CN205648184U - Reinforcing member, supply are with component, wiring substrate and subassembly - Google Patents

Abstract

The utility model relates to a reinforcing member, supply are with component, wiring substrate and subassembly. A subassembly that can restrain the warping reinforcing member, contain the reinforcing member for supply component, possess the wiring substrate of reinforcing member and possess the wiring substrate is provided. The component strengthened is carried out to the piece in reinforcing member (20), has resin sheet (21) and disposes weave (22) in resin sheet (21). It intersects with length direction's (DL) along reinforcing member (20) line separately to weave warp (23) and weft (24) of (22).

Description

Stiffener, supply component, wiring substrate and assembly

Technical field

This utility model relates to strengthening the stiffener of the sheets such as printed wiring base material, comprising reinforcement The supply component of component, possess the wiring substrate of stiffener and possess wiring substrate Assembly.

Background technology

The known printed wiring base material being provided with stiffener.Stiffener is installed on printing cloth Line base material requires the part of rigidity.Such as, during stiffener is installed on printed wiring base material Be provided with the part of electronic unit the inside, connect have the connection members such as adapter part, Require the part etc. of flatness.

But, when installing stiffener on printed wiring base material, the peace when heating sometimes Part warpage equipped with stiffener.Such as, Patent Document 1 discloses gold is installed Belong to the part warpage of the reinforcement (stiffener) of system.

Prior art literature

Patent documentation

Patent documentation 1: JP 2010-109318 publication

As shown in Fig. 6 (a) and Fig. 6 (b), such warpage is at printed wiring base material 10A In resinous stiffener 20A is installed in the case of also produce.Particularly using bag In the case of stiffener 20A containing the 22A that weaves cotton cloth, its buckling amplitude becomes big sometimes.

Utility model content

Therefore it provides the supply structure that the stiffener of warpage can be suppressed, comprise stiffener Part, possess the wiring substrate of stiffener and possess the assembly of wiring substrate.

Stiffener of the present utility model is the stiffener strengthening sheet, and its feature exists In, there is resin sheet and be configured at weaving cotton cloth in described resin sheet, described in the line weaved cotton cloth each Intersect with the line of the length direction along described stiffener.

According to above-mentioned stiffener, can suppress to be provided with the warpage of the component of stiffener.

Accompanying drawing explanation

Fig. 1 be (a) be the top view of assembly, (b) is the side view of assembly.

Fig. 2 (a) is the top view of stiffener, b) is adding of the line A-A along (a) The sectional view of strong component.

Fig. 3 is the top view representing supply component.

Fig. 4 is the figure of the mean breadth for stiffener is described, (a) is to represent reinforcement The figure of the width on the 1st direction of component, (b) is the 2nd direction representing stiffener On the figure of width.

Fig. 5 is to represent the length direction of stiffener and parallel and the extending direction of warp The figure of relation.

Fig. 6 (a) is the top view of existing wiring substrate, and (b) is the X along (a) The sectional view of the wiring substrate of-x-ray.

Description of reference numerals

1: assembly

2: electronic unit

3: wiring substrate

4: supply component

4a: supporting part

10: printed wiring base material

10A: printed wiring base material

20: stiffener

20A: stiffener

21: resin sheet

22: weave cotton cloth

22A: weave cotton cloth

23: warp

24: parallel

25: constitute line

θ 1: the 1 angle

θ 2: the 2 angle

DL: length direction.

Detailed description of the invention

[explanation of embodiment of the present utility model]

First row remember that embodiment of the present utility model illustrates.(1) embodiment Stiffener is the stiffener strengthening sheet, it is characterised in that have resin sheet and Be configured at weaving cotton cloth in described resin sheet, described in the line weaved cotton cloth each with along described reinforcement structure The line of the length direction of part intersects.According to this composition, because the line weaved cotton cloth is each relative to edge The line of the length direction stiffener is not configured to parallel, so can suppress by stiffener The warpage of the reinforcing section strengthened.That is, stiffener suppression is provided with the structure of this stiffener The warpage of part.

(2) in above-mentioned stiffener, it is characterised in that the length of described stiffener Direction is average wide described in the mean breadth of regulation in all directions of described stiffener Spend the direction at the longest position.According to the definition of this length direction, even if at stiffener In the case of complex contour, it is also possible to preseting length direction clearly.

(3) in above-mentioned stiffener, it is characterised in that described in weave cotton cloth by warp and latitude Line is constituted, the extending direction of described warp or the extending direction of described parallel and described reinforcement Angle between the length direction of component is more than 30 degree and less than 60 degree.According to this composition, Can more suppress the warpage of the reinforcing section strengthened by stiffener.

