Huizhou V car brake light soft board where have

Circuit board working principle: is the use of plate insulation material separated from the surface copper foil conductive layer, so that the current along the pre-designed route in various components flow to complete such as work, amplification,

Attenuation, modulation, demodulation, coding and other functions. On a basic PCB, the parts are concentrated on one side and the wires are concentrated on the other. Because the wire only appears on one side, so this PCB

It's called a single panel. A multilayer board, with multiple layers of wires, requires a proper circuit connection between the two layers, and the bridge between the circuits is called the guide hole (VIA). The basic design process of circuit board can be divided into the following four

Step:

V automobile brake light soft plate aluminum plate is a kind of metal 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. Commonly seen in LED lighting products V automotive brake light soft plate. There are two sides, the white side is welded LED pin, the other side is aluminum color, generally daub heat conduction paste and heat conduction part

Contact. There are ceramic substrates and so on. Advantages of aluminum substrate :1. More suitable for SMT process 2. RoHs requirements 3. The heat dissipation is effectively dealt with so as to reduce the running temperature of the module

Degree, prolong service life, improve reliability; V Automotive brake lamp soft plate 6, aluminum substrate pad and line scratch and crush bubble are not up to the requirements of the product. Aluminum substrate surface color yellow do not connect

Closed. 8. The line and pad are consistent with the engineering drawings and samples, the line wireless is large, the line thin damage and other phenomena, the pad has no ink, no damage and too large or too small and other phenomena

Diagram design - circuit schematic diagram design is mainly the use of ProtelDXP schematic editor to draw schematic diagram. (2) Generate network report -- network report is to display circuit principle and each component

It is the bridge and 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.

Thus provide convenience for PCB design. A. Aluminum substrate technical requirements, the main technical requirements are: size requirements, including plate size and deviation, thickness and deviation, verticality and warpage;

Appearance, including cracks, scratches, burrs and delamination, aluminum oxide film requirements; Performance, including peel strength, surface resistivity, minimum breakdown voltage, dielectric constant, combustion and thermal resistance

O.

The structure of FPC double layer soft plate: when the circuit is too complex, the single layer plate can not be routed or copper foil is needed for grounding shielding, it is necessary to choose double layer

There are three differences between glass fiberboard and aluminum based PCB :A. In terms of price, the important components of LED fluorescent tubes are: circuit board,LED chip and

Drive power supply. Common circuit boards come in two types: aluminum and fiberglass. Compare the price of fiberglass and aluminum substrate, the price of fiberglass will be much cheaper, but the performance of aluminum substrate

Would be better than fiberglass. B. Technology: According to different materials and manufacturing process, fiberglass can be divided into three types: double-sided copper foil fiberglass, perforated copper foil fiberglass and single-sided copper foil

Fiberglass board. Of course, the price of fiberglass panels made of different materials will vary. Fiberglass panels are made of different materials and technologies at different prices. LED fluorescent tube with fiberglass

The heat dissipation of the panels is not as good as that of LED light tubes containing aluminum. The most typical difference between laminates and single laminates is the addition of a perforation structure to connect the layers of copper foil. General substrate + transparent adhesive + copper

The first processing process of foil is to make holes. First in the base material and copper foil drilling, after cleaning coated with a certain thickness of copper, through the hole is ready. After that, the process is almost the same as the single-ply.