CN103419436B - A kind of double plate and preparation method thereof - Google Patents
A kind of double plate and preparation method thereof Download PDFInfo
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- CN103419436B CN103419436B CN201310304158.3A CN201310304158A CN103419436B CN 103419436 B CN103419436 B CN 103419436B CN 201310304158 A CN201310304158 A CN 201310304158A CN 103419436 B CN103419436 B CN 103419436B
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- plate
- single sided
- mould release
- release membrance
- steel plate
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Abstract
The present invention relates to copper-clad plate technical field, especially a kind of double plates and preparation method thereof；Including mould release membrance and two pieces of single sided boards, described two pieces of single sided boards are separately positioned on described mould release membrance both sides, this pair of plate breaks traditions the pattern of plate one product, using two pieces of laminates as a construction unit product, stacks mode by symmetry unlike the prior art and carry out pressing during preparation；This preparation method can not only fully meet the requirement of lamination, substantially improve slab warping problem in traditional preparation methods, and save the consumption of mirror steel plate and mould release membrance, save production cost, save the time peeling off mould release membrance, thus saved the time of whole production process, improve integral production efficiency.
Description
Technical field
The present invention relates to copper-clad plate technical field, especially a kind of double plates and preparation method thereof.
Background technology
At present, the stacked system i.e. lower hot supporting plate in the same opening of press of existing single sided board lamination sets
Put cushion, be sequentially stacked mirror steel plate, mould release membrance, prepreg, Copper Foil, mirror the most on the buffer layer
Face steel plate, so circulation repeat to be stacked, and place into press and carry out hot-press solidifying and cooling and mould unloading, split out minute surface
Steel plate, removes mould release membrance and all can obtain multiple finished product single sided boards.
Overlapping row's plate mode of above-mentioned this routine, meets the lamination production requirement of multiple single sided boards general,
But the superposition of this routine row plate mode have the disadvantage that due to the stacking method of single sided board be individual or
The two sides of multiple prepreg stacked structures is folded respectively joins mould release membrance and Copper Foil, thus forms asymmetric sandwich knot
Structure.In hot pressing and two lamination stages of cooling of single sided board, due to prepreg both sides mould release membrance and Copper Foil
Thermal deformation differs greatly, and thus causes the stress on single sided board two sides difference occur, when splitting out mirror steel plate, goes
After mould release membrance, the problem creating single sided board warpage.The warpage of single sided board can badly influence downstream PCB
Working (machining) efficiency and product quality.
Additionally this stacking method often produces a single-side coated copper plate and is accomplished by a mould release membrance and a minute surface steel
Plate, mirror steel plate needs circulation cleaning to use, and mould release membrance can not be continuing with after removing, produce into generally
This consuming is big.
Summary of the invention
For above-mentioned the deficiencies in the prior art, an object of the present invention, it is provided that a kind of double plates, this pair of plate
Break traditions the pattern of plate one product, using two pieces of single sided boards as a construction unit product, specifically makes
Used time, the mould release membrance in the middle of double plates is stripped down and i.e. can get two single sided boards without warpage issues.
The two of the purpose of the present invention, it is provided that the preparation method of described pair of plate, the method can not only fully meet
The requirement of lamination, has saved the consumption of half mirror steel plate and mould release membrance, has been greatly saved life in preparation process
Produce cost.
To achieve these goals, technical scheme is as follows:
A kind of double plate, including mould release membrance and two pieces of single sided boards, described single sided board is that a side cover of prepreg sets
The Copper Foil, the structure of described pair of plate is had to be: Copper Foil/prepreg/mould release membrance/prepreg/Copper Foil.
It is preferred that the prepreg thickness of described single sided board is between 0.025mm～0.600mm, two minute surfaces
If construction unit in the middle of steel plate is blocked up, then the melted gummosis of prepreg dielectric layer in lamination process
Greatly, easy slide plate, and the gummosis of corner is more than the gummosis of mid portion, is unfavorable for that single sided board is in uniform thickness
Control, so the prepreg thickness of single sided board more preferably controls within 0.600mm.The half of single sided board is solid
The reinforcing material changed in sheet is glass-fiber-fabric, paper substrate or composite.
The preparation method of described pair of plate, first by described pair of plate and mirror steel plate successively according to: mirror steel plate/bis-plate/
Mirror steel plate/bis-plate ... the order of/mirror steel plate stacks, and obtains board component；Then the plate group that will stack
Part is put into hot press and is carried out hot-press solidifying molding, removes mirror steel plate and just can get described in multiple after cooling and mould unloading
Double plates.
