these devices must acquire higher clamp voltages and switching frequencies, with the accompanying heat dissipation capability. Here, we consider the influence of different cooling PCB pads on IGBT thermal performance under different working conditions.
PCB multilayer board covered with copper laminate material. When quality problems occur in the actual manufacturing process, PCB laminate is the test item that must be carried out to cause the problems in the production process.
We more or less will encounter difficulties, difficulties are not terrible, the way is always more than difficult
Testing PCB board should pay attention to insulation performance, working principle, test instrument internal resistance, power integrated circuit heat dissipation, welding quality, do not easily determine the damage of integrated circuit and other proble
The copper wire of PCB circuit board falls off (also often said to throw copper) is bad, PCB factory is said to be the problem of laminate, requiring its production factory to bear bad losses.First, PCB circuit board factory process factors:1, copper foil
pcb board quick proofing is generally charged according to the information provided by customers and process requirements. For example: the number of boards, process requirements, ink color, board thickness, difficulty, expediting time and so on, a compre
PCB geographical proofing refers to the trial production of printed circuit boards before mass production of boards. After the engineer finishes the design, the PCB file is sent to the circuit board manufacturer for processing into PCB boards. For some pr
he PCB hole is mainly composed of the hole, the bright plate area around the hole, and a part of the power layer isolation area. In high speed PCB design, it is often necessary to use multi-layer PCB, and the hole is multi-original.An important factor in
A typical manufacturer can only request it twice per production cycle, and only check it once every few months. IR testing in simulated batches also prevents more spills of defective products, which are a prerequisite for quality PCB factories. In additio
Avionics and PCB board development requires special consideration and timely action to ensure that your design and manufacture meet aerospace industry standards.
In short, electronic screen printing technology refers to the combination of electronic information technology and screen printing technology formed a new modern screen printing technology with the characteristics of electronic information technology.
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.
Telegram
