Dongguan FPC line is what, what is the function?

What is FPC flexible circuit board

Speaking of FPC flexible circuit board, you must know or familiar with FPC flexible circuit board is what? FPC can be divided into many kinds according to the function, such as FPC flexible CIRCUIT board antenna, FPC flexible CIRCUIT board touch screen, FPC flexible circuit board capacitive screen, etc. FPC flexible circuit board is one of them. Generally speaking, FPC flexible circuit board is the connection line group that can be bent in a certain degree.

Two.FPC flexible circuit board functions and uses

The function of FPC flexible circuit board is to connect two related parts or products. Now, a lot of products are used to line, because it has a certain flexibility in the printer. FPC flexible circuit board has been used in many products such as mobile phone and notebook. FPC flexible circuit board manufacturers are mainly concentrated in the Pearl River Delta region, which is headed by Shenzhen.

Composition and parameters of FPC flexible circuit board

FPC flexible circuit board is a kind of FPC flexible circuit board, therefore, its composition and the composition of FPC flexible circuit board is the same. FPC flexible circuit boards are generally long strips with pluggable needles at both ends that can be directly connected to connectors or welded to the product. The middle is generally the line, because the FPC flexible circuit board needs a certain flexibility, therefore, the base material is generally calendered copper, tortuous resistance, flexible.

Line parameters:

The minimum line width line spacing is 3mil/3mil;

Minimum wire hole finished product up to 0.15mm.

FPC flexible circuit board technology

FPC flexible circuit board used in the surface treatment process is generally gold, occasionally oxidation. But the anti-oxidation process can not withstand high temperature, the environmental bearing capacity is worse than the gold sink, the two prices are similar, therefore, most of the gold sink process. In addition, there are tin plating and tin spraying process, but the FPC flexible circuit board temperature is generally below 280 degrees Celsius, and tin spraying will have more than 300 degrees Celsius temperature, and the solder paste hardness is small, so it is rarely used.

Five.FPC flexible circuit board advantages and disadvantages

Advantages:

Using FPC flexible circuit board can greatly reduce the volume and weight of electronic products, suitable for electronic products to high density, miniaturization, high reliability direction development needs. Therefore, FPC flexible circuit board has been widely used in aerospace, military, mobile communications, portable computers, computer peripherals, PDA, digital cameras and other fields or products. In addition, it can be arranged according to the spatial layout requirements, and can be moved and expanded in three-dimensional space, thus achieving the integration of component assembly and wire connection.

Disadvantages:

Cost should be the most important consideration in the production process. Since FPC flexible circuit boards are designed and manufactured for special applications, the initial circuit design, wiring and photographic substrates are expensive. Unless there is a special need to use soft FPC, it is usually best not to use it in a small number of applications. In addition, since a lot of effort has been put into doing it, the maintenance of late is also essential, so tin welding and rework need to be trained personnel operation.

Storage of FPC flexible circuit board

Unlike other products, FPC flexible circuit boards are not in contact with air or water. So how do we store this product correctly? Believe that read the following content, we will find the answer.

First of all, the vacuum of FPC flexible circuit board can not be damaged. When packing, you need to surround the side of the box with a layer of bubble film. The water absorption of the bubble film is better, so that it plays a very good role in moisture-proof.

Secondly, after sealing the box must be separated from the wall, stored away from the ground in a dry and ventilated place, but also avoid sunlight. The temperature of the warehouse is best controlled at 23±3℃, 55±10%RH. Under such conditions, PCB boards with surface treatment such as gold, electrogold, tin spraying and silver plating can generally be stored for 6 months, and PCB boards with surface treatment such as silver, tin and OSP can generally be stored for 3 months.