CN105430875B - Circuit board and its application - Google Patents
Circuit board and its application Download PDFInfo
- Publication number
- CN105430875B CN105430875B CN201510982182.1A CN201510982182A CN105430875B CN 105430875 B CN105430875 B CN 105430875B CN 201510982182 A CN201510982182 A CN 201510982182A CN 105430875 B CN105430875 B CN 105430875B
- Authority
- CN
- China
- Prior art keywords
- base material
- circuit
- circuit board
- hole
- etching
- 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.)
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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
- H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
- H05K1/0298—Multilayer 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
-
- 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
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09863—Concave hole or via
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
Abstract
The present invention relates to a kind of circuit board and its applications, the circuit board includes base material and the etching metallic circuit above base material, the base material is equipped at least a pair of of through-hole, base material bottom inside through-hole and between two through hole is equipped with conductive coating, and base material forms the closed circuit of conducting with etching metallic circuit.The present invention sets the etching traditional circuit formed on printing on substrates silver wire road of metal circuitry instead above base material, and conducting wire compactly concentrates circuit when on the metal layer, reducing printing that undesirable probability occurs, promotes yield；And drill to base material, in through-hole and base material bottom sets conductive coating, and the conducting closed circuit of formation can replace existing wire jumper technique, reduce production process, reduce technology difficulty, substantially save production cost.The application of the circuit board of the present invention includes for the circuit board being used as the light guide plate of illuminated keyboard, and the bottom-emission that keyboard can be realized directly is used cooperatively with light emitting diode.
Description
Technical field
The present invention relates to a kind of circuit board and its applications, and in particular to one kind is led by etching metallic circuit and metal coating
Logical circuit board and its application, belong to electronic technology field.
Background technology
Traditional circuit board is generally made by printing silver wire in substrate surface, and printing silver wire forms the fraction defective of circuit very
Height, production technology is complicated, and manufactured circuit board waterproof ability is poor, and cost is higher；Meanwhile traditional circuit board passes through in silver
Phenomena such as line circuit surface puts up a bridge to form wire jumper, is also easy to produce short circuit.
Invention content
Goal of the invention：The first object of the present invention is to provide a kind of circuit board, and the second object of the present invention is to provide one kind
Using the circuit board as the application of illuminated keyboard light guide plate.
Technical solution：Circuit board of the present invention, the etching metallic circuit including base material and above base material should
Base material is equipped at least a pair of of through-hole, and through-hole inside and the base material bottom between two through hole are equipped with conductive coating, base material
The closed circuit of conducting is formed with etching metallic circuit.Metallic circuit is etched by single side, forms conducting wire, and by base
Material drills, and in through-hole and base material bottom sets conductive coating, makes base material with etching the mode of metal circuit turn-on to form wire jumper,
The function of traditional circuit-board can be fully achieved, moreover, production process is simple, cost is relatively low.
Above-mentioned conductive coating is metal coating or carbon coating.
Preferably, metal coating is silver coating or copper coating.
Above-mentioned etching metallic circuit is etching copper foil circuit or etching aluminium foil circuit.It is preferred that etching aluminium foil circuit, Ke Yijin
One step reduces cost.
Preferably, it is equipped with conductive metal protective layer in above-mentioned etching aluminium foil circuit surface.
Specifically, base material is Kapton, polyester film, polycarbonate film, polyvinyl chloride film or other are soft
Property base material.
Above-mentioned base material is alternatively glass, rubber, acrylic, plastics, glass fibre, fiberboard, ceramics or other hard bases
Material.
The application of circuit board of the present invention, including being used the circuit board as the light guide plate of illuminated keyboard.This hair
Bright board substrate is equipped with through-hole, light transmission can be effectively carried out, so as to fulfill the effect of light guide plate.
Advantageous effect：Compared with prior art, the advantage of the invention is that：
(1) present invention uses the setting etching metal circuitry instead above base material traditional in printing on substrates silver wire road shape
Into circuit, and by drilling to base material, in through-hole and base material bottom sets conductive coating, and base material is formed with etching metallic circuit
Closed circuit replaces existing wire jumper with the closed circuit of the conducting, reduces production process, reduce technology difficulty, substantially
Save production cost；Meanwhile etch metallic circuit and conducting wire is compactly concentrated on the metal layer, it reduces when printing
Undesirable probability occurs for circuit, promotes yield；
(2) by gold-plated, tin plating or other conductive metal protective layers on etching metallic circuit, even if there is water pollution to arrive this
Place, circuit board still can be used normally after the drying, while waterproof ability is improved significantly, and be tested from current industry
2 hours of standard are promoted to 24 hours or longer, this is that the circuit of the printing silver paste in current industry can not be realized；
(3) circuit board of the invention can be used as light guide plate, be directly used cooperatively with light emitting diode and key can be realized
The bottom-emission of disk；The circuit board of the present invention can be also used cooperatively with various flexible substrates or hard substrate, realize each field
Versatility；Moreover, because the unique structure of circuit board of the present invention, more traditional even if being used cooperatively with Kapton
Circuit board can also effectively reduce cost.
Description of the drawings
Fig. 1 is the board structure of circuit schematic diagram of the present invention；
Fig. 2 be the present invention circuit board in the schematic diagram of closed circuit that is formed with etching metallic circuit of base material, in figure, arrow
Head direction is circuit turn-on direction.
Specific embodiment
Technical scheme of the present invention is described further below in conjunction with the accompanying drawings.
Such as Fig. 1, circuit board of the invention, the etching metallic circuit 2 including base material 1 and above base material 1, on base material 1
Equipped at least a pair of of through-hole 3,3 inside of through-hole and the base material bottom between two through hole 3 are equipped with conductive coating 4, base material 1 with
Etch the closed circuit that metallic circuit 2 forms conducting, such as Fig. 2.
