CN102183877A - Method for repairing printed wiring board and ultraviolet (UV) repairing machine - Google Patents
Method for repairing printed wiring board and ultraviolet (UV) repairing machine Download PDFInfo
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- CN102183877A CN102183877A CN 201110072420 CN201110072420A CN102183877A CN 102183877 A CN102183877 A CN 102183877A CN 201110072420 CN201110072420 CN 201110072420 CN 201110072420 A CN201110072420 A CN 201110072420A CN 102183877 A CN102183877 A CN 102183877A
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- light
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- printed wiring
- wiring board
- sensitization
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Abstract
The invention relates to a method for repairing a printed wiring board. The method comprises the following: a step of locating, namely placing a half-finished printed wiring board of which a light sensitive medium has the defects of non-sensitive or lack-of-sensitive single points on a corresponding workpiece platform, and determining the position of defect points required light sensing by an image monitoring system; a step of setting, namely setting the light sensitive quantity and light sensitive time of the light sensitive medium and the intensity of ultraviolet (UV) light; and a step of sensitive repairing, namely aligning corresponding patterns with the position of the defect points required light sensing, covering parts which do not require light sensing, starting power supply, enabling the UV light generated by the power supply to be projected on the defect points through a luminotron, and performing light sensitive repair on the defect points. The invention also provides a method for manufacturing a printed wiring board by applying the repairing method and an UV repairing machine applying the repairing method. By adopting the equipment and the method, the exposure of a respective point or a respective area can be realized and the repair on abnormal sensitive positions on the printed wiring board is performed. Moreover, the method has the advantages of low cost, high efficiency and convenience of repair.
Description
Technical field
The present invention relates to production process of printed circuit board and equipment, refer in particular to a kind of printed wiring board method for repairing and mending and UV repairing machine.
Background technology
Traditional production process of printed circuit board comprises usually successively: process such as shaping substrate, subsides dry film, egative film contraposition, exposure, development, etching, wherein, the exposure production run is prone to unusually, common abnormal is to need sensitization place to be caused single-point or individual areas not to have sensitization by foreign matter resistance light or other reasons, finally causes finished product bad.Therefore, after exposure, detect the unusual printed wiring board of exposure and need carry out Efficient software patching.
At present, the scarce sensitization of solution do not have sensitization or to(for) photonasty medium single-point has following several: 1, before the video picture or after the video picture at defective locations point repairing China ink; 2, tape at defective locations before the video picture; 3, with the contraposition sensitization again of corresponding egative film; 4, take off and wash light-sensitive medium off, again processing.All there are some defectives in these several existing methods: the reliability after 1, repairing is bad; 2, flow process is numerous and diverse, is prone to disappearance; 3, waste resource; 4, the production schedule can't normally be reached.
Summary of the invention
Technical matters to be solved by this invention is, a kind of printed wiring board method for repairing and mending is provided, and can repair the unusual printed wiring boards half-finished product of exposure convenient, reliably, promotes the finished product yield.
Another technical matters to be solved of the present invention is, a kind of UV repairing machine is provided, and can repair the unusual printed wiring boards half-finished product of exposure convenient, reliably, promotes the finished product yield.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of printed wiring board method for repairing and mending comprises the steps:
Positioning step, the printed wiring boards half-finished product that exists single-point not have sensitization or scarce sensitization defective light-sensitive medium places on the corresponding work piece platform, need to determine the defect point position of sensitization by image monitoring;
Step is set, sets the light intensity of sensitive volume, timing up and the UV light of light-sensitive medium;
Step is repaired in sensitization, and corresponding figure and the defect point position that needs sensitization to good position, are covered in the position that need not sensitization, starts light source then, and the UV light that light source is produced is projeced on the defect point by luminotron, described defect point is carried out sensitization repair.
Further, in the positioning step, adjust the travel(l)ing rest of image monitoring, make the high image resolution camera align the defect point position and take, the high image resolution camera is taken the light-sensitive medium image on the printed wiring board and is delivered on the display screen and shows, and this moment, luminotron aligned the defect point position.
Further, be 10 ~ 20 seconds repairing timing up of each defect point.
