Dongguan ultra thin aluminum FPC board design

Circuit board (PCB) alias: circuit board, PCB board, aluminum substrate, HF board, ultra-thin circuit board, ultra-thin circuit board, printing (copper etching technology) circuit board and so on.Because of the current electronic products are constantly small with fine, circuit board can make circuit miniaturization, intuitive, for the batch production of fixed circuit and optimization of electrical layout plays an important role, so the application is more and more widely.

Aluminum base plate 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 respectively circuit layer (copper foil), insulation layer and metal base layer. 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 thermal paste and thermal part contact. There are ceramic substrates and so on.

Advantages of 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; 7, 3M adhesive paper - mainly used for 0.4mm and above thickness OF FR4 and FPC paste, as well as FPC and customer product assembly fixed, the use of FPC auxiliary materials, ultimately according to the customer's use of the environment and functional requirements to determine the ultra-thin aluminum FPC board.

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, the price of aluminum substrate accounts for 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 single panel is more skilled, and the process and technology of multi-layer board is more mature abroad, there is more to understand. FPC circuit board is classified according to its medium and structure.

The arrangement is as follows: 1. Single-layer soft board structure FPC circuit board The flexible board of this structure is the most simple flexible board. This is usually the base material + transparent adhesive + copper foil is a set of bought original material

Material, of course, protective film + transparent adhesive is another kind of raw materials bought.

Ultra thin aluminum based FPC plate in recent years, flexible circuit board (FPC) has become one of the fastest growing sub-industries in the printed circuit board industry. IDTechEx predicts that the flexible circuit board (FPC) market will grow to $26.2 billion by 2020 for ultra-thin aluminum substrates (1) Schematic design -- schematic design is based on ProtelDXP schematic editor to draw schematic diagrams. (2) generate reports - network statement that shows the links of all components in the circuit principle and relationship of the report, it is connected to circuit schematic design and circuit board design of bridge and link, through the network statements circuit schematic diagram, can quickly find the components, the relation between which provide convenience for the back of the PCB design. How to weld FPC? What do you need to pay attention to? FPC welding procedure: 1. Before welding, apply flux on the pad and treat it again with a soldering iron to avoid bad tin plating or oxidation on the pad, resulting in bad welding. Generally, the chip does not need to be treated.