Guangzhou FPC light strip soft board material

Circuit board working principle: the use of plate insulation material separated from the surface of the copper foil conductive layer, so that the current along the pre-planned route in the various components of the 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 guide wire only appears on one side, the PCB is called a single panel. Multilayer plate. The layers have wires, and it is necessary to have a proper electrical connection between the two layers. The bridge beam between the two circuits is called the guide hole (VIA). The basic circuit board design process can be divided into the following four steps: FPC lamp strip flexible plate aluminum substrate technical requirements, so far, there is no international aluminum base copper clad plate standard. China's 704 factory is responsible for drafting the electronic industry military standard "Flame retardant aluminum base copper clad laminate specification" FPC light strip soft board

Classification of aluminum base plate: aluminum base copper clad plate is divided into three categories: one is the general aluminum base copper clad plate, the insulation layer is composed of epoxy glass cloth bonding sheet; The second is high heat dissipation aluminum base copper clad plate, the insulation layer is made of high thermal conductivity epoxy resin or other resin; The insulation layer is composed of polyolefin resin or polyimide resin glass cloth bonded sheet. Aluminum based copper clad plate and conventional FR-4 copper clad plate is a big difference in heat dissipation, compared with 1.5mm thickness OF FR-4 copper clad plate and aluminum based copper clad plate, the former thermal resistance 20~22, the latter thermal resistance 1.0~2.0, the latter is much smaller. The main technical requirements are: size requirements, including board size and deviation, thickness and deviation, verticality and warpage; Appearance, including cracks. Scratches, burrs and delamination. Aluminum oxide film and other requirements; Performance, including peel strength. Surface resistivity. Low penetration voltage. Dielectric constant. Flammability and thermal resistance requirements. FPC light strip soft board 7.3m adhesive paper - mainly used for FR4 and FPC paste with thickness of 0.4mm and above, as well as FPC and customer product assembly fixed; The use of FPC auxiliary materials, ultimately according to the customer's use environment and functional requirements to determine the FPC light strip soft board

There are three differences between fiberglass board and aluminum substrate PPCB :A. In terms of price, the important components of LED solar lamps are: circuit board,LED chip and drive power supply. Common circuit boards come in two types: aluminum and fiberglass. Comparing the price of fiberglass with that of aluminum, fiberglass will be much cheaper, but the performance of aluminum will be better than fiberglass. B. Technical aspects: According to different materials and manufacturing process, fiberboard can be divided into three types: double-sided copper foil fiberboard, perforated copper foil fiberboard and single-sided copper foil fiberboard. 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 tubes and fiberglass panels do not dissipate heat as well as LED fluorescent tubes with aluminum-based panels. The classification of FPC circuit board is classified according to its medium and structure, which is sorted as follows: 1, single layer soft board structure FPC circuit board this structure of the flexible board is the most simple structure of the flexible board. This is usually the base material + transparent adhesive + copper foil is a set of bought raw materials, of course, protective film + transparent adhesive is another kind of bought raw materials.

FPC lamp strip flexible board (3) Over high voltage test: Aluminum base board of communication power supply requires 100% high voltage test. Some customers require DIRECT current, some require alternating current, and the voltage is 1500V and 1600V. Time is 5 seconds.10 seconds.100% printed board for testing FPC light strip soft board (1) circuit schematic diagram design -- circuit schematic diagram design is mainly the use of ProtelDXP schematic editor to draw schematic diagram. (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. Dirt on the surface. Holes and aluminum base edge burrs. Line serrated. Any damage to the insulation will result in a hV test fire. Electric leakage. Breakdown. The pressure test board is layered. Blister. All rejected.