(4) supply component is characterised by comprising above-mentioned stiffener.According to this structure Become, compared with situation about supplying with (not assembling dispersible state) in bulk with stiffener, Operation when being installed to by stiffener on printed wiring base material becomes simple.

(5) wiring substrate is characterized by above-mentioned stiffener.

According to this composition, the reinforcing section that can suppress to be strengthened by stiffener in wiring substrate Warpage.

(6) assembly is characterised by possessing above-mentioned wiring substrate.In printed wiring base material by The warpage of the reinforcing section that stiffener is strengthened diminishes.Therefore, have easily by electronic unit peace Install to the effect of reinforcing section or easily attach components to the effect in shell.That is, The productivity ratio of this assembly is excellent.

[details of embodiment of the present utility model]

About embodiment stiffener, the supply component comprising stiffener, possess The wiring substrate of stiffener and possess the assembly of wiring substrate, below with reference to attached Figure is while illustrating its concrete example.Illustrate additionally, this utility model is not limited to these, and By the Range Representation that is claimed it is intended to encompass the meaning equal with the scope being claimed With this be claimed in the range of all changes.

With reference to Fig. 1 (a) and Fig. 1 (b), assembly 1 is illustrated.Assembly 1 possesses: Printed wiring base material 10；Stiffener 20, it strengthens at least the one of printed wiring base material 10 Part；And electronic unit 2, it is installed on printed wiring base material 10.Additionally, will be by The component that printed wiring base material 10 and stiffener 20 are constituted is referred to as " wiring substrate 3 ".

Printed wiring base material 10 possesses wiring and the insulative resin layer of protection wiring.Wiring By such as containing gold, silver, copper, aluminum, the electric conductor of nickel or the duplexer structure of these electric conductors Become.Insulative resin layer is by such as polyimide resin, polyamide, polrvinyl chloride tree Fat, polyester resin, polyphenylene sulfide, polyolefin resin, poly terephthalic acid second Terephthalate resin, polybutylene terephthalate (PBT) resin, PEN tree The insulative resin such as fat, fluororesin is constituted, or is made up of the duplexer of these resins.Separately Outward, adhesive linkage can be comprised between insulative resin layer and wiring.Adhesive linkage is by epoxy resin Deng composition.Such insulative resin layer has isotropism about linear expansion coefficient.

As electronic unit 2, can enumerate such as capacitor, resistance, diode, transistor, Integrated circuit components, inducer, adapter, agitator, lapel mike, switch, little Type speaker, micro-machine, anti-magnetic sheet etc..

With reference to Fig. 2 (a) and Fig. 2 (b), stiffener 20 is described.

Stiffener 20 is attached on printed wiring base material 10 by bonding agent, or passes through Thermo-compressed fixes.

Stiffener 20 possesses resin sheet 21 and weaves cotton cloth 22.Weave cotton cloth and 22 be configured at resin sheet In 21.

Resin sheet 21 by such as polyimide resin, polyamide, Corvic, Polyester resin, polyphenylene sulfide, polyolefin resin, polyethylene terephthalate Ester resin, polybutylene terephthalate (PBT) resin, PEN resin, Fluororesin etc. are constituted.

Clip with 2 sheets constituting resin sheet 21 and weave cotton cloth 22, crimp 2 sheets, thus knit Cloth 22 is configured in resin sheet 21.Or, make the above-mentioned resin enumerated of 22 dippings of weaving cotton cloth, Thus weave cotton cloth and 22 be configured in resin sheet 21.

Weave cotton cloth and 22 on the thickness direction of resin sheet 21, be configured at zone line.At Fig. 2 (b) In, in stiffener 20, weave cotton cloth 22 layer be one layer, but weave cotton cloth 22 layer can It is configured to multilamellar.Weave cotton cloth 22 layer be multiple in the case of, constitute weave cotton cloth 22 line Direction is the most consistent.

Weave cotton cloth and 22 there is warp 23 and parallel 24.Additionally, do not distinguishing warp 23 and latitude " line " it is only called during line 24.

As weave cotton cloth 22 tissue (weave), plain weave, twill, satin weave etc. can be enumerated. Warp 23 and parallel 24 are the most orthogonal.Additionally, what is called is the most orthogonal refers to warp 23 And the meansigma methods of the angle between the warp 23 of each intersection of parallel 24 and parallel 24 It it is 90 degree.

Weave cotton cloth 22 thickness be below more than 10 μm and 100 μm.Spacing (the warp of warp 23 The meansigma methods of the spacing distance between line 23) it is below more than 300 μm and 1000 μm.Latitude The spacing (meansigma methods of the spacing distance between parallel 24) of line 24 be more than 300 μm and Below 1000 μm.Warp 23 and parallel 24 by 1 or many (such as, 10 with The regulation radical of upper less than 30) fine rule (hereinafter referred to as " constitute line 25 ".) constitute. Constitute line 25 to be made up of such as glass fibre, carbon fiber, polymer fiber etc..Constitute line The mean radius of 25 is below more than 10 μm and 1000 μm.Here, so-called mean radius Represent D50 value.

