CN106707685A - Control method for expansion and shrinkage of film - Google Patents
Control method for expansion and shrinkage of film Download PDFInfo
- Publication number
- CN106707685A CN106707685A CN201611019034.0A CN201611019034A CN106707685A CN 106707685 A CN106707685 A CN 106707685A CN 201611019034 A CN201611019034 A CN 201611019034A CN 106707685 A CN106707685 A CN 106707685A
- Authority
- CN
- China
- Prior art keywords
- film
- photoplotting
- temperature
- control method
- light
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/60—Substrates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a control method for expansion and shrinkage of a film. The control method comprises the following steps: before photoplotting of the film, unwrapping the package of the film, and putting the film in a dust-free chamber; when the photoplotting of the film is carried out by using a photoplotter, prolonging the developing time to be 33 to 37 seconds, reducing the temperature of photographic fixing to be 30 to 34 DEG C, reducing the developing temperature to be 32 to 36 DEG C, and reducing the drying temperature to be 41 to 45 DEG C; after the photoplotting of the film is finished, pressing the film at the film pressing speed of 2 to 3 m/min; after the film is pressed, standing for 110 to 130 minutes. Before the photoplotting, the film is enabled to adapt to current temperature and humidity, the constant temperature, the developing temperature and the drying temperature are reduced, the developing time is prolonged, and the photoplotting quality is guaranteed; after the photoplotting is finished, the film is immediately pressed and stood, so that the thermal expansion and cold shrinkage influence of ambient temperature and humidity change on the size of the film before and after the photoplotting and during the photoplotting is reduced, and the defect rate of dimensional deformation due to the film photoplotting is reduced.
Description
Technical field
Field is painted the present invention relates to film light, and in particular to a kind of method that control light paints rear film harmomegathus.
Background technology
With the development of electron trade, PCB design increasingly develops to high-rise, intensive circuit, small spacing BGA, and this is just
The requirement of aligning accuracy high is then proposed on PCB manufacturers generally influences the maximum factor as harmomegathus of PCB aligning accuracies,
And film egative film PCB harmomegathus control in serve as particularly important role, its dimensional stability directly affect lamination precision,
Outer-layer circuit, anti-welding, word contraposition precision, so as to directly affect PCB performances, the size distortion that current light paints the film is bad
Rate is higher, and the film waste paper of generation is more, causes huge waste.
The content of the invention
Regarding to the issue above, the present invention provides a kind of control method of film harmomegathus, including step:Carried out to the film
Before light is painted, the packaging of the film is taken apart, be placed in dust free room;
When carrying out film light using optical plotter and painting, extension developing time reduced fixing temperature to 30 ~ 34 DEG C to 33 ~ 37 seconds, reduced
Development temperature reduces drying temperature to 41 ~ 45 DEG C to 32 ~ 36 DEG C;
Film light first carries out press mold after the completion of painting, press mold 2 ~ 3m/min of speed stands 110 ~ 130 minutes after press mold.
Preferably, the time film being placed in dust free room is more than 20 minutes.
Preferably, when carrying out film light and paint, intensity of illumination is set as 3.1 ~ 3.2 Lx.
Preferably, when carrying out film light and paint, compensating value is set as -1.60 ~ -1.80mil.
Preferably, the placement of film frame inclining is connect on optical plotter, the drying section air port of optical plotter is straight when preventing film slice
Connect against the film.
The control method of the film harmomegathus that the present invention is provided, allows the film to adapt to current humiture, and drop by before light is painted
Low constant temperature, development, drying temperature, and extend developing time and ensure that light paints quality, light carries out press mold and stands immediately after the completion of painting,
Mitigate light and paint the rising-heat contracting-cold influence that ambient temperature and humidity change is caused on the film size when front and rear and light is painted, reduce light and paint the film
Size distortion fraction defective.
Specific embodiment
The present invention is better understood from for ease of those skilled in the art, is carried out further with reference to specific embodiment
It is bright.
During specific implementation, three mouths are opened into film packaging bag first before light is painted, contacted with clean room air, shorten suitable
Should before humiture time, improve dimensional stability of film light when painting.The film was placed in dust free room after 30 minutes, was used
Optical plotter carries out film light and paints, wherein fixing, development, the design temperature of drying have compared the control parameter numerical value of conventional method
Reduce, be respectively set as 32 DEG C, 34 DEG C, 43 DEG C, mitigating the harmomegathus that temperature change is caused on film when light is painted influences, and in order to
Ensure that light paints quality while temperature is reduced, somewhat extend developing time to 35 seconds, intensity of illumination is set as 3.07 Lx, this
It is outer and compensating value is set as into -1.70mil to compensate the size difference that film harmomegathus causes the pattern that light is painted.
