High-frequency PCB and high-speed signal transmission lines should avoid routing at 90 degree corners, which is strongly required in various PCB Design Guides.Because the high-frequency and high-speed signal transmission line needs to keep the characteristic impedance consistent, and the 90 degree corner routing is used, the line width will change
Solder defects often delay new product launches,What factors will affect the poor soldering of the circuit board?
Solderability of circuit board holes affects soldering quality,The poor solderability of the circuit board holes in the PCB factory will cause virtual welding defects, which will affect the parameters of the components in the
Why PCB Thermal management is important?
For electronic devices, a certain amount of heat will be generated during operation, so that the internal temperature of the device will rise rapidly. If the heat is not dissipated in time, the device will continue to heat up, and the device will fail due to overheating. performance
The factors that cause the welding defects of flexible circuit boards have the following three reasons：
The solderability of the flexible circuit board holes affects the soldering quality
The poor solderability of the holes of the flexible circuit board will cause virtual welding defects, which will affect the parameters of the components
How to choose how many layers of boards are used for design and how to stack them, Today we are going to talk about this topic.
The following are some common stacked structures, let's analyze them：
PCB Layer stackup of single-sided and double-sided boards
For two-layer boards, there is no stacking problem due to
When the PCB design is completed, the laminate layer is determined, and the PCB board has been put into fabrication, the simulation evaluation found that the high-speed signal channel margin may be unsafe. Is there still a chance to improve?
Let's first introduce the loss classification of PCB. There are three
Do you know how PCB circuit boards are tested?
In general, all circuit boards should be 100% open for short circuit test before shipment. Automatic detection of circuit board is not only basic, but also necessary. What are the common test methods in complex circuit board testing?
Needle bed test method
The open circuit and
Do you know the advantages of PCB pouring copper on the surface of the PCB? In the whole process of PCB design, engineers want to ignore the link of pouring copper on the bottom of the PCB in order to save time. Is this right? Is it necessary for the PCB to pouring copper on the bottom of
If you do not pay attention to the ground layer during PCB design, the circuit board may not achieve the expected performance and may suffer from various forms of electrical noise and interference. Let's take a look at what is a PCB ground plane and some tips on how to
PCB raw materials will continue to increase in price in 2021
PCB raw materials include copper foil, fiberglass, resin and other related materials have been reported of price adjustments in Q1 of 2021.Recently, from CCL factory to PCB factory, we have received notices about product price increase.Even PCB industry has fired the first shot,
