CN208938964U - Fan-out-type antenna packages structure with air chamber - Google Patents
Fan-out-type antenna packages structure with air chamber Download PDFInfo
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- CN208938964U CN208938964U CN201822037827.6U CN201822037827U CN208938964U CN 208938964 U CN208938964 U CN 208938964U CN 201822037827 U CN201822037827 U CN 201822037827U CN 208938964 U CN208938964 U CN 208938964U
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means 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
- H01L2224/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
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Abstract
The utility model provides a kind of fan-out-type antenna packages structure with air chamber, comprising: re-wiring layer；Semiconductor chip is installed on re-wiring layer；First capsulation material layer, positioned at the first surface of re-wiring layer；Second capsulation material layer, positioned at the second surface of re-wiring layer；First antenna structure, positioned at the second surface of the capsulation material layer far from re-wiring layer；First antenna structure includes antenna and ground wire；First electric connection structure is located in the second capsulation material layer；Air cavity configuration is located in first antenna structure；Third capsulation material layer, positioned at the second surface of the capsulation material layer far from re-wiring layer；Second antenna structure, the surface positioned at third capsulation material layer far from the second capsulation material layer；Second electric connection structure is located in third plastic packaging layer；Through-hole is connected, is located in the first capsulation material layer；Solder projection is located in connection through-hole.Aerial loss can be effectively reduced in the utility model, to improve antenna performance.
Description
Technical field
The utility model relates to technical field of semiconductors, more particularly to a kind of fan-out-type antenna packages with air chamber
Structure.
Background technique
Existing fan-out-type antenna packages structure generally comprises stacked antenna structure, since antenna structure is generally metal
Line, the antenna structure positioned at upper layer can cause serious loss of signal to the signal of the antenna structure of lower layer, to influence to be fanned out to
Antenna performance in type antenna packages structure.In addition, semiconductor chip and day knot in existing fan-out-type antenna packages structure
Structure is normally at the same side of re-wiring layer, and antenna structure can cause noise jamming to chip, to influence semiconductor chip
Performance.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of fans with air chamber
Type antenna packages structure out, the antenna structure meeting for solving to be located at upper layer existing for fan-out-type antenna structure in the prior art
Serious loss of signal is caused to the signal of the antenna structure of lower layer, so that the day influenced in fan-out-type antenna packages structure is linear
The problem of energy and antenna structure can cause noise jamming to chip, thus the problem of influencing the performance of semiconductor chip.
In order to achieve the above objects and other related objects, the utility model provides a kind of fan-out-type antenna with air chamber
Encapsulating structure, the fan-out-type antenna packages structure with air chamber include:
Re-wiring layer, including opposite first surface and second surface；
Semiconductor chip is installed in the first surface of the re-wiring layer, and is electrically connected with the re-wiring layer；
First capsulation material layer positioned at the first surface of the re-wiring layer, and the semiconductor chip is encapsulated and is moulded
Envelope；
Second capsulation material layer, positioned at the second surface of the re-wiring layer；
First antenna structure, positioned at the surface of the second capsulation material layer far from the re-wiring layer；Described first
Antenna structure includes antenna and the ground wire on the outside of the antenna；
First electric connection structure is located in the second capsulation material layer, and one end is electrically connected with the re-wiring layer, separately
One end is electrically connected with the first antenna structure；
Air cavity configuration is located in the first antenna structure, and is located at the periphery of the antenna, and the antenna is close
Envelope；
Third capsulation material layer, positioned at the surface of the second capsulation material layer far from the re-wiring layer, described
Three capsulation material layers are by the first antenna structure and the air cavity configuration plastic packaging；
Second antenna structure, the surface positioned at the third capsulation material layer far from the second capsulation material layer；
Second electric connection structure is located in the third plastic packaging layer, and one end is electrically connected with second antenna structure, another
End is electrically connected to ground with described；
Through-hole is connected, is located in the first capsulation material layer, and expose the first table of the part re-wiring layer
Face；
Solder projection is located in the connection through-hole, and is electrically connected with the re-wiring layer.
Optionally, surface of the seal gas cavity configuration far from the second capsulation material layer and the third plastic packaging material
Surface flush of the bed of material far from the second capsulation material layer.
Optionally, second antenna structure includes dual polarized antenna.
Optionally, second antenna structure is located at the outside of the antenna.
Optionally, the antenna is located at the surface of the semiconductor chip.
Optionally, first electric connection structure includes metal lead wire or metal column；Second electric connection structure includes
Metal lead wire or metal column.
