CN207014920U - A kind of coloured ultra-thin cover layer of high frequency - Google Patents
A kind of coloured ultra-thin cover layer of high frequency Download PDFInfo
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- CN207014920U CN207014920U CN201720169483.7U CN201720169483U CN207014920U CN 207014920 U CN207014920 U CN 207014920U CN 201720169483 U CN201720169483 U CN 201720169483U CN 207014920 U CN207014920 U CN 207014920U
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- pigmented ink
- low dielectric
- ink layer
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Abstract
The utility model discloses a kind of coloured ultra-thin cover layer of high frequency, including upper release layer, pigmented ink layer, low dielectric glue-line and lower release layer, the pigmented ink layer is between the upper release layer and the low dielectric glue-line, and the low dielectric glue-line is between the pigmented ink layer and the lower release layer；The thickness sum of both the pigmented ink layer and the low dielectric glue-line is 4 35 μm, wherein, the thickness of the pigmented ink layer is 1 10 μm, and the thickness of the low dielectric glue-line is 3 25 μm.Manufacture method of the present utility model is simple, and with extremely low dielectric constant and loss, extremely low ion transport, good adhesion, high-cooling property, high flexibility and low bounce-back power, can low temperature process, be particularly suitable for using in current line width line-spacing is less than the high-frequency high-speed of 35/35 μm of High Density Packaging, superfine wire circuit.
Description
Technical field
The utility model belongs to FPC (printed circuit board (PCB)) covering technical field of membrane, coloured more particularly to a kind of high frequency
Ultra-thin cover layer.
Background technology
Electronic system is towards compact, high-fire resistance, multifunctionality, densification, high reliability and low cost at present
Direction develop, and functionally, then need powerful and high-speed signal to transmit.In high frequency field, radio infrastructure needs to carry
For sufficiently low Insertion Loss, lower dielectric constant and loss, energy utilization rate can be just effectively improved.With 5G epoch and USB3.1
Arrive etc. application demand, radio frequency products needs to provide broader bandwidth, and backward compatible 3G, 4G business.On current market
The material of cover layer commonly uses black polyamide thin film, in the design of slimming, is black in place of its bottleneck
The thickness that polyimides makes less than 5 μm has great difficulty and process operation is bad, and using epoxy resin then
Its ionic purity of agent is bad, electrically bad, with high costs, these all cause cover layer be difficult to tackle current superfine wire circuit and
The trend of high-frequency high-speed transmission.And the coloured high frequency cover layer of another ink type, it is sub- using the ultra-thin polyamides of 5-7.5 μm of yellow
Amine film coated colored ink, the method similarly have the problem of cost is high, thickness is larger.
In view of this, there is dealer to research and develop a kind of cover layer, disclosure satisfy that the design of current graph thinning circuit, and meet that it is high
Heat resistance, multifunctionality, densification, the developing direction of high reliability and low cost, and functionally need powerful and high
The demand of fast signal transmission.
Utility model content
The utility model is of the present utility model mainly solving the technical problems that provide a kind of high frequency coloured ultra-thin cover layer
Manufacture method is simple, and with extremely low dielectric constant and loss, extremely low ion transport, good adhesion, high radiating
Property, high flexibility and low bounce-back power, can low temperature process, be particularly suitable for being less than in current line width line-spacing 35/35 μm of high density group
Used in the high-frequency high-speed of dress, superfine wire circuit.
In order to solve the above technical problems, the technical scheme that the utility model uses is：It is coloured super to provide a kind of high frequency
Thin cover layer, including upper release layer, pigmented ink layer, low dielectric glue-line and lower release layer, the pigmented ink layer is positioned at described
Between upper release layer and the low dielectric glue-line, the low dielectric glue-line be located at the pigmented ink layer and the lower release layer it
Between；
The thickness sum of both the pigmented ink layer and the low dielectric glue-line is 4-35 μm, wherein, the coloured oil
The thickness of layer of ink is 1-10 μm, and the thickness of the low dielectric glue-line is 3-25 μm.
Further say, the low dielectric glue-line is that Dk values are 2.4-2.8 (10GHz) and Df values are 0.002-0.006
The glue-line of (10GHz).
Further say, the thickness of the pigmented ink layer is 3-5 μm, and the thickness of the low dielectric glue-line is 3-10 μm.
