PCB Blogger-China PCB Factory,HOYOGO

        Aluminum PCB   is a metal substrate with good heat dissipation function. Generally, the single-sided aluminum PCB is composed of three layers, which are the circuit layer, the insulating layer and the metal base layer. It is usually used in power products, especially in the LED field. So, what are the advantages of aluminum PCB ?   1. As we all know,  high temperature will affect electronic equipment ,  so it is necessary to choose a circuit board with good heat dissipation, and the aluminum  PCB  can effectively deal with heat dissipation, reduce the operating temperature of the module, and improve reliability.  Reduce the assembly area of radiators and other hardware, reduce product volume, and reduce hardware and assembly costs.     2. The aluminum PCB meets environmental requirements, is recyclable, helps save energy, and is easy to assemble.     3. Aluminum PCB, copper PCB, and iron PCB, all belong to metal substrates Comparison of the three: Aluminum PCB are much lighter

        FPC is the abbreviation of Flexible Printed Circuit, which is widely popular for its lightness, thinness and flexibility and other characteristi cs.   It uses various materials are used in the production process.   The materials that make up the flexible PCB include insulating base material, adhesiv e, metal conductor layer (copper foil) and covering layer.  The difference in materials also determines the performance of FPC. Next, I will introduce you to these materials.   1. Insulating Base Material Insulating base material is a flexible insulating film. As an insulating carrier for circuit boards, it is required to have good mechanical and electrical properties. Nowadays, polyimide (PI) film and polyester (PET) film are commonly used in FPC. Generally, the film thickness is selected within the range of 0.0127~0.127 (0.5mil~5mil). 2.  A dhesive The adhesive acts as a bond between the film base material and the metal foil, or the film base material and the cover film.  FPC can

       In the PCB manufacturing process, the lamination technology is the most important step. Some quality defects may occur during this process,  which will affect the quality of the final PCB product.  So what causes the defects? How do we solve these defects? 1.  After the lamination of multi-layer boards is completed,  if  chronic misalignment occurs,  it is  not in the   board   material  parts of the inner layer boards. Reason 1: The positioning pin is too short and the position is inaccurate. Solution: Use longer plugs instead.     Reason 2:  The small size of the positioning pin causes looseness with the positioning hole of the base material. Solution: ①Replace with ne w pin s. ②Trim the problematic positioning pin.     Reason 3:  Regarding the position of the tooling hole, the circular shape of the inner film has been aliased. Solution: ① First put the inner films together, then check their upper and lower alignment, and replace the misaligned inner films. ② Strengthen on-the

       Electroplating is a necessary production process in PCB production, in which horizontal plating is more functional than vertical plating, and it is easier to achieve large-scale production. So what are the advantages of horizontal plating?   1. Horizontal plating does not need to reserve a clamping position, which increases the practical area and greatly saves the loss of raw materials.     2. It can adapt to a wide range of sizes without manual installation and hanging, realize fully automatic operation, and ensure that there is no damage to the surface of the PCB board during processing, which is extremely beneficial for mass production.     3. Horizontal plating is computer controlled throughout the process to ensure uniformity of surface and hole coating on each printed circuit board under the same conditions.     4. The cleaning of the plating tank to the addition and replacement of the plating solution can be fully automated without human error, and labor costs can be redu

       Due to the miniaturization and lightweight of electronic products, the transformation of electronic components from plug-in components to chip components has been promoted,  there are still some plug-in components that are restricted by various factors and cannot be converted into SMD components, so mixed circuit boards will always exist.   Regarding the welding of mixed circuit boards, whether it is wave soldering or manual soldering, there is a problem of low efficiency, so it is particularly important to choose and use appropriate wave soldering fixtures.     What is Wave Soldering  Fixture Wave soldering fixture is refer to a tool used to pass through the solder furnace during the wave soldering process. It is a fixture used to carry the PCB board through the solder furnace and complete the welding operation.     Typical  A pplication  S cenarios for  U sing  Fi xtures 1)  When in the double-sided mixed assembly process, there are  component   on the back of the PCB and it i