The utility model also provides a kind of preparation method of fan-out-type antenna packages structure with air chamber, described to have
The preparation method of the fan-out-type antenna packages structure of air chamber includes the following steps:
1) substrate is provided；
2) semiconductor chip is provided, the semiconductor chip face down upside-down mounting is installed on the substrate；
3) the first capsulation material layer is formed on Yu Suoshu substrate, the first capsulation material layer seals the semiconductor chip
Wrap up in plastic packaging；
4) substrate is removed, a surface of the first capsulation material layer exposes the front of the semiconductor chip；
5) the first capsulation material of Yu Suoshu layer exposes the positive surface formation re-wiring layer of the semiconductor chip, institute
Stating re-wiring layer includes opposite first surface and second surface, wherein the first surface of the re-wiring layer with it is described
The surface of first capsulation material layer is in contact；
6) second surface of Yu Suoshu re-wiring layer forms the first electric connection structure, the bottom of first electric connection structure
Portion is electrically connected with the re-wiring layer；
7) second surface of Yu Suoshu re-wiring layer forms the second capsulation material layer, and the second capsulation material layer is by institute
State the first electric connection structure plastic packaging, and surface of the second capsulation material layer far from the re-wiring layer and first electricity
The top flush of connection structure；
8) Yu Suoshu the second capsulation material layer forms first antenna structure far from the surface of the re-wiring layer, and described the
One antenna structure is electrically connected with the top of first electric connection structure；The first antenna structure includes antenna and is located at described
Ground wire on the outside of antenna；
9) air cavity configuration and the second electric connection structure are formed in Yu Suoshu first antenna structure；Described second is electrically connected binding
The bottom of structure is electrically connected to ground with described in the first antenna structure, the air chamber structure be located at the antenna outside
It encloses, by the day linear sealing；
10) Yu Suoshu the second capsulation material layer forms third capsulation material layer, institute far from the surface of the re-wiring layer
Third capsulation material layer is stated by the first antenna structure, second electric connection structure and the air cavity configuration plastic packaging；Institute
State the top flush on surface of the third capsulation material layer far from the re-wiring layer Yu second electric connection structure；
11) Yu Suoshu third capsulation material layer forms the second antenna structure far from the surface of the second capsulation material layer,
Second antenna structure is electrically connected with the top of second electric connection structure；
12) solder projection, the solder projection and re-wiring layer electricity are formed in the first capsulation material of Yu Suoshu layer
Connection.
Optionally, further include the steps that forming peeling layer in the surface of the substrate between step 1) and step 2)；Step
2) in, the semiconductor chip is installed on the peeling layer.
Optionally, surface of the third capsulation material layer far from the second capsulation material layer formed in step 10)
Surface flush with the air cavity configuration far from the second capsulation material layer.
Optionally, second antenna structure formed in step 11) includes dual polarized antenna.
Optionally, second antenna structure formed in step 11) is located at the outside of the antenna.
Optionally, the solder projection is formed in step 12), in the first capsulation material of Yu Suoshu layer to include the following steps:
Connection through-hole 12-1) is formed in the first capsulation material of Yu Suoshu layer, it is described heavy that the connection through-hole exposes part
The first surface of new route layer；
12-2) in forming solder projection in the connection through-hole, the solder projection is electrically connected with the re-wiring layer.
As described above, the fan-out-type antenna packages structure with air chamber of the utility model, has the advantages that
The utility model forms the air cavity configuration for surrounding encapsulated antenna by the antenna periphery in first antenna structure, due to air
Loss to aerial signal is zero, and aerial loss can be effectively reduced, to improve antenna performance；Second layer antenna structure uses
Dual polarized antenna, the antenna periphery that second layer antenna structure can be set in first layer antenna structure, to avoid second
Layer antenna structure causes to be lost to the signal of first layer antenna structure；It is separate by the way that semiconductor chip is set to re-wiring layer
The side of first antenna structure and the second antenna structure, re-wiring layer can stop antenna dry to the noise of semiconductor chip
It disturbs, to improve the performance of semiconductor chip.
Detailed description of the invention
Fig. 1 is shown as the system of the fan-out-type antenna packages structure with air chamber provided in the utility model embodiment one
The flow chart of Preparation Method.
Fig. 2~Figure 18 is shown as the fan-out-type antenna packages knot with air chamber provided in the utility model embodiment one
The structural schematic diagram that each step of the preparation method of structure is presented, wherein Figure 18 be shown as the utility model with air chamber
The structural schematic diagram of fan-out-type antenna packages structure.
Component label instructions
10 substrates
11 semiconductor chips
111 bare chips
112 connection weld pads
12 first capsulation material layers
121 connection through-holes
13 re-wiring layers
131 insulating layers
132 metal line layers
14 first electric connection structures
15 second capsulation material layers
16 first antenna structures
161 antennas
162 ground wires
17 air cavity configurations
18 second electric connection structures
19 third capsulation material layers
20 second antenna structures
21 solder projections
22 peeling layers
Specific embodiment
Illustrate the embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.
Please refer to Fig. 1~Figure 18.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of utility model, though it is only shown with related component in the utility model rather than when according to actual implementation in diagram
Component count, shape and size are drawn, when actual implementation form, quantity and the ratio of each component can arbitrarily change for one kind
Become, and its assembly layout form may also be increasingly complex.
Embodiment one
Referring to Fig. 1, the preparation method of the present embodiment provides a kind of fan-out-type antenna packages structure with air chamber, institute
The preparation method for stating the fan-out-type antenna packages structure with air chamber includes the following steps:
1) substrate is provided；
2) semiconductor chip is provided, the semiconductor chip face down upside-down mounting is installed on the substrate；
3) the first capsulation material layer is formed on Yu Suoshu substrate, the first capsulation material layer seals the semiconductor chip
Wrap up in plastic packaging；
4) substrate is removed, a surface of the first capsulation material layer exposes the front of the semiconductor chip；
5) the first capsulation material of Yu Suoshu layer exposes the positive surface formation re-wiring layer of the semiconductor chip, institute
Stating re-wiring layer includes opposite first surface and second surface, wherein the first surface of the re-wiring layer with it is described
The surface of first capsulation material layer is in contact；
6) second surface of Yu Suoshu re-wiring layer forms the first electric connection structure, the bottom of first electric connection structure
Portion is electrically connected with the re-wiring layer；
7) second surface of Yu Suoshu re-wiring layer forms the second capsulation material layer, and the second capsulation material layer is by institute
State the first electric connection structure plastic packaging, and surface of the second capsulation material layer far from the re-wiring layer and first electricity
The top flush of connection structure；
8) Yu Suoshu the second capsulation material layer forms first antenna structure far from the surface of the re-wiring layer, and described the
One antenna structure is electrically connected with the top of first electric connection structure；The first antenna structure includes antenna and is located at described
Ground wire on the outside of antenna；
9) air cavity configuration and the second electric connection structure are formed in Yu Suoshu first antenna structure；Described second is electrically connected binding
The bottom of structure is electrically connected to ground with described in the first antenna structure, the air chamber structure be located at the antenna outside
It encloses, by the day linear sealing；
10) Yu Suoshu the second capsulation material layer forms third capsulation material layer, institute far from the surface of the re-wiring layer
Third capsulation material layer is stated by the first antenna structure, second electric connection structure and the air cavity configuration plastic packaging；Institute
State the top flush on surface of the third capsulation material layer far from the re-wiring layer Yu second electric connection structure；
11) Yu Suoshu third capsulation material layer forms the second antenna structure far from the surface of the second capsulation material layer,
Second antenna structure is electrically connected with the top of second electric connection structure；
12) solder projection, the solder projection and re-wiring layer electricity are formed in the first capsulation material of Yu Suoshu layer
Connection.