Further say, the pigmented ink layer is one kind in following two kinds of structures：
First, the pigmented ink layer is single layer structure；
2nd, the pigmented ink layer is the sandwich construction of at least two layers composition.
Further say, the pigmented ink layer is double-decker, including the first pigmented ink layer and the second colored ink
The thickness of layer, first pigmented ink layer and second pigmented ink layer is all 2-3 μm.
Further say, the low dielectric glue-line is the glue-line that water absorption rate is 0.05-0.2%.
Further say, the upper release layer is polypropylene release layer, Biaxially oriented polypropylene release layer or poly- to benzene two
Formic acid glycol ester release layer.
Further say, the lower release layer is polypropylene release layer, Biaxially oriented polypropylene release layer or poly- to benzene two
Formic acid glycol ester release layer.
The beneficial effects of the utility model are：The utility model include upper release layer, pigmented ink layer, low dielectric glue-line and
Totally four layers of lower release layer, it is rational in infrastructure, therefore the utility model at least has advantages below：
First, the utility model uses low dielectric glue-line, and low dielectric is 2.4-2.8 and Df compared with Dk (dielectric constant) value of layer
(dielectric loss factor) value is 0.002-0.006, and Dk/Df values are relatively low, can reduce the loss in signals transmission, further carry
High RST transmission quality, is entirely capable of that competent FPC high-frequency high-speeds, radiating heat conduction is rapid and cost minimization development
Demand；
2nd, contain water-absorbing material in the low dielectric glue-line of the utility model, make it have relatively low water absorption rate (0.05-
0.2%), stable performance after water suction, there is preferable electric property, signal transmission insertion loss can be reduced；
3rd, low dielectric glue-line of the present utility model is due to extremely low and stable under high temperature humidity environment Dk/
Df values so that the utility model is adapted to low temperature (being less than 190 DEG C) solidification, and technique processability is strong, and requires low to making apparatus,
And then reduce production cost；
4th, the utility model has relatively low bounce, is adapted to downstream High Density Packaging processing procedure；
5th, the thickness sum of both the utility model pigmented ink layer and low dielectric glue-line is minimum up to 5-7 μm, at present
The design requirement of FPC graph thinning circuits.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model individual layer pigmented ink layer；
Fig. 2 is the structural representation of the utility model bilayer pigmented ink layer；
Each several part mark is as follows in accompanying drawing：
The upper release layers of 100-；
200- pigmented ink layers；
The pigmented ink layers of 201- first, the pigmented ink layers of 202- second；
The low dielectric glue-lines of 300-；
Release layer under 400-.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
Embodiment：A kind of coloured ultra-thin cover layer of high frequency, as shown in figure 1, including upper release layer 100, pigmented ink layer
200th, low dielectric glue-line 300 and lower release layer 400, the pigmented ink layer 200 are located at the upper release layer 100 and low Jie
Between electric glue-line 300, the low dielectric glue-line 300 is between the pigmented ink layer 200 and the lower release layer 400；
Both thickness sums of the pigmented ink layer 200 and the low dielectric glue-line 300 are 4-35 μm, wherein, it is described
The thickness of pigmented ink layer 200 is 1-10 μm, and the thickness of the low dielectric glue-line 300 is 3-25 μm.
The low dielectric glue-line 300 is the glue that Dk values are 2.4-2.8 (10GHz) and Df values are 0.002-0.006 (10GHz)
Layer.
The thickness of the pigmented ink layer 200 is 3-5 μm, and the thickness of the low dielectric glue-line 300 is 3-10 μm.
The pigmented ink layer 200 is one kind in following two kinds of structures：
First, the pigmented ink layer is single layer structure；
2nd, the pigmented ink layer is the sandwich construction of at least two layers composition.
As shown in Fig. 2 the pigmented ink layer 200 is double-decker, including the first pigmented ink layer 201 and second is coloured
The thickness of ink layer 202, first pigmented ink layer 201 and second pigmented ink layer 202 is all 2-3 μm.First has
The double-layer overlapped structure of color ink layer and the second pigmented ink layer, advantageously accounts for micropore problem present in coating process.
The low dielectric glue-line 300 is the glue-line that water absorption rate is 0.05-0.2%.
