CN205830163U - The vacuum of circuit board moistens device in advance - Google Patents
The vacuum of circuit board moistens device in advance Download PDFInfo
- Publication number
- CN205830163U CN205830163U CN201620711141.9U CN201620711141U CN205830163U CN 205830163 U CN205830163 U CN 205830163U CN 201620711141 U CN201620711141 U CN 201620711141U CN 205830163 U CN205830163 U CN 205830163U
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- vacuum tank
- vacuum
- circuit board
- advance
- connectable
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Abstract
This utility model embodiment discloses the vacuum of a circuit board and moistens device in advance, comprises: a vacuum tank, and this vacuum tank is to be carried out evacuation by top, and this vacuum tank has a upper cover, inserts in this vacuum tank for by a circuit board；One aspirating hole, is positioned at the top of this vacuum tank, is connectable to the vaccum-pumping equipment outside；One air inlet, is positioned at the top of this vacuum tank；One water injection hole, is positioned at the lower section of this vacuum tank, is connectable to the water injection equipment outside；And an apopore, it is positioned at the bottom of this vacuum tank；Wherein, this air inlet is connectable to the air intake apparatus outside, and this apopore can be to the drainage equipment outside one.
Description
Technical field
This utility model is that the vacuum about a kind of circuit board moistens device in advance.
Background technology
The development that the demand increased along with electronic product function is scientific and technological with action, printed circuit board (PCB) (printed circuit
Board, or be called for short circuit board) it is the grinding of technical staff that many is engaged in exploitation in recent years with the microminiaturization of related semiconductor circuit
Study carefully emphasis；Inevitably, the microminiaturization of circuit board is also encountered by the difficulty on many processing procedures.Such as, in circuit board process
Commonly used copper facing (copper plating) step.Existing current techique Shi Jianglian road plate is immersed in electrolytic copper plating solutions (copper
Plating solution) in, then through electrolysis (electrolysis) mode, by cathode copper (electrolytic
Copper) micro through hole (microvia) on circuit board, electroplating ventilating hole (plated through hole, PTH), Gao Kuan are inserted
Height is than (aspect ratio, AR) copper post (copper pillar) or uniformly and entirely contains certain surface areas.Above-mentioned skill
Art is the important technology of existing high density interconnection (high density interconnection, HDI) circuit board process, its
In, how to be fully filled with micro through hole and not stay gas hole (void) by cathode copper is key problem, is more than improving circuit board
Quality, the most also reduces expense and process rate.
For solving above-mentioned problem, conventional technology is to add additive (additive), such as humectant in copper plating bath
(wetter), or use profit (pre-wet) step in advance, be attached to the effect of circuit board promoting cathode copper.But its effect
Limited, in actual processing procedure, being filled up completely with of cathode copper and reaching of smooth covering, it is still current a major challenge.
Utility model content
An embodiment of the present utility model discloses the vacuum of a circuit board and moistens device in advance, comprises: a vacuum tank, this vacuum tank
Being to be carried out evacuation by top, this vacuum tank has a upper cover, inserts in this vacuum tank for by a circuit board；One aspirating hole,
It is positioned at the top of this vacuum tank, is connectable to the vaccum-pumping equipment outside；One air inlet, is positioned at the top of this vacuum tank；One
Water injection hole, is positioned at the lower section of this vacuum tank, is connectable to the water injection equipment outside；And an apopore, it is positioned at this vacuum tank
Bottom；Wherein, this air inlet is connectable to the air intake apparatus outside, and this apopore can be to the drainage equipment outside one.
Whether wherein, this vacuum tank more can comprise a level sensor, be completely soaked and insert this vacuum tank sensing water level
At least one circuit board.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the vacuum of the circuit board of this utility model embodiment moistens device in advance.
Description of reference numerals
101 vacuum tanks
102 aspirating holes
103 air inlets
104 water injection holes
105 apopores
106 upper covers
Detailed description of the invention
Hereinafter, with reference to adjoint diagram, describe in detail according to embodiment of the present utility model, so that this area person is prone to
Solve.Described intention can use the embodiment of multiple change, when being not limited to only these embodiments.This utility model saves
Slightly it is well known that the description of part (well-known part), and identical reference number represents identical in this utility model
Assembly.
