About Wonderful
The videos we publish will help you understand the PCB making process, Wonderful PCB provides one-stop PCB assembly service. This is guaranteed through a product specification and quality control that is far more stringent than other suppliers, and ensures that the product delivers what it promises.
line
Because FPC will expand due to temperature and pressure when ACF is crimped, it is necessary to consider the expansion rate of crimping fingers when initially designing the circuit, and perform pre-compensation processing;
Typesetting
The designed products should be evenly and symmetrically distributed in the entire layout as far as possible, and the minimum distance between every two PCS products should be kept above 2MM. The copper-free parts and via-dense parts should be staggered as much as possible. These two parts are caused by material expansion and contraction in the subsequent manufacturing process. Two important aspects of the impact.
Material selection
The glue of the cover film should not be thinner than the thickness of the copper foil, so as to avoid the deformation of the product due to insufficient glue filling during pressing. The thickness of the glue and whether it is evenly distributed are the main culprits for the expansion and contraction of the FPC material.
（Picture of Wonderful PCB）
process design
The cover film should cover all the copper foil parts as much as possible. It is not recommended to stick the cover film in strips to avoid uneven force during pressing. The PI reinforcement bonding surface adhesive should not be too large if it is above 5MIL. If it is unavoidable, the cover film needs to be pressed and baked After the completion, the lamination and pressing of PI reinforcement will be carried out.
material storage
I believe that the importance of material storage is needless to say. It must be stored in strict accordance with the conditions provided by the material supplier. If it should be refrigerated, it should be refrigerated, and it should not be sloppy.
Manufacturing
drilling
It is best to add baking before drilling to reduce the expansion and contraction of the substrate during subsequent processing due to the high moisture content in the substrate.
electroplating
It should be made of short-side splints, which can reduce the deformation caused by the water stress generated by the swing. The swing can be reduced as much as possible to minimize the swing amplitude during electroplating. The number of splints also has a certain relationship. The number of asymmetric splints can be used with other side materials To assist; during electroplating, charge the lower tank to avoid the impact of sudden high current on the board, so as not to cause adverse effects on the board electroplating.
suppress
The traditional press machine expands and shrinks more than the fast press machine. The traditional press machine is cured at a constant temperature, while the fast press machine is heat-cured. Therefore, the traditional press machine must stabilize the change of glue control. Of course, the laminated board is also a very important part.
（Picture of Wonderful PCB）
bake
For fast-pressed products, baking is a very important part. The baking conditions must be such that the glue is completely cured, otherwise there will be endless troubles in subsequent production or use; the baking temperature curve is generally first gradually increased to the temperature at which the glue is completely melted , and then continue this temperature until the glue is completely cured, and then gradually lower the temperature and cool down.
Production
During the production process, try to maintain the stability of temperature and humidity in all workstations, and the transfer between workstations, especially those that need to be shipped out, requires special attention to the storage conditions of products.
Packaging
Of course, the completion of the product does not mean that everything is all right. It is necessary to ensure that the customer does not have any problems in the subsequent use. In terms of packaging, it is best to bake first to dry the moisture absorbed by the substrate during the manufacturing process of the product, and then use Vacuum packing, and instruct customers how to save.
Therefore, in order to ensure the stable quality of this kind of products, it is necessary to strictly follow the specific requirements from material preservation→each process control→packaging→customer use.
About Wonderful
Shenzhen Wonderful Technology Co., Ltd. is China’s top model and small batch circuit board manufacturer.
The company targets precision circuit board samples and small batches as the main target market. Since its establishment, it has adhered to the development concept of good quality and important reputation.
Invest huge sums of money to introduce advanced equipment, strictly regulate the operating standards and QC standards for incoming and outgoing materials, to ensure that the shipped products reach Seiko quality.
The self-developed ERP management system can realize the whole process of paperless operations such as online ordering, online payment, online production progress query, online logistics tracking, and online statistical report production, which greatly improves work efficiency.
It ensures that each order can be shipped quickly. After more than ten years of development, the company’s products and services have been well received by the market.
As well as the opening of an electronic component mall, integrated circuits, semiconductors, resistors, capacitors and other products are sold.
The company’s scale is developing rapidly, and the sample and small batch shipment capacity reaches 500 models/day.
The products are widely used in communications, medical equipment, industrial control products, aviation, military products, testing instruments,Automotive, computers and other peripheral products.
We will continue to pay attention to customers, with efficient delivery speed and perfect after-sales service, to become the most trusted brand supplier in the PCB industry.
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