In step 1), S1 step and Fig. 2 in Fig. 1 are please referred to, a substrate 10 is provided.
As an example, the material of the substrate 10 may include in silicon, glass, silica, ceramics, polymer and metal
One or more kinds of composite materials, shape can for wafer shape, it is rectangular or it is other it is any needed for shape；The present embodiment
The problems such as rupture, warpage, fracture occur for semiconductor chip in subsequent preparation process is prevented by the substrate 10.
As an example, the step of further including after step 1), forming peeling layer 22 on Yu Suoshu substrate 10, as shown in Figure 3.Institute
State peeling layer 22 in the subsequent process as the semiconductor chip 11 being subsequently formed and be located at the first capsulation material layer 12 with it is described
Separating layer between substrate 10 preferably selects the jointing material with smooth finish surface to be made, must be with the semiconductor core
Piece 11 and the first capsulation material layer 12 have certain binding force, to guarantee the semiconductor chip 11 and first modeling
Closure material layer 12 will not generate situations such as mobile in the subsequent process, in addition, it also has stronger combination with the substrate 10
In general power needs to be greater than and the semiconductor chip 11 and the first plastic packaging material with the binding force of the substrate 10
The binding force of the bed of material 12.As an example, the material of the peeling layer 22 is selected from the two-sided adhesive tape for all having viscosity or passes through spin coating
The adhesive glue etc. of technique production.Adhesive tape preferably uses UV adhesive tape, is easy to pull off after the irradiation of UV light.In other embodiment party
In formula, the other materials layer that physical vaporous deposition or chemical vapour deposition technique are formed, such as ring is also can be selected in the peeling layer 22
Oxygen resin (Epoxy), silicon rubber (silicone rubber), polyimides (PI), polybenzoxazoles (PBO), benzocyclobutene
(BCB) etc..When the substrate 10 described in later separation, the methods of wet etching, chemical mechanical grinding can be used, remove described in removal
Peeling layer 22.
In step 2), S2 step and Fig. 4 in Fig. 1 are please referred to, semiconductor chip 11 is provided, by the semiconductor core
Piece 11 is installed on the substrate 10.
As an example, when being formed with the peeling layer 22 on the substrate 10,11 face down of semiconductor chip
Upside-down mounting is installed on the peeling layer 22.
As an example, the semiconductor chip 11 can be installed in institute using bonding back tracking method (bond-on-trace)
It states on peeling layer 22, the front of the semiconductor chip 11 is in contact with the upper surface of the peeling layer 22；The bonding tracking
Method is to be not repeated herein known to those skilled in the art.
As an example, the semiconductor chip 11 can be any one existing semiconductor chip, the semiconductor core
Piece 11 includes bare chip 111 and the connection weld pad 112 in the bare chip 111, be could be formed in the bare chip 111
Function element, the connection weld pad 112 are electrically connected with the function element being located in the bare chip 111；The connection weldering
Surface locating for pad 112 is the front of the semiconductor chip 11.
In step 3), S3 step and Fig. 5 in Fig. 1 are please referred to, forms the first capsulation material layer on the peeling layer 22
12, the semiconductor chip 11 is encapsulated plastic packaging by the first capsulation material layer 12.
As an example, can be using compressing and forming process, transfer shaping technology, hydraulic seal moulding process, molding bottom
Fill process, capillary underfill technique, vacuum lamination process or spin coating proceeding form institute in the upper surface of the peeling layer 22
State the first capsulation material layer 13.
As an example, the material of the first capsulation material layer 12 can be but be not limited only to polyimides, silica gel, epoxy
Resin, curable polymer-based material or curable resin-based materials etc..
As an example, the thickness of the first capsulation material layer 12 can be greater than the thickness of the semiconductor chip 11, this
When, the upper surface of the first capsulation material layer 12 is higher than the upper surface of the semiconductor chip 11；Certainly, first plastic packaging
The thickness of material layer 12 can also be equal to the thickness of the semiconductor chip 11, at this point, the first capsulation material layer 12 is upper
The upper surface flush on surface and the semiconductor chip 11.It can be big with the thickness of the first capsulation material layer 12 in Fig. 5
In the semiconductor chip 11 thickness as example.
In step 4), S4 step and Fig. 6 in Fig. 1 are please referred to, removes the substrate 10, the first capsulation material layer
12 surface exposes the front of the semiconductor chip 11.
As an example, the substrate 10 and the peeling layer 22 can be removed using grinding technics, reduction process etc..
Preferably, in the present embodiment, the peeling layer 22 is UV adhesive tape, and the mode for tearing the peeling layer 22 can be used to remove
State substrate 10.
