CN202583693U - Film convenient for alignment in exposure of printed circuit boards - Google Patents
Film convenient for alignment in exposure of printed circuit boards Download PDFInfo
- Publication number
- CN202583693U CN202583693U CN 201220070338 CN201220070338U CN202583693U CN 202583693 U CN202583693 U CN 202583693U CN 201220070338 CN201220070338 CN 201220070338 CN 201220070338 U CN201220070338 U CN 201220070338U CN 202583693 U CN202583693 U CN 202583693U
- Authority
- CN
- China
- Prior art keywords
- film
- exposure
- alignment
- printed circuit
- films
- 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.)
- Expired - Lifetime
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- Preparing Plates And Mask In Photomechanical Process (AREA)
Abstract
The utility model relates to the technical field of exposure of printed circuit boards, in particular to a film convenient for alignment in exposure of printed circuit boards. The film convenient for alignment in exposure of printed circuit boards comprises two films, and deviation-preventing alignment signs which are identical in shape and direction are arranged in same peripheral areas of the two films. Since the deviation-preventing alignment signs are arranged on the upper circuit pattern film and the lower circuit pattern film, the corresponding deviation-preventing alignment signs of the upper film and the lower film can be aligned to be completely coincided before the two films are fixed, and a to-be-exposed copper foil substrate is sandwiched between the upper film and the lower film for exposure. The film is convenient for alignment in exposure, and deviation conditions can be judged according to the deviation-preventing alignment signs to effectively control product quality.
Description
Technical field
The utility model relates to the exposure technique field of printed-wiring board (PWB).
Background technology
The copper clad laminate that the exposure of printed on both sides wiring board the time will wait to make circuit is fixed in up and down in the middle of the two-layer line pattern film, and front and back makes public simultaneously.But often there are two accurately contrapositions of the film up and down in the production run, cause that break partially in the hole, line layer is unusual partially.
Summary of the invention
The utility model purpose is for the exposure of printed on both sides wiring board a kind of film that can effectively control two accurate contrapositions of the film to be provided.
The utility model comprises two films, and identical anti-partially to bit sign of shape, direction is set respectively in the same area of the periphery of two films.
Said anti-be a cross star to bit sign partially, be wedge angle at four angles of said cross star, in the outside of said four wedge angles a pair of bilinear radially is set respectively, it is said that each is identical to the spacing between each root straight line to the cross star wedge angle in the bilinear.
The utility model is used symbol through the inclined to one side contraposition of placed layer on the two-layer line pattern film up and down; During exposure; The corresponding anti-of two films up and down all carried out contraposition to bit sign partially, make and after two-layer film upper strata overlaps bit sign partially fully up and down two films are fixed.Copper clad laminate to be made public is sandwiched in the two-layer film up and down, carries out exposure operation.Contraposition when the utility model conveniently makes public, and can be through the inclined to one side inclined to one side situation of contraposition sign determination layer of layer, with the quality of effective control product.
Description of drawings
Fig. 1 is the synoptic diagram of a film in the utility model.
Fig. 2 is the synoptic diagram of another Zhang Feilin in the utility model.
Embodiment
As shown in Figure 1; Two peripheries of the film 1 be provided with respectively two anti-partially to bit sign 2; Each is anti-to be a cross star to bit sign 2 partially, is wedge angle at four angles of cross star, in the outside of four wedge angles a pair of bilinear radially is set respectively; Each is identical to the spacing between each root straight line to the cross star wedge angle in the bilinear, and the spacing between each root straight line to cross star wedge angle equals layer control tolerance value partially.
As shown in Figure 2; Two peripheries of the film 2 be provided with respectively two anti-partially to bit sign 2'; Each is anti-also to be a cross star to bit sign 2' partially, is wedge angle at four angles of cross star, in the outside of four wedge angles a pair of bilinear radially is set respectively; Each is identical to the spacing between each root straight line to the cross star wedge angle in the bilinear, and the spacing between each root straight line to cross star wedge angle equals layer control tolerance value partially.
Wherein, each on the film on the same position 1 is anti-corresponding anti-partially identical to shape, the direction of bit sign 2' with the film 2 to bit sign 2 partially.
Claims (2)
1. a film that makes things convenient for the printed-wiring board (PWB) of exposure aligning comprises two films, it is characterized in that in the same area of the periphery of two films, being provided with respectively identical anti-partially to bit sign of shape, direction.
2. according to the said film that makes things convenient for the printed-wiring board (PWB) exposure aligning of claim 1; It is characterized in that said anti-be a cross star to bit sign partially; Four angles at said cross star are wedge angle; In the outside of said four wedge angles a pair of bilinear radially is set respectively, said each is identical to the spacing between each root straight line to the cross star wedge angle in the bilinear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070338 CN202583693U (en) | 2012-02-29 | 2012-02-29 | Film convenient for alignment in exposure of printed circuit boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070338 CN202583693U (en) | 2012-02-29 | 2012-02-29 | Film convenient for alignment in exposure of printed circuit boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583693U true CN202583693U (en) | 2012-12-05 |
Family
ID=47253087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220070338 Expired - Lifetime CN202583693U (en) | 2012-02-29 | 2012-02-29 | Film convenient for alignment in exposure of printed circuit boards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583693U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611752A (en) * | 2015-12-14 | 2016-05-25 | 谢兴龙 | Manufacture method adopting inner layer pattern transfer exposure |
| CN105682383A (en) * | 2016-03-31 | 2016-06-15 | 广州兴森快捷电路科技有限公司 | Page-type film group manufacturing method |
| US10892285B2 (en) | 2018-04-18 | 2021-01-12 | Au Optronics Corporation | Display panel and manufacturing method thereof |
-
2012
- 2012-02-29 CN CN 201220070338 patent/CN202583693U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611752A (en) * | 2015-12-14 | 2016-05-25 | 谢兴龙 | Manufacture method adopting inner layer pattern transfer exposure |
| CN105682383A (en) * | 2016-03-31 | 2016-06-15 | 广州兴森快捷电路科技有限公司 | Page-type film group manufacturing method |
| US10892285B2 (en) | 2018-04-18 | 2021-01-12 | Au Optronics Corporation | Display panel and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |