CN202177778U

CN202177778U - Character film

Info

Publication number: CN202177778U
Application number: CN2011202424819U
Authority: CN
Inventors: 何盛平; 刘�东; 刘克敢; 宋建远; 魏秀云
Original assignee: Shenzhen Suntak Multilayer PCB Co Ltd
Current assignee: Shenzhen Suntak Multilayer PCB Co Ltd
Priority date: 2011-07-11
Filing date: 2011-07-11
Publication date: 2012-03-28
Anticipated expiration: 2021-07-11

Abstract

The utility model relates to a printed circuit, in particular to a character film in the printed circuit. The character film comprises a film main body, a through-hole and a character are arranged on the film main body, and the minimum distance between the hole edge of the through-hole and the character is greater than or equal to 0.05mm. The utility model has the benefit that printing ink is prevented from flowing to a machine surface through the through-hole, so as to prevent the contamination on the other side of the printed circuit board.

Description

A kind of character film

Technical field

The utility model relates to P.e.c., relates in particular to a kind of character film in the printed circuit.

Background technology

PCB (Printed Circuit Board), Chinese is a printed circuit board, claims printed circuit board (PCB), printed-wiring board (PWB) again, is the important electron parts, is the supporter of electronic devices and components, is the supplier that electronic devices and components are electrically connected.And the film mainly to be the printed-wiring board (PWB) developing procedure use, similar with the photographic negative in the life, developing procedure is exactly to print to the circuit image on the film on the copper face, etches away the copper medication water of not wanting then; Stay useful copper and form circuit, and before developing, then need carry out silk-screen, wherein printed-wiring board (PWB); Need carry out the character ink-jet, at present, all there is via hole in the existing film; And in the process of ink-jet, the board face is arrived in leakage of oil easily, thereby pollutes the another side of printed-wiring board (PWB).

Summary of the invention

In order to solve the problems of the prior art, the utility model provides a kind of character film.

The utility model provides a kind of character film, comprises film main body, and said film main body is provided with via hole and character, and the bore edges of said via hole and the minor increment of said character are more than or equal to 0.05 millimeter.

As the further improvement of the utility model, said via hole is a circular hole.

As the further improvement of the utility model, said character is along the circumferential setting of said via hole.

As the further improvement of the utility model, said character is square.

As the further improvement of the utility model, the bore edges of said via hole and the minor increment of said character are more than or equal to 0.06 millimeter.

As the further improvement of the utility model, the bore edges of said via hole and the minor increment of said character are more than or equal to 0.07 millimeter.

As the further improvement of the utility model, the bore edges of said via hole and the minor increment of said character are more than or equal to 0.08 millimeter.

As the further improvement of the utility model, the bore edges of said via hole and the minor increment of said character are more than or equal to 0.09 millimeter.

As the further improvement of the utility model, the bore edges of said via hole and the minor increment of said character are more than or equal to 0.10 millimeter.

As the further improvement of the utility model, the bore edges of said via hole and the minor increment of said character are more than or equal to 0.15 millimeter.

The beneficial effect of the utility model is: through such scheme, can avoid printing ink to flow to the board face through via hole, can avoid polluting the another side of printed-wiring board (PWB).

Description of drawings

Fig. 1 is the structural representation of a kind of character film of the utility model.

Embodiment

Below in conjunction with description of drawings and embodiment the utility model is further specified.

Drawing reference numeral among Fig. 1 is: film main body 1; Character 11; Via hole 12.

As shown in Figure 1, a kind of character film comprises film main body 1, and said film main body 1 is provided with via hole 12 and character 11, and the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.05 millimeter.

As shown in Figure 1, said via hole 12 is a circular hole.

As shown in Figure 1, said character 11 is along the circumferential setting of said via hole 12.

As shown in Figure 1, said character 11 is square.

As shown in Figure 1, the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.06 millimeter.

As shown in Figure 1, the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.07 millimeter.

As shown in Figure 1, the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.08 millimeter.

As shown in Figure 1, the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.09 millimeter.

As shown in Figure 1, the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.10 millimeter.

As shown in Figure 1, the minor increment of the bore edges of said via hole 12 and said character 11 is more than or equal to 0.15 millimeter.

A kind of character film as shown in Figure 1, that the utility model provides can avoid printing ink to flow to the board face through via hole 12, can avoid polluting the another side of printed-wiring board (PWB).

Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.

Claims

1. character film, it is characterized in that: comprise film main body (1), said film main body (1) is provided with via hole (12) and character (11), and the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.05 millimeter.

2. the character film according to claim 1 is characterized in that: said via hole (12) is a circular hole.

3. the character film according to claim 1 is characterized in that: said character (11) is along the circumferential setting of said via hole (12).

4. the character film according to claim 1 is characterized in that: said character (11) is for square.

5. the character film according to claim 1 is characterized in that: the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.06 millimeter.

6. the character film according to claim 5 is characterized in that: the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.07 millimeter.

7. the character film according to claim 6 is characterized in that: the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.08 millimeter.

8. the character film according to claim 7 is characterized in that: the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.09 millimeter.

9. the character film according to claim 8 is characterized in that: the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.10 millimeter.

10. the character film according to claim 9 is characterized in that: the minor increment of the bore edges of said via hole (12) and said character (11) is more than or equal to 0.15 millimeter.