CN105934090B - Multiple-printed-panel for circuit board - Google Patents
Multiple-printed-panel for circuit board Download PDFInfo
- Publication number
- CN105934090B CN105934090B CN201610380571.1A CN201610380571A CN105934090B CN 105934090 B CN105934090 B CN 105934090B CN 201610380571 A CN201610380571 A CN 201610380571A CN 105934090 B CN105934090 B CN 105934090B
- Authority
- CN
- China
- Prior art keywords
- segment
- circuit board
- long side
- printed
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09081—Tongue or tail integrated in planar structure, e.g. obtained by cutting from the planar structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The present invention discloses a kind of multiple-printed-panel for circuit board, jigsaw main body including being in rectangle, the jigsaw main body includes the first long side and multiple circuit boards, the multiple circuit board is equidistantly arranged along the extending direction of first long side, each circuit board includes the first segment and second segment being connected, the first segment and the second segment are elongated, first jiao of α is formed between the first segment and first long side, the second angle beta is formed between the second segment and the first segment, meet: 0 ° of 90 ° of < α <, α≤β≤+ 90 ° of α.The availability ratio of the armor plate of multiple-printed-panel for circuit board of the present invention is high.
Description
Technical field
The present invention relates to circuit board technology field more particularly to a kind of multiple-printed-panel for circuit board.
Background technique
With the update and improvement of surface mounting technology (Surface Mounted Technology, SMT) technological level,
Printed circuit board (Printed Circuit Board, PCB, also known as circuit board) designer is carrying out multiple-printed-panel for circuit board design
When, it needs to fully take into account the working condition of product, so that the product designed is met productibility requirement, to quickly launch
Market meets market and the needs of client.Meanwhile designer also needs the utilization in view of plate when designing circuit board plate material
One of an important factor for rate, availability ratio of the armor plate is influence circuit board cost.
When doing board design, some veneers of Chang Yinwei are too small, it has not been convenient to cross furnace (wave crest or reflow ovens) or cross surface
Mounting technology equipment, it is necessary to which jigsaw solves process issues.The process of multiple-printed-panel for circuit board be by the veneer of some small sizes,
Assembled arrangement becomes the process of a big circuit board plate material.In the prior art, often occur since veneer shape is non-rectangle,
And cause the utilization rate to circuit board plate material low, cause plate to waste, cost waste when high-volume making sheet is very high.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of multiple-printed-panel for circuit board that availability ratio of the armor plate is high.
To achieve the goals above, embodiment of the present invention adopts the following technical scheme that
On the one hand, a kind of multiple-printed-panel for circuit board is provided, the jigsaw main body including being in rectangle, the jigsaw main body includes first long
Side and multiple circuit boards, the multiple circuit board are equidistantly arranged along the extending direction of first long side, each circuit
Plate includes the first segment and second segment being connected, and the first segment and the second segment are elongated, the first segment with
First jiao of α is formed between first long side, forms the second angle beta between the second segment and the first segment, is met: 0 ° of < α
90 ° of <, α≤β≤+ 90 ° of α.
Wherein, first jiao of α meets: 25 °≤α≤65 °.
Wherein, each circuit board further includes third section, and the third section is connected to the separate institute of the second segment
One end of first segment is stated, and forms gap between the third section and the adjacent second segment.
Wherein, the jigsaw main body further includes multiple T-shape plates, and the multiple T-shape plate is connected to institute correspondingly
Multiple circuit boards are stated, each T-shape plate includes the riser and transverse slat being connected, and one end of the riser is connected to described
The middle part of transverse slat, the other end of the riser are connected to the long side far from the first segment of the second segment, and each institute
It states and is respectively formed gap between T-shape plate and the adjacent second segment.
Wherein, the first spacing T is formed between the adjacent circuit board of any two, second angle beta is equal to 90 °, institute
First segment is stated with the first width T1, the second segment has the second width T2, and the riser is elongated and perpendicular to described
Second segment, the riser have the 4th width T4 and the 4th length L4, and the riser is with the second segment far from described first
The second interval S is formed between the short side of section, is met: S≤T1-T4, T4 >=T2+2 × T.
Wherein, the transverse slat is elongated, and the transverse slat is perpendicular to the riser and symmetrical relative to the riser, described
Transverse slat has the 5th width T5 and the 5th length L5, meets: L5≤2 × S, T5≤T2.
