The main reasons for solder joint failure in PCBA processing are as follows: 1, component pin is bad: 2, PCB solder pad is bad: 3, solder quality defects: 4, solder quality defects: 5, process parameter control defects: 6, other auxiliary materials defect
Methods for rapid maintenance of faults after PCBA processing: one, visual inspection method, two, resistance method, three, voltage method, four, waveform method, five, current method, six, component replacement method, seven, step by step investigation
When the solder paste reaches the melting temperature, under the action of balanced surface tension, there will be a self-positioning effect, that is, when there is a small deviation from the component placement position, under the action of surface tensi
pcba electronic products processing process: one, customer data file, two, document review, three, technical preparation, four, material purchase and arrival, five, material inspection and machine, six, start production, seven, test and delivery
What is PCB design: PCB design is based on the schematic diagram of the circuit to achieve the function required by the circuit designer. PCB design mainly refers to layout design, which needs to consider the layout of external connections. Optimized layo
What is PCB, SMT, PCBA: 1, PCB is used to support electronic components, and provide lines, so that electronic components can form a complete circuit, 2, SMT is a popular technology, also known as surface mounting technology, 3, PCBA refers to the purchas
Why do PCBA circuit board inspection: PCBA inspection is a link in the whole production process of PCBA processing, is an important means to control product quality
PCB design differential wiring operation skills: 1, activate the wiring instruction, 2, support single line Mode, 3, in the layout of small space position differential wiring, can switch to the Neck Mode, 4, according to the wiring needs to select the app
PCB copy board use: The purpose of PCB copy board is to learn the latest foreign electronic circuit design technology, and then absorb the excellent design scheme, and then used to develop and design more excellent products
Copper coating on PCB board, if the grounding problem is handled well, is certainly "more advantages than disadvantages", it can reduce the signal line backflow area, reduce the signal external electromagnetic interference
The temperature of PCB board is related to the temperature of its raw materials, solder paste and surface parts. Usually, the highest temperature resistance of PCB board is 300 degrees, 5-10 seconds; Over lead-free wave soldering temperature is about 260,
High frequency PCB design layout points to note: (1) With high integration and high density PCB design and wiring, (2) the lead bending between the pins of the high-speed circuit device should be less, (3) the lead between the pins of the high-frequency c
Telegram