PCB board loss increases! What caused it?
The PCB dielectric loss factor increases, the loss becomes larger and larger, the transmission line length is larger, the loss is larger, the copper foil roughness is larger, the loss is larger.
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
PCB radio frequency circuit four basic characteristics
PCB RF circuit RF interface, small expected signal, large interference signal, interference of adjacent channels four basic characteristics.
Rf circuit PCB design skills
The key of RF circuit PCB design is how to reduce circuit radiation and improve anti-interference ability, but in the actual layout and routing of some problems are in conflict with each other.
How to solve the PCBA welding problem
When PCBA virtual welding occurs, we can solve the PCBA virtual welding from the following points: 1) judging the general fault range according to the fault phenomenon, 2) observing the appearance, focusing on the large components and components with larg
How do you judge the PCB board
How do we judge the quality of PCB board: 1. Distinguish the quality of PCB board by its appearance; 2. From the PCB board itself to judge its quality, 3. How to judge the SMT patch processing quality: 1. A complete, smooth, polished surface; 2. The appro
How to deal with PCBA processing correctly
In the choice of PCBA patch processing manufacturers, electronics factories are very careful, so we should choose from the following points: first, customer experience, second, production qualifications, three, cost, four, service
How to eliminate short circuit fault in PCBA processing
There are six points to evaluate the manufacturability of PCB design:1. DFM review of light board2. Check the consistency between the actual components and the pad3. Generate 3D graphics: heat, whether it is conducive to SMT reflow welding heat absorption
How does PCBA process solder paste printing
Solder paste printing is very important to PCBA in PCBA processing, which directly determines the overall welding effect of PCBA. In the process of PCBA processing, the printing effect of solder paste includes steel mesh, solder paste, printing process, d
Basic knowledge of PCB circuit boards
it is at least attached with a conductive graphic, and cloth holes (such as component holes, fastening holes, metallization holes, etc.), used to replace the chassis of the previous device electronic components, and realize the mutual connection between e
PCBA processing requirements for plug-in hole design and the DIP plug-in processing process of the patch factory
The processing of plug-in components generally adopts wave soldering. Because the wave soldering time is very short, if the jack is connected to more ground/electric layers, the tin penetration will be poor, resulting in poor welding.
What do you need to know about PCBA's R&D and proofing?
When delivering the designed PCB file and BOM to the PCBA manufacturer, it needs to be analyzed from multiple perspectives to ensure that there is no delay in the project cycle to reduce the risk of product release.
Why is the price of small batch PCBA proofing expensive
This production line is equipped with solder paste printing machines imported from Sweden, wave soldering, X-RAY, and professional SMT processing technicians.
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