A kind of antistatic FPCA flexible PCBs
Technical field
This utility model is related to flexible PCB technical field, specially a kind of antistatic FPCA flexible PCBs.
Background technology
Flexible PCB is that the one kind that is made as base material with polyimides or mylar has height reliability, excellent
Flexible printed circuit.The characteristics of there is high, lightweight Distribution density, thickness of thin, good bending property.With modern electronic technology
Continuous development, present flexible PCB is also more and more applied many in such as mobile phone, computer and liquid crystal screen etc.
The field of kind.FPCA is a kind of flexible PCB for being welded with electrical equipment, in use, from human body, surrounding very
To the electrostatic of device interior, it will cause expendable damage to compact semiconductor element, have a strong impact on overall performance.
Utility model content
For problem above, this utility model provides a kind of antistatic FPCA flexible PCBs, simple structure thickness of thin
Small volume, with good bending performance and stability, and effectively can realize antistatic, can be with effectively solving background technology
In problem.
For achieving the above object, this utility model provides following technical scheme:A kind of antistatic FPCA flexible PCBs, bag
Circuit board main body is included, the outer surface of the circuit board main body is bonded with anti-static device, and the circuit board main body includes flexible base
Body and stiffening plate, by tight the linking into an integrated entity structure of bonding film between the flexible substrate and stiffening plate;The reinforcement
The upper surface of plate is equipped with wiring layer, and the lower surface bonds of flexible substrate have lower wiring layer, the upper wiring layer and lower wiring
The surface of layer is provided with pad and through hole, and the through hole is through to lower wiring layer always from upper wiring layer, and goes back inside through hole
Copper-foil conducting electricity has been closely bonded, between the pad, installing hole has been provided with, component to be welded in the installing hole, has been fixed with;
The anti-static device includes electro-magnetic screen layer and ground protection ring.
Used as a kind of preferred technical scheme of this utility model, the upper wiring layer and lower wiring layer adopt copper-foil conducting electricity
Make, and the surface of upper wiring layer and lower wiring layer is respectively adopted welding resistance paint and is coated with the first solder mask and the second solder mask.
Used as a kind of preferred technical scheme of this utility model, the stiffening plate is with upper wiring layer and flexible substrate with
Connected by epoxy resin solid between wiring layer.
Used as a kind of preferred technical scheme of this utility model, the electro-magnetic screen layer is covered in the appearance of circuit board main body
Face, the ground protection ring are connected on the ground wire of circuit.
Compared with prior art, the beneficial effects of the utility model are:Antistatic FPCA flexible PCBs, by arranging
Flexible substrate and stiffening plate, both ensure that circuit board can realize the bending of certain angle, ensure that again overall with certain
Intensity;By arranging upper wiring layer and lower wiring layer, the electrical connection for realizing two-layer using through hole and copper-foil conducting electricity, using the
One solder mask and the second solder mask realize both isolation, effectively reduce influencing each other between element;By arranging antistatic
Device, greatly improves anti-static ability using electro-magnetic screen layer and ground protection ring, it is ensured that the stability of circuit;This practicality is new
Type simple structure thickness of thin small volume, with good bending performance and stability, and can effectively realize antistatic.
Description of the drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is this utility model cross-sectional view.
In figure:1- circuit board main bodies;2- anti-static devices;3- flexible substrates;4- stiffening plates;5- bonding films;The upper cloth of 6-
Line layer;Wiring layer under 7-;8- pads;9- through holes;10- copper-foil conducting electricities;11- installing holes;12- components to be welded;13- electromagnetism
Screen layer;14- ground protection rings;The first solder masks of 15-;The second solder masks of 16-;17- solids.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Embodiment in based on this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Embodiment:
Fig. 1 and Fig. 2 is referred to, this utility model provides a kind of technical scheme:A kind of antistatic FPCA flexible PCBs, bag
Circuit board main body 1 is included, the outer surface of the circuit board main body 1 is bonded with anti-static device 2, and the circuit board main body 1 includes soft
Property matrix 3 and stiffening plate 4, by tight the linking into an integrated entity structure of bonding film 5 between the flexible substrate 3 and stiffening plate 4;
The upper surface of the stiffening plate 4 is equipped with wiring layer 6, and the lower surface bonds of flexible substrate 3 have lower wiring layer 7, the upper cloth
The surface of line layer 6 and lower wiring layer 7 is provided with pad 8 and through hole 9, and the through hole 9 is through to lower cloth always from upper wiring layer 6
Copper-foil conducting electricity 10 has also been closely bonded inside line layer 7, and through hole 9, has been provided with installing hole 11, the installation between the pad 8
Component to be welded 12 is fixed with hole 11;The anti-static device 2 includes electro-magnetic screen layer 13 and ground protection ring 14;
The upper wiring layer 6 and lower wiring layer 7 are made using copper-foil conducting electricity, and the table of upper wiring layer 6 and lower wiring layer 7
Face is respectively adopted welding resistance paint and is coated with the first solder mask 15 and the second solder mask 16;The stiffening plate 4 and upper wiring layer 6 and soft
Property is connected by epoxy resin solid 17 between matrix 3 and lower wiring layer 7;The electro-magnetic screen layer 13 is covered in circuit board
The outer surface of main body 1, the ground protection ring 14 are connected on the ground wire of circuit.
Operation principle of the present utility model:Agent structure of the circuit board main body 1 for whole circuit board.The antistatic
Device 2 is used for realizing that antistatic is operated that the flexible substrate 3 to be made using polyimide material, with good bending ability,
The stiffening plate 4 is made using glass fiber-reinforced plate, with good insulation heat resistance, and is effectively increased overall strong
Degree, the bonding film 5 adopt acrylate glue, with extremely strong adhesion, can effectively by stiffening plate 4 and flexible base
3 station striking up partnership structure of body;The upper wiring layer 6 and lower wiring layer 7 are bonded in flexible base by resin solid 17 respectively
On body 3 and stiffening plate 4, for realizing upper and lower wiring operations, so as to realize dual platen, and double-sided wiring can play certain isolation
Effect, reduces interference each other;
The pad 8 can adhere to scolding tin, so as to the pin of component to be welded 12 is connected with circuit, the through hole
9 positions for being arranged in cabling inconvenience, and upper being electrically connected between wiring layer 6 and lower wiring layer 7 is realized by copper-foil conducting electricity 10;
First solder mask 15 and the second solder mask 16 can effectively realize wiring operations, and prevent circuit adhesion phenomenon;
The electro-magnetic screen layer 13 can effectively shield the electromagnetic interference in the external world, it is ensured that circuit stability, and the ground protection ring 14 will
The ground wire of circuit is incorporated into ground, so as to reduce static interference.
Antistatic FPCA flexible PCBs, by arranging flexible substrate 3 and stiffening plate 4, both ensure that circuit board could
The bending of certain angle is realized, be ensure that again overall with certain intensity;By arranging upper wiring layer 6 and lower wiring layer 7,
The electrical connection that two-layer is realized using through hole 9 and copper-foil conducting electricity 10, realizes two using the first solder mask 15 and the second solder mask 16
The isolation of person, effectively reduces influencing each other between element;By setting anti-static device 2, using electro-magnetic screen layer 13 and connect
Ground protective ring 14 greatly improves anti-static ability, it is ensured that the stability of circuit;This utility model simple structure thickness of thin volume
Little, with good bending performance and stability, and can effectively realize antistatic.
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit this utility model, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.