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With a focus on product quality excellence, adopts exquisite weaving technology and eco-friendly printing and dyeing technique. All this ensures that are natural, pure, safe and reliable. Besides, they feature good breathability, absorption and wear resistance. They are comfortable and eco-friendly. Hdi Customized Prototype Gerber Medical Pcba Manufacture has been tested for many times. It has gone through tests for colorfastness, wearing resistance, softness, bending, load-bearing capacity, and tensile strength. The product features enough durability. Its components such as padding, eyelets, upper surface are firmly sewn or glued together to be used for a long time. The product quality of has been universally recognized.
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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 Advantages
Being a comprehensive enterprise in integrates R&D, production and sales and mainly produces is committed to becoming a first-class enterprise with industry influence. In the future, it will be our pleasure to contribute to a better life and harmonious society. has a group of professional production and processing personnel to continuously improve the production and processing capabilities of In the early stage, we conduct a communication survey to gain an in-depth understanding of the customer's problems. Therefore, we can develop solutions that best suit the customers based on the results of the communication survey.
are safe and practical with stable performance. If you need it, please call us. We are looking forward to cooperating with you.
