Quick Overview
firmly believes that details create quality. In the consideration of market demand, we provide each with thoughtful and user-friendly design. In addition to the good and elegant appearance, the product also has various functions such as wear-resistance, durability, safety and environmental protection. It is deeply favored by consumers. The manufacturing process for the materials of Altium Design Customized Smart Home Card Door Lock Pcba Control Board includes many steps that determine the precise set of properties for the finished product, such as wrinkle resistance and colorfastness. The product will not release a disturbing odor. The wood materials are specially heat-treated to withstand the high temperatures, producing no unhealthy gases. Insignificant flicker can lead to visual fatigue, eye discomfort, and headaches. However, users can benefit from this product because its LED driver has been improved and it greatly reduces flicker.
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Printed Circuit Boards Assembly (PCBA) Process
Step 1: Solder Paste StencilingThe first step of PCB assembly is applying a solder paste to the board. This process is like screen-printing a shirt, except instead of a mask, a thin, stainless-steel stencil is placed over the PCB. This allows assemblers to apply solder paste only to certain parts of the would-be PCB. These parts are where components will sit in the finished PCB.
Step 2: Pick and PlaceAfter applying the solder paste to the PCB board, the PCBA process moves on to the pick and place machine, a robotic device places surface mount components, or SMDs, on a prepared PCB. SMDs account for most non-connector components on PCBs today. These SMDs are then soldered on to the surface of the board in the next step of PCBA process.
Traditionally, this was a manual process done with a pair of tweezers, in which assemblers had to pick and place components by hand. These days, thankfully, this step is an automated process among PCB manufacturers. This shift occurred largely because machines tend to be more accurate and more consistent than humans. While humans can work quickly, fatigue and eyestrain tends to set in after a few hours working with such small components. Machines work around the clock without such fatigue.
Step 3: Reflow SolderingOnce the solder paste and surface mount components are all in place, they need to remain there. This means the solder paste needs to solidify, adhering components to the board. PCB assembly accomplishes this through a process called "reflow".
After the pick and place process concludes, the PCB board is transferred to a conveyor belt. This conveyor belt moves through a large reflow oven, which is somewhat like a commercial pizza oven. This oven consists of a series of heaters which gradually heat the board to temperatures around 250 degrees Celsius, or 480 degrees Fahrenheit. This is hot enough to melt the solder in the solder paste.
Step 4: Inspection and Quality ControlOnce the surface mount components are soldered in place after the reflow process, which doesn't stand for completion of PCBA and the assembled board needs to be tested for functionality. Often, movement during the reflow process will result in poor connection quality or a complete lack of a connection. Shorts are also a common side effect of this movement, as misplaced components can sometimes connect portions of the circuit that should not connect.
Step 5: Through-Hole Component InsertionDepending on the type of board under PCBA, the board may include a variety of components beyond the usual SMDs. These include plated through-hole components, or PTH components.
Step 6: Final Inspection and Functional TestAfter the soldering step of the PCBA process is finished, a final inspection will test the PCB for its functionality. This inspection is known as a "functional test". The test puts the PCB through its paces, simulating the normal circumstances in which the PCB will operate. Power and simulated signals run through the PCB in this test while testers monitor the PCB's electrical characteristics.
Company Introduction
Located in is a modern enterprise. We are mainly engaged in the production of key brand is always adheres to the service concept of 'quality first, customer first'. We return society with high-quality products and thoughtful services. pays great attention to customers' needs. They are the basis for us to make samples and select the requested materials as well as provide custom services.
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