The upper release layer 100 is polypropylene release layer, Biaxially oriented polypropylene release layer or poly terephthalic acid second two
Alcohol ester release layer.
The lower release layer 400 is polypropylene release layer, Biaxially oriented polypropylene release layer or poly terephthalic acid second two
Alcohol ester release layer.
Embodiment 1- embodiments 4 for the coloured ultra-thin cover layer of the utility model high frequency specifically folded structure displaying, and with it is existing
FPC plates carry out basic performance comparison, as a result such as table 1：
Table 1
As shown in Table 1, the coloured ultra-thin cover layer of high frequency of the present utility model has the higher coefficient of heat conduction, relatively low heat
Conduction efficiency, relatively low breakdown voltage resistant and relatively low Dk/Df values.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other correlations
Technical field, similarly it is included in scope of patent protection of the present utility model.
Claims (8)
- A kind of 1. coloured ultra-thin cover layer of high frequency, it is characterised in that：Including upper release layer, pigmented ink layer, low dielectric glue-line and Lower release layer, the pigmented ink layer is between the upper release layer and the low dielectric glue-line, the low dielectric glue-line position Between the pigmented ink layer and the lower release layer；The thickness sum of both the pigmented ink layer and the low dielectric glue-line is 4-35 μm, wherein, the pigmented ink layer Thickness be 1-10 μm, the thickness of the low dielectric glue-line is 3-25 μm.
- A kind of 2. coloured ultra-thin cover layer of high frequency according to claim 1, it is characterised in that：The low dielectric glue-line is Dk It is worth the glue-line for being 0.002-0.006 for 2.4-2.8 and Df values.
- A kind of 3. coloured ultra-thin cover layer of high frequency according to claim 1, it is characterised in that：The thickness of the pigmented ink layer Spend for 3-5 μm, the thickness of the low dielectric glue-line is 3-10 μm.
- A kind of 4. coloured ultra-thin cover layer of high frequency according to claim 1, it is characterised in that：Under the pigmented ink layer is State one kind in two kinds of structures：First, the pigmented ink layer is single layer structure；2nd, the pigmented ink layer is the sandwich construction of at least two layers composition.
- A kind of 5. coloured ultra-thin cover layer of high frequency according to claim 4, it is characterised in that：The pigmented ink layer is double Rotating fields, including the first pigmented ink layer and the second pigmented ink layer, first pigmented ink layer and the second coloured oil The thickness of layer of ink is all 2-3 μm.
- A kind of 6. coloured ultra-thin cover layer of high frequency according to claim 1, it is characterised in that：The low dielectric glue-line is to inhale Water rate is 0.05-0.2% glue-line.
- A kind of 7. coloured ultra-thin cover layer of high frequency according to claim 1, it is characterised in that：The upper release layer is poly- third Alkene release layer, Biaxially oriented polypropylene release layer or polyethylene terephthalate release layer.
- A kind of 8. coloured ultra-thin cover layer of high frequency according to claim 1, it is characterised in that：The lower release layer is poly- third Alkene release layer, Biaxially oriented polypropylene release layer or polyethylene terephthalate release layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169483.7U CN207014920U (en) | 2017-02-24 | 2017-02-24 | A kind of coloured ultra-thin cover layer of high frequency |
| TW106213090U TWM553544U (en) | 2017-02-24 | 2017-09-04 | Membrane thin color film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169483.7U CN207014920U (en) | 2017-02-24 | 2017-02-24 | A kind of coloured ultra-thin cover layer of high frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207014920U true CN207014920U (en) | 2018-02-16 |
Family
ID=61229485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720169483.7U Active CN207014920U (en) | 2017-02-24 | 2017-02-24 | A kind of coloured ultra-thin cover layer of high frequency |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207014920U (en) |
| TW (1) | TWM553544U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504294A (en) * | 2017-02-24 | 2018-09-07 | 昆山雅森电子材料科技有限公司 | A kind of coloured ultra-thin cover film of high frequency and preparation method |
-
2017
- 2017-02-24 CN CN201720169483.7U patent/CN207014920U/en active Active
- 2017-09-04 TW TW106213090U patent/TWM553544U/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TWM553544U (en) | 2017-12-21 |
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