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Do you understand the two rules of PCB laminated design?
In general, there are two main rules for laminated design: 1. Each routing layer must have an adjacent reference layer (power supply or formation); 2.The adjacent main power layer and the ground should be kept at a minimum distance to provide a large coupling capacitance; The following is an exa...Read more -
[Dry goods] SMT patch slices of tin paste classification in processing, how much do you know? (2023 Essence), you deserve it!
Many kinds of production raw materials are used in SMT patch processing. The tinnote is the more important one. The quality of the tin paste will directly affect the welding quality of the SMT patch processing. Choose different types of tinnuts. Let me briefly introduce the common tin paste class...Read more -
[Dry goods] Why should I use red glue for deep analysis of SMT patch? (2023 Essence), you deserve it!
SMT adhesive, also known as SMT adhesive, SMT red adhesive, is usually a red (also yellow or white) paste evenly distributed with hardener, pigment, solvent and other adhesives, mainly used to fix components on the printing board, generally distributed by dispensing or steel screen printing meth...Read more -
Quality testing of electronic products Reliability screening of semiconductor devices
With the development of electronic technology, the application number of electronic components in equipment is increasing gradually, and the reliability of electronic components is also put forward higher and higher requirements. Electronic components are the basis of electronic equipment and the...Read more -
[Dry goods] In -depth analysis of the quality management in SMT patch processing (2023 essence), you are worth having!
1. SMT Patch Processing Factory formulates quality goals The SMT patch requires the printed circuit board through printing welded paste and sticker components, and finally the qualification rate of the surface assembly board out of the re -welding furnace reaches or close to 100 %. Zero -defectiv...Read more -
How are chips made? Process process step description
From the development history of chip, the development direction of chip is high speed, high frequency, low power consumption. Chip manufacturing process mainly includes chip design, chip manufacturing, packaging manufacturing, cost testing and other links, among which the chip manufacturing proce...Read more -
The assembly design of the PCBA Silk Print number and polar symbol
There are many characters on the PCB board, so what are the very important functions in the later period? Common characters: "R" represents resistance, "C" represents capacitors, "RV" represents adjustable resistance, "L" represents inductance, "Q" represents a triode, "...Read more -
How to set the correct shielding for the PCB layer
Correctly shielding method In product development, from the perspective of cost, progress, quality and performance, it is usually best to carefully consider and implement the correct design in the project development cycle a...Read more -
![[Dry goods set] Importance of PCBA edge device layout](https://cdn.globalso.com/bestpcbamanufacturer/news12.jpg)
[Dry goods set] Importance of PCBA edge device layout
The reasonable layout of electronic components on PCB board is a very important link to reduce welding defects! Components should avoid areas with very large deflection values and high internal stress areas as far as possible, and the layout should be as symmetrical as p...Read more -
Detailed explanation of PCB pad design problem
Basic principles of PCB pad design According to the analysis of solder joint structure of various components, in order to meet the reliability requirements of solder joints, PCB pad design should master the following key elements: 1, symmetry: both ends of the...Read more
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