Such stiffener 20 at maquila with (single point of stiffener 20 in bulk From state) supply.

Or, as it is shown on figure 3, multiple stiffener 20 is as being supported by supporting part 4a Component is (hereinafter referred to as " supply component 4 ".) be supplied to.By supply component 4 In the case of supply stiffener 20, when wiring substrate 3 assembles or after assembling, add Strong component 20 separates from supporting part 4a.

With reference to Fig. 4 (a) and Fig. 4 (b), the length direction DL of stiffener 20 is carried out Explanation.The length direction DL of so-called stiffener 20 is defined as: average in all directions The direction at the position that mean breadth is the longest in width.Additionally, so-called all directions represent: such as The direction of each line when making the line set for stiffener 20 respectively rotate 1 degree.The most right Arbitrary 2 directions (the 1st direction and the 2nd direction) in stiffener 20 illustrate flat All width.

Fig. 4 (a) is the figure during mean breadth on the 1st direction of regulation stiffener 20. 1st direction arbitrarily sets.In this embodiment, the 1st direction along with constitute stiffener 20 Profile limit in the vertical line in the longest limit.Double dot dash line shown in Fig. 4 (a) is along 1 direction.Each double dot dash line separates specific length (such as, with the spacing distance phase of warp 23 Same length) arrangement.The length of the part of double dot dash line and stiffener 20 overlap is this The width of the stiffener 20 in double dot dash line.Mean breadth is as in each double dot dash line The meansigma methods of width of stiffener 20 obtain.Stiffener 20 on 1st direction Mean breadth Lave (1) become (L1+ ...+Lm)/m.Here, L1 ... Lm Represent the length of the width of stiffener 20 in each double dot dash line.M represents and strengthens structure The number of the double dot dash line of part 20 overlap.

Fig. 4 (b) is that the 2nd direction of regulation stiffener 20 is (orthogonal with the 1st direction Direction) on mean breadth time figure.The average width of the stiffener 20 on the 2nd direction Degree Lave (2) becomes (L1+ ...+Ln)/n.Here, L1 ... Ln represents each two point The length of the width of the stiffener 20 in line.N represents overlapping with stiffener 20 The number of double dot dash line.

The mean breadth in mean width ratio the 1st direction in the 2nd direction is long.All directions are carried out Such comparison, selects the direction that mean breadth is the longest.The direction so selected becomes reinforcement The length direction DL of component 20.

Relative to the length direction DL so set, weave cotton cloth 22 by following configuration.

As it is shown in figure 5, weave cotton cloth, 22 are configured to, weave cotton cloth 22 warp 23 and parallel 24 phase Line for alongst DL intersects.By this composition, warp 23 and parallel 24 Not parallel relative to length direction DL.Preferably weave cotton cloth 22 warp 23 extending direction with Angle (being the 1st angle, θ 1 below) between the length direction DL of stiffener 20 is More than 30 degree less than 60 degree.More preferably the 1st angle, θ 1 is more than 35 degree and less than 55 degree. Further preferred 1st angle, θ 1 is more than 40 degree and less than 50 degree.It addition, parallel 24 Extending direction and the length direction DL of stiffener 20 between angle (be the 2nd below Angle, θ 2) it is more than 30 degree and less than 60 degree.Preferably the 2nd angle, θ 2 is more than 35 degree And less than 55 degree.Further preferred 2nd angle, θ 2 is more than 40 degree and less than 50 degree. Additionally, herein the 1st angle, θ 1 represent weave cotton cloth 22 warp 23 extending direction with add A less side's (acute side) in angle between the length direction DL of strong component 20 Angle.Equally, the 2nd angle, θ 2 represent weave cotton cloth 22 parallel 24 extending direction with add A less side's (acute side) in angle between the length direction DL of strong component 20 Angle.

The effect of following description stiffener 20.

(1) stiffener 20 has and weaves cotton cloth 22.In stiffener 20, weave cotton cloth 22 Parallel 24 and the line of warp 23 and the length direction DL along stiffener 20 intersect.

