New design PCB board find fault method to share
New design PCB board to find the fault method: 1. Voltage measurement method, 2. Signal injection method, 3. See, hear, smell, touch
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3 step to realize PCB failure process analysis
As the carrier of various components and the hub of circuit signal transmission, PCB has become the most important and key part of electronic information products. Its quality and reliability determine the quality and reliability of the whole equipment.
EMC problem What are the factors in PCB design?
Factors related to EMC issues in PCB design: 1. System design: 2. Structural impact: 3. Cable influence: 4. Component selection: 5. Related to SI/PI simulation: 6. Grounding, 7.PCB design relationship, 8. Software anti-jamming technology: 9. Shielding: 10
More and more environmentally friendly PCB substrates
Environmental protection products in addition to not toxic, but also require the product can be recycled after waste.
Multilayer soft PCB classification
The simplest multilayer soft PCB is a three-layer soft PCB formed by two layers of copper shielding on both sides of a single-sided PCB. This three-layer soft PCB is electrically equivalent to a coaxial wire or a shielded wire.
PCB high speed signal circuit design specification skills
A perfect PCB board not only needs to do the component selection and setting is reasonable, but also needs to have good signal conduction performance.
Eight common technical problems of PCB design
What samples should be provided for PCB circuit board proofing? The quotation information needs to be provided to the manufacturer, and the GEBER file is generally provided for the drawings. There are clear process requirements and quantity. The pcb manuf
There are three requirements for PCBA processing
PCBA processing needs to do three requirements: first, the solder paste, must be stored in 5-10 degrees of environment. In order not to affect the use of solder paste, shall not be placed in the environment below zero, second, in the process of SMT proces
Six kinds of PCB detection technology and its advantages and disadvantages
Optical Inspection and Electrical Inspection include PCB manual Inspection, PCB online inspection, PCB functional inspection, PCB active optical inspection, PCB Automatic X-ray inspection and PCB laser inspection. A total of 6 detection techniques.
Detail the basic process of PCB design
The basic PCB design process is as follows: preliminary preparation →PCB structure design → mesh guide → rule setting →PCB layout → Wiring → routing optimization and silk screen → network and DRC inspection and structure inspection → output light drawing
The cause of PCB board burst and its solution
Board explosion caused by water absorption accounted for 70% of the defects, other reasons such as PCB structure uneven growth and contraction, cold and heat imbalance, process injury and bad blackening.
PCB DIP plug-in processing notes
In PCB proofing, the copper foil part is pre-coated with a layer of lead tin anticorrosive layer, which remains in the outer layer of the board, that is, the graphic part of the circuit, and then the rest of the copper foil is chemically etched, known as
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Just upload Gerber files, BOM files and design files, and the KINGFORD team will provide a complete quotation within 24h.