It has its own high-precision SMT Mounter, silk screen printing machine, and automatic board feeder. It can provide SMT chip printed circuit board assembly services for small package 0201 components. SMT production line is equipped with 5 high-speed chip assembly lines, 5 dip plug-in assembly lines, AOI automatic optical detector, automatic solder paste printing machine, lead-free wave soldering, 8 temperature zone reflow soldering, ICT tester, aging, cleaning tools, etc.
Plate thickness: 0.2-7.0mm
Large copper thickness: 2oz
The large size of the finished product: 650 * 1100mm
Small line width / spacing: 3 / 3mil
Thickness and aperture ratio of large plate: 12:1
Small mechanical drilling hole diameter: 6mil
Distance from hole to conductor: 3.5mil
Impedance tolerance (Ω): ± 5% (< 50) ± 10% (≥ 50)
Surface treatment process: lead-free tin spraying, OSP, chemical precipitation of gold, chemical nickel, palladium, silver precipitation, tin deposition, hard gold plating, soft gold plating, gold finger, etc.
Materials: FR-4, high Tg, halogen-free, high frequency (Rogers, Isola…), CEM, etc
Circuit board assembly process
1. According to customer Gerber file and BOM, make SMT production process file and generate SMT coordinate file
2. Check whether all production materials are ready, make a complete set of orders, and confirm the PMC plan of 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, laser steel mesh is made
5. Solder paste printing to ensure that the solder paste after printing is uniform, with good thickness and consistency
6. Mount the components to the circuit board through SMT Mounter, and carry out AOI automatic optical detection when necessary
7. Set the perfect reflow furnace temperature curve, let the circuit board flow through the reflow soldering, solder paste from paste, liquid to solid, after cooling can achieve good soldering
8. Through necessary IPQC intermediate inspection
9. Dip plug-in process passes plug-in materials through the circuit board and then flows through wave soldering for welding
10. Necessary post furnace process, such as leg cutting, post welding, plate surface cleaning, etc
11. QA conducts a comprehensive inspection to ensure the quality is OK。
PCBA testing is a key quality control link in the whole PCBA processing process. It is necessary to strictly follow the PCBA test standards and test the circuit board’s test points according to the customer’s test plan.
PCBA test also includes five main forms: ICT test, FCT test, aging test, fatigue test, and test in a harsh environment.
ICT (in-circuit test) test mainly includes on-off, voltage and current value and fluctuation curve, amplitude, noise, etc.;
The FCT (functional circuit test) test needs to burn the IC program, simulate the function of the whole PCBA board, find the problems in the hardware and software, and equip the necessary production fixture and test stand;
The burn-in test is mainly to power on PCBA board and electronic products for a long time, keep them working, and observe any failure faults. The electronic products after the aging test can be sold in batches;
Fatigue test is mainly to sample PCBA board and conduct high-frequency and long-time operation of functions to observe whether there is a failure, such as continuously clicking the mouse for 100000 times or turning on and off the LED light for 10000 times to test the failure probability, to feedback the working performance of PCBA board in electronic products;
The test under severe conditions mainly exposes the PCBA board to the temperature, humidity, drop, splash, and vibration of the limit value to obtain the test results of random samples to infer the reliability of the whole batch of PCBA plates.
Shenzhen IDEASPCB Technology Co., Ltd. provides overall PCBA OEM processing services, including upstream electronic components procurement to PCB production and processing, SMT chip, dip plug-in, PCBA testing, finished product assembly other printed circuit board assembly services. The company gives full play to its competitive advantages in scale procurement and quality control, and signs long-term cooperation agreements with many domestic and global electronic component manufacturers to ensure the quality of raw materials and stable supply, and transfer the preferential treatment to customers. Long term maintenance of IC, resistor, capacitor, inductor, transistor, and other procurement advantages can greatly save customer inventory costs, improve production turnover efficiency, and save time. We provide PCBA processing services for customers in the USA, UK, Korea, Russia, France, Canada, Australia, Romania, and Switzerland.
We provide PCBA processing services, focusing on the quality of circuit boards and PCBA quality control system. In the packaging process of components, high-quality solder paste, automatic printing machine, high-speed mounter, upper and lower eight temperature zone reflow soldering, AOI automatic optical detector, and ICT tester can effectively ensure the reliability and quality of electronic packaging process. Also, perfect IPC, IPQC, OQA, other management processes, clear job responsibilities, and strict IPC electronic assembly acceptance standards.
For the quotation of printed circuit board assembly services:
1. Complete PCB board making document (Gerber file) and board making requirements;
2. Complete BOM (including model, description, etc.);
3. PCBA assembly drawing.
PS: report PCBA function test cost, and provide PCBA function test method.
The manufacturing process of printed circuit board assembly involves a series of processes, such as PCB manufacturing, PCBA component procurement, inspection, SMT chip processing, plugin processing, program firing, testing, aging, etc. The supply chain and manufacturing chain are long, and the defects in any link will lead to the poor quality of PCBA board in large quantities, resulting in serious consequences.
In that case, the quality control of printed circuit board assembly processing is essential in electronic processing. What is the main quality control of PCBA processing? The following is a summary of professional PCB assembly factory idea PCB