After the completion of light is painted, press mold is carried out immediately, press mold speed is set as 2.5 m/min, and the film is carried out into sealing protection, keeps away
Exempt from the film is influenceed by ambient humidity, and 120 minutes are stood after press mold, the film is gradually adapted to environment temperature, so as to mitigate light paint
The film afterwards produces harmomegathus because of the change of ambient temperature and humidity.
Additionally, the film frame that connects on optical plotter answers slant setting, prevent the film from going out slabbing when film inframe is connect, optical plotter
Drying section air port directly against the film, and cause the temperature to influence on the film.
Using the above method, verified through test of many times, light is painted rear film size changing value and can be controlled in ± 1mil, can have
Effect reduces the size distortion fraction defective that light paints the film.
Above-described embodiment is only specific embodiment of the invention, and its description is more specific and in detail, but can not therefore and
It is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, not taking off
On the premise of present inventive concept, various modifications and improvements can be made, these obvious alternative forms belong to this
The protection domain of invention.
Claims (5)
1. a kind of control method of film harmomegathus, including step:
Before light being carried out to the film and is painted, the packaging of the film is taken apart, be placed in dust free room;
When carrying out film light using optical plotter and painting, extension developing time reduced fixing temperature to 30 ~ 34 DEG C to 33 ~ 37 seconds, reduced
Development temperature reduces drying temperature to 41 ~ 45 DEG C to 32 ~ 36 DEG C;
Film light first carries out press mold after the completion of painting, press mold 2 ~ 3m/min of speed stands 110 ~ 130 minutes after press mold.
2. according to the control method of film harmomegathus described in claim 1, it is characterised in that：By the film be placed in dust free room when
Between be more than 20 minutes.
3. according to the control method of film harmomegathus described in claim 1, it is characterised in that：When carrying out film light and painting, intensity of illumination
It is set as 3.1 ~ 3.2Lx.
4. according to the control method of film harmomegathus described in claim 1, it is characterised in that：When carrying out film light and painting, compensating value sets
It is set to -1.60 ~ -1.80mil.
5. according to the control method of film harmomegathus described in claim 1, it is characterised in that：The film frame inclining that connects on optical plotter is put
Put, the drying section air port of optical plotter is directly against the film when preventing film slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611019034.0A CN106707685A (en) | 2016-11-21 | 2016-11-21 | Control method for expansion and shrinkage of film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611019034.0A CN106707685A (en) | 2016-11-21 | 2016-11-21 | Control method for expansion and shrinkage of film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707685A true CN106707685A (en) | 2017-05-24 |
Family
ID=58940965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611019034.0A Pending CN106707685A (en) | 2016-11-21 | 2016-11-21 | Control method for expansion and shrinkage of film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707685A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277746A (en) * | 1991-03-06 | 1992-10-02 | Fujitsu Ltd | Film tool for production of printed wiring board and its expansion and contraction measuring method |
| CN101670720A (en) * | 2009-10-14 | 2010-03-17 | 陕西科技大学 | Process for printing QS quality safety sign on gold card paper |
| CN101973169A (en) * | 2010-09-26 | 2011-02-16 | 陕西科技大学 | Method for printing bar codes on iridescent paper |
| CN105140345A (en) * | 2015-09-10 | 2015-12-09 | 国电新能源技术研究院 | Heterojunction cell and preparation method thereof |
| CN105676329A (en) * | 2016-03-29 | 2016-06-15 | 陕西科技大学 | Explicit-implicit film grating and manufacturing method thereof |
-
2016
- 2016-11-21 CN CN201611019034.0A patent/CN106707685A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277746A (en) * | 1991-03-06 | 1992-10-02 | Fujitsu Ltd | Film tool for production of printed wiring board and its expansion and contraction measuring method |
| CN101670720A (en) * | 2009-10-14 | 2010-03-17 | 陕西科技大学 | Process for printing QS quality safety sign on gold card paper |
| CN101973169A (en) * | 2010-09-26 | 2011-02-16 | 陕西科技大学 | Method for printing bar codes on iridescent paper |
| CN105140345A (en) * | 2015-09-10 | 2015-12-09 | 国电新能源技术研究院 | Heterojunction cell and preparation method thereof |
| CN105676329A (en) * | 2016-03-29 | 2016-06-15 | 陕西科技大学 | Explicit-implicit film grating and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 邓丹: "PCB工艺内段问题研究及控制策略", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |