The bubbling of the circuit board is actually the problem of poor binding force of the board, that is, the surface quality of the board, which includes the cleanliness of the board and the surface microscopic roughness (or surface energy).
the trend of automobile electrification and electronization is more and more obvious. As the infrastructure of electronic products, PCB manufacturing is becoming increasingly important in the automotive supply chain
Special attention needs to be paid to the selection of materials to ensure stability in terms of temperature, humidity and bias in addition to electrical properties. This will lead to future restrictions on material selection and design rules.
In PCB electroplating, the chemical analysis of organic compounds and metal additives is more and more complex, and the chemical reaction process is more and more accurate.
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.
Perforation is one of the important components of multilayer PCB board, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB board. Simply put, every hole in the PCB can be called a pass hole.
there are many factories on the market can do four-layer board, but not every factory can do a good job of four-layer board, the following Xiaobian to recommend several, in addition to the following few, of course, there are many factories are good, but t
On the printed circuit board, the electrical connection of all components is carried out through the pad. Pad is the most important basic unit in PCB design.
Different production processes result in different costs. Such as gold-plated plate and spray tin plate, the production of shape gong (milling) plate and beer (punching) plate, the use of silk screen line and dry film line will form different costs, leadi
In the mass production factory, there is no way for you to use an electric meter to slowly measure the correct Circuit of every resistor, capacitor, inductance and even IC on each board. Therefore, the so-called ICT(in-circuit-test) automatic Test machine
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 main purpose of pcb single-layer board proofing is to test the performance of the circuit board. If it is not perfect in some aspects, it can be modified and improved. Therefore, the user should choose a circuit board proofing manufacturers with short
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