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How to Judge The Quality of PCB Board

With the rapid development of the mobile phone, electronics, and communication industries, it also promotes the continuous growth and rapid growth of the PCB board industry. People have more and more requirements for the number of layers, weight, precision, materials, colors, and reliability of components.

 

However, due to fierce market price competition, the cost of PCB board materials is also on a rising trend, and more and more manufacturers are monopolizing the market with low prices in order to enhance their core competitiveness. However, behind these ultra-low prices are obtained by reducing material costs and process manufacturing costs, but devices are usually prone to cracks and scratches, and their precision, performance and other comprehensive factors have not reached the standard which seriously affects the solderability and reliability of the product.

 

Faced with the various PCB boards on the market, there are two ways to distinguish the quality of PCB circuit boards. The first method is to judge from the appearance, and the other is to judge from the quality specification requirements of the PCB board itself.

 

How to judge the quality of PCB board:
A. Distinguish the quality of the circuit board from the appearance.

Under normal circumstances, the appearance of the PCB circuit board can be analyzed and judged through three aspects.

 

1. Standard rules for size and thickness.

The thickness of the circuit board is different from that of the standard circuit board. Customers can measure and check the thickness and specifications of their own products.

 

2. Light and Color.

The external circuit board is covered with ink, and the circuit board can play the role of insulation. If the color of the board is not bright, and there is less ink, the insulation board itself is not good.

 

3. The appearance of the weld.

The circuit board has many parts. If the welding is not good, the parts are easy to fall off the circuit board, which will seriously affect the welding quality of the circuit board. The appearance is good. It is very important to identify carefully and have a stronger interface.

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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 advantage.

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Email : [email protected]

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PCB Blog

Electromagnetic Compatibility Design of Mobile Phone PCB (1)

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The PCB Circuit Design of LED Switching Power Supply

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Electromagnetic Compatibility Design of Mobile Phone PCB (2)

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