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FPC

- Jan 17, 2018 -

 Flexible PCB is a highly reliable, flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high distribution line density, light weight, thin thickness and good bending.


柔性电路板产前处理

Prenatal treatment of flexible PCB



在生产过程中,为了防止开短路过多而引起良率过低或减少钻孔、压延、切割等粗工艺问题而导致的FPC板报废、补料的问题,及评估如何选材方能达到客户使用的最佳效果的柔性线路板,产前预处理显得尤其重要。

In the production process, in order to prevent short circuit caused by excessive low yield or reduce drilling, rolling, cutting and other rough process problems that led to the FPC board scrap and material supplement, flexible circuit board and assess how the material can achieve the best effect of customer use, prenatal pretreatment is particularly important.

产前预处理,需要处理的有三个方面,这三个方面都是由工程师完成。首先是FPC板工程评估,主要是评估客户的FPC板是否能生产,公司的生产能力是否能满足客户的制板要求以及单位成本;如果工程评估通过,接下来则需要马上备料,满足各个生产环节的原材料供给,最后,工程师对:客户的CAD结构图、gerber线路资料等工程文件进行处理,以适合生产设备的生产环境与生产规格,然后将生产图纸及MI(工程流程卡)等资料下放给生产部及文控、采购等各个部门,进入常规生产流程。

Pre - prenatal treatment needs to be handled in three aspects, all of which are completed by the Engineer in the three aspects. The first is the assessment of FPC in engineering, mainly evaluate the FPC customer whether it can produce, whether the company's production capacity to meet the requirements of customers and the system board unit cost; if the project evaluation through then need to immediately prepare raw materials to meet the various production processes for, finally, engineers on the structure diagram,: CAD customer Gerber data line project files, suitable for the production environment and the production specifications of production equipment, and production drawings and MI (engineering process card) data transferred to the production department and document control, procurement and other departments, the conventional production process.




柔性电路板生产流程

Flexible circuit board production process



柔性电路板双面板制

Flexible circuit board double board system


开料→ 钻孔→ PTH → 电镀→ 前处理→ 贴干膜 → 对位→曝光→ 显影 → 图形电镀 → 脱膜 → 前处理→ 贴干膜 →对位曝光→ 显影 →蚀刻 → 脱膜→ 表面处理 → 贴覆盖膜 → 压制 → 固化→ 沉镍金→ 印字符→ 剪切→ 电测 → 冲切→ 终检→包装 → 出货

Open material, hole drilling, PTH, plating, pretreatment, paste dry film, para, exposing, developing, stripping, figure plating, pretreatment, dry film lamination, exposure, developing, etching, stripping, surface treatment, cover film, pressing, solidifying and electroless nickel gold, India, shear character electrical measurement, punching, and final inspection, packing and shipment






柔性电路板单面板制

Single panel system of flexible circuit board


开料→ 钻孔→贴干膜 → 对位→曝光→ 显影 →蚀刻 → 脱膜→ 表面处理 → 贴覆盖膜 → 压制 → 固化→表面处理→沉镍金→ 印字符→ 剪切→ 电测 → 冲切→ 终检→包装 → 出货

They are: material opening, drilling, drying, film developing, aligning, exposing, developing, etching, debinding, surface treatment, covering, film pressing, solidification, surface treatment, nickel deposition, printing, character printing, cutting, electrical testing, punching, final inspection, packaging and shipment.





柔性电路板特性

Characteristics of flexible circuit board



⒈短:组装工时短

The short short assembly time:

所有线路都配置完成.省去多余排线的连接工作

All lines are configured to complete. Save redundant lines of connection work





FPC电路板

FPC circuit board



⒉ 小:体积比PCB小

The small volume is smaller than PCB

可以有效降低产品体积.增加携带上的便利性

It can effectively reduce the volume of the product. Increase the convenience of carrying.

⒊ 轻:重量比 PCB (硬板)轻

3: light weight ratio PCB (hard) light

可以减少最终产品的重量

The weight of the final product can be reduced.

4 薄:厚度比PCB薄

4 thinner: thinner than PCB thinner

可以提高柔软度.加强再有限空间内作三度空间的组装

Can improve the softness. Strengthen the assembly of three degree space in the limited space





柔性电路板应用

Application of flexible circuit board



移动电话

Mobile phone

着重柔性电路板轻的重量与薄的厚度.可以有效节省产品体积,轻易的连接电池,话筒,与按键而成一体.

Focusing on the light weight and thin thickness of the flexible circuit board, it can effectively save the volume of the product, easily connect the battery, the microphone, and the key.

电脑与液晶荧幕

Computer and LCD screen

利用柔性电路板的一体线路配置,以及薄的厚度.将数位讯号转成画面,透过液晶荧幕呈现

Using a single line configuration of a flexible circuit board and a thin thickness. The digital signal is turned into a picture and is presented through the LCD screen.

CD随身听

CD Walkman

着重柔性电路板的三度空间组装特性与薄的厚度. 将庞大的CD化成随身携带的良伴

The three dimension focuses on the flexible circuit board assembly properties and thin thickness. The huge companion carry into CD

磁碟机

Disc machine

无论硬碟或软碟,都十分依赖FPC的高柔软度以及0.1mm的超薄厚度,完成快速的读取资料. 不管是PC或NOTEBOOK.

