CN202335060U

CN202335060U - Single-faced double-contact flexible circuit board

Info

Publication number: CN202335060U
Application number: CN2011203701344U
Authority: CN
Inventors: 庄瑞国; 徐剑初; 谢晓春
Original assignee: WENZHOU GALAXY ELECTRONICS CO Ltd
Current assignee: WENZHOU GALAXY ELECTRONICS CO Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-07-11
Anticipated expiration: 2021-09-29

Abstract

The utility model relates to a flexible circuit board structure, in particular to a single-faced double-contact flexible circuit board, which comprises a single-faced copper clad plate and a cover film, wherein the single-faced copper clad plate consists of a base material layer and a copper foil layer; the cover film is provided with a strip window which is in contact with golden fingers. The single-faced double-contact flexible circuit board is characterized in that: small square windows are arranged on the base material layer corresponding to the golden fingers, so that the small square windows are arranged in interval; and the sizes of the small square windows are less than that of the golden finger areas. The utility model aims to provide a single-faced double-contact flexible circuit board which is difficult to fold and deform the golden fingers. Compared with the prior art, the single-faced double-contact flexible circuit board has the advantages of high product manufacturing yield, less cost waste, simple structure, high performance and the like.

Description

The two contact of a kind of single face FPC

Technical field

The utility model relates to the flexible circuitry plate structure, the two contact of particularly a kind of single face FPC.

Background technology

Miniaturization and light-weighted development along with various electronic equipments; Just require to adopt thin thickness, in light weight, have the important accessory of the FPC of superior bending performance and multifunction as electronic equipment simultaneously, single-sided flexible circuit board can only be connected with electronic component by the pad face; Though the double-faced flexible wiring board can two-sidedly be connected with electronic component; Hold thickness thicker relatively but it patches, therefore, the two contact of single face FPCs produce thus.

At present, the structure chart of the two contact of single face commonly used FPC such as Fig. 1, Fig. 2, shown in Figure 3, it comprises bottom coverlay 3, pure copper foil 2 and top layer coverlay 1; Be respectively equipped with the strip-like-

shaped window

5,4 that is used to contact golden finger on bottom coverlay 3 and the top layer coverlay 1, its golden finger 6 is in vacant state, therefore reaches in process of production in the follow-up use; Inevitably produce buckling deformation; Even rupture, influencing the yield of product, cost of manufacture is high.

Summary of the invention

The purpose of the utility model provides a kind of two contact of single face FPC that makes golden finger be difficult for buckling deformation.

For realizing above-mentioned purpose; The utility model adopts following technical solution: the two contact of a kind of single face FPC; Comprise single-side coated copper plate and the coverlay formed by substrate layer and copper foil layer, on described coverlay, be provided with the strip-like-shaped window that is used to contact golden finger, it is characterized in that on the said substrate layer of corresponding each golden finger, being provided with square wicket; Square wicket is at interval offers, said square small window size is less than each golden finger area size.

Owing to adopt said structure; Make the golden finger periphery obtain the support of bottom copper-clad plate base material, can satisfy the performance of the two contacts of single-sided flexible circuit board, strengthen crease-resistant the sell off shape ability of golden finger in production process and follow-up use again; The hollow out golden finger that overcomes the two contact of single face commonly used FPC is prone to the defective of buckling deformation; Improve the production of products yield, reduce cost waste, and the two contact of this single face FPC is simple in structure, performance good.

Description of drawings

Fig. 1 is the two contact of existing single face FPC structure section cutaway view.

Fig. 2 is Fig. 1 vertical view.

Fig. 3 is Fig. 1 upward view.

Fig. 4 is the circuit board structure cross-section cutaway view of present embodiment.

Fig. 5 is Fig. 4 vertical view.

Fig. 6 is Fig. 4 upward view.

Embodiment

Like Fig. 4, Fig. 5, shown in Figure 6; Present embodiment comprises single-side coated copper plate and the coverlay of being made up of substrate layer 30 and copper foil layer 20 10; Said coverlay 10 laminations are solidificated on the said copper foil layer 20; On described coverlay 10, be provided with the strip-like-shaped window 40 that is used to contact golden finger, on the said substrate layer 30 of corresponding each golden finger 60, be provided with square wicket 50, said square wicket 50 sizes are less than each golden finger area size; Square wicket 50 is at interval offers, form the golden finger 60 that the two sides can both contact with the external world.

The two contact of the single face of present embodiment flexible circuitry board manufacturing method specifically may further comprise the steps:

(1) blanking: material therefor is cut by making required specification.

(2) the strip-like-shaped window is made: coverlay 10 is the route protection layer of product, need get out other via holes such as coverlay registration holes and die-cut location hole; Adopt mould on coverlay 10, to punch out strip-like-shaped window 40 then.

(3) circuit is made: on the copper foil layer 20 of single-side coated copper plate, produce required top line.

(4) lamination solidifies: the coverlay 10 that obtains in the step (2) is affixed on the top line that obtains in the step (3), then its lamination is solidificated on the copper foil layer 20.

(5) square wicket is made: on the substrate layer 30 of the single-side coated copper plate that in step (4), obtains; The square wicket 50 of position laser cutting of corresponding each golden finger; Square wicket 50 is at interval offers, the square small window size that cuts gained simultaneously is more smaller than each golden finger area size.Concrete size can be confirmed according to the requirement of actual product.

(6) plasma treatment: remove the residue on the square wicket 50 with plasma processing method, improve the quality of golden finger surface-coated.

(7) surface treatment: remove oxide on the golden finger 60 etc. with surface treatment methods such as brush board, chemical cleaning, improve the quality of golden finger 60 surface-coated.

(8) surface-coated: be coated with at the exposed copper conductive surfaces of the two contact of single face FPC and be covered with noble metal, both anti-than oxidized, also can have favorable conductive and wear-resisting effect.

(9) silk-screen character: on product, stamp required character mark through the silk-screen mode.

(10) electrical measurement: electric-examination tests out qualified product.

(11) sharp processing: produce required product design through mode such as die-cut.

In the above-described embodiments; Be after coverlay 10 that strip-like-shaped window 40 will die-cutly be arranged earlier and the single-side coated copper plate lamination curing that is manufactured with circuit; Utilize laser on bottom substrate, to cut square wicket 50 again, and these square wicket 50 sizes are more smaller than each golden finger area size, make golden finger 60 peripheries obtain the support of bottom copper-clad plate base material 30; Can satisfy the performance of the two contacts of single-sided flexible circuit board; Strengthen crease-resistant the sell off shape ability of golden finger 60 in production process and follow-up use again, the hollow out golden finger that overcomes the two contact of single face commonly used FPC is prone to the defective of buckling deformation, improves the production of products yield; Reduce cost waste, and the two contact of this single face FPC is simple in structure, performance is good.

Claims

1. the two contact of single face FPCs; Comprise single-side coated copper plate and the coverlay (10) formed by substrate layer (30) and copper foil layer (20); On described coverlay (10), be provided with the strip-like-shaped window (40) that is used to contact golden finger (60); It is characterized in that on the said substrate layer (30) of corresponding each golden finger (60), being provided with square wicket (50), square wicket (50) is at interval offers, said square wicket (50) size is less than each golden finger (60) area size.