aluminum pcb
This article explores the intricate processes involved in PCB sub assembly, highlighting best practices for efficient manufacturing. Learn how optimizing these steps can enhance production quality and reduce costs in electronics assembly.
The production of fixtures should select appropriate materials according to the actual situation, which can greatly reduce costs. At the same time, a universal and reusable base can also greatly reduce costs, and standardize the production of fixtures to facilitate production and improve the quality of fixtures. The selection of test needles and related materials…
It would be wonderful if high-speed PCB design could be as simple as connecting schematic nodes and as beautiful as what you see on a computer monitor. However, unless the designer is new to PCB design or is extremely lucky, actual PCB design is usually not as easy as the circuit design they are engaged…
1.Abrasion Resistance In circuit board engineering, it often refers to the wear resistance of solder-proof green paint. The test method is to use a 1 kg soft grinding wheel to rotate and rub 50 times on the IP-B-25 sample board that has been painted green. The comb-shaped circuit area must not be worn out to…
High-precision printed circuits refer to the use of fine line width/spacing, micro-holes, narrow ring width (or no ring width) and buried and blind vias to achieve high density. High precision means “fine, small, narrow, thin”, which will inevitably lead to high precision requirements. Take line width as an example: 0.20mm line width, according to regulations,…
Explore the leading PCB assembly services suppliers that can elevate your project. This article highlights top-rated providers, their offerings, and how they can meet your specific assembly needs efficiently and effectively.
This article explores the latest advancements in printed wiring board assembly techniques, highlighting innovative methods, improved efficiencies, and emerging technologies that enhance production quality and reduce costs in electronics manufacturing.
Design basis of printed circuit boards The circuit design ideas of electronic designers must eventually be implemented in reality, that is, printed circuit boards. The substrate and selection of printed circuit boards, the physical properties of the various elements that make up the circuit, such as vias, slots, wire sizes, pads, surface coatings, etc., are…
1) In the design of low-power RF PCB, standard FR4 materials (good insulation properties, uniform material, dielectric constant ε=4, 10%) are mainly used. 4-layer to 6-layer boards are mainly used. In the case of very cost-sensitive, double-sided boards with a thickness of less than 1mm can be used. It is necessary to ensure that the…
High-precision printed circuits refer to the use of fine line width/spacing, micro-holes, narrow ring width (or no ring width) and buried and blind holes to achieve high density. High precision means “fine, small, narrow, thin”, which will inevitably lead to high precision requirements. Take line width as an example: 0.20mm line width, according to regulations,…
(1) Advantages and disadvantages of the turret structure · Up to 6 nozzles of different sizes are suitable for any placement head on the turret, and there is no need to change the nozzle during work. In other words, any nozzle can pick up components at any time, eliminating excessive and unnecessary operating steps. ·…
In the PCB electronic industry soldering process, more and more manufacturers are beginning to turn their attention to selective soldering. Selective soldering can complete all solder joints at the same time, minimizing production costs, while overcoming the problem of reflow soldering affecting temperature-sensitive components. Selective soldering can also be compatible with future lead-free soldering. These…
1.Introduction Welding is actually a chemical treatment process. Printed circuit boards (PCBs) are the support for circuit components and devices in electronic products, and they provide electrical connections between circuit components and devices. With the rapid development of electronic technology, the density of PCBs is getting higher and higher, and the layers are getting more…
Current density of wiring : Most electronic circuits are now made of copper-bonded insulating boards. The copper thickness of commonly used circuit boards is 35μm. The current density value of the wiring can be taken according to the empirical value of 1A/mm. The specific calculation can be referred to the textbook. In order to ensure…
With the improvement of power semiconductor device performance and the innovation of switching conversion technology, power electronics technology has been widely used in various power supply equipment. At present, switching power supply products are becoming more and more small, high-speed and high-density. This trend has led to increasingly serious electromagnetic compatibility issues. The high-frequency switching…