From:sochi
PCB circuit boards what widely used in electronic products, such as experimental instruments, computers and etc, are crucial component in electronic field. Therefore, during PCB circuit board designing and manufacturing the key point is holding professional knowledge and thorough considering of relative electronics industry simultaneously to ensure perfectly practical application.
What should be paid attention to when designing PCB circuit boards
1. Manufacturing type
PCB circuit boards products are divided into single-sided aluminum substrates, double-sided circuit boards and multi-layer circuit boards. Each has different characteristics. Therefore, experienced and powerful PCB manufacturers always consider which PCB circuit board must be produced with proper process.
2. The raw material of the substrate material
To make PCB circuit boards, the choice of raw materials is vital for the substrate PCB. Polyimide (PI) film is composed of polymer materials, resin materials and modified raw materials , and can be used as the base material of copper clad laminates. There are many kinds of resin materials, such as urea-formaldehyde resin,epoxy resin adhesive, PTFE and so on. There are two raw materials for improvement, cardboard and fabric surfaces, which depend on the physical properties of the substrate, such as resistance to cold and tensile strength.
3. Non-electrical performance indicators of copper clad laminates
The quality of copper clad laminates will directly influence the quality of PCB circuit boards, and the quality of copper clad laminates is mainly manifested in non-electrical performance indicators such as peel strength, compression strength, swell-shrink characteristics, and solder resistance.
Technical difficulties that need to be solving
1. The speed and efficiency of information transmission: If the efficiency of information transmission is low, the reception of information cannot be received in a short time.
2. The limit value setup of the current. If the capacity of the current is insufficient, it will be easily cause short circuit or circuit damage.
3. The high compatibility with various electronic products. Different types of electronic equipment in the market result in the different models and sizes. Non-compatibility of the circuit board will lead to unavailable . Only a high level adaptation can perform the function serve and fit properly.
Overview of the PCB industry chain
The printed circuit board manufacturing industry is also divided into upstream and downstream industries. The upstream is mainly copper foil, copper foil substrate, glass fiber cloth, resin and other raw material industries. Downstream is more applied in communications, optoelectronics, automobiles and other fields.
Among the upstream enterprises, the suppliers