In step 5), S5 step and Fig. 7 in Fig. 1 are please referred to, the first capsulation material of Yu Suoshu layer 12 exposes described
The positive surface of semiconductor chip 11 forms re-wiring layer 13, and the re-wiring layer 13 includes opposite first surface and the
Two surfaces, wherein the first surface of the re-wiring layer 13 is in contact with the surface of the first capsulation material layer 12.
As an example, as shown in fig. 6, the re-wiring layer 13 includes a layer insulating 131 and one layer of metal line layer
132, Yu Suoshu first capsulation material layers 12 expose the positive surface of the semiconductor chip 11 and form the packet of re-wiring layer 13
Include following steps:
5-1) the first capsulation material of Yu Suoshu layer 12 expose the positive surface of the semiconductor chip 11 formed it is described absolutely
Edge layer 131 defines the metal wire in forming groove, the groove in the insulating layer 131 by photoetching and etching technics
The position of layer 132 and shape；
The metal line layer 132 5-2) is formed in Yu Suoshu groove.
In another example, the re-wiring layer 13 includes at least two layers metal line layer 132 and at least one layer of institute
Insulating layer 131 is stated, the first capsulation material of Yu Suoshu layer 12 exposes the positive surface of the semiconductor chip 11 and forms cloth again
Line layer 13 includes the following steps:
5-1) the first capsulation material of Yu Suoshu layer 12 exposes the semiconductor chip 11 positive surface formation first layer
The metal line layer 132；
5-2) the first capsulation material of Yu Suoshu layer 12 exposes the semiconductor chip 11 positive surface formation first layer
The insulating layer 131, insulating layer 131 described in first layer encapsulate metal line layer 132 described in first layer, and insulate described in first layer
The upper surface of layer 131 is higher than the upper surface of metal line layer 132 described in first layer；
5-3) form what several layers were electrically connected with metal line layer 132 described in first layer in the insulating layer 131 described in first layer
Other metal line layers 132 of stacked spaced apart arrangement, are electrically connected between the adjacent metal line layer 132 via metal plug.
As an example, in above-mentioned example, the material of the metal line layer 132 can be but be not limited only to copper, aluminium, nickel, gold,
One of silver, titanium material or two kinds and two or more combined materials, and PVD, CVD, sputtering, plating or chemical plating can be used
Etc. techniques form the metal line layer 132.The material of the insulating layer 131 can be low k dielectric；Specifically, described exhausted
Edge layer 131 can be using one of epoxy resin, silica gel, PI, PBO, BCB, silica, phosphorosilicate glass and fluorine-containing glass material
Material, and the insulating layer 131 can be formed using techniques such as spin coating, CVD, plasma enhanced CVDs.
In step 6), S6 step and Fig. 8 in Fig. 1 are please referred to, the second surface of Yu Suoshu re-wiring layer 13 is formed
First electric connection structure 14, the bottom of first electric connection structure 14 are electrically connected with the re-wiring layer 13.
As an example, first electric connection structure 14 can be metal wire or metal column etc., first electrical connection
When structure 14 is metal wire, metal wire can be formed as institute in the second surface of the re-wiring layer 13 using routing technique
State the first electric connection structure 14.
As an example, the material of first electric connection structure 14 can be any one metal material, it is preferable that this reality
It applies in example, the material of first electric connection structure 14 can be copper, gold, silver, nickel, aluminium or tin etc..
In step 7), the S7 step and Fig. 9 to Figure 10 in Fig. 1, the second table of Yu Suoshu re-wiring layer 13 are please referred to
Face forms the second capsulation material layer 15, and the second capsulation material layer 15 is and described by 14 plastic packaging of the first electric connection structure
The top flush on the second capsulation material layer 15 surface far from the re-wiring layer 13 and first electric connection structure 14.
As an example, can be using compressing and forming process, transfer shaping technology, hydraulic seal moulding process, molding bottom
Fill process, capillary underfill technique, vacuum lamination process or spin coating proceeding are in the second surface of the re-wiring layer 13
Form the second capsulation material layer 15.
As an example, the material of the second capsulation material layer 15 can be but be not limited only to polyimides, silica gel, epoxy
Resin, curable polymer-based material or curable resin-based materials etc..
In one example, the height for being initially formed the second capsulation material layer 15 is higher than first electric connection structure 14
Height, i.e., the described second capsulation material layer 15 is by the enveloping plastic packaging completely of first electric connection structure 14, as shown in Figure 9；So
Afterwards, then using techniques such as chemical mechanical grindings part the second capsulation material layer 15 is removed, so that second capsulation material
The upper surface of layer 15 and the top flush of first electric connection structure 14, as shown in Figure 10.
It in another example, can be according to formation second plastic packaging according to the top of first electric connection structure 14
Material layer 15, so that height of the height of the second capsulation material layer 15 formed just with first electric connection structure 14
It is identical.The technique ground to the second capsulation material layer 15 can be saved in this way, to reduce processing step, saved
Cost.
In step 8), S8 step and Figure 11 in Fig. 1 are please referred to, the second capsulation material of Yu Suoshu layer 15 is far from described heavy
The surface of new route layer 13 forms first antenna structure 16, the first antenna structure 16 and first electric connection structure 14
Top electrical connection；The first antenna structure 16 includes antenna 161 and the ground wire 162 positioned at 161 outside of antenna.
