The basic principle of PCB laser marking is that a high-energy continuous laser beam is generated by a laser generator. The focused laser acts on the printing material, which instantly melts or even vaporizes the surface material. By controlling the path of the laser on the surface of the material, The required graphic marks are … Continued
Understanding the PCB manufacturing method and process, mastering the basic PCB manufacturing process capabilities, it is the basis for PCB design. In this article, we will briefly introudce the manufacturing methods and processes and basic process capabilities of traditional rigid multilayer PCBs and high-density interconnect PCBs. Rigid multilayer PCB is the PCB used in … Continued
Many our clients have some questions about the relationship between copper foil,line width and electricity when they deisgn the PCB ,so we have calculated it ,hope it can help you
Advantages: 1. It has high temperature resistance, high strength of tensile, good chemical resistance and no residual glue. At the same time, it conforms to ROHS environmental protection halogen free. 2.It is suitable for PCB wave soldering shielding, protecting gold finger and high-grade electrical insulation, motor insulation, and lithium battery positive and negative … Continued
There are 11 steps to the pcb layout manner & work float which we cover in the pcb design guide. Step 1: finalize your circuit design – everything starts with the circuit layout. without a circuit there may be no need for a pcb. within the antique days maximum circuits were hand drawn and later … Continued
Please refer to below picture,we take advantage of three-dimensional graph to show PCB internal construture of various layup. Multilayer Circuit Boards were gernerally sorted out into few kinds ,there are through hole boards,1 rank HDI,2rank HDI as well as 2rank overlap hole plate. The normal through-hole boards There is one through-hole from the top side to … Continued
How can we identity the number of PCB layers ? The first isvisual inspection, a most intuitive way, just using our eye to check the quantity of insulation between the layers which is using to ensure that there will be no shorrrt circuit issue between different PCB layers , that we can consult the layer … Continued
Recently, SiChuan province river basin water the pollution prevention and control of special law enforcement inspection continues,under 30℃high temperature with the scorching sun,walking in the footsteps of did not stop continue ahead step.at 2:30pm in the afternoon .DeYang and SuiNing inspection teams adopted the “four do not and two straight ”way of without giving notice.without … Continued
I believe you are familiar with PCB surface treatment technology .But what are the advantages and disadvantages of these processs compared with each other ? Bare copper: Advantages:low cost,smooth furface ,good weldability (before oxidation) Disadvantages:easy to be affected by acid and humidity ,and couldn’t keep for a long time,after opening the seal ,it needs to … Continued
As we know , it is easy to occur the bending for pcb in reflow oven, so let us see how to prevent this situation ? From our engineer suggestion , i summarize the following points for your reference . 1. To reduce the effect to temperature on PCB stress . 2. To … Continued
Electronic circuit design and schematic diagram creation.The schematic diagram cleary shoes how the value of knowledge evolved in china in the past 50 years. Come and design your own PCB! If you really want design your pcb,there are some comment: choose a computer assistant design safe to use in PCB design. Reference other people … Continued