In the electronics industry, assembled printed circuit boards are a very important component that carries out the main functions of electronic devices. PCBA has a wide range of applications, involving home appliances, automobiles, communications, medical, and other fields. PCBA refers to a product that fixes electronic components (such as resistors, capacitors, inductors, ICS, etc.) on a PCB (Printed Circuit Board) by soldering or plugging. PCB is the basis of PCBA; it is an insulating substrate used for the electrical connection between electronic components. Through the pre-designed circuit pattern and hole position, the connection between components is simple and convenient.
The characteristics of PCBA mainly include the following aspects:
1. Efficient and reliable: PCBA has efficient and reliable electrical connection performance, which can ensure the stable operation of electronic equipment.
2. Light weight: PCBA adopts light and thin PCB material, which greatly reduces the weight of the whole product.
3. Easy maintenance: The manufacturing process of PCB assembly has a high degree of standardization, easy maintenance, and reduces maintenance costs.
4. Strong customizability: PCB assembly and printing can be customized according to different design requirements to meet the needs of different electronic devices.
PCBA test
PCB assembly testing, the most critical quality control link in the entire PCBA process, needs to strictly follow the PCBA test standards and test the test points of the circuit board according to the customer's test plan. Assembled printed circuit boards testing also includes five main forms: ICT testing, FCT testing, ageing testing, fatigue testing, and testing in harsh environments.
Among them, ICT (In Circuit Test) test mainly includes circuit on/off, voltage and current values, fluctuation curves, amplitude, noise, etc., while FCT (Functional Circuit Test) test requires IC program firing. Simulation test of the function of the entire PCBA board, finding problems in hardware and software, and equipping necessary production fixtures and test frames. Burn In Test The test is mainly to power on the PCBA board and electronic products for a long time, keep them working and observe whether there is any failure, and the electronic products can be sold in batches after ageing test; fatigue test is mainly to sample the PCBA board, carry out high-frequency and long-term operation of the function, and observe whether there is failure, such as continuous mouse clicks up to 100,000 times or on/off LED lights 10,000 times, test the probability of failure, to feedback the working performance of the PCBA board in the electronic products; Severe Conditions is mainly to expose the PCBA board to the limit value of temperature, humidity, drop, splash, and vibration to obtain the test results of random samples to infer the reliability of the entire PCBA board batch products.
SMT chip processing technology
1. According to the customer's file and BOM list, make the process file of SMT production and generate the SMT coordinate file
2. Check whether all production materials are ready, make a complete set of orders, and confirm the PMC plan for production
3. Carry out SMT programming and make the first board for checking to ensure that there is no error
4. According to the SMT process, make the laser steel mesh
5. Carry out solder paste printing to ensure that the printed solder paste is uniform, good thickness and consistent
6. Through the SMT placement machine, the components are placed on the circuit board, and the online AOI automatic optical inspection is carried out if necessary
7. Set the perfect reflow oven temperature curve, let the circuit board flow through the reflow soldering, the solder paste will be converted from paste, liquid to solid, and good soldering can be achieved after cooling
8. After the necessary IPQC inspection,
9. The DIP plug-in process passes the plug-in material through the circuit board and then flows through wave soldering for soldering
10. Necessary post-furnace process, such as foot cutting, post-welding, plate surface cleaning, etc
11.QA conducts a thorough test to ensure that the quality is OK
The value of PCBA
PCBA is the core of modern electronic equipment, and it is widely used, covering almost all electronic products such as mobile phones, computers, home appliances, automotive electronics, medical equipment, industrial control, etc. Understanding and mastering PCBA production technology will be of great help to deeply understand and innovate electronic products. Its value is mainly reflected in:
1. High integration: PCBA integrates the circuits and components in electronic equipment on a circuit board, which greatly improves the integration and miniaturization level of electronic equipment.
2. Strong function: PCBA can realize complex electronic circuits and functions, and is a key technology to realize intelligent electronic equipment.
3. High efficiency: The production and assembly of PCBA can be highly automated, which greatly improves the production efficiency and quality stability of electronic equipment.
Group Profile
The company can provide customers with professional OEM/ODM services. The company's products and technologies are diversified, covering semiconductor devices, pulse motors, high-frequency transformers, inductors and the core components of various electronic products PCBA (Printed Circuit Board Assembly) & FPCA (Flexible Printed Circuit Assembly) and other products.
With R&D as the core driving force, the company completes the one-stop service in the real sense including design, procurement, and manufacturing for customers through its own strong R&D strength, relying on stable and high-quality production and manufacturing capabilities. It builds a complete ecological chain of PCBA, and finally realizes the competitive advantage of the company overall products.
Contact us to determine the demand, design evaluation to determine the program, first to the deposit order, design samples to determine the sample, mass production customer inspection, pay the balance of logistics, and evaluation feedback after-sales service.
Quick quote: Quick quote
Multi-style: hot new constantly updated
Low cost: profit insurance
Quality assurance: Control every step
Quick delivery: online customer service
Q: Are you a manufacturer or a trading company?
A: We are manufacturers.
Q: Can you produce according to our requirements?
A: Yes, OEM is available. We have a professional team that can provide you with any service you want.
Q: Is the product tested before shipment?
A: Yes, of course. All our conveyor belts will be subject to 100% quality control before shipment.
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