Materials required for pcba processing: gerber file, bom, list of materials, list of components as clear and detailed as possible, including the brand, specification, size, quantity, type, etc. If there is no specific brand requirements, and we need to purchase on behalf of our company, our company will choose a trusted brand manufacturer according to the parameter requirements and budget.

The customer may supply some components and is responsible for the warranty of the supplied components.

PCBA problems caused by improper installation of our company or the failure of components purchased by our company will be replaced free of charge.

1.Store components against moisture 2.Use reputable brands of solder paste 3.Adjust printing parameters 4.Adjust the reflow temperature curve 5.Try to use reflow welding, reduce manual welding 6.Avoid too high or too low a temperature of the soldering iron

In the process of PCBA processing, solder paste and flux will produce residual substances, residues contain organic acids and decomposable electric ions, of which organic acids have a corrosive effect, electric ion residues in the pad will cause short circuit, and these residues on the PCBA board is relatively dirty, and does not meet the customer's requirements for product cleanliness. At the same time, it will also affect the stability of the PCBA board, so it is necessary to clean the PCBA board.

Some welding defects are easy to occur when PCBA plate is over-wave soldering, in which air welding is a common welding defect. The problem of air welding will increase the repair amount of PCBA board and affect the welding quality of PCBA, so timely control is needed. The reasons for PCBA air welding are: (1) PCB hole wall is not good, good weldability (2) PCB is damp (3) Components are damp (4) Too fast furnace speed (5) The component pin is too long (6) Insufficient flux activity There are many reasons for air welding of PCBA board, which need to be investigated according to the specific situation of the site.

Board itself consists of four key components: Substrate - The base of the PCB, the substrate is usually made of glass fiber or some other non-conductive material. The base can be single or multiple layers. Copper - Used to transmit current, copper in the PCB replaces the wire. Solder resistance - The metal used to create a connection between the PCB surface and the electronic components. The solder shield protects the underlying electronic wiring from adverse conditions. Wire mesh - Layers of connecting lines used to mark electronic components, warnings, and other characteristic devices. Before entering final PCB production, the prototype must be verified to ensure that all components are connected and working properly to power the device.

There are many reasons to choose one, such as a specific color for the PCB substrate - whether it's a brand trademark, or if the system is pre-produced for one color and the board can be produced for another color. Also, certain colors are easier to see contrast than with the naked eye, which can be an advantage when examining a circuit board. However, if lighting is to be used, choosing the white surface of the PCB can help reflect the light. In some cases, this additional control provides more LED options to optimize the design. Depending on the application, sometimes reflected light may be required. In these applications, white PCBS are ideal. White PCBS are usually used in LED light engines or LED lighting systems. On the other hand, there may be applications that do not want light to reflect, such as DJ equipment used in dark nightclubs. The color of the substrate is only one of the factors to be considered during the schematic phase of PCB design.