assemble pcb

Currently, safety regulations regarding the use and design of electronic devices have made galvanic isolators a necessity in almost all data acquisition and transmission systems. One way to protect the low-voltage circuits of the control system from the potential high voltage damage of sensor and actuator components in the electric field is to use digital…

With the rapid development of electronic information technology, current semiconductor devices are increasingly miniaturized, high-density and multifunctional. In particular, applications such as fashionable consumer electronics and portable products that have strict requirements on the motherboard area are easily affected by electrostatic discharge (ESD). The selection of circuit protection components is determined by the wiring conditions…

When we get a product, we often don’t have a circuit diagram. So, in this case, how can we clearly explain the principle and working conditions of the circuit board? This is to restore the physical object to the circuit schematic diagram. When encountering some small physical objects, or when there is a need, when…

With the continuous development of electronic technology, the frequency of signals in high-speed circuits has become higher, the edges have become steeper, the size of circuit boards has become smaller, and the density of wiring has become larger. These factors have made the signal integrity problem more and more prominent in the design of high-speed…

This article describes a systematic approach to writing a PCB design rule checker (DRC). Once you have a PCB design from a schematic generation tool, you can run the DRC to find any design rule violations. This must be done before further processing begins, and the developer of the schematic generation tool must provide a…

Advanced processes and design techniques also present daunting challenges when designing chips to meet often inconsistent specifications. Power consumption has become the dominant factor limiting performance in nanometer-scale designs. The materials and structures used in nanometer processes are prone to increasing leakage power and reducing thermal conduction. The net result of all these effects is…

In the PCB copying industry, the cost of drilling holes in PCB boards is usually 30% to 40% of the cost of PCB board manufacturing, and vias are one of the important components of multilayer PCBs. In short, every hole on a PCB can be called a via. Vias appear as discontinuous impedance breakpoints on…

Optoelectronic printed circuit boards use high-speed optical connection technology to replace the copper wire connection currently used in computers, using photons instead of electrons as the medium to transmit data between circuit boards, chips and even various parts of chips. At the same time, traditional low-efficiency electrical signals can also be transmitted. Its basic working…