surface is covered to described first surface; Light shield layer, is arranged at the second surface of described cover sheet, and described light shield layer is provided with opening, and described opening exposes described photosensitive area; Described light shield layer comprises the light-absorption layer be positioned on described second surface and the metal level be positioned on described light-absorption layer.
Preferably, the material of described light-absorption layer is black glue.
Preferably, the material of described light-absorption layer is black photosensitive adhesive.
Preferably, described metal level is through surperficial Darkening process.
Preferably, the material of described metal level is aluminium.
Preferably, the first surface of described cover sheet is provided with support dam, and the first surface of described support dam and described cover sheet forms cavity, and described photosensitive area is positioned at described cavity.
Preferably, described sensitive chip encapsulating structure also comprises: be arranged at described first surface and be positioned at the weld pad outside described photosensitive area; From the through hole that described second extends towards described first surface, described through hole exposes described weld pad; Cover the insulating barrier on described second and described through-hole side wall surface; Be positioned on described insulating barrier and the metal wiring layer of via bottoms, described metal wiring layer is electrically connected with described weld pad; Be positioned at the solder mask on described metal wiring layer and described insulating barrier, described solder mask is provided with perforate, described aperture bottom exposes metal wiring layer; Fill the soldered ball of described perforate, described soldered ball is electrically connected with described metal wiring layer.
The beneficial effects of the utility model are by forming light shield layer on the cover sheet of sensitive chip encapsulating structure, eliminate the defects such as the bad and ghost of sensitive chip imaging, improve the image quality of sensitive chip.
Accompanying drawing explanation
Fig. 1 is prior art sensitive chip encapsulating structure schematic diagram;
Fig. 2 is the utility model one embodiment sensitive chip encapsulating structure schematic diagram;
Fig. 3 is the plan structure schematic diagram of wafer;
Fig. 4 is the cutaway view of Fig. 3 along A-A1;
Fig. 5 is the cross-sectional schematic of substrate in the utility model one embodiment;
Fig. 6 (a) to Fig. 6 (e) forms the process chart of light shield layer for the utility model one embodiment on substrate;
Fig. 7 (a) to Fig. 7 (e) forms the process chart of light shield layer for another embodiment of the utility model on substrate;
Fig. 8 is the structural representation after wafer and substrate contraposition pressing;
Fig. 9 be to wafer level packaging process after structural representation;
Embodiment
Below with reference to accompanying drawing, embodiment of the present utility model is described in detail.But these execution modes do not limit the utility model, the structure that those of ordinary skill in the art makes according to these execution modes, method or conversion functionally are all included in protection range of the present utility model.
It should be noted that, providing the object of these accompanying drawings to be understand embodiment of the present utility model to contribute to, and should not be construed as and limit improperly of the present utility model.For the purpose of clearer, size shown in figure not drawn on scale, may make and amplify, to reduce or other change.In addition, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
Please refer to Fig. 2, be the utility model one embodiment sensitive chip encapsulating structure schematic diagram, sensitive chip encapsulating structure comprises: sensitive chip 210, and have first surface 210a and second 210b respect to one another, first surface 210a is provided with photosensitive area 211; Cover sheet 330, have each other relative first surface 330a and second surface 330b, first surface 330a is covered to first surface 210a; Described first surface 330a has and supports dam 320, supports dam 320 between cover sheet 330 and sensitive chip 210, and photosensitive area 211 is positioned within the cavity that the first surface 330a that supports dam 320 and cover sheet 330 surrounds.
The second surface 330b of cover sheet 330 is provided with light shield layer 511, light shield layer 511 is provided with opening, opening exposes the region of the corresponding photosensitive area 211 of second surface 330b, and namely opening exposes photosensitive area 211.In certain embodiments, the area of opening is equal to, or greater than the area of photosensitive area 211, and the light being incident to cover sheet 330 from opening can enter photosensitive area 211 by pierce through the protection cover plate 330, avoids the interference of light shield layer 511 pairs of photosensitive areas 211.
The light-absorption layer 501 that light shield layer 511 comprises the second surface 330b being positioned at cover sheet 330 and the metal level 502 be positioned on light-absorption layer 501.The Main Function of light-absorption layer 501 is to absorb the light of cover sheet 330 internal transmission to second surface 330b, and the Main Function of metal level 502 is to stop that the extraneous light being incident to light shield layer 511 region enters cover sheet 330 inside and provides protection to light-absorption layer 501.