In one example, as shown in Figure 10, the first antenna structure 16 includes one layer of metal antenna structure, i.e., the described day
Line 161 and the ground wire 162 are one layer, and the antenna 161 and the ground wire 162 are metal wire；At this point, in described
Two capsulation material layers 15 form the first antenna structure 16 far from the surface of the re-wiring layer 13 method particularly includes: first
First, the second capsulation material of Yu Suoshu layer 15 forms one layer of metal layer far from the surface of the re-wiring layer 13；Then, pass through light
Etching technics is carved by the metallic layer graphic to obtain the metal antenna structure as the first antenna structure 16.
In another example, the first antenna structure 16 can also include double layer of metal antenna structure and one layer of dielectric layer
(not shown), each layer metal antenna structure include the antenna 161 and the ground wire 162, i.e., the described first antenna knot
Structure 16 be include two layers of antenna 161 and two layers of ground wire 162, the ground wire in metal antenna structure described in adjacent two layers
162 electrical connections, at this point, being formed described first day in the second capsulation material layer 15 far from the surface of the re-wiring layer 13
Cable architecture 16 includes the following steps:
8-1) the second capsulation material of Yu Suoshu layer 15 forms first layer metal day far from the surface of the re-wiring layer 13
Cable architecture, antenna structure described in first layer includes the antenna 161 and the ground wire 162；
Metal contact wires (not shown) 8-2) is formed on the metal antenna structure described in first layer, the metal contact wires
Bottom is electrically connected with the ground wire 162 in metal antenna structure described in first layer；
8-3) the second capsulation material of Yu Suoshu layer 15 forms the dielectric layer (not far from the surface of the re-wiring layer 13
Show), the dielectric layer is completely covered metal antenna structure described in first layer and the metal contact wires, and the dielectric layer
The top flush at top and the metal contact wires；
8-4) surface of Yu Suoshu dielectric layer forms second layer metal antenna structure, metal antenna structure packet described in the second layer
The antenna 161 and the ground wire 162 are included, the ground wire 162 in metal antenna structure described in the second layer and the metal connect
The top of wiring is electrically connected.
Certainly, in other examples, the first antenna structure 16 can also include at least three layers of metal antenna knot
Structure has the dielectric layer between metal antenna structure described in adjacent two layers, and in metal antenna structure described in adjacent two layers
The ground wire is electrically connected via metal contact wires.
As an example, in above-mentioned each example, the material of the dielectric layer may include but be not limited only to silica or
PET (polyethylene terephthalate) passes through spin coating, chemical vapor deposition process (CVD), plasma enhanced CVD etc.
Technique is prepared.The material of the antenna 161, the ground wire 162 and each metal contact wires may include but not only limit
In one or more of copper, aluminium, nickel, gold, silver, tin, titanium；Wherein, the antenna 161, the ground wire 162 and each described
Metal contact wires can pass through physical gas-phase deposition (PVD), chemical vapor deposition process (CVD), sputtering, plating or chemistry
One of plating is prepared.
As an example, the antenna 161 can be located at the surface of the semiconductor chip 11.
In step 9), the S9 step and Figure 12 to Figure 13 in Fig. 1 are please referred to, is formed in Yu Suoshu first antenna structure 16
Air cavity configuration 17 and the second electric connection structure 18；The bottom of second electric connection structure 18 and the first antenna structure 16
In the ground wire 162 be electrically connected, the air cavity configuration 17 is located at the periphery of the antenna 161, and the antenna 161 is close
Envelope.
As an example, can provide a tool reeded bonding structure, the size of the groove is greater than the antenna 161
Size, the bonding structure are bonded the antenna being fixed in the first antenna structure 16 by solder or bonding material
161 peripheries are to form the air cavity configuration 17, as shown in figure 12；Have between the antenna 161 and the air cavity configuration 17
There is gap, gap between the two is air.Since loss of the air to the signal of the antenna 161 is zero, by will be described
Antenna 161 is sealed in the air cavity configuration 17, and aerial loss can be effectively reduced, to improve antenna performance.
As an example, the material of the air cavity configuration 17 may include but be not limited only to glass.
As an example, second electric connecting structure 18 can be metal wire or metal column etc., described second is electrically connected binding
It, can be using routing technique in forming metal wire on the ground wire 162 of the first antenna structure 16 when structure 18 is metal wire
As second electric connection structure 18.
As an example, the material of second electric connection structure 18 can be any one metal material, it is preferable that this reality
It applies in example, the material of second electric connection structure 18 can be copper, gold, silver, nickel, aluminium or tin etc..
In step 10), please refers to S10 step in Fig. 1 and the second capsulation material layer 15 of Figure 14 to Figure 15, Yu Suoshu is remote
Surface from the re-wiring layer 13 forms third capsulation material layer 19, and the third capsulation material layer 19 was by described first day
Cable architecture 16, second electric connection structure 18 and 17 plastic packaging of air cavity configuration；The third capsulation material layer 19 is separate
The top flush on the surface of the re-wiring layer 13 and second electric connection structure 18.
As an example, can be using compressing and forming process, transfer shaping technology, hydraulic seal moulding process, molding bottom
Fill process, capillary underfill technique, vacuum lamination process or spin coating proceeding are in the second capsulation material layer 15 far from institute
The surface for stating re-wiring layer 13 forms the third capsulation material layer 19.
As an example, the material of the third capsulation material layer 19 can be but be not limited only to polyimides, silica gel, epoxy
Resin, curable polymer-based material or curable resin-based materials etc..
In one example, the height for being initially formed the third capsulation material layer 19 is higher than second electric connection structure 18
Height, i.e., the described third capsulation material layer 19 is by the enveloping plastic packaging completely of second electric connection structure 18, as shown in figure 14；So
Afterwards, then using techniques such as chemical mechanical grindings the part third capsulation material layer 19 is removed, so that the third capsulation material
The upper surface of layer 19 and the top flush of second electric connection structure 18, as shown in figure 15.
