1. EMC can shield large areas of ground or power supply copper, and some special areas, such as PGND, play a protective role. 2. PCB process requirements. Generally, in order to ensure the electroplating effect or the lamination does not deformPCB boardLayer copper. 3. Signal integrity requirements: provide a complet……

PCB multilayer boardThe big difference between single side and double side boards is the addition of an internal power layer and a ground plane. The power supply and ground network are mainly routed on the power layer.PCB multilayer boardOn both sides of each substrate layer, there are conductive metals, and the boards……

PCB multilayer board refers to the multilayer circuit board used in electrical products. The multilayer board uses more single panel or double panel wiring boards. A printed circuit board with one double-sided as the inner layer, two single-sided as the outer layer, or two double-sided as the inner layer, and two singl……

The new AMD Reelon 7000 processor is coming. Many players are worried about whether there will be a shortage of supply after the release of the Reelon 5000 processor that year. However, at the press conference at the end of August, AMD CEO Su Zifeng emphasized that AMD had significantly increased its production capacit……

At present, the advanced lithography machine that has been put into mass production in China is the 90nm lithography machine. Although the 28nm lithography machine has achieved a technological breakthrough, it is still in the testing stage. Because the yield is relatively low, it has not been put into mass production.

Pcb fast proofingAs the name implies, it is to quickly produce the pcb template within the time required by the customer, and the customer only needs to send the proofing data toPCB manufacturerThe factory can make the sample in about 8 hours from data processing to shipment (the speed of plate making is generally for ……