CN109152217A

CN109152217A - A kind of roll-to-roll production technology of FPC

Info

Publication number: CN109152217A
Application number: CN201810971051.7A
Authority: CN
Inventors: 曹明峰; 朱鹏
Original assignee: KUNSHAN LONGPENG PRECISION ELECTRONICS Co Ltd
Current assignee: KUNSHAN LONGPENG PRECISION ELECTRONICS Co Ltd
Priority date: 2018-08-24
Filing date: 2018-08-24
Publication date: 2019-01-04

Abstract

The invention discloses a kind of roll-to-roll production technology of FPC, the roll-to-roll production technology of this kind of FPC is the following steps are included: RTR drills；RTR sinks copper/copper facing；RTR press mold；RTR contraposition/exposure；RTR development；RTR etches/move back film；AOI automatic optics inspection；RTR patch, pressure and baking cover film；RTR laser open covering film；RTR table surface treatment；Automatic machine pastes auxiliary material；RTR laser formation, FPC technique produce to laser formation from sawing sheet and are all made of roll-to-roll process, and RTR collocation laser technology replaces traditional punching machine punching.By the above-mentioned means, the present invention replaces traditional punching machine punching, labour is saved, production automation degree is improved, improves product efficiency and yield, reduces production cost.

Description

A kind of roll-to-roll production technology of FPC

Technical field

The present invention relates to work flexible circuit board production technical fields, more particularly to a kind of roll-to-roll production technology of FPC.

Background technique

The production of flexible circuit board (Flexible Printed Circuit abbreviation FPC) traditional flake belongs to labor-intensive Industry, time-consuming and laborious, large labor intensity, productivity are low and dimensional stability is relatively difficult to guarantee, and manufacture high precision fine linewidth/line Away from FPC qualification rate it is lower, with the development of science and technology, human cost improves, the raising of quality requirements and market efficiency Become FPC industry short slab in the urgent need to address Deng more and more sharp problem.

The appearance of roll-to-roll (Roll to Roll abbreviation RTR) technique alleviates the above problem to a certain extent, however Roll to Roll technique only arrives circuit etching in FPC industrial application and completes at present, and coiled strip material is then sub-partitioned into piece Shape production, the production technology after dividing is by completely returning to most traditional mode, and Roll to Roll technique is only to solve at present Problem before route of having determined molding, in addition, to pass through before the fitting of existing cover film: sawing sheet-drilling-slitting-punching-is to be fit Equal production procedures, it is therefore an objective to cover film be punched without the part retained with mold in advance, undoubtedly increase workload and throwing Enter cost.

Summary of the invention

The invention mainly solves the technical problem of providing a kind of roll-to-roll production technology of FPC, RTR arranges in pairs or groups laser technology, Replace traditional punching machine punching, save labour, improve production automation degree, improves product efficiency and yield, reduction are produced into This.

In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of roll-to-roll production work of FPC is provided Skill, the roll-to-roll production technology of this kind of FPC the following steps are included:

RTR drilling；RTR sinks copper/copper facing；RTR press mold；RTR contraposition/exposure；RTR development；RTR etches/move back film；AOI is certainly Dynamic optical detection；RTR patch, pressure and baking cover film；RTR laser open covering film；RTR table surface treatment；Automatic machine pastes auxiliary material；RTR Laser formation.

Preferably, cover epiphragma using vacuum film pressing machine in RTR press mold step, 50~60 DEG C of temperature, pressure 3~ 5Kg presses 20s.

Preferably, exposure machine and the film, 500~1000mJ/cm of ultraviolet light are used in RTR contraposition/step of exposure², grade Number 8/21.

Preferably, developing line uses 1.0%Na in RTR development step₂CO₃, 30 DEG C of temperature, time 30s, pressure 0.18MPa。

Preferably, RTR, which is pasted, presses and toasted, uses baking oven in cover film step, and 150 DEG C of temperature, time 90min.

