First, the concept
Circuit board, also known as PCB, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components.
Circuit board sample production refers to the trial production of printed circuit boards before mass production. The main application is the process of small batch trial production to the factory after the electronic engineer completes the circuit board design, which is the production of circuit board samples. The production quantity of circuit board samples generally has no specific boundaries. Generally, engineers call circuit board samples before the product design is confirmed and tested.
The products in the PCB market are constantly changing. Time is a very important factor in this industry. Delivery and quality are the hard strengths of the factory and are the most popular among engineers and factories. Nowadays, the circuit board factory generally provides expedited service, and the fast factory is also required to have a normal delivery period of 2 days. For example, in FASTPCBA in Shenzhen, China, all the samples are expedited, quality control, engineering, production, real-time monitoring and sample progress, and our advantage lies in advanced production equipment: MYDATA-600, no need to open steel mesh, automated production, province Time and effort, precision boutique.
It is the trial production of the engineer before the product design is not completed and tested. The quality cannot be ignored. From raw materials, drawing, to production, testing, quality control, etc., every link needs to be strictly checked. For example, in general, for ordinary double-panel, the sheet material generally has FR-4, aluminum substrate, CEM-1, etc., the thickness of the sheet is from 0.4mm to 3.0m, and the thickness of copper is 0.5oz to 3.0oz. The difference is very large. At present, the better materials used by the manufacturers are imported raw materials.
With the development of the industry, the price of PCB sample production and small and medium batch production is not lower. At present, many sample companies, such as Czech Republic, cancel all the filming fees for proofing/small batches, and the film fee has withdrawn from the historical stage. Completing challenging tasks with challenging prices, this will be the price trend for the next board proofing.
1.Snpb Hot Air Leveling craft. The Snpb Hot Air Leveling craft is a traditional PCB pad coating method. The specific craft process is immersed in the molten Snpb alloy after the PCB circuit is etched, and then slowly lifted and coated with a Snpb alloy layer under the action of hot air, which is ...
The width of the printed conductor depends on the current carrying capacity of the conductor and the allowable temperature rise. The thickness of the copper foil plated copper foil is generally 0.02 to 0.05 mm. The different widths printed conductors have different cross-sectional areas too. The ...
After the position and shape of the components on the PCB board are determined, the wiring can be performed according to the position of the components. The following are the basic requirements for the circuit board: The low frequency wires are placed close to the edge of the printed circuit boar...