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.
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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
Will incorrect design of silk screen position number affect PCBA patch processing?
The silk screen position number does not determine whether the final patch is correct. Many experienced engineers found that deleting the bit number silk screen printing, PCBA product patch back and no problem. Generally, the machine patch locates the dev
Analysis of the three main reasons for PCB copper dumping
Printed circuit board PCB copper wire off bad, PCB factories are said to be laminate problems, requiring its production factory to bear bad losses.
The role of automatic Optical inspection (AOI) technology in PCBA processing
In PCBA manufacturing, automatic optical detection is set at the last step of the SMT production line. After the SMT patch processing is completed, product defect detection is required. Through timely detection and reduction of defects, improve assembly e
Basic knowledge analysis of PCB schematic diagram
Circuit diagram, also known as circuit schematic diagram, is a kind of drawings reflecting the electrical connection of each component of electronic equipment. The circuit diagram consists of some abstract symbols, according to certain rules.
What are the common PCB defects
Modern PCBA electronic assembly is a complex process, in the process of production, due to PCB substrate, PCB board processing process factors lead to PCB defects.
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