Wherein, the jigsaw main body further includes the second long side being oppositely arranged with first long side, each circuit
Plate is all connected with the first long side setting, and each T-shape plate is all connected with the second long side setting.
Wherein, the jigsaw main body further includes two be relatively connected between first long side and second long side
Short side, two circuit boards for being arranged in the multiple circuit board ends are respectively connected to two short sides.
Wherein, the first spacing T is formed between the adjacent circuit board of any two, second angle beta is equal to 90 °, institute
First segment is stated with the first width T1, the second segment has the second width T2, first jiao of α satisfaction:
Wherein, the first spacing T is formed between the adjacent circuit board of any two, met: 1.5mm≤T≤3mm.
Compared to the prior art, the invention has the following advantages:
Multiple-printed-panel for circuit board described in the embodiment of the present invention, since the multiple circuit board is along described the first of the jigsaw main body
The extending direction of long side equidistantly arranges, and first jiao of α is formed between the first segment and first long side, and described second
The second angle beta is formed between section and the first segment, is met: 0 ° of 90 ° of < α <, α≤β≤+ 90 ° of α, so as to reduce the spelling
The area of plate main body effectively improves the multiple circuit board to the utilization rate of the jigsaw main body, reduces production cost.Change speech
It, the availability ratio of the armor plate of the multiple-printed-panel for circuit board is high.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, other attached drawings can also be obtained such as these attached drawings.
Fig. 1 is a kind of structural schematic diagram of multiple-printed-panel for circuit board provided in an embodiment of the present invention.
Fig. 2 is a kind of structural schematic diagram of the circuit board of multiple-printed-panel for circuit board provided in an embodiment of the present invention.
Fig. 3 is the structural schematic diagram of another multiple-printed-panel for circuit board provided in an embodiment of the present invention.
Fig. 4 is the structural schematic diagram of another multiple-printed-panel for circuit board provided in an embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the circuit board of another multiple-printed-panel for circuit board provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In addition, the explanation of following embodiment is referred to the additional illustration, the spy that can be used to implement to illustrate the present invention
Determine embodiment.Direction terms mentioned in the present invention, for example, "upper", "lower", "front", "rear", "left", "right", "inner",
"outside", " side " etc. are only the directions with reference to annexed drawings, and therefore, the direction term used is to more preferably, more clearly say
The bright and understanding present invention, rather than indicate or imply signified device or element and must have a particular orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection ", " be arranged exist ... on " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removably connect
It connects, or is integrally connected；It can be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.If this
Occur the term of " process " in specification, refers not only to independent process, when can not clearly be distinguished with other process, as long as
Effect desired by the process is able to achieve then to be also included in this term.In addition, the numerical value model indicated in this specification with "~"
Enclose the range for referring to that the numerical value for recording "~" front and back is included as minimum value and maximum value.In the accompanying drawings, structure
Similar or identical unit is indicated by the same numeral.
Also referring to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of multiple-printed-panel for circuit board 100, the jigsaw including being in rectangle
Main body 10, the jigsaw main body 10 include the first long side 101 and multiple circuit boards 1, and the multiple circuit board 1 is long along described first
The extending direction on side 101 equidistantly arranges, and each circuit board 1 includes the first segment 11 and second segment 12 being connected, institute
It states first segment 11 and the second segment 12 is elongated, form first between the first segment 11 and first long side 101
Angle α forms the second angle beta between the second segment 12 and the first segment 11, meet: 0 ° of 90 ° of < α <, α≤β≤+ 90 ° of α.
In the present embodiment, first long side 101 due to the multiple circuit board 1 along the jigsaw main body 10 is prolonged
It stretches direction equidistantly to arrange, and forms first jiao of α, the second segment between the first segment 11 and first long side 101
The second angle beta is formed between 12 and the first segment 11, is met: 0 ° of 90 ° of < α <, α≤β≤+ 90 ° of α, it is described so as to reduce
The area of jigsaw main body 10 effectively improves the multiple circuit board 1 to the utilization rate of the jigsaw main body 10, and reduction is produced into
This.In other words, the availability ratio of the armor plate of the multiple-printed-panel for circuit board 100 is high.
It should be appreciated that in the present embodiment, the multiple equidistantly arrangement of circuit board 1, therefore the two of arbitrary neighborhood institutes
State the spacing between two second segments 12 of the spacing and arbitrary neighborhood between first segment 11 be it is identical always, with convenient
Subsequent process is gone on smoothly.