In addition, the present invention also provides a kind of UV repairing machine, comprise board with work piece platform, image monitoring and light source, described image monitoring comprises by means of travel(l)ing rest and being located on the board to take the high image resolution camera of workpiece image, be located on the board and link to each other with the high image resolution camera to show the display screen of the taken workpiece image of high image resolution camera, described light source comprises in order to produce the main part of UV light, the gauge tap of being located on the travel(l)ing rest and linking to each other and be projected to the luminotron on the workpiece and be used to open and close light source with main part by optical fiber with UV light.
Further, described image monitoring also comprises the anti-magnifier of list of being located at the camera lens outside of transferring the resolution camera.
Further, described travel(l)ing rest comprises column, be mounted slidably in the slide block on the column, be fixed in crossbeam on the slide block, rotatably be arranged at the rotating part of beam-ends, and described high image resolution camera and luminotron all are fixed on the described rotating part.
Further, described gauge tap is a foot-switch.
Beneficial effect of the present invention is as follows: utilize Apparatus and method for of the present invention can realize the exposure of indivedual points or individual areas, be used for the unusual printed wiring boards half-finished product of sensitization is repaired the problem that can effectively avoid the conventional repair method to exist.Reduced the consumption of the photosensitive material that causes because of doing over again; And do not influence working (machining) efficiency, it is convenient to repair; Product after Apparatus and method for of the present invention is repaired meets the product requirement of normal process fully, need not to add other material; UV repairing machine complete machine cost of the present invention belongs to disposable input, on long terms, and the material cost of saving and owing to yield promotes the cost of spoiled goods reduce much larger than equipment cost.Equipment later maintenance of the present invention is simple, only needs usually to change light source, and light source life is then more than 3 years.In addition, the efficient height that method of the present invention is repaired can be repaired counting more than 1500 in 10 hours; Device design of the present invention is simple, portable, with low cost, the applied range of operation, long service life.Apparatus and method for of the present invention all can be used for photosensitive dry film, circuit printing ink, welding resistance printing ink.
Description of drawings
Fig. 1 is the schematic flow sheet of printed wiring board method for repairing and mending of the present invention.
Fig. 2 is the structural representation of UV repairing machine of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
As shown in Figure 1, the invention provides a kind of printed wiring board method for repairing and mending, comprise the steps:
Positioning step, the printed wiring boards half-finished product that exists single-point not have sensitization or scarce sensitization defective light-sensitive medium places on the corresponding work piece platform, need to determine the defect point position of sensitization by image monitoring;
Step is set, set the light intensity of sensitive volume, timing up and the UV light of light-sensitive medium, normally, be 10 ~ 20 seconds repairing timing up of each defect point, because the different needed sensitive volume differences of light-sensitive medium, the light-sensitive medium that adopts in the time of need be according to actual production is set, and this sensitive volume is the value of fixing, sensitive volume=UV light intensity (mw) * timing up (S) can be by being provided with different UV light intensities or reaching needed sensitive volume timing up;
Step is repaired in sensitization, with corresponding figure and the defect point position that needs sensitization to good position, cover in the position that need not sensitization, start light source then, the UV light that light source is produced is projeced on the defect point by luminotron, described defect point is carried out sensitization repair, for improving automaticity, preferably after the time that sensitization is repaired reaches the timing up that sets, close light source automatically.
In above-mentioned positioning step, adjust the travel(l)ing rest of image monitoring, make the high image resolution camera align the defect point position and take, the high image resolution camera is taken the light-sensitive medium image on the printed wiring board and is delivered on the display screen and shows, and this moment, luminotron aligned the defect point position.
And for ease of implementing above-mentioned printed circuit board method for repairing and mending, as shown in Figure 2, the present invention also provides a kind of UV repairing machine, comprises board 1, image monitoring (figure does not indicate) and light source 3 with work piece platform 10.
Wherein, described board 1 can be designed to a rectangular-shaped frame, and its end face is provided with work piece platform 10.