As an example, the third capsulation material layer 19 can by the complete plastic packaging of the air cavity configuration 17, i.e., described
Surface of the three capsulation material layers 19 far from the second capsulation material layer 15 can be higher than the separate institute of the air cavity configuration 17
State the surface of the second capsulation material layer 15.Certainly, in other examples, the third capsulation material layer 19 is far from second modeling
It the surface of closure material layer 15 can also surface flush with the air cavity configuration 17 far from the second capsulation material layer 15.
In step 11), S11 step and Figure 16 in Fig. 1 are please referred to, Yu Suoshu third capsulation material layer 19 is far from described
The surface of second capsulation material layer 15 forms the second antenna structure 20, and second antenna structure 20 is electrically connected binding with described second
The top of structure 18 is electrically connected.
As an example, the material of second antenna structure 20 may include but be not limited only to copper, aluminium, nickel, gold, silver, tin,
One or more of titanium；Wherein, second antenna structure 20 can pass through physical gas-phase deposition (PVD), change
One of gas-phase deposition (CVD), sputtering, plating or chemical plating are prepared in conjunction with etching technics.
As an example, second antenna structure 20 can be dual polarized antenna.Second antenna structure 20 can position
In the outside of the antenna 161, cause to be lost to avoid the aerial signal to the antenna 161.
In step 12), please refer in the first capsulation material layer 12 of S12 step and Figure 17 to Figure 18, Yu Suoshu in Fig. 1
Shape
As an example, including the following steps: in forming the solder projection 21 in the first capsulation material layer 12
12-1) using photoetching and etching technics in formation connection through-hole 121, the company in the first capsulation material layer 12
The first surface that hole 121 exposes the part re-wiring layer 13 is connected, as shown in figure 17, the connection through-hole 121 is located at
The outside of the semiconductor chip 11；
12-2) in forming the solder projection 21 in the connection through-hole 121, the solder projection 21 and the cloth again
Line layer 13 is electrically connected.
In one example, include the following steps: in forming the solder projection 21 in the connection through-hole 121
12-2-1) in forming metal column in the connection through-hole 121, the metal column fills up the connection through-hole 121；
12-2-2) surface of Yu Suoshu metal column forms soldered ball.
As an example, the material of the metal column can for one of copper, aluminium, nickel, gold, silver, titanium material or two kinds and
Two or more combined materials, can by physical gas-phase deposition (PVD), chemical vapor deposition process (CVD), sputtering,
Any technique in plating or chemical plating forms the metal column.The material of the soldered ball can for copper, aluminium, nickel, gold, silver,
One of titanium material or two kinds and two or more combined materials can form the soldered ball by planting ball reflux technique.
In another example, as shown in figure 18, the solder projection 21 is a soldered ball, can be by planting ball reflux technique
Soldered ball is directly formed as the solder projection 21.
Embodiment two
Incorporated by reference to Fig. 2 to Figure 17 with continued reference to Figure 18, the present embodiment also provides a kind of fan-out-type antenna with air chamber
Encapsulating structure, the fan-out-type antenna packages structure with air chamber includes: re-wiring layer 13, the re-wiring layer 13
Including opposite first surface and second surface；Semiconductor chip 11, the semiconductor chip 11 are installed in the rewiring
The first surface of layer 13, and be electrically connected with the re-wiring layer 13；First capsulation material layer 12, the first capsulation material layer
12 are located at the first surface of the re-wiring layer 13, and the semiconductor chip 11 is encapsulated plastic packaging；Second capsulation material layer
15, the second capsulation material layer 15 is located at the second surface of the re-wiring layer 13；First antenna structure 16, described first
Antenna structure 16 is located at the surface of the second capsulation material layer 15 far from the re-wiring layer 13；The first antenna structure
16 include antenna 161 and the ground wire 162 positioned at 161 outside of antenna；First electric connection structure 14, described first is electrically connected binding
Structure 14 is located in the second capsulation material layer 15,13 electricity of one end of first electric connection structure 14 and the re-wiring layer
Connection, the other end are electrically connected with the first antenna structure 16；Air cavity configuration 17, the air cavity configuration 17 are located at described the
On one antenna structure 16, and it is located at the periphery of the antenna 161, the antenna 161 is sealed；Third capsulation material layer 19,
The third capsulation material layer 19 is located at the surface of the second capsulation material layer 15 far from the re-wiring layer 13, and described
Three capsulation material layers 19 are by the first antenna structure 16 and 17 plastic packaging of air cavity configuration；Second antenna structure 20, it is described
Second antenna structure 20 is located at surface of the third capsulation material layer 19 far from the second capsulation material layer 15；Second is electrically connected
Binding structure 18, second electric connection structure 18 are located in the third plastic packaging layer 19, described second electric connection structure, 18 one end
It is electrically connected with second antenna structure 20, the other end is electrically connected with the ground wire 162；Connect through-hole 121, the connection through-hole
121 are located in the first capsulation material layer 12, and expose the first surface of the part re-wiring layer 13；Solder projection
21, the solder projection 21 is located in the connection through-hole 121, and is electrically connected with the re-wiring layer 13.
In one example, the re-wiring layer 13 includes a layer insulating 131 and one layer of metal line layer 132, the gold
Belong to line layer 132 to be located in the insulating layer 131.Certainly, in other examples, the re-wiring layer 13 can also include at least
The laminated construction of two layers of metal line layer 132 and at least one layer of insulating layer 131.
As an example, the material of the metal line layer 132 can be but be not limited only to copper, aluminium, nickel, gold, silver, one in titanium
Kind material or two kinds and two or more combined materials, and the techniques such as PVD, CVD, sputtering, plating or chemical plating can be used and formed
The metal line layer 132.The material of the insulating layer 131 can be low k dielectric.
As an example, the semiconductor chip 11 can be any one existing semiconductor chip, the semiconductor core
Piece 11 includes bare chip 111 and the connection weld pad 112 in the bare chip 111, be could be formed in the bare chip 111
Function element, the connection weld pad 112 are electrically connected with the function element being located in the bare chip 111；The connection weldering
Surface locating for pad 112 is the front of the semiconductor chip 11.
As an example, the material of the first capsulation material layer 12 can be but be not limited only to polyimides, silica gel, epoxy
Resin, curable polymer-based material or curable resin-based materials etc..
As an example, the thickness of the first capsulation material layer 12 can be greater than the thickness of the semiconductor chip 11, this
When, the upper surface of the first capsulation material layer 12 is higher than the upper surface of the semiconductor chip 11；Certainly, first plastic packaging
The thickness of material layer 12 can also be equal to the thickness of the semiconductor chip 11, at this point, the first capsulation material layer 12 is upper
The upper surface flush on surface and the semiconductor chip 11.It can be big with the thickness of the first capsulation material layer 12 in Figure 18
In the semiconductor chip 11 thickness as example.
As an example, the material of the second capsulation material layer 15 can be but be not limited only to polyimides, silica gel, epoxy
Resin, curable polymer-based material or curable resin-based materials etc..The second capsulation material layer 15 is far from institute
State surface and surface flush of first electric connection structure 14 far from the re-wiring layer 13 of re-wiring layer 13.
In one example, the first antenna structure 16 includes one layer of metal antenna structure, i.e., the described antenna 161 and described
Ground wire 162 is one layer, and the antenna 161 and the ground wire 162 are metal wire.
In another example, the first antenna structure 16 can also include double layer of metal antenna structure and one layer of dielectric layer
(not shown), each layer metal antenna structure include the antenna 161 and the ground wire 162, i.e., the described first antenna knot
Structure 16 be include two layers of antenna 161 and two layers of ground wire 162, the ground wire in metal antenna structure described in adjacent two layers
162 electrical connections.
Certainly, in other examples, the first antenna structure 16 can also include at least three layers of metal antenna knot
Structure has the dielectric layer between metal antenna structure described in adjacent two layers, and in metal antenna structure described in adjacent two layers
The ground wire is electrically connected via metal contact wires.
As an example, in above-mentioned each example, the material of the dielectric layer may include but be not limited only to silica or
PET (polyethylene terephthalate) passes through spin coating, chemical vapor deposition process (CVD), plasma enhanced CVD etc.
Technique is prepared.The material of the antenna 161, the ground wire 162 and each metal contact wires may include but not only limit
In one or more of copper, aluminium, nickel, gold, silver, tin, titanium；Wherein, the antenna 161, the ground wire 162 and each described
Metal contact wires can pass through physical gas-phase deposition (PVD), chemical vapor deposition process (CVD), sputtering, plating or chemistry
One of plating is prepared.
As an example, the antenna 161 can be located at the surface of the semiconductor chip 11.
As an example, the material of the air cavity configuration 17 may include but be not limited only to glass.
As an example, first electric connection structure 14 and second electric connecting structure 18 all can be metal wire or metals
Column etc..
As an example, the material of first electric connection structure 14 and second electric connection structure 18 all can be any
A kind of metal material, it is preferable that in the present embodiment, the material of first electric connection structure 14 and second electric connection structure 18
Material all can be copper, gold, silver, nickel, aluminium or tin etc..
As an example, the material of the third capsulation material layer 19 can be but be not limited only to polyimides, silica gel, epoxy
Resin, curable polymer-based material or curable resin-based materials etc..The third capsulation material layer 19 is far from institute
State the surface and surface of second electric connection structure 18 far from the second capsulation material layer 15 of the second capsulation material layer 15
Flush.
As an example, the third capsulation material layer 19 can by the complete plastic packaging of the air cavity configuration 17, i.e., described
Surface of the three capsulation material layers 19 far from the second capsulation material layer 15 can be higher than the separate institute of the air cavity configuration 17
State the surface of the second capsulation material layer 15.Certainly, in other examples, the third capsulation material layer 19 is far from second modeling
It the surface of closure material layer 15 can also surface flush with the air cavity configuration 17 far from the second capsulation material layer 15.
As an example, the material of second antenna structure 20 may include but be not limited only to copper, aluminium, nickel, gold, silver, tin,
One or more of titanium.
As an example, second antenna structure 20 can be dual polarized antenna.Second antenna structure 20 can position
In the outside of the antenna 161, cause to be lost to avoid the aerial signal to the antenna 161.
In one example, the solder projection 21 includes: metal column, and the metal column is located at the first capsulation material layer
In the connection through-hole in 12, and it is electrically connected with the re-wiring layer 13；Soldered ball, the soldered ball are located at the metal column
Surface.The material of the metal column can be one of copper, aluminium, nickel, gold, silver, titanium material or two kinds and two or more groups
Condensation material can pass through physical gas-phase deposition (PVD), chemical vapor deposition process (CVD), sputtering, plating or chemical plating
In any technique form the metal column.The material of the soldered ball can be one of copper, aluminium, nickel, gold, silver, titanium material
Material or two kinds and two or more combined materials can form the soldered ball by planting ball reflux technique.
In another example, the solder projection 21 is soldered ball.