Further, as a kind of alternative embodiment, first jiao of α meets: 25 °≤α≤65 °.At this point, the circuit
The area of the waste material (namely plate in addition to the multiple circuit board 1 of the jigsaw main body 10) of plate jigsaw 100 is small, described
Multiple-printed-panel for circuit board 100 has higher availability ratio of the armor plate.
Also referring to Fig. 1 and Fig. 2, as a kind of preferred embodiment, any two of the multiple-printed-panel for circuit board 100 are adjacent
The circuit board 1 between form the first spacing T, second angle beta is equal to 90 °, and the first segment 11 has the first width T1,
The second segment 12 has the second width T2, first jiao of α satisfaction:
It should be understood that the first width T1 refers to that the first segment 11 is big in the size perpendicular to its extending direction
Small, the second width T2 refers to the second segment 12 in the size perpendicular to its extending direction.The first segment 11 is also
Refer to the size of size of the first segment 11 in its extending direction with the first length L1, the first length L1.Preferably,
The multiple circuit board 1 of the present embodiment meets: L1 >=2 × T2+T.
For example, first jiao of α is 45 ° when the first width T1 is equal to the second width T2；When described first
When width T1 is greater than the second width T2, first jiao of α meets: 45 °≤α≤65 °；When the first width T1 is less than institute
When stating the second width T2, first jiao of α meets: 25 °≤α≤45 °.
Further, referring to Fig. 1, as a kind of alternative embodiment, the jigsaw main body 10 further includes and described first
The second long side 102 that long side 101 is oppositely arranged, each circuit board 1 connect first long side 101 and described the simultaneously
Two long sides 102.Preferably, the jigsaw main body 10 further includes relatively being connected to first long side 101 and second length
Two short sides 103 between side 102 are arranged in two 1 (such as first, figures of circuit board at the multiple 1 both ends of circuit board
The circuit board 1 and the last one described circuit board 1) it is respectively connected to two short sides 103.At this point, the jigsaw main body
10 area is minimum, further reduces waste material area, and the availability ratio of the armor plate of the multiple-printed-panel for circuit board 100 is high.
Further, referring to Fig. 3, as a kind of alternative embodiment, each circuit board 1 further includes third section
13, the third section 13 be connected to the second segment 12 far from the first segment 11 one end, and the third section 13 with
Gap namely the third section 13 are formed between the adjacent second segment 12 weight does not occur with the adjacent second segment 12
It is folded.Even, one end far from the second segment 12 of the third section 13 can also continue to the 4th section, the 5th section of connection etc., make
It is substantially wavy to obtain each circuit board 1.
It should be appreciated that the third section 13 can connect to the short side far from the first segment 11 of the second segment 12
On, it also can connect to the end position of the long side far from the first segment 11 of the second segment 12.
Further, referring to Figure 4 together and Fig. 5, as a kind of alternative embodiment, the jigsaw main body 10 further includes more
A T-shape plate 2, the multiple T-shape plate 2 are connected to the multiple circuit board 1 correspondingly, and each T-shape plate 2 is
Including the riser 14 and transverse slat 15 being connected, one end of the riser 14 is connected to the middle part of the transverse slat 15, the riser 14
The other end be connected to the second segment 12 far from the first segment 11 long side 121, and each T-shape plate 2 with
Gap namely each T-shape plate 2 are respectively formed between the adjacent second segment 12 will not be with the adjacent second segment
12 overlap.
In the present embodiment, the setting of the multiple T-shape plate 2 is so that the application of the circuit board 1 is more diversified.Example
Such as, when the circuit board 1 is applied to Mobile terminal main board, the riser 14 is formed by the T-shape with the transverse slat 15
Plate 2 can be used for connecting side key.
For example, referring to Figure 4 together and Fig. 5, the first spacing is formed between the adjacent circuit board 1 of any two
T, second angle beta are equal to 90 °, and the first segment 11 has the first width T1, and the second segment 12 has the second width T2, institute
It is elongated and perpendicular to the second segment 12 to state riser 14, the riser 14 has the 4th width T4 and the 4th length L4, institute
It states and forms the second interval S between riser 14 and the short side 122 far from the first segment 11 of the second segment 12, meet: S≤
T1-T4, T4 >=T2+2 × T.
In the present embodiment, the setting of the interval S and the 4th length L4, so that the institute of each T-shape plate 2
Stating riser 14 will not be Chong Die with the multiple circuit board 1, and the arrangement of the multiple circuit board 1 and multiple risers 14 is compact
And rationally, the availability ratio of the armor plate of the multiple-printed-panel for circuit board 100 is high.
