PC boards design is an important phase of PCB/PCBA products. While vias are an important knowledge point. Especially for high-speed multilayer PC boards design, the design of vias needs to attract the attention of engineers. Let’s understand the knowledge of vias in PC boards design. Vias are generally divided into three categories: through holes, blind … Continued
Rigid-flexible PCB solve many difficulties that rigid or flexible boards cannot, and many industries widely use them. Telecom, military, medical, auto, AI etc need such boards in high frequency. Rigid-flexible PCB Brief description: The birth and development of FPCB and PCB gave birth to a new product of soft and hard board. Therefore, the rigid-flexible … Continued
Introduction for FPC and Rigid-Flex Boards Modern electronic devices require compact and reliable solutions. FPC and Rigid-Flex Boards meet this need perfectly. These innovative technologies combine flexibility with durability. What makes them special? First, flexible PCB use thin polyimide substrates. They can bend and twist repeatedly without damage. Meanwhile, rigid-flex boards integrate both flexible and … Continued
Printed circuit boards is short for PCB, it is the basis of all electronics componnets. The solder mask opening is an important technology in fabrication. Solder mask layer concept: Solder mask layer refers to the part of the printed circuit boards to be coated with green oil. In fact, this solder mask layer uses a … Continued
PCBA electronics manufacturing shows its power during Epedemic period and potential support to wolrd economy. NEPCON ASIA 2020 (Asia International Electronic Production Equipment and Microelectronics Industry Exhibition) will be held on August 26-28, 2020 at the Shenzhen Convention and Exhibition Center as scheduled. It is expected that 900 exhibiting companies and brands and 65,000 professional … Continued
FPC flexible circuit boards is generally called FPC, which is a kind of printed circuit board (PCB). It is an important electronic device interconnection component of electronic equipment. FPC flexible circuit boards has the incomparable advantages of other types of PCB because it can be bent , Light weight, etc. In recent years, it has … Continued
EMC-ENGINEER Electromagnetic Compatibility Analysis Module, SI-WORKBENCH Signal Conformance Analysis Module, RADIATION-WORKBENCH Radiation Analysis Module. EMC Engineer electromagnetic compatibility analysis module comprehensively and quickly diagnoses your design: EMC Engineer checks the EMC/EMI characteristics of a PCB or system at an early stage of design, and can use this tool for analysis even after the layout phase … Continued
SPECCTRA Quest is a high-speed system board-level design tool provided by CADENCE, which can control the corresponding constraints with PCB layout. The following tools are integrated under the SPECCTRAQuest menu (1) SigXplorer can edit the wiring topology. Delays, characteristic impedances, type and number of drives and loads, topologies, types of termination loads, and more can … Continued
Distributed noise caused by the inherent impedance of the power supply. In high-frequency circuits, power supply noise has a greater impact on high-frequency signals. Therefore, a low-noise power supply is required first. A clean ground is as important as a clean power supply; common mode field interference. It refers to the noise between the power … Continued
According to the different manifestations and causes of power supply noise interference analyzed above, the conditions under which it occurs can be targeted, and the interference of power supply noise can be effectively suppressed. The solutions are: Pay attention to the through holes on the board. The vias require etched openings in the power supply … Continued
Under normal PCB design conditions, the following factors are mainly affected by the PCB manufacturing: The thickness of the dielectric layer is proportional to the impedance value. The dielectric constant is inversely proportional to the impedance value. The thickness of copper foil is inversely proportional to the impedance value. The line width is inversely proportional … Continued
When conducting PCB wiring, it often happens that when the trace passes through a certain area, due to the limited wiring space in this area, a thinner line has to be used. After passing through this area, the line returns to its original width. Changes in trace width cause impedance changes and therefore reflections, affecting … Continued