It is preferred that the process conditions of described hot press hot-press solidifying are: pressure is 10kg/cm2～35kg/cm2,
Can substep repeatedly adherence pressure；Temperature is progressively warming up to according to the heating rate of 1 DEG C/min～3 DEG C/min from room temperature
Solidification temperature, solidification temperature is determined by formula for a product, typically between 160 DEG C～190 DEG C.
The present invention includes that mould release membrance and two pieces of single sided boards, described two pieces of single sided boards are separately positioned on described mould release membrance
Both sides.Traditional construction unit product is that a laminate covers a mould release membrance, during use, needs one by one
Tearing mould release membrance, the present invention is two laminates to add a mould release membrance sell as a construction unit product,
Change the configuration selling product, when downstream uses, peel off a mould release membrance and i.e. can obtain two pieces of lists
Panel, decreases the mould release membrance consumption of 50%；In industrialized production, it is release that this structure has saved stripping
The time of film, also save on the time of whole production process, improve integral production efficiency.
In preparation process, the board component that tradition stacks is: mirror steel plate/Copper Foil/prepreg/mould release membrance/minute surface
Steel plate, and the present invention is mirror steel plate/Copper Foil/prepreg/mould release membrance/prepreg/Copper Foil/mirror steel plate, one
Aspect, also reduces the mirror steel plate consumption of 50% in preparation process, is greatly saved production cost；Separately
For the dissymmetrical structure of the Copper Foil/prepreg/mould release membrance of the most relatively conventional single sided board, Copper Foil/half is solid
The folded distribution structure changing sheet/mould release membrance/prepreg/Copper Foil is symmetric, in hot pressing temperature-rise period and cooling down
During will not produce the asymmetric thermal deformation difference caused of structure and cause single sided board that warpage issues occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention,
The structural representation that when Fig. 2 is pressing in preparation method of the present invention, plate stacks,
Fig. 3 is the structural representation of existing single sided board,
The structural representation that when Fig. 4 is existing single sided board pressing, plate stacks.
Detailed description of the invention
Below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear,
It is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole
Embodiment.
Embodiment
A kind of double plate, is shown in Fig. 1, and including mould release membrance 1 and two pieces of single sided boards 2, described two pieces of single sided boards 2 are arranged
In described mould release membrance 1 both sides；The structure of described single sided board 2 is: Copper Foil 21/ prepreg 22, described pair of plate
Structure be: Copper Foil 21/ prepreg 22/ mould release membrance 1/ prepreg 22/ Copper Foil 21, wherein prepreg can
To be individual, it is also possible to be that multiple are formed by stacking.
The preparation method of described pair of plate, first by described pair of plate and mirror steel plate 3 successively according to mirror steel plate 3 bronze medal
Paper tinsel 21/ prepreg 22/ mould release membrance 1/ prepreg 22/ Copper Foil 21/ mirror steel plate 3/ Copper Foil 21/ prepreg
22/ mould release membrance 1/ prepreg 22/ Copper Foil 21 ... the order of/mirror steel plate 3 stacks, and sees Fig. 2；Then
The board component stacked being put into hot press and carries out hot-press solidifying molding, in hot-press solidifying, substep repeatedly promotes pressure
Power is until pressure is 30kg/cm2；Temperature is progressively warming up to solidification temperature from room temperature according to the heating rate of 2 DEG C/min
Degree, solidification Wen Weidu is determined by formula for a product, typically between 160 DEG C～190 DEG C.After solidification, withdraw mirror
Face steel plate 2, obtains described pair of plate.
Comparative example
Single sided board 2 of the prior art, is shown in Fig. 3, and its structure is: Copper Foil 21/ prepreg 22/ mould release membrance 1.
In traditional preparation methods, during hot-press solidifying, it stacks order and sees that Fig. 4 is: mirror steel plate 3/ mould release membrance 1/ half
Cured sheets 22/ Copper Foil 21/ mirror steel plate 3/ mould release membrance 1/ prepreg 22/ Copper Foil 21/ mirror steel plate 3 .../minute surface
Steel plate 3.Other techniques are the common knowledge of those skilled in the art, and here is omitted.
The present invention is compared with comparative example: from the structure as a construction unit product, this
Obviously show and saved mould release membrance consumption；In industrialized production, this structure saved peel off mould release membrance time
Between, also save on the time of whole production process, improve integral production efficiency.From the point of view of preparation method:
The present invention has not only saved the consumption of mirror steel plate, and the stacked configuration of symmetry improves obtained product
Warpage issues.Single sided board obtained by the present invention is entered with the single sided board obtained by comparative example (prior art)
Row warpage contrast test (single sided board is cut into 300mm*300mm, and survey by the black marble being placed on level
Test stand, uses feeler gauge to test out depth of camber, more i.e. obtains angularity divided by length.), the present invention peels off
Mould release membrance in double plates, obtains two single sided boards, detects the angularity of two single sided boards respectively, be 0.75% respectively
With 0.85%；The angularity of the single sided board obtained by comparative example (prior art), reaches 2.1%.Visible
Significantly improve slab warping problem in traditional preparation methods.
The above disclosed the preferred embodiments of the present invention that are only, can not limit the power of the present invention with this certainly
Profit scope, the equivalent variations therefore done according to scope of the present invention patent, still belong to the model that the present invention is contained
Enclose.
Claims (2)
1. the preparation method of double plates, it is characterised in that first will described pair of plate and mirror steel plate successively according to:
Mirror steel plate/bis-plate/mirror steel plate/bis-plate ... the order of/mirror steel plate stacks, and obtains board component；Then
The board component stacked is put into hot press and carries out hot-press solidifying molding, after solidification, remove mirror steel plate and obtain
Multiple described pair of plates；
The process conditions of described hot press hot-press solidifying: pressure is 10kg/cm2～35kg/cm2, solidification temperature is
160 DEG C～190 DEG C；
Described hot press is progressively warming up to solidification temperature from room temperature according to the heating rate of 1 DEG C/min～3 DEG C/min；
Described pair of plate, including mould release membrance and two pieces of single sided boards, described two pieces of single sided boards be separately positioned on described from
Type film both sides: described single sided board is that Copper Foil is stamped in the side of prepreg, and the structure of described pair of plate is: Copper Foil/
Prepreg/mould release membrance/prepreg/Copper Foil；
The prepreg thickness of described single sided board is at 0.025mm～0.46mm；In the prepreg of described single sided board
Reinforcing material be glass-fiber-fabric, paper substrate or composite.
2. the preparation method of the most double plates, it is characterised in that: described hot press hot-press solidifying
Pressure is substep repeatedly adherence pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304158.3A CN103419436B (en) | 2013-07-17 | 2013-07-17 | A kind of double plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304158.3A CN103419436B (en) | 2013-07-17 | 2013-07-17 | A kind of double plate and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103419436A CN103419436A (en) | 2013-12-04 |
| CN103419436B true CN103419436B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310304158.3A Active CN103419436B (en) | 2013-07-17 | 2013-07-17 | A kind of double plate and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801323A (en) * | 2016-08-31 | 2018-03-13 | 生益电子股份有限公司 | The lamination layup method and its circuit board of unsymmetric structure multilayer circuit board |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248685A (en) * | 1988-03-30 | 1989-10-04 | Shin Kobe Electric Mach Co Ltd | Manufacture of single-sided metallic-foil-clad laminated board and manufacture of single-sided printed circuit board |
| CN102009513A (en) * | 2010-07-21 | 2011-04-13 | 广东生益科技股份有限公司 | Insulating reinforced plate and making method thereof |
| CN102573337A (en) * | 2010-12-30 | 2012-07-11 | 北大方正集团有限公司 | Manufacturing method of multilayer circuit board, laminating device and multilayer circuit board |
| CN102909912A (en) * | 2012-10-25 | 2013-02-06 | 广东生益科技股份有限公司 | Insulating plate and preparation method thereof |
| CN203381274U (en) * | 2013-07-17 | 2014-01-08 | 广东生益科技股份有限公司 | Double plate |
-
2013
- 2013-07-17 CN CN201310304158.3A patent/CN103419436B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248685A (en) * | 1988-03-30 | 1989-10-04 | Shin Kobe Electric Mach Co Ltd | Manufacture of single-sided metallic-foil-clad laminated board and manufacture of single-sided printed circuit board |
| CN102009513A (en) * | 2010-07-21 | 2011-04-13 | 广东生益科技股份有限公司 | Insulating reinforced plate and making method thereof |
| CN102573337A (en) * | 2010-12-30 | 2012-07-11 | 北大方正集团有限公司 | Manufacturing method of multilayer circuit board, laminating device and multilayer circuit board |
| CN102909912A (en) * | 2012-10-25 | 2013-02-06 | 广东生益科技股份有限公司 | Insulating plate and preparation method thereof |
| CN203381274U (en) * | 2013-07-17 | 2014-01-08 | 广东生益科技股份有限公司 | Double plate |
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| Publication number | Publication date |
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| CN103419436A (en) | 2013-12-04 |
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