Further, the transverse slat 15 is elongated, and the transverse slat 15 is perpendicular to the riser 14 and relative to described perpendicular
Plate 14 is symmetrical, and the transverse slat 15 has the 5th width T5 and the 5th length L5, meets: L5≤2 × S, T5≤T2.
In the present embodiment, the setting of the 5th width T5 and the 5th length L5, so that each T-shape plate 2 is described
Transverse slat 15 will not be Chong Die with the multiple circuit board 1, and the arrangement of the multiple circuit board 1 and the multiple T-shape plate 2 is compact
And rationally, the availability ratio of the armor plate of the multiple-printed-panel for circuit board 100 is high.
Further, referring to Fig. 4, as a kind of alternative embodiment, the jigsaw main body 10 further includes and described first
The second long side 102 that long side 101 is oppositely arranged, each circuit board 1 are all connected with first long side 101 and are arranged, Mei Gesuo
It states T-shape plate 2 and is all connected with the setting of the second long side 102.Meanwhile the jigsaw main body 10 further include relatively be connected to it is described
Two short sides 103 between first long side 101 and second long side 102 are arranged in two of the multiple 1 both ends of circuit board
The circuit board 1 is respectively connected to two short sides 103.At this point, the area of the jigsaw main body 10 is minimum, further decrease
The availability ratio of the armor plate of waste material area, the multiple-printed-panel for circuit board 100 is high.
Further, Fig. 1, Fig. 3 and Fig. 4 are please referred to, as a kind of alternative embodiment, in order to make the multiple circuit board
1 arrangement is compact, while facilitating the progress of subsequent technique again, and the first spacing T meets: 1.5mm≤T≤3mm.Preferably, T
=2mm.
Further, referring to Fig. 1, as a kind of alternative embodiment, the multiple-printed-panel for circuit board 100 further includes two techniques
Side 4, described two technique edges 4 are respectively connected to first long side 101 and second long side 102.The technique edges 4 to
It is passed in surface mounting technology (Surface Mounted Technology, SMT) equipment for the multiple-printed-panel for circuit board 100
Send use.
Further, referring to Fig. 1, as a kind of alternative embodiment, the multiple-printed-panel for circuit board 100 is also provided at least four
A location hole 5, at least four location hole 5 are dispersed in the surrounding of the multiple circuit board 1.When carrying out surface mount, table
Face paste dress technical equipment completes the patch of element on the multiple-printed-panel for circuit board 100 by identifying that the location hole 5 is aligned
Dress.
The embodiment of the present invention has been described in detail above, specific case used herein to the principle of the present invention and
Embodiment is expounded, and the above description of the embodiment is only used to help understand the method for the present invention and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the present invention
There is change place, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (8)
1. a kind of multiple-printed-panel for circuit board, which is characterized in that the jigsaw main body including being in rectangle, the jigsaw main body include the first long side
With multiple circuit boards, the multiple circuit board is equidistantly arranged along the extending direction of first long side, each circuit board
It include the first segment and second segment being connected, the first segment and the second segment are elongated, the first segment and institute
It states and forms first jiao of α between the first long side, form the second angle beta between the second segment and the first segment, meet: 0 ° of < α <
90 °, α≤β≤+ 90 ° of α；
Wherein, the jigsaw main body further includes multiple T-shape plates, and the multiple T-shape plate is connected to described more correspondingly
A circuit board, each T-shape plate includes the riser and transverse slat being connected, and one end of the riser is connected to the transverse slat
Middle part, the other end of the riser is connected to the long side far from the first segment of the second segment, and " T "
Gap is respectively formed between template and the adjacent second segment.
2. multiple-printed-panel for circuit board as described in claim 1, which is characterized in that first jiao of α meets: 25 °≤α≤65 °.
3. multiple-printed-panel for circuit board as described in claim 1, which is characterized in that formed between the adjacent circuit board of any two
First spacing T, second angle beta are equal to 90 °, and the first segment has the first width T1, and the second segment has the second width
T2, the riser is elongated and perpendicular to the second segment, and the riser has the 4th width T4 and the 4th length L4, described
The second interval S is formed between riser and the short side far from the first segment of the second segment, is met: S≤T1-T4, T4 >=T2
+2×T。
4. multiple-printed-panel for circuit board as claimed in claim 3, which is characterized in that the transverse slat is elongated, the transverse slat perpendicular to
The riser and symmetrical relative to the riser, the transverse slat have the 5th width T5 and the 5th length L5, meet: L5≤2 ×
S, T5≤T2.
5. multiple-printed-panel for circuit board as described in claim 1, which is characterized in that the jigsaw main body further includes and first long side
The second long side being oppositely arranged, each circuit board are all connected with the first long side setting, and each T-shape plate is all connected with
The second long side setting.
6. multiple-printed-panel for circuit board as claimed in claim 5, which is characterized in that the jigsaw main body further includes relatively being connected to institute
Two short sides between the first long side and second long side are stated, two circuits of the multiple circuit board ends are arranged in
Plate is respectively connected to two short sides.
7. such as the described in any item multiple-printed-panel for circuit board of claim 1 to 2, which is characterized in that the adjacent circuit of any two
The first spacing T is formed between plate, second angle beta is equal to 90 °, and the first segment has the first width T1, the second segment tool
There is the second width T2, first jiao of α satisfaction:
8. multiple-printed-panel for circuit board as described in claim 1, which is characterized in that formed between the adjacent circuit board of any two
First spacing T meets: 1.5mm≤T≤3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380571.1A CN105934090B (en) | 2016-05-31 | 2016-05-31 | Multiple-printed-panel for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380571.1A CN105934090B (en) | 2016-05-31 | 2016-05-31 | Multiple-printed-panel for circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105934090A CN105934090A (en) | 2016-09-07 |
| CN105934090B true CN105934090B (en) | 2019-02-01 |
Family
ID=56832144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380571.1A Expired - Fee Related CN105934090B (en) | 2016-05-31 | 2016-05-31 | Multiple-printed-panel for circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105934090B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200718A (en) * | 2018-02-22 | 2018-06-22 | 广东欧珀移动通信有限公司 | Circuit board |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2343059A (en) * | 1998-10-21 | 2000-04-26 | Jerseyfield Limited | A method for tracking printed circuit boards on multi-board panels through a production process |
| CN2800697Y (en) * | 2005-06-03 | 2006-07-26 | 上海华仕德电路技术有限公司 | Typesetting structure of non-distance flexible circuit board |
| CN2802902Y (en) * | 2005-06-24 | 2006-08-02 | 上海华仕德电路技术有限公司 | Obverse and reverse arrangement structure of flexible circuit board |
| CN201491384U (en) * | 2009-08-19 | 2010-05-26 | 广东依顿电子科技股份有限公司 | Jointing-board structure of circuit board |
| CN202197453U (en) * | 2011-09-22 | 2012-04-18 | 卧龙电气集团股份有限公司 | Jointed circuit board used for Hall electric machine |
| CN102946690A (en) * | 2012-11-01 | 2013-02-27 | 广东欧珀移动通信有限公司 | Method for manufacturing circuit board |
| CN103997859A (en) * | 2014-06-03 | 2014-08-20 | 深圳市华大电路科技有限公司 | Flexible circuit board capable of being continuously discharged one by one, and preparation method thereof |
-
2016
- 2016-05-31 CN CN201610380571.1A patent/CN105934090B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2343059A (en) * | 1998-10-21 | 2000-04-26 | Jerseyfield Limited | A method for tracking printed circuit boards on multi-board panels through a production process |
| CN2800697Y (en) * | 2005-06-03 | 2006-07-26 | 上海华仕德电路技术有限公司 | Typesetting structure of non-distance flexible circuit board |
| CN2802902Y (en) * | 2005-06-24 | 2006-08-02 | 上海华仕德电路技术有限公司 | Obverse and reverse arrangement structure of flexible circuit board |
| CN201491384U (en) * | 2009-08-19 | 2010-05-26 | 广东依顿电子科技股份有限公司 | Jointing-board structure of circuit board |
| CN202197453U (en) * | 2011-09-22 | 2012-04-18 | 卧龙电气集团股份有限公司 | Jointed circuit board used for Hall electric machine |
| CN102946690A (en) * | 2012-11-01 | 2013-02-27 | 广东欧珀移动通信有限公司 | Method for manufacturing circuit board |
| CN103997859A (en) * | 2014-06-03 | 2014-08-20 | 深圳市华大电路科技有限公司 | Flexible circuit board capable of being continuously discharged one by one, and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN105934090A (en) | 2016-09-07 |
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