Fig. 1 show the vacuum of the circuit board of this utility model embodiment and moistens the schematic diagram of device in advance.As it is shown in figure 1, should
Vacuum is moistened device in advance and is comprised: a vacuum tank 101, this vacuum tank 101 carried out evacuation by top, this vacuum tank 101 has one
Upper cover 106, inserts in this vacuum tank 101 for by a circuit board；One aspirating hole 102, is positioned at the top of this vacuum tank 101, can
It is connected to the vaccum-pumping equipment (not shown) outside；One air inlet 103, is positioned at the top of this vacuum tank 201；One water injection hole
104, it is positioned at the lower section of this vacuum tank 101, is connectable to the water injection equipment (not shown) outside；And an apopore 105,
It is positioned at the bottom of this vacuum tank 101；Wherein, this air inlet 103 is connectable to the air intake apparatus (not shown) outside, and should
Apopore 105 is connectable to the drainage equipment (not shown) outside.
It should be noted that before vacuum extraction, can first preset an air pressure threshold value；The gas in device is moistened in advance when this vacuum
Pressure, less than this air pressure threshold value, can be injected a deionized water (de-ionized water, DIW) by this water injection hole 104.Wait to note
When this deionized water entered is completely covered this circuit board, i.e. stops injecting this deionized water, and allow this at least one circuit board stand
It is immersed in this deionized water through a Preset Time.When reaching this Preset Time, this vacuum can be released and moisten the true of device in advance
Sky, allows this deionized water flow out from this apopore 105, and takes out this circuit board, so far completes the pre-profit step of circuit board.
Therefore, this vacuum tank 101 more can comprise a level sensor, whether is completely soaked that to insert this true sensing this water level
The circuit board of empty van 101.Wherein the top of so-called vacuum tank refers to be near or at the position of vacuum tank end face, in like manner, vacuum
The lower section of case refers to be near or at the position of vacuum tank bottom surface.Consequently, it is possible to preferably effect can be obtained in actual operation,
But it is limited the most according to this.
Noticeable showing, this vacuum is by the top evacuation of vacuum tank when moistening device evacuation in advance；On the other hand, should
Deionized water is to be injected this vacuum by the lower section of vacuum tank to moisten device in advance, and is flowed out by the bottom of this vacuum tank.Wherein so-called true
The top of empty van and the lower section of vacuum tank are the positions referring to be near or at vacuum tank end face or bottom surface respectively.Furthermore, this air pressure
Threshold value all can adjust according to the needs elasticity of processing procedure with the predetermined time period of this standing.
In sum, the vacuum of a kind of circuit board of embodiment of the present utility model exposure moistens device in advance.Pass through extracting vacuum
Mode so that the micro through holes of circuit board etc. are internal presents vacuum state, allows the deionized water injected be more prone to touch micro-
The interior surface of through hole, can fully adhere in order to allowing cathode copper in follow-up processing procedure.
Therefore, the vacuum of a kind of circuit board of the present utility model moistens device in advance, really can skill disclosed by mat, reach pre-
The purpose of phase and effect, meet the important document of the novelty of utility model patent, progressive and industry applications.
Only, above disclosed diagram and explanation, preferred embodiment the most of the present utility model, non-in order to limit
Enforcement of the present utility model, be generally familiar with this skill personage its depended on spirit of the present utility model, the change made or repair
Decorations, all should contain in the claim of following this case.
Claims (4)
1. the vacuum of a circuit board moistens device in advance, it is characterised in that comprise:
One vacuum tank, this vacuum tank is to be carried out evacuation by top, and this vacuum tank has a upper cover, for by least one circuit board
Insert in this vacuum tank；
One aspirating hole, is positioned at the top of this vacuum tank, is connectable to the vaccum-pumping equipment outside；
One air inlet, is positioned at the top of this vacuum tank；
One water injection hole, is positioned at the lower section of this vacuum tank, is connectable to the water injection equipment outside；And
One apopore, is positioned at the bottom of this vacuum tank.
2. the vacuum of circuit board as claimed in claim 1 moistens device in advance, it is characterised in that it is outside that this air inlet is connectable to one
Air intake apparatus.
3. the vacuum of circuit board as claimed in claim 1 moistens device in advance, it is characterised in that it is outside that this apopore is connectable to one
Drainage equipment.
4. the vacuum of circuit board as claimed in claim 1 moistens device in advance, it is characterised in that this vacuum tank more can comprise a water level
Whether sensor, be completely soaked and insert at least one circuit board of this vacuum tank sensing water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620711141.9U CN205830163U (en) | 2016-07-07 | 2016-07-07 | The vacuum of circuit board moistens device in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620711141.9U CN205830163U (en) | 2016-07-07 | 2016-07-07 | The vacuum of circuit board moistens device in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205830163U true CN205830163U (en) | 2016-12-21 |
Family
ID=57565776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620711141.9U Active CN205830163U (en) | 2016-07-07 | 2016-07-07 | The vacuum of circuit board moistens device in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205830163U (en) |
-
2016
- 2016-07-07 CN CN201620711141.9U patent/CN205830163U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |