Quick Overview
Custom Electronics Printed Pcb Circuit Boards Hdi Double-sided Multilayer Pcb Pcba Gerber Service Assembly Manufacturer is a high-quality product with long service life. It is lightweight and is easy to install. It can be applied widely. The principle of unity in fashion design is applied well on Custom Electronics Printed Pcb Circuit Boards Hdi Double-sided Multilayer Pcb Pcba Gerber Service Assembly Manufacturer. It endows the product with design elements in a unique and harmonious way. With sturdy and strong components built in it, this product is able to withstand many rigorous conditions, featuring extremely durable. Custom Electronics Printed Pcb Circuit Boards Hdi Double-sided Multilayer Pcb Pcba Gerber Service Assembly Manufacturer is commonly used in the automotive, shipbuilding, military, electronics, machinery, valves and other industries. Our customer said once their clients come into their gift shops, he is always asked how did he make it and all of them want to buy one.
* PCB Manufacturers including fabrication, assembly and prototyping
* PCB Assemblers and related services
* Manufacturer of laser cut metal stencils and SMD stencils
* Electronic Components Manufacturers & Distributors
* Electronic Components store
* Instrument Manufacturers & Distributors
* Display Manufacturers & Distributors
* Mechanical Parts Suppliers
* Enclosure Manufacturers
* Tools, Soldering and Production equipment, Consumables suppliers, PCB making equipment
* For over 12 years PCB Assembly has been delivering superior quality and on-time delivery to its customers.
* We will handle your order with the greatest care and responsibility.Give us a try,you will be happy you did!
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
With the focus on is a comprehensive enterprise integrating R&D, production, sales and brand building. The main products are pharmaceuticals are developed based on the brand concept which is to make medicine with conscience and to benefit people by good medicine. is willing to provide intimate services for consumers based on quality, flexible and adaptable service mode. With a focus on customers, can develop and produce quality machinery and provide efficient and professional custom services, according to customers' actual needs.
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