It is described with air chamber in conclusion the fan-out-type antenna packages structure with air chamber of the utility model
Fan-out-type antenna packages structure includes: re-wiring layer, including opposite first surface and second surface；Semiconductor chip, dress
It is electrically connected set on the first surface of the re-wiring layer, and with the re-wiring layer；First capsulation material layer is located at described
The first surface of re-wiring layer, and the semiconductor chip is encapsulated into plastic packaging；Second capsulation material layer is located at the cloth again
The second surface of line layer；First antenna structure, positioned at the surface of the second capsulation material layer far from the re-wiring layer；Institute
Stating first antenna structure includes antenna and the ground wire on the outside of the antenna；First electric connection structure is located at second modeling
In closure material layer, one end is electrically connected with the re-wiring layer, and the other end is electrically connected with the first antenna structure；Air chamber knot
Structure is located in the first antenna structure, and is located at the periphery of the antenna, by the day linear sealing；Third capsulation material
Layer, positioned at the surface of the second capsulation material layer far from the re-wiring layer, the third capsulation material layer is by described the
One antenna structure and the air cavity configuration plastic packaging；Second antenna structure is located at the third capsulation material layer far from described the
The surface of two capsulation material layers；Second electric connection structure is located in the third plastic packaging layer, one end and second antenna structure
Electrical connection, the other end are electrically connected to ground with described；Through-hole is connected, is located in the first capsulation material layer, and expose part
The first surface of the re-wiring layer；Solder projection is located in the connection through-hole, and is electrically connected with the re-wiring layer
It connects.The utility model forms the air cavity configuration for surrounding encapsulated antenna by the antenna periphery in first antenna structure, due to
Air is zero to the loss of aerial signal, and aerial loss can be effectively reduced, to improve antenna performance；Second layer antenna structure
Using dual polarized antenna, the antenna periphery that second layer antenna structure can be set in first layer antenna structure, to avoid
Second layer antenna structure causes to be lost to the signal of first layer antenna structure；By the way that semiconductor chip is set to re-wiring layer
Side far from first antenna structure and the second antenna structure, re-wiring layer can stop antenna to the noise of semiconductor chip
Interference, to improve the performance of semiconductor chip.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (6)
1. a kind of fan-out-type antenna packages structure with air chamber, which is characterized in that the fan-out-type day with air chamber
Wire encapsulation construction includes:
Re-wiring layer, including opposite first surface and second surface；
Semiconductor chip is installed in the first surface of the re-wiring layer, and is electrically connected with the re-wiring layer；
First capsulation material layer encapsulates plastic packaging positioned at the first surface of the re-wiring layer, and by the semiconductor chip；
Second capsulation material layer, positioned at the second surface of the re-wiring layer；
First antenna structure, positioned at the surface of the second capsulation material layer far from the re-wiring layer；The first antenna
Structure includes antenna and the ground wire on the outside of the antenna；
First electric connection structure is located in the second capsulation material layer, and one end is electrically connected with the re-wiring layer, the other end
It is electrically connected with the first antenna structure；
Air cavity configuration is located in the first antenna structure, and is located at the periphery of the antenna, by the day linear sealing；
Third capsulation material layer, positioned at the surface of the second capsulation material layer far from the re-wiring layer, the third modeling
Closure material layer is by the first antenna structure and the air cavity configuration plastic packaging；
Second antenna structure, the surface positioned at the third capsulation material layer far from the second capsulation material layer；
Second electric connection structure, be located at the third plastic packaging layer in, one end is electrically connected with second antenna structure, the other end and
It is described to be electrically connected to ground；
Through-hole is connected, is located in the first capsulation material layer, and expose the first surface of the part re-wiring layer；
Solder projection is located in the connection through-hole, and is electrically connected with the re-wiring layer.
2. the fan-out-type antenna packages structure according to claim 1 with air chamber, which is characterized in that the sealing is empty
Surface of the air cavity structure far from the second capsulation material layer and the third capsulation material layer are far from second capsulation material
The surface flush of layer.
3. the fan-out-type antenna packages structure according to claim 1 with air chamber, which is characterized in that described second day
Cable architecture includes dual polarized antenna.
4. the fan-out-type antenna packages structure according to claim 3 with air chamber, which is characterized in that described second day
Cable architecture is located at the outside of the antenna.
5. the fan-out-type antenna packages structure according to claim 1 with air chamber, which is characterized in that the antenna position
In the surface of the semiconductor chip.
6. the fan-out-type antenna packages structure according to claim 1 with air chamber, which is characterized in that first electricity
Connection structure includes metal lead wire or metal column；Second electric connection structure includes metal lead wire or metal column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822037827.6U CN208938964U (en) | 2018-12-06 | 2018-12-06 | Fan-out-type antenna packages structure with air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822037827.6U CN208938964U (en) | 2018-12-06 | 2018-12-06 | Fan-out-type antenna packages structure with air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208938964U true CN208938964U (en) | 2019-06-04 |
Family
ID=66728399
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822037827.6U Active CN208938964U (en) | 2018-12-06 | 2018-12-06 | Fan-out-type antenna packages structure with air chamber |
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| Country | Link |
|---|---|
| CN (1) | CN208938964U (en) |
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2018
- 2018-12-06 CN CN201822037827.6U patent/CN208938964U/en active Active
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Address after: No.78 Changshan Avenue, Jiangyin City, Wuxi City, Jiangsu Province (place of business: No.9 Dongsheng West Road, Jiangyin City) Patentee after: Shenghejing micro semiconductor (Jiangyin) Co.,Ltd. Address before: No.78 Changshan Avenue, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: SJ Semiconductor (Jiangyin) Corp. |
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