Category Archives: Uncategorized

Today, with the rapid development of science and technology, various high-tech electronic products emerge in endlessly, which makes circuit board manufacturers more and more strict on the quality of plates. So, what quality problems are most likely to occur in the PCB production process of PCB factory? 1. The dimension of substrate changes due to […]

The package of parts can be specified when designing the circuit diagram or when introducing the network list. When designing the circuit diagram, you can specify it in the Footprint setting item in the part properties dialog box, or you can specify the part package when importing the netlist. Question 1: What is part packaging […]

In the ordinary PCB design, we will encounter various problems of safe spacing, such as the spacing between vias and pads, the spacing between traces, and so on, which should be considered. So today, we will divide these spacing requirements into two categories, one is: electrical safety spacing; The other type is: non-electrical safety distance. […]

Characteristic impedance of PCB: also known as “characteristic impedance”, it is not a DC resistance, and belongs to the concept of long-line transmission. In the high frequency range, in the process of signal transmission, an instantaneous current will be generated between the signal line and the reference plane (power supply or ground plane) due to […]

Nowadays, with the rapid update of electronic products, the printing of PCB has expanded from single-layer board to double-layer board and multi-layer board with more complicated requirements for high precision. Therefore, there are more and more processing requirements for PCB holes, for example, the hole diameter is getting smaller and smaller, and the distance between […]

High-precision PCB refers to the adoption of technologies such as fine line width/spacing, tiny holes, narrow ring width (or no ring width) and buried and blind holes to achieve high density. And high precision means that the result of “thin, small, narrow and thin” will inevitably bring high precision requirements. Take the line width as […]

With the progress of society and the development of science and technology, new electronic products are constantly emerging, which makes the application field and market of printed circuit board (PCB) products constantly expanding, and at the same time, the demand for electronic information processing of all kinds of products is gradually increasing. When the demand […]

In PCB circuit design, there will be times when IC needs to be replaced. Here’s to share the skills of IC replacement, so as to help designers to be more perfect in PCB circuit design. Direct substitution Direct replacement refers to the direct replacement of the original IC with other IC without any change, which […]

Digital system designers may be familiar with some RF components and wiring styles, but there is more to RF circuit design. RF circuits can include integrated circuits, discrete semiconductors, and printed RF components, which work together to produce desired functions. RF circuit design involves combining all these elements to build the whole system and create […]

Printed circuit board (PCB) wiring plays a key role in high-speed circuits, but it is often one of the last steps in the circuit design process. There are many problems in high-speed PCB wiring, and many literatures have been written on this topic. This paper mainly discusses the wiring problem of high-speed circuits from a […]