Both hard and soft discs are very dependent on the high softness of FPC and the ultra-thin thickness of 0.1mm to complete fast reading data, whether it's PC or NOTEBOOK..

最新用途

Latest use

硬盘驱动器(HDD,hard disk drive)的悬置电路(Su印ensi。n cireuit)和xe封装板等的构成要素

The mounting circuit of the HDD (hard disk drive) (Su print Ensi). The components of the N cireuit) and the Xe packaging board

无线充电线圈阵列,将电磁集中在一定区域,降低空间传递消耗,从而提高电能转换效率。

The wireless charging coil array, which concentrates the electromagnetic field in a certain area, reduces the consumption of space transmission, thus improving the efficiency of electric energy conversion.





柔性电路板基本结构

Basic structure of flexible circuit board



铜箔基板(Copper Film)

Copper foil substrate (Copper Film)





铜箔:基本分成电解铜与压延铜两种. 厚度上常见的为1oz 1/2oz 和 1/3 oz

Copper foil: it is basically divided into two kinds: electrolytic copper and calendering copper. The common thickness is 1oz 1/2oz and 1/3 oz

基板胶片:常见的厚度有1mil与1/2mil两种.

Substrate film: the common thickness has two kinds of 1mil and 1/2mil.

胶(接着剂):厚度依客户要求而决定.

Glue (agent): the thickness depends on the customer's requirement.

覆盖膜保护胶片(Cover Film)

Cover film protection film (Cover Film)

覆盖膜保护胶片:表面绝缘用. 常见的厚度有1mil与1/2mil.

Cover film protection film: surface insulation. Common thickness is 1mil and 1/2mil.

胶(接着剂):厚度依客户要求而决定.

Glue (agent): the thickness depends on the customer's requirement.

离形纸:避免接着剂在压着前沾附异物;便于作业.

Out of shape paper: avoid the following agent to be attached to the foreign body before pressing; easy to work.

补强板(PI Stiffener Film)

PI Stiffener Film

补强板: 补强FPC的机械强度,方便表面实装作业.常见的厚度有3mil到9mil.

Reinforcing plate: the mechanical strength of reinforced FPC, surface mount convenient operation. The common thickness of 3mil to 9mil.

胶(接着剂):厚度依客户要求而决定.

Glue (agent): the thickness depends on the customer's requirement.

离形纸:避免接着剂在压着前沾附异物.

Out of shape paper: avoid the following agent to be attached to the foreign body before pressing.

EMI:电磁屏蔽膜,保护线路板内线路不受外界(强电磁区或易受干扰区)干扰。

EMI: electromagnetic shielding film, the protection of line in the circuit board is not disturbed by the outside world (strong electromagnetic area or easily disturbed area).





柔性电路板优缺点

Advantages and disadvantages of flexible circuit board



多层线路板的优点:组装密度高、体积小、质量轻,因为高密度装配、部件(包括零部件)间的连线减少,从而增加了可靠性;能增加接线层,然后增加设计弹性;也可以构成电路的阻抗,可形成具有一定的高速传输电路,可以设定电路、电磁屏蔽层,还可安装金属芯层满足特殊热隔热等功能与需求;安装方便、可靠性高。

The advantages of multilayer circuit board assembly: high density, small size, light weight, high density assembly, because components (including the components) the connection between reduced, thereby increasing the reliability; can increase the wiring layer, and then increase the design flexibility; impedance can constitute the circuit, can be formed with high-speed transmission circuits and can setting circuit, electromagnetic shielding layer, core layer can also install metal heat insulation and other functions to meet the special needs of convenient installation, high reliability.

多层pcb板的缺点(不合格):成本高、周期长;需要高可靠性检验方法。多层印制电路是电子技术、多功能、高速度、小体积大容量方向的产物。随着电子技术的发展,特别是大规模和超大规模集成电路的广泛应用,多层印制电路密度较高的快速、高精度、高数改变方向出现细纹。

The shortcomings of multi-layer PCB board (unqualified): high cost, long period, high reliability test method. Multi-layer printed circuit is the product of electronic technology, multi-function, high speed, small volume and large capacity direction. With the development of electronic technology, especially the wide application of large-scale and ultra large scale integrated circuit, fast, high precision, high high density multilayer printed circuit to change the direction of the appearance of fine lines.





柔性电路板贴片要点

Key points of flexible circuit board



FPC表面SMT的工艺要求与传统硬板PCB的SMT解决方案有很多不同之处,要想做好FPC的SMT工艺,最重要的就是定位了。因为FPC板子的硬度不够,较柔软,如果不使用专用载板,就无法完成固定和传输,也就无法完成印刷、贴片

The process requirements FPC surface SMT and conventional PCB and SMT solutions have many differences, SMT process to do FPC, the most important is the location. Because the hardness of the FPC board is not enough, it is soft. If you do not use the special board, it can not be fixed and transmitted, and the printing and patch can not be completed.