Design of FPC Aluminum substrate for Zhongshan ultra-thin flexible circuit board

Circuit board (PCB) alias: flexible CIRCUIT board FPC circuit board, PCB board, aluminum substrate, high-frequency board, ultra-thin circuit board, ultra-thin circuit board, printing (copper etching technology) circuit board and so on. Due to the current

Electronic products are constantly small with fine, circuit board can make circuit miniaturization, intuitive, for the mass production of fixed circuit and optimization of electrical layout plays an important role, so the application is also increasingly

Widely.

Aluminum substrate is a kind of metal base copper clad plate with good heat dissipation function. Generally, a single panel is composed of three layers, which are circuit layer (copper foil), insulation layer and gold

At the grass-roots level. Common in LED lighting products ultra-thin aluminum substrate has positive and negative sides, the white side is welded LED pin, the other side presents aluminum color, generally coated with thermal coagulation and

Thermal part contact. There are ceramic substrates and so on.

Advantages of flexible CIRCUIT board FPC aluminum substrate:

1, more suitable for SMT process.

2. Meet RoHs requirements.

3, the heat dissipation through the effective treatment, so as to reduce the module operating temperature, prolong the service life, improve reliability; Ultra thin aluminum substrate 7, 3M adhesive paper - mainly used for 0.4mm and above thickness

FR4 and FPC paste, as well as flexible CIRCUIT board FPC and customer product assembly fixed, flexible circuit board FPC auxiliary material use, ultimately according to the customer's use environment and functional requirements to determine ultra-thin aluminum base

Plate.

4. As the volume decreases, the assembly area of radiator and other hardware (including thermal interface materials) is reduced, the product volume is reduced, and the cost of hardware and assembly is reduced.

5. Good mechanical endurance, compared with some simple process to make ceramic circuit boards. Disadvantages of aluminum substrate :1. High cost: compared with other affordable goods, aluminum substrate

The price of more than 30% of the product price is not in line with the standard. 2. At present, the mainstream can only do single panel, and it is difficult to do double panel technology: at present, the domestic are single panel

Have to be more skilled, the process and technology of multi-layer board is more mature abroad, there are more people to understand. FPC circuit board is classified according to its medium and structure.

The layout is as follows: 1. Single-layer soft board Flexible circuit board FPC circuit board The flexible board of this structure is the simplest flexible board. It is usually bought in a set of substrate + cellophane + copper foil

Of course, protective film + transparent glue is another kind of raw materials bought.

In recent years, flexible circuit boards (FPC) have become one of the fastest growing subindustries in the PRINTED circuit board industry. According to IDTechEx, by 2020,

Flexible circuit board (FPC) market size will grow to us $26.2 billion ultra thin aluminum substrate (1) circuit schematic design -- circuit schematic design is mainly using ProtelDXP schematic design

To draw the schematic diagram. (2) Generating network report -- Network report is a report that shows the link relationship between circuit principle and various components. It is the link between circuit schematic design and circuit board design

Through the network report of circuit schematic diagram, you can quickly find the connection between components, so as to provide convenience for PCB design. How to weld FPC board of flexible circuit board

Pick up? What do you need to pay attention to? Flexible circuit board welding method operation steps: 1. Before welding on the pad coated with flux, with a soldering iron treatment again, so as not to solder plate bad or oxygen

, resulting in bad welding, chips generally do not need to deal with.