Judging from appearance
1，Appearance of weld
Because there are many PCB circuit board parts, if the welding is not good, the circuit board parts will fall off easily, seriously affecting the welding quality and appearance of the circuit board, so it is very important to weld firmly.
2，Standard rules for dimensions and thickness
As PCB has different thicknesses of a standard circuit board, users can measure and check according to their own requirements.
3，Light and color
Usually, the external PCB circuit board has an ink covering to act as insulation. If the color of the board is not bright, less ink will indicate that the insulation board itself is not good.
Judge from plank
1, ordinary HB board is cheap, easy to deformation and fracture, can only do a single panel, the component surface color is deep yellow, with stimulating smell, copper-coated rough, thin.
2, Single-sided 94V0, CEM-1 board, the price is relatively higher than cardboard, the component surface color is light yellow, mainly used for fire rating requirements of the industrial board and power board.
3FR4 board has a high cost, good strength, and green double-sided appearance. Basically, most PCB circuit boards are made of this material, and copper coating can be very precise and fine, but relatively speaking, unit board is also heavy.PCB circuit board no matter what color printing ink to be smooth, no false wire dew copper and bubbling phenomenon.
XPCB is a high-tech enterprise dedicated to providing customers with one-stop high-end printed circuit board manufacturing services from sample research and development to mass production. We can deliver faster at the same cost, and we can deliver at the same speed at a lower cost. At the same time, combined with the market and customer needs, we also provide customers with CAD design, PCBA processing, and components purchase, and other value-added services. It has established service centers in several major domestic electronic product design centers and has provided rapid electronic manufacturing services to more than 3,000 customers worldwide.
After years of grinding and precipitation, XPCB has established a unique one-stop electronic manufacturing service platform and introduced a large number of senior talents in the industry. Through long-term running in and training, it has created a production and technical service team with excellent compound ability. Our business covers the CAD design, PCB manufacturing, PCBA processing, and components supply, through the depth of the resource integration to provide clients with a convenient one-stop shopping experience, improve the efficiency of purchasing and supply chain management to reduce costs, make a complete set of the quality of the product more reliable, products are widely used in industrial control, electric power, national defense, medical, automotive, security, computer, etc. Fast delivery is our long-term commitment, excellent quality is the solid foundation on which we are rooted in the electronic product market, lean manufacturing is the process of our product online control, and professional service has been the praise of our customers.
XPCB LIMITED, as an innovative one-stop high-end electronics manufacturing service expert, will be committed to bringing you a more convenient experience, more intimate services, and continue to innovate and progress!
XPCB Limited is a premium PCB & PCBA manufacturer based in China.
We specialize in multilayer flexible circuits, rigid-flex PCB, HDI PCB, and Rogers PCB.
Quick-turn PCB prototyping is our specialty. Demanding project is our key capability.