Described image monitoring comprises that being located on the board 1 to take workpiece 5(by means of travel(l)ing rest 20 is the semi-manufacture of printed wiring board) the high image resolution camera 22 of image, be located on the board 1 and link to each other with the display screen 24 of demonstration high image resolution camera 22 taken workpiece images with high image resolution camera 22.For obtaining better shooting effect, described image monitoring also comprises the anti-magnifier 23 of list of being located at the camera lens outside of transferring resolution camera 22.Described image monitoring mainly is when manually egative film and defect point being carried out contraposition, and whether be used to monitor needs the figure or the position of sensitivity speck and egative film accurate.
Described travel(l)ing rest 20 comprises column 200, be mounted slidably in the slide block on the column 200 202, be fixed in crossbeam 204 on the slide block 202, rotatably be arranged at the rotating part 206 of crossbeam 204 ends, and described high image resolution camera 22 promptly is fixed on the described rotating part 206.By adopting described travel(l)ing rest 20, high image resolution camera 22 not only can move up and down also and can rotate in surface level with respect to crossbeam 204 with rotating part along column 200, and can easily high image resolution camera 22 be adjusted to the position that has the sensitization defective over against printed wiring board, and then operation such as can accurately locate.
Described light source 3 comprises in order to main part 30, the luminotron 32 that produces UV light and is used to open and close the gauge tap 34 of described light source 3.Described light source 3 can adopt common in the market various UV light sources, can produce satisfactory UV light and get final product.The key light wavelength of the UV light that described main part 30 produces and has the panel of setting, scalable light intensity and timing up etc. between 320 ~ 400nm.Described luminotron 32 is located on the rotating part 206 of travel(l)ing rest 20 and by optical fiber 31 and is linked to each other so that UV light is projected on the workpiece 5 with main part 30.Described gauge tap 34 can preferably be adopted as foot-switch, is arranged at board 1 below.
Utilize Apparatus and method for of the present invention can realize the exposure of indivedual points or individual areas, be used for that the unusual printed wiring board of sensitization is dressed up product to repair the problem that effectively to avoid the conventional repair method to exist.
It below only is the specific embodiment of the present invention; be not in order to limit protection scope of the present invention; be appreciated that ground; the replacement of carrying out according to the real purport of the creation of the invention described above; modify or improvement etc. all belongs to protection scope of the present invention; for example: travel(l)ing rest 20 mainly provides and supports high image resolution camera 22 and luminotron 32; and can movablely regulate so that high image resolution camera 22 and luminotron 32 can be adjusted to needed position; and a kind of embodiment that travel(l)ing rest 20 shown in Figure 3 only is the present invention to be adopted; be appreciated that ground, can being used for of existing various routines adjusted object and realized that the three-dimensional mechanism that moves all can be used as described travel(l)ing rest.
Claims (8)
1. a printed wiring board method for repairing and mending is characterized in that, comprises the steps:
Positioning step, the printed wiring boards half-finished product that exists single-point not have sensitization or scarce sensitization defective light-sensitive medium places on the corresponding work piece platform, need to determine the defect point position of sensitization by image monitoring;
Step is set, sets the light intensity of sensitive volume, timing up and the UV light of light-sensitive medium;
Step is repaired in sensitization, and corresponding figure and the defect point position that needs sensitization to good position, are covered in the position that need not sensitization, starts light source then, and the UV light that light source is produced is projeced on the defect point by luminotron, described defect point is carried out sensitization repair.
2. printed wiring board method for repairing and mending as claimed in claim 1, it is characterized in that: in the positioning step, adjust the travel(l)ing rest of image monitoring, making the high image resolution camera align the defect point position takes, the high image resolution camera is taken the light-sensitive medium image on the printed wiring board and is delivered on the display screen and shows, and this moment, luminotron aligned the defect point position.
3. printed wiring board method for repairing and mending as claimed in claim 1 is characterized in that: the time that sensitization is repaired is closed light source after reaching the timing up that sets automatically.
4. printed wiring board method for repairing and mending as claimed in claim 1 is characterized in that: be 10 ~ 20 seconds repairing timing up of each defect point.
5. UV repairing machine, it is characterized in that: comprise board with work piece platform, image monitoring and light source, described image monitoring comprises by means of travel(l)ing rest and being located on the board to take the high image resolution camera of workpiece image, be located on the board and link to each other with the high image resolution camera to show the display screen of the taken workpiece image of high image resolution camera, described light source comprises in order to produce the main part of UV light, the gauge tap of being located on the travel(l)ing rest and linking to each other and be projected to the luminotron on the workpiece and be used to open and close light source with main part by optical fiber with UV light.