Etching metallic circuit 2 is set in 1 single side of base material, instead of traditional circuit that silver wire is printed on base material 1 and is formed, is led
Electric line is compactly concentrated on the metal layer, and the circuit that opposite printing is formed can reduce and undesirable probability occurs, promote yield；
By drilling to base material 1, the base material bottom in through-hole 3 and between two through hole 3 sets conductive coating 4, etches metallic circuit 2 and base
Material 1 is connected, and is equivalent to wire jumper of the prior art, and the circuit board of the present invention is enable to fully achieve the function of traditional circuit-board,
Moreover, compared with traditional circuit board, reduce production process, production technology is relatively simple, is produced into so as to substantially save
This.
Base material 1 can be Kapton, polyester film, polycarbonate film, polyvinyl chloride film or other soft bases
Material, wherein, mylar better performances, and cost is relatively low；Base material 1 or glass, rubber, acrylic, plastics, glass fibers
Dimension, fiberboard, ceramics or other hard substrates.By forming circuit board on different base materials, circuit board can be widely used
In every field.
It can be etching copper foil circuit, etching aluminium foil circuit or other etching metallic circuits to etch metallic circuit 2.It is lost when selecting
When carving aluminium foil circuit, conductive metal protective layer can be added on its surface, it, after the drying still can be with even if having water pollution to herein
Normal use.Moreover, compared with etching copper foil circuit, etching aluminium foil circuit can further reduce the cost.
Conduction is formed on base material bottom that can be by way of printing or applying conductive material in through-hole 3 and between through-hole 3
Coating 4.Such as printing or copper coated slurry, silver paste metal coating, can also print or apply carbon and starch to form conductive carbon
Coating.
The quantity of through-hole 3 can be multipair, and through-hole 3 is opened up according to the quantity for the wire jumper for needing to set in circuit board and position.
The circuit board of the present invention can be used as the light guide plate of illuminated keyboard.The base material 1 of circuit board is equipped with through-hole 3, and
With etching metallic circuit 2, by light emitting diode fitting on circuit boards, increase necessary optical material, you can transmission ray,
Achieve the effect that keyboard bottom-emission.
Claims (7)
1. a kind of circuit board, which is characterized in that the etching metallic circuit (2) including base material (1) and above base material (1),
The base material (1) is equipped at least a pair of of through-hole (3), through-hole (3) inside and the base material bottom between two through hole (3)
Equipped with conductive coating (4), the base material (1) forms the closed circuit of conducting with the etching metallic circuit (2)；The conductive painting
Layer (4) is metal coating or carbon coating；The etching metallic circuit (2) is etching copper foil circuit or etching aluminium foil circuit.
2. circuit board according to claim 1, which is characterized in that the metal coating is silver coating or copper coating.
3. circuit board according to claim 1, which is characterized in that the etching aluminium foil circuit surface is protected equipped with conductive metal
Sheath.
4. circuit board according to claim 1, which is characterized in that the base material (1) is flexible substrate or hard substrate.
5. circuit board according to claim 4, which is characterized in that the flexible substrate is Kapton, polyester
Film, polycarbonate film or polyvinyl chloride film.
6. circuit board according to claim 4, which is characterized in that the hard substrate is glass, rubber, acrylic, modeling
Material, glass fibre, fiberboard or ceramics.
It is 7. a kind of using circuit board described in claim 1 as the application of illuminated keyboard light guide plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510982182.1A CN105430875B (en) | 2015-12-24 | 2015-12-24 | Circuit board and its application |
| US15/002,606 US9741501B2 (en) | 2015-12-24 | 2016-01-21 | Thin-film switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510982182.1A CN105430875B (en) | 2015-12-24 | 2015-12-24 | Circuit board and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105430875A CN105430875A (en) | 2016-03-23 |
| CN105430875B true CN105430875B (en) | 2018-06-19 |
Family
ID=55508722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510982182.1A Active CN105430875B (en) | 2015-12-24 | 2015-12-24 | Circuit board and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105430875B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436478A (en) * | 2007-11-15 | 2009-05-20 | 光宝科技股份有限公司 | Luminous keyboard |
| CN201839512U (en) * | 2010-09-27 | 2011-05-18 | 比亚迪股份有限公司 | Flexible printed circuit board |
| CN203537664U (en) * | 2013-09-24 | 2014-04-09 | 忠信(太仓)绝缘材料有限公司 | Multilayer circuit board based on insulating base paper |
| CN203984767U (en) * | 2014-06-27 | 2014-12-03 | 浙江天驰电子有限公司 | A kind of high capacity aluminum-based circuit board |
| CN205266015U (en) * | 2015-12-24 | 2016-05-25 | 江苏传艺科技股份有限公司 | Circuit board |
-
2015
- 2015-12-24 CN CN201510982182.1A patent/CN105430875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436478A (en) * | 2007-11-15 | 2009-05-20 | 光宝科技股份有限公司 | Luminous keyboard |
| CN201839512U (en) * | 2010-09-27 | 2011-05-18 | 比亚迪股份有限公司 | Flexible printed circuit board |
| CN203537664U (en) * | 2013-09-24 | 2014-04-09 | 忠信(太仓)绝缘材料有限公司 | Multilayer circuit board based on insulating base paper |
| CN203984767U (en) * | 2014-06-27 | 2014-12-03 | 浙江天驰电子有限公司 | A kind of high capacity aluminum-based circuit board |
| CN205266015U (en) * | 2015-12-24 | 2016-05-25 | 江苏传艺科技股份有限公司 | Circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105430875A (en) | 2016-03-23 |
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| GR01 | Patent grant |