In the present embodiment, the material of light-absorption layer 501 is black photosensitive adhesive or black glue.The material of metal level 502 is aluminium, and the surface of metal level 502 is through Darkening process, can prevent light to its surface, mirror-reflection occurring and disturbing the image quality of sensitive chip 210.
Material due to light-absorption layer 501 is organic material, material is softer, if do not arrange metal level 502, light-absorption layer 501 is easily scratched in follow-up technique, metal level 502 has enough hardness, scratch resistance antiwear property is comparatively strong, by forming metal level 502 on light-absorption layer 501, light-absorption layer 501 can be prevented to be scratched in follow-up technique.
And due to metal level 502 light tight, therefore, the thickness of light-absorption layer 501 can be thinning and can choose the lower light absorbent of absorptance.If do not arrange metal level 502, higher requirement is had to the absorptance of light-absorption layer 501, such as, absorptance is higher than 95% shaded effect that just can reach, by increasing metal level 502, require to reduce to the absorptance of light-absorption layer 501, choose absorptance be 90% light absorbent can reach good shaded effect, the light absorbent that higher absorptance requires means more high cost, reduces cost by setting up metal level 502.
The first surface 210 of sensitive chip 210 is provided with the weld pad 212 be positioned at outside photosensitive area 211, in the present embodiment, sensitive chip 210 is provided with: the through hole extended to first surface 210a from second 210b of sensitive chip 210, and through hole exposes weld pad 212; Be positioned at the insulating barrier 213 of second 210b and through-hole side wall; Be positioned at the metal wiring layer 214 of insulating barrier 213 and via bottoms, metal wiring layer 214 is electrically connected with weld pad 212; Be positioned at the solder mask 215 on metal wiring layer 214 and insulating barrier 213, solder mask 215 is provided with perforate, aperture bottom exposes metal wiring layer 214; Fill the soldered ball 216 of perforate, soldered ball 216 is electrically connected with metal wiring layer 214.So, make weld pad 212 realize being electrically connected with soldered ball 216 by metal wiring layer 214, and utilize soldered ball 216 to be electrically connected with other circuit outside the electrical connection realizing sensitive chip 210 and other circuit outside.
Accordingly, the utility model embodiment provides sensitive chip method for packing, for the formation of sensitive chip encapsulating structure as shown in Figure 2.Please refer to Fig. 3 extremely, is the intermediate structure schematic diagram formed in the utility model embodiment encapsulation process.
First, with reference to figure 3 and Fig. 4, provide wafer 200, wherein, Fig. 3 is the plan structure schematic diagram of wafer 200, and Fig. 4 is the cutaway view of Fig. 3 along A-A1.
Wafer 200 has first surface 200a and second 200b respect to one another.Wafer 200 has the sensitive chip 210 of many array arrangements and the Cutting Road region 220 between neighboring photosensitive chip 210, after the encapsulation completing wafer 200, cuts along Cutting Road region 220, can form multiple sensitive chip encapsulating structure.
The weld pad 212 that sensitive chip 210 has induction zone 211 and is positioned at outside photosensitive area 211.Photosensitive area 211 can comprise the arrangement of multiple photodiode array, for the light signal exposing to photosensitive area 211 is converted into the signal of telecommunication.The input and output side that weld pad 212 is connected with external circuit as device in photosensitive area 211.Sensitive chip 210 can also comprise other function elements, and the utility model is not restricted this, as long as namely the semiconductor chip with sensitization function can think the sensitive chip of the utility model indication.
It should be noted that, in the subsequent step of the method for packing of the utility model embodiment, for the purpose of simple and clear, be only described for the sectional view in the A-A1 direction along wafer 200 shown in Fig. 3, perform similar processing step in other regions.
Then, with reference to figure 5, provide substrate 300, substrate 300 is covered in the first surface 200a of wafer 200 in subsequent technique, for protecting the photosensitive area 211 on wafer 200.
Because needs light therethrough substrate 300 arrives photosensitive area 211, therefore, substrate 300 adopts light transmissive material, has high light transmittance.Concrete, the material of substrate 300 can for unorganic glass, polymethyl methacrylate or other there is the light transmissive material of certain strength.
