PCBA Board Repair is also a super important link in whole PCB Assembly. Once it is not handled properly, it will lead to the scrapping of the PCBA board and affect the pass rate. So, what are the repair requirements for PCBA board?
PCBA Board Repair Requirements
1. Baking Requirements For PCBA & Moisture-Sensitive Components
1) All new components to be installed must be baked and dehumidified in the light of the moisture sensitivity level and storage conditions of the components, and in accordance with the relevant requirements in the “Specifications for the Use of Moisture Sensitive Components”.
2) If the repair process need to be heated to above 110°C, or if there are other moisture-sensitive components within 5mm around the repair area, it must be based on the moisture-sensitive level and storage conditions of the components and in accordance with the relevant requirements in the “Specifications for the Use of Moisture-Sensitive Components” Bake and dehumidify.
3) For moisture-sensitive components that need to be reused after rework, if you use hot air reflow, infrared, etc. To heat the solder joints through the component package, you must be based on the moisture-sensitive level and storage conditions of the components. Baking and dehumidification according to the relevant requirements in the Specifications for Device Use. For the rework process using manual ferrochromium heating solder joints, pre-baking treatment is not necessary under the premise that the heating process is controlled.
2. Storage Environment Requirements For Baked PCBA and Components
After baking, moisture-sensitive components, PCBAs and new components to be replaced need to be re-baked once the storage conditions exceed the time limit.
3. Requirements For PCBA Repair Heating Time
The allowed number of repair heating for components is not more than 4 times in total; The number of repair heating time allowed for new components is not more than 5 times; The number of repair heating time allowed for reused components that have been removed is not more than 3 times.
Advantages Grande PCB Assembly
1)Strength Guarantee
SMT factory: With imported SMT machines and multiple optical inspection equipment, which is able to produce 4 million points per day. Each process is equipped with QC personnel who will keep an eye on product quality.
DIP production line: Two wave soldering machines and more than 10 employees who have worked for over three years. That’ s to say, these workers are highly skilled and can weld various SMT & DIP components.
2)Quality Assurance With High Cost Performance
High-end equipment can paste precision special-shaped parts, BGA, QFN, 0201 package. It can also be soldered prototype pcba via SMT machine and placing bulk materials by hand.
Both samples, small and large batches can be produced. And there is no SMT Machine starting cost.
3)Rich Electronic Products SMT Soldering Experience With Stable Delivery
Accumulated services to thousands of electronics companies, involving SMT soldering services for various types of automotive equipment and industrial control motherboards. Furthermore,PCBA Products are often exported to Europe and the United States, and the quality is able to be affirmed by new and regular customers.
4)Strong Maintenance Ability & Reliable After-Sales Service
The maintenance engineers have sophisticated experience so that those defective boards caused by all kinds of smt soldering can be repaired. Meanwhile, ensuring the connectivity rate of each circuit board also make sense.
Order problems feedback will get response, solution and solved as soon as possible.
