The trial-production process of six types of modules generally carried out by domestic counterparts is mainly after determining the main circuit, designing the compensation circuit, carrying out a large number of scheme design and sample production.
The copper roots narrow the line spacing, resulting in the printed board does not meet the requirements of Party A, and may even be rejected. Because the rejection will make the production cost of PCB greatly increased.
Laser marking can be a variety of characters, symbols and patterns, character size can be from millimeter to micron magnitude, which has a special significance for the anti-counterfeiting products.
The formation of residual film slagging indicates that the previous film removal process is not thorough. Poor film removal is often the result of the combination of edge film and electroplating.
The more links there are, the more likely there will be problems. This can be regarded as a very special aspect of the printed circuit production process.
With the expansion of 5G commercial pace, the upgrading of consumer electronic products and the emergence of new applications, the further growth of Internet traffic, and the increasing demand for switches and servers driven by the construction of data ce
With the expansion of 5G commercial pace, the upgrading of consumer electronic products and the emergence of new applications, the further growth of Internet traffic, and the increasing demand for switches and servers driven by the construction of data ce
The shortest and widest printed line permitted by the assembly process shall be used. For high frequency devices, the printed line of the power supply is equivalent to a small inductance, which will worsen the power supply noise and cause undesired coupli
Avoid running digital clock lines and high frequency analog signal lines near the power layer; otherwise, the noise from the power signal will be coupled to the sensitive analog signal.
PCB customization, BOM, material selection and other electronic industry supply chain solutions, one-stop to meet the comprehensive needs of small and medium-sized customers in the electronics industry.
Some customers have designed contour lines for Keep layer, Board layer, Top over layer and so on, and these contour lines do not coincide, which makes it difficult for PCB manufacturers to judge which contour line shall prevail.
Correct PCB pad design, if there is a small amount of skew during patch processing, can be corrected during reflow welding due to the action of surface tension of the molten solder.
Telegram