Circuit board assembly processing advantage
kingford gives full play to its competitive advantages in scale procurement and quality control, and has signed long-term cooperation agreements with many electronic component manufacturers at home and abroad and around the world to ensure the quality and stable supply of raw materials, and transfer the benefits to customers.
We provide PCBA processing services, starting from PCB circuit board production, our own PCB manufacturers (obtained the very strict TS16949 certification of the automotive industry), pay attention to the quality of the circuit board and PCBA quality control system.
With decades of experience in purchasing electronic components, we maintain long-term cooperation with large brands to ensure the original packaging and procurement channels of components. In the process of component packaging, the selection of Qianzhu and Letai solder paste, to ensure the reliability of welding, with automatic printing press, Panasonic high-speed SMT machine, up and down eight temperature zone reflow welding, AOI automatic optical detector, can effectively ensure the reliability and quality of electronic packaging process.
In addition, perfect IPC, IPQC, OQA and other management processes, clear job responsibilities, strict implementation of IPC electronic assembly acceptance standards. For PCBA testing, we have professional engineers to perform 100% batch testing using a variety of test stands, including access, noise, amplitude, signal, temperature, humidity, drop or to perform customer detailed test plans. All efforts are aimed at becoming a refined PCBA processing factory.
2. The role of PCB reinforcing bars in PCBA processing
What are PCB stiffeners?
PCB stiffeners play an important role in providing mechanical support for PCB. They play an important role in PCBA machining of flexible circuit boards when stiffness is needed in some places.
PCB stiffeners are particularly required when components are placed in flexible areas, where the weight of these components puts pressure on the flexible material. They can also be used to create rigid printed circuit board surfaces to place parts in SMT machining and welding. In addition, connectors requiring multiple inserts require PCB stiffeners to reduce stress on PCB pads. Let's look at the purpose of PCB stiffeners in more detail.
The role of PCB reinforcing bar in PCBA processing
A, PCB reinforcement of various uses?
Simply put, PCB stiffeners are used where an area of the circuit needs to be hardened. Some common reasons for the use of stiffeners in PCBA processing:
1. Board support area with SMT or patch component PTH components.
2. Maintain reasonable thickness of flexible circuit.
3. PCB connectors are supported.
4. Make sure the board is treated better.
5. Ensure that the circuit board area is stable.
6. Help route and reserve arrays.
7. Help to eliminate stress, effective heat dissipation.
Two, in a broad sense, flexible PCB (FPC) reinforcement requirements belong to the following use categories:
1. Rigid component/connector area
2. ZIF(zero insertion force) thickness requirements
3. Local bending constraints
Three, component/connector reinforcement
They essentially create a rigid region connected to that region. They also protect the solder joints to ensure that the flexibility of the component area is not bent.
Four, ZIF reinforcement
They ensure increased thickness at the contact finger to meet specific requirements of the ZIF connector specification.
5. Local bending constraint
They confine the bending area to a specific location in the flexible design.
Shenzhen kingford is a professional PCB board assembly and processing manufacturer with its own PCB board factory and SMT patch factory. We can provide one-stop services from upstream electronic components procurement to PCB production and processing, SMT patch, DIP plug-in, PCBA testing and finished product assembly.
PCB board making ability
Energy production from 2 layers to 14 layers, 14-22 layers can be proofing production.
Minimum line width/spacing: 3mil/3milBGA Spacing :0.20MM
Minimum aperture: 0.1mm Size :610mmX1200mm
Ink: Tamura, Taiyo, Fudoken;
FR4: Shengyi, Kingboard, Harbour, Hongren, Guoji, Hezheng, Nanya,
(Shengyi S1130/S1141/S1170),Tg130℃/ Tg170℃ T g180℃ and other high TG plates)
High frequency plate: Rogers, Taconic, ARLLON;
Surface process: tin spray, lead-free tin spray, gold plating, full plate gold plating, plug gold plating, full plate thick gold, chemical tin (silver), anti-oxidation (OSP) blue glue, carbon oil
1. Maximum board card: 310mm*410mm(SMT);
2. Maximum plate thickness: 3mm;
3. Minimum plate thickness: 0.5mm;
4. Minimum Chip parts: 0201 package or parts above 0.6mm*0.3mm;
5. Maximum weight of mounted parts: 150g;
6. Maximum parts height: 25mm;
7. Maximum parts size: 150mm*150mm;
8. Minimum spacing of pin parts: 0.3mm;
9. Minimum ball parts (BGA) spacing: 0.3mm;
10. Minimum ball parts (BGA) ball diameter: 0.3mm;
11. Maximum parts mounting accuracy (100QFP) : 25um@IPC;
12. Patch capacity: 3-4 million points/day.