6. UV repairing machine as claimed in claim 5 is characterized in that: described image monitoring also comprises the anti-magnifier of list of being located at the camera lens outside of transferring the resolution camera.
7. UV repairing machine as claimed in claim 5, it is characterized in that: described travel(l)ing rest comprises column, be mounted slidably in the slide block on the column, be fixed in crossbeam on the slide block, rotatably be arranged at the rotating part of beam-ends, and described high image resolution camera and luminotron all are fixed on the described rotating part.
8. UV repairing machine as claimed in claim 5 is characterized in that: described gauge tap is a foot-switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110072420 CN102183877A (en) | 2011-03-24 | 2011-03-24 | Method for repairing printed wiring board and ultraviolet (UV) repairing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110072420 CN102183877A (en) | 2011-03-24 | 2011-03-24 | Method for repairing printed wiring board and ultraviolet (UV) repairing machine |
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| CN102183877A true CN102183877A (en) | 2011-09-14 |
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| CN 201110072420 Pending CN102183877A (en) | 2011-03-24 | 2011-03-24 | Method for repairing printed wiring board and ultraviolet (UV) repairing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307434A (en) * | 2011-08-30 | 2012-01-04 | 东莞美维电路有限公司 | UV adding line instrument and adding line method |
| CN105071308A (en) * | 2015-09-10 | 2015-11-18 | 江苏省电力公司金湖县供电公司 | Repair method of damaged cable |
| CN109342458A (en) * | 2018-11-14 | 2019-02-15 | 大连崇达电路有限公司 | A kind of high-accuracy printed wiring board appearance quality detecting device and its application method |
| CN111986465A (en) * | 2020-08-19 | 2020-11-24 | 南宁影联医学工程有限公司 | Method for changing wired exposure device into wireless device for medical equipment |
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| JP2007163822A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Displays Ltd | Electronic circuit board pattern correction device and method |
| CN101471272A (en) * | 2007-12-29 | 2009-07-01 | 财团法人工业技术研究院 | Automatic flaw detection device and method for substrate laser repairing device |
| CN101493586A (en) * | 2008-01-25 | 2009-07-29 | 东捷科技股份有限公司 | Pixel element repairing system |
| CN101587248A (en) * | 2008-05-22 | 2009-11-25 | 东捷科技股份有限公司 | Laser repair device with automatic detection function |
| CN101673666A (en) * | 2008-09-12 | 2010-03-17 | 奥林巴斯株式会社 | Laser repair device and a laser repair method |
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2011
- 2011-03-24 CN CN 201110072420 patent/CN102183877A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007163822A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Displays Ltd | Electronic circuit board pattern correction device and method |
| CN101471272A (en) * | 2007-12-29 | 2009-07-01 | 财团法人工业技术研究院 | Automatic flaw detection device and method for substrate laser repairing device |
| CN101493586A (en) * | 2008-01-25 | 2009-07-29 | 东捷科技股份有限公司 | Pixel element repairing system |
| CN101587248A (en) * | 2008-05-22 | 2009-11-25 | 东捷科技股份有限公司 | Laser repair device with automatic detection function |
| CN101673666A (en) * | 2008-09-12 | 2010-03-17 | 奥林巴斯株式会社 | Laser repair device and a laser repair method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307434A (en) * | 2011-08-30 | 2012-01-04 | 东莞美维电路有限公司 | UV adding line instrument and adding line method |
| CN105071308A (en) * | 2015-09-10 | 2015-11-18 | 江苏省电力公司金湖县供电公司 | Repair method of damaged cable |
| CN109342458A (en) * | 2018-11-14 | 2019-02-15 | 大连崇达电路有限公司 | A kind of high-accuracy printed wiring board appearance quality detecting device and its application method |
| CN111986465A (en) * | 2020-08-19 | 2020-11-24 | 南宁影联医学工程有限公司 | Method for changing wired exposure device into wireless device for medical equipment |
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Application publication date: 20110914 |