Comprise weave cotton cloth 22 stiffener 20 in, linear expansion coefficient is according to stiffener The all directions of 20 and different.Specifically, along the direction of parallel 24 with along warp 23 The linear expansion coefficient in direction is than the linear expansion coefficient in the direction intersected with warp 23 and parallel 24 Little.In stiffener 20, when weave cotton cloth 22 be configured to weave cotton cloth 22 warp 23 or latitude When line 24 is along the length direction DL of stiffener 20, such stiffener is installed The reinforcing section of the printed wiring base material 10 of 20 warpage under heating or hot environment becomes big. This is because: along the length of stiffener 20 in the reinforcing section of printed wiring base material 10 The elongation ratio in the direction (being " length substrate direction " below) of direction DL and length direction The elongation in the direction that DL intersects is big, and this length substrate direction is difficult in stiffener 20 The direction (i.e. length direction DL) at the position of elongation is consistent.Therefore, configured as above that Sample, in stiffener 20, weaving cotton cloth 22 is configured in resin sheet 21, weaves cotton cloth 22 Warp 23 and parallel 24 intersect with the line of the length direction DL along stiffener 20.By This, can suppress the warpage of the reinforcing section strengthened by stiffener 20.

(2) the length direction DL of stiffener 20 is all directions at stiffener 20 The direction at the position that mean breadth is the longest in the mean breadth of upper regulation.

According to the definition of this length direction DL, even if at the complex contour of stiffener 20 In the case of, it is possible to preseting length direction DL clearly.

(3) the length direction DL of preferably extending direction and the stiffener 20 of warp 23 Between angle be more than 30 degree.Or, the preferably extending direction of parallel 24 and reinforcement structure Angle between the length direction DL of part 20 is more than 30 degree.According to this composition, because In stiffener 20, the length direction DL of stretchy direction and stiffener 20 is close, So the warpage of the reinforcing section strengthened by stiffener 20 can be suppressed.Additionally, what is called adds In strong component 20, stretchy direction refers to the side intersected with warp 23 or parallel 24 To.

(4) supply member comprises the stiffener 20 of above-mentioned composition.According to this composition, as Shown in Fig. 3, stiffener 20 is supported by supporting part 4a, and its direction is fixed.Therefore, With stiffener 20 with compared with situation about being supplied in bulk, stiffener 20 is installed to print Operation time on brush wiring substrate 10 becomes simple.

(5) wiring substrate 3 has the stiffener 20 of above-mentioned composition.

According to this composition, the reinforcement strengthened in wiring substrate 3 can be suppressed by stiffener 20 The warpage of part.Additionally, so-called wiring substrate 3 is flexible printing wiring board, rigidity printing Wiring plates etc. have the component of wire structures.

(6) assembly 1 possesses above-mentioned wiring substrate 3.By strengthening in printed wiring base material 10 The warpage of the reinforcing section that component 20 is strengthened diminishes.Therefore, have electronic unit 2 easily The effect being installed to reinforcing section or the effect easily assembly 1 being assembled on shell. That is, the productivity ratio of this assembly 1 is excellent.

[other embodiment]

This technology is not limited to above-mentioned embodiment.Hereinafter other embodiment is said Bright.

In the above-described embodiment, in order to solve problem, in stiffener 20, knit The parallel 24 of cloth 22 and warp 23 and the length set along profile based on stiffener 20 The line of degree direction DL intersects.On the other hand, in order to solve problem, it is also possible under meeting The mode of the condition in face will be weaved cotton cloth and 22 will be configured on resin sheet 21.Such as, at parallel 24 Average length and the shortest direction of the average length of warp 23 on join for stiffener 20 It is equipped with and weaves cotton cloth 22.According to this composition, because the length of parallel 24 and warp 23 shortens, institute So that the warpage of the part strengthened in printed wiring base material 10 can be suppressed by stiffener 20.

Industrial utilizability

Above-mentioned stiffener 20 is useful when using to strengthen printed wiring base material 10. Above-mentioned supply component 4 is useful as the component of supply stiffener 20.Above-mentioned wiring base Material 3 is useful when being used in assembly 1.Assembly 1 is useful when being used in electrical equipment.

Claims (6)

1. a stiffener, sheet strengthened by it, and described stiffener is characterised by,

There is resin sheet and be configured at weaving cotton cloth in described resin sheet,

The described line weaved cotton cloth each line with the length direction along described stiffener intersects.

Stiffener the most according to claim 1, it is characterised in that described reinforcement structure The length direction of part is institute in the mean breadth specified in all directions of described stiffener State the direction at the longest position of mean breadth.

3. according to the stiffener described in claim 1 or claim 2, it is characterised in that Described weaving cotton cloth is made up of warp and parallel,

The extending direction of described warp or the extending direction of described parallel and described reinforcement structure Angle between the length direction of part is more than 30 degree and less than 60 degree.

4. a supply component, it is characterised in that comprise claim 1～claim The stiffener described in any one in 3.

5. a wiring substrate, it is characterised in that there is claim 1～claim 3 In the stiffener described in any one.

6. an assembly, it is characterised in that possess the wiring substrate described in claim 5.