Preferably, the replaceable photosensitive-ink of cover film or thermosetting oil used in RTR patch, pressure and baking cover film step Ink.

Preferably, the part that needs to open a window in RTR laser open covering film step is opened a window using roll-to-roll laser, advantage It is to save the mold of punching cover film, does not need cover film fitting or ink printing precision, need reserved pad locations straight It connects and is outputed by RTR laser, precision ± 0.03mm.

Compared with prior art, the beneficial effects of the present invention are:

1.RTR collocation laser technology replaces traditional punching machine punching；

2. saving labour；

3. improving production automation degree；

4. improving product efficiency and yield；

5. reducing production cost.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of the roll-to-roll production technology of FPC.

Specific embodiment

Present pre-ferred embodiments are described in detail with reference to the accompanying drawing, so as to can be easier to the advantages of invention with feature In being readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.

Referring to Fig. 1, the embodiment of the present invention includes:

A kind of roll-to-roll production technology of FPC, the roll-to-roll production technology of this kind of FPC the following steps are included:

It carries out covering epiphragma using vacuum film pressing machine in RTR press mold step, 50~60 DEG C of temperature, 3~5Kg of pressure, press 20s。

Exposure machine and the film, 500~1000mJ/cm of ultraviolet light are used in RTR contraposition/step of exposure², series 8/21.

Developing line uses 1.0%Na in RTR development step₂CO₃, 30 DEG C of temperature, time 30s, pressure 0.18MPa.

RTR, which is pasted, presses and toasted, uses baking oven in cover film step, and 150 DEG C of temperature, time 90min.

The replaceable photosensitive-ink of cover film or thermosetting ink used in RTR patch, pressure and baking cover film step.

The part that needs to open a window in RTR laser open covering film step is opened a window using roll-to-roll laser, and advantage is to save It is punched the mold of cover film, cover film fitting or ink printing precision is not needed, reserved pad locations is needed directly to be swashed by RTR Light is outputed, precision ± 0.03mm.

A kind of roll-to-roll production technology of FPC of the present invention, RTR collocation laser technology replace traditional punching machine punching, save and work Power improves production automation degree, improves product efficiency and yield, reduces production cost.

The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims

1. a kind of roll-to-roll production technology of FPC, it is characterised in that: the roll-to-roll production technology of this kind of FPC the following steps are included:

RTR drilling；RTR sinks copper/copper facing；RTR press mold；RTR contraposition/exposure；RTR development；RTR etches/move back film；The automatic light of AOI Learn detection；RTR patch, pressure and baking cover film；RTR laser open covering film；RTR table surface treatment；Automatic machine pastes auxiliary material；RTR laser Molding.

2. the roll-to-roll production technology of a kind of FPC according to claim 1, it is characterised in that: using true in RTR press mold step Empty film laminator carries out covering epiphragma, 50~60 DEG C of temperature, 3~5Kg of pressure, presses 20s.

3. the roll-to-roll production technology of a kind of FPC according to claim 1, it is characterised in that: in RTR contraposition/step of exposure Using exposure machine and the film, 500~1000mJ/cm of ultraviolet light², series 8/21.

4. the roll-to-roll production technology of a kind of FPC according to claim 1, it is characterised in that: developing line in RTR development step Using 1.0%Na₂CO₃, 30 DEG C of temperature, time 30s, pressure 0.18MPa.

5. the roll-to-roll production technology of a kind of FPC according to claim 1, it is characterised in that: RTR patch, pressure and baking covering In film step use baking oven, 150 DEG C of temperature, time 90min.

6. the roll-to-roll production technology of a kind of FPC according to claim 1, it is characterised in that: RTR patch, pressure and baking covering The replaceable photosensitive-ink of the cover film used in film step or thermosetting ink.

7. the roll-to-roll production technology of a kind of FPC according to claim 1, it is characterised in that: RTR laser open covering film step Middle needs windowing part is opened a window using roll-to-roll laser, precision ± 0.03mm.