Meanwhile, in order to ensure intensity and the light transmission of substrate 300, choosing the thickness of substrate also has certain requirement, and in the present embodiment, the thickness range of substrate 300 is 50 μm ~ 500 μm, such as, can be 400 μm.
Substrate 300 comprises each other relative first surface 300a and second surface 300b, and two surperficial 300a and 300b of substrate 300 are all smooth, smooth, can not produce scattering, diffuse reflection etc. to incident ray.Substrate 300 encapsulates follow-up completing and namely remains as the cover sheet 330 of sensitive chip 210 after cutting.
Form multiple support dam 320 at the first surface 300a of substrate 300, the first surface 300a supporting dam 320 and substrate 300 forms the cavity of multiple array arrangement, the corresponding photosensitive area 211 of each cavity.
Form light shield layer 511 at the second surface 300b of substrate 300, light shield layer 511 has the multiple openings 520 corresponding with photosensitive area 211.The area of opening 520 is more than or equal to the area of photosensitive area 211, after follow-up formation encapsulating structure, for exposing photosensitive area 211.
The light-absorption layer 501 that light shield layer 511 comprises the second surface 300b being positioned at substrate 300 and the metal level 502 be positioned on light-absorption layer 501.
The material of light-absorption layer 501 is light tight or the black organic material of low light transmission, such as black glue or black photosensitive adhesive.So-called black glue is the black glue be usually used in semiconductor technology without photobehavior, as epoxide-resin glue.Black photosensitive adhesive is the organic gel with photobehavior be usually used in semiconductor technology.
Metal level 502 is positioned on another side that light-absorption layer 501 does not contact with second surface 300b, and metal level 502 can, through surperficial Darkening process, make light can not form mirror-reflection on its surface.The material of metal level 502 can be aluminium, aluminium alloy or other suitable metal materials.
When the material of light-absorption layer is black glue, the concrete technology forming light shield layer 511 is as follows, please also refer to Fig. 6 (a) to Fig. 6 (e):
As shown in Fig. 6 (a), adopt spin coating proceeding to be coated with black glue at whole of the second surface 300b of substrate 300 and form black glue-line 5010;
As shown in Fig. 6 (b), on described black glue-line 5010, deposit metallic material forms metal material layer 5020 and carries out surperficial Darkening process to described metal material layer 5020;
As shown in Fig. 6 (c), described metal material layer 5020 forms graphical photoresist layer 503;
As shown in Fig. 6 (d), described metal material layer 5020 etches opening and forms patterned metal level 502;
As shown in Fig. 6 (e), adopt deep dry etch process, on described black glue-line 5010, etch opening using described metal level 502 as mask and form patterned light-absorption layer 501.
When the material of light-absorption layer is black photosensitive adhesive, the concrete technology forming light shield layer 511 ' is as follows, please also refer to Fig. 7 (a) to Fig. 7 (e).
As shown in Fig. 7 (a), spin coating proceeding is adopted to form black photosensitive glue-line 5010 ' at second surface 300b whole painting black photoresists of substrate 300;
As shown in Fig. 7 (b), form metal material layer 5020 ' in the upper deposit metallic material of described black photosensitive glue-line 5010 ' and surperficial Darkening process is carried out to described metal material layer 5020 ';
As shown in Fig. 7 (c), at the graphical photoresist layer 503 ' of the upper formation of described metal material layer 5020 ';
As shown in Fig. 7 (d), described metal material layer 5020 ' etches opening and forms patterned metal level 502 ';
As shown in Fig. 7 (e), using described metal level 502 ' as photoresistance, adopt exposure imaging technique, above form opening at described black photosensitive glue-line 5010 ' thus form patterned light-absorption layer 501 '.
In the present embodiment, described metal level 502 (or metal level 502 ') is aluminium lamination, by soda acid liquid medicine, surperficial Darkening process is carried out to described aluminium lamination, such as, the aqueous slkali of sulfur-bearing can be adopted to process described aluminium lamination, described aluminium lamination is formed the sulfide rete of black, improves the anti-mirror reflection effect of described aluminium lamination.In certain embodiments, the thickness range of the metal level of the surperficial Darkening process of described process is 1 μm ~ 10 μm.
In certain embodiments, the thickness range of described light-absorption layer is 1-10 μm.
It should be noted that, in other embodiments, the second surface 300b of substrate 300 is formed light shield layer 511 can also after substrate 300 with wafer 200 contraposition pressing, can also be formed before supporting dam 320 on the substrate 300, the utility model is not construed as limiting this, can select according to concrete process conditions.
In the present embodiment, the material supporting dam 320 is photoresists, the first surface 300a being formed at substrate 300 by techniques such as spraying or spin coatings forms photosensitive plastic coating, then carries out to described photosensitive plastic coating the support dam 320 graphically forming multiple array arrangement by exposure imaging technique.In certain embodiments, the material supporting dam 320 can also be the insulating dielectric materials such as silica, silicon nitride, silicon oxynitride, and formed by depositing operation, follow-up employing photoetching and etching technics carry out the support dam 320 graphically forming multiple array arrangement.
Then, with reference to figure 8, by the first surface 200a contraposition pressing of the first surface 300a of substrate 300 and wafer 200, support dam 320 and surround cavity (sign) with the first surface 300a of substrate 300, photosensitive area 211 is positioned at described cavity.
In the present embodiment, by adhesive layer (not shown) by substrate 300 and wafer 200 contraposition pressing.Such as, adhesive layer can be formed on the top surface supporting dam 320, form described adhesive layer by silk screen printing or spin coating proceeding, then by the first surface 200a contraposition pressing of the first surface 300a of substrate 300 and wafer 200, be combined by described adhesive layer.Described adhesive layer both can realize bonding effect, can play again insulation and sealing function.Described adhesive layer can be the polymeric materials such as polymeric adhesion material, such as silica gel, epoxy resin, benzocyclobutene.
In the present embodiment, after relative with the first surface 200a of wafer 200 for the first surface 300a of substrate 300 combination, described support dam 320 surrounds cavity with the first surface 200a of wafer 200.The position of described cavity is corresponding with the position of photosensitive area 211, and described cavity area is slightly larger than the area of photosensitive area 211, and photosensitive area 211 can be made to be positioned at described cavity.In the present embodiment, after substrate 300 and wafer 200 being combined, the weld pad 212 on wafer 200 is covered by the support dam 320 on substrate 300.Substrate 300 in subsequent technique, can play the effect of protection wafer 200.
Then, with reference to figure 9, encapsulation process is carried out to wafer 200.
Particularly, first, carry out thinning from second 200b of wafer 200 to wafer 200, so that the etching of follow-up through hole, can mechanical lapping, chemical mechanical milling tech etc. be adopted to the thinning of wafer 200; Then, etch from second 200b of wafer 200 wafer 200, form through hole (sign), described through hole exposes the weld pad 212 of wafer 200 first surface 200a side; Then, insulating barrier 213 is formed on second 200b of wafer 200 and on the sidewall of described through hole, described insulating barrier 213 exposes the weld pad 212 of described via bottoms, described insulating barrier 213 can provide electric insulation for second of wafer 200 200b, the substrate of the wafer 200 that can also expose for described through hole provides electric insulation, and the material of described insulating barrier 213 can be silica, silicon nitride, silicon oxynitride or insulating resin; Then, the metal wiring layer 214 connecting described weld pad 212 is formed on described insulating barrier 213 surface, described weld pad 212 is caused on second 200b of wafer 200, then is connected with external circuit, described metal wiring layer 214 through deposit metal films and to the etching of metallic film after formed; Then, the solder mask 215 with perforate (sign) is formed on described metal wiring layer 214 surface and described insulating barrier 213 surface, described perforate exposes the surface of the described metal wiring layer 214 of part, the material of described solder mask 215 is the insulating dielectric materials such as silica, silicon nitride, for the protection of described metal wiring layer 214; Again then, the surface of described solder mask 215 forms soldered ball 216, described perforate filled by described soldered ball 216, and described soldered ball 216 can be the syndeton such as soldered ball, metal column, and material can be the metal materials such as copper, aluminium, gold, tin or lead.
After carrying out encapsulation process to wafer 200, the chip-packaging structure that follow-up cutting can be made to obtain is connected with external circuit by described soldered ball 216.The photosensitive area 211 of described sensitive chip is after being converted to the signal of telecommunication by light signal, and the described signal of telecommunication can pass through described weld pad 212, metal wiring layer 214 and soldered ball 216 successively, transfers to external circuit and processes.
Multiple encapsulating structure is as shown in Figure 2 formed through cutting technique.
Be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, technical scheme in each execution mode also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility execution mode of the present utility model; they are also not used to limit protection range of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection range of the present utility model.

Claims (7)

1. a sensitive chip encapsulating structure, comprising:
Sensitive chip, have first surface respect to one another and second, described first surface is provided with photosensitive area;
Cover sheet, has each other relative first surface and the second surface, and described first surface is covered to described first surface;
Light shield layer, is arranged at the second surface of described cover sheet, and described light shield layer is provided with opening, and described opening exposes described photosensitive area;
It is characterized in that:
Described light shield layer comprises the light-absorption layer be positioned on described second surface and the metal level be positioned on described light-absorption layer.
2. sensitive chip encapsulating structure according to claim 1, is characterized in that, the material of described light-absorption layer is black glue.
3. sensitive chip encapsulating structure according to claim 1, is characterized in that, the material of described light-absorption layer is black photosensitive adhesive.
4. sensitive chip encapsulating structure according to claim 1, is characterized in that, described metal level is through surperficial Darkening process.
5. sensitive chip encapsulating structure according to claim 4, is characterized in that, the material of described metal level is aluminium.
6. sensitive chip encapsulating structure according to claim 1, is characterized in that, the first surface of described cover sheet is provided with support dam, and the first surface of described support dam and described cover sheet forms cavity, and described photosensitive area is positioned at described cavity.
7. sensitive chip encapsulating structure according to claim 1, is characterized in that, described sensitive chip encapsulating structure also comprises:
Be arranged at described first surface and be positioned at the weld pad outside described photosensitive area;
From the through hole that described second extends towards described first surface, described through hole exposes described weld pad;
Cover the insulating barrier on described second and described through-hole side wall surface;
Be positioned on described insulating barrier and the metal wiring layer of via bottoms, described metal wiring layer is electrically connected with described weld pad;
Be positioned at the solder mask on described metal wiring layer and described insulating barrier, described solder mask is provided with perforate, described aperture bottom exposes metal wiring layer;
Fill the soldered ball of described perforate, described soldered ball is electrically connected with described metal wiring layer.
CN201520857975.6U 2015-10-29 2015-10-29 Sensitization chip package structure Withdrawn - After Issue CN205159328U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201520857975.6U CN205159328U (en) 2015-10-29 2015-10-29 Sensitization chip package structure
KR1020187011117A KR20180056720A (en) 2015-10-29 2016-10-28 Photosensitive chip packaging structure and packaging method thereof
JP2018520497A JP2018533217A (en) 2015-10-29 2016-10-28 Photosensitive chip packaging structure and packaging method thereof
US15/766,781 US20190067352A1 (en) 2015-10-29 2016-10-28 Photosensitive chip packaging structure and packaging method thereof
PCT/CN2016/103791 WO2017071649A1 (en) 2015-10-29 2016-10-28 Photosensitive chip packaging structure and packaging method thereof

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CN201520857975.6U CN205159328U (en) 2015-10-29 2015-10-29 Sensitization chip package structure

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105244360A (en) * 2015-10-29 2016-01-13 苏州晶方半导体科技股份有限公司 Packaging structure of photosensitive chip and packaging method thereof
WO2017071649A1 (en) * 2015-10-29 2017-05-04 苏州晶方半导体科技股份有限公司 Photosensitive chip packaging structure and packaging method thereof
CN108364970A (en) * 2018-04-20 2018-08-03 苏州晶方半导体科技股份有限公司 A kind of encapsulating structure and its packaging method of image sensing chip
CN111345021A (en) * 2017-10-20 2020-06-26 宁波舜宇光电信息有限公司 Photosensitive assembly and camera module based on metal support

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105244360A (en) * 2015-10-29 2016-01-13 苏州晶方半导体科技股份有限公司 Packaging structure of photosensitive chip and packaging method thereof
WO2017071649A1 (en) * 2015-10-29 2017-05-04 苏州晶方半导体科技股份有限公司 Photosensitive chip packaging structure and packaging method thereof
CN111345021A (en) * 2017-10-20 2020-06-26 宁波舜宇光电信息有限公司 Photosensitive assembly and camera module based on metal support
CN108364970A (en) * 2018-04-20 2018-08-03 苏州晶方半导体科技股份有限公司 A kind of encapsulating structure and its packaging method of image sensing chip

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