Zhanjiang laser hair cap FPC production standard

Compared with PCB in terms of heat dissipation, aluminum substrate is more superior to PCB in terms of heat dissipation, and its thermal conductivity is different. Aluminum substrate is a kind of PCB, and the price of aluminum substrate is more expensive. Aluminum substrates shall not be perforated. The coefficient of thermal conductivity of aluminum plate is aluminum plate quality evaluation is an important indicator of one of the other two most important factors are aluminum plate thermal resistance and withstand voltage value of the aluminum plate, aluminum plate in the market now generally coefficient of thermal conductivity is 2.00.1 commonly, for the coefficient of thermal conductivity of aluminum plate concrete can be measured by instruments, The thermal conductivity of aluminum substrate will directly affect the price of aluminum substrate. In general, the higher the thermal conductivity of aluminum substrate, the higher the price of aluminum substrate will be.

Laser cap FPC aluminum substrate and PCB difference: for some just engaged in the aluminum substrate industry partners will always have such a question, that is, what is the difference between the aluminum substrate and PCB board, for this question and the following xiaobi specific to tell you about the difference between the two in the end? PCB board and aluminum substrate are designed according to the requirements of PCB board laser hair cap FPC

At present, the aluminum based PCB board in the market is generally single-sided aluminum substrate, PCB board is a large type, aluminum substrate is only a type of PCB board, is aluminum fund board, because it has good thermal conductivity, generally used in the LED industry. Advantages of aluminum substrate PCB: A. Heat dissipation is significantly better than that of standard FR-4 structures. B. The dielectric used is usually 5 to 10 times the thermal conductivity of conventional epoxy glass and 1/10 of the thickness. C. Heat transfer index is more efficient than traditional rigid PCBS. D. You may use copper weights lower than those shown on IPC recommended charts. 1. Audio equipment: input amplifier, output amplifier, balance amplifier, audio amplifier, preamplifier, power amplifier, etc. 2. Power supply equipment: switching voltage regulator 'DC/AC converter SW voltage regulator, etc.

Laser hair cap FPC three. Aluminum substrate PCB manufacturing specification,1. Aluminum substrate is often used in power devices, power density is high, so the copper foil is thicker. If more than 3oz copper foil is used, thick copper foil etching processing needs engineering design line width compensation, otherwise, the line width will be out of tolerance after etching now the high thermal conductivity is usually ceramic. Copper, but because of considering the cost of doubt, most of the aluminum substrate on the market now, the corresponding thermal conductivity of aluminum substrate is the parameter we care about, the higher the thermal conductivity is one of the symbols of the better function. Aluminum substrate is a common metal base copper-clad aluminum substrate, which has good thermal conductivity, electrical insulation and machining function. The thermal conductivity of aluminum substrate usually has 1.0, 1.5, 2.0, the specific situation depends on the need for goods. 2. The aluminum substrate surface of the aluminum substrate must be protected with a protective film in the process of PCB processing, otherwise, some chemicals will corrode the aluminum substrate surface, resulting in appearance damage. And the protective film is easy to be bruised, resulting in a gap, which requires the whole PCB processing process must plug.

Laser hair cap FPC (3) over high voltage test: aluminum base plate of communication power supply requires 100% high voltage test, some customers require DIRECT current, some require alternating current, voltage requirements 1500V, 1600V, time is 5 seconds, 10 seconds, 100% printed board for test, there are three differences between laser hair cap FPC glass fiber board and aluminum base board 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. 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. 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. 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 do not dissipate heat as well as LED fluorescent tubes with aluminum-based panels. Dirt on the panel. Holes and aluminum edge burrs, wire serrations, scratches on any insulating layer can cause hV test fire. Electric leakage. Breakdown. The pressure test board is layered. Blister, all rejected.