Category Archives: Uncategorized

After international manufacturers such as Qualcomm announced the withdrawal of Arm server CPU, only a few domestic chip companies such as Tianjin Feiteng, Huawei and Huaxintong were left to do continuous design and development. Therefore, the fate and prospect of ARM server processor with domestic IC companies as the main force have also attracted the […]

When designing PCB, we consider wiring the most, that is, how to connect each layer with the network signal line in the most reasonable way. The denser the circuit of high-speed PCB, the greater the density of VIA holes, which can play the role of electrical connection between layers. Multi-layer PCB proofing often receives feedback […]

PCB design instruction of haisi chip Through the study of HiSilicon, referring to its chip data, combined with the design experience of HiSilicon-related products, and based on our general PCB design instruction, our company organized senior design engineers to specially sort out the PCB design of HiSilicon-related products and conduct centralized review. Recently, our company’s […]

In the design of pcb, we are pulling wires except the layout, so there are some awkward requirements for the outgoing line. It’s not just a random one. Let’s learn with Xiaobian! 1. In order to meet the production process capability requirements of domestic PCB factories, the conventional wiring line width is ≥4mil(0.1016mm) (3.5mil, i.e. […]

If there is a lack of effective communication between PCB designers in the project, several different versions of PCB design data may be generated, and numerous repetitive designs among team members may also occur. If different versions of design data can’t share a unified standard and format, it will inevitably cause communication barriers and management […]

Pcb3w design principle In PCB design, in order to reduce the crosstalk between lines, the line spacing should be large enough. When the line center spacing is not less than 3 times the line width, most electric fields can be kept from interfering with each other, which is the 3W rule. The 3W principle means […]

When designing PCB pads in PCB design, it is necessary to design them in strict accordance with relevant requirements and standards. Because the design of PCB pads is very important in SMT chip processing, which will directly affect the solderability, stability and heat transfer of components and the quality of chip processing, what is the […]

1) in 1)PCB design, the small power supply is firstly paved with copper on the signal layer, and then connected by the current-carrying wiring; 2) PCB design 12V and 5V power supply, if it is the input power supply of switching power supply, should be disposed of in the signal layer (surface layer and inner […]

The lamination arrangement of PCB factory is the basis of PCB design of the whole system. If the laminate design is defective, it will eventually affect the EMC performance of the whole machine. Generally speaking, there are two main rules for laminated design: 1. Each wiring layer must have an adjacent reference layer (power supply […]

The circuit board dispensing machine is used for dispensing the circuit board, which is mainly used for waterproofing, dustproof and anticorrosion. Nowadays, many enterprises have put forward higher requirements for the usability and stability of electronic products, and dispensing processing of circuit boards has become an indispensable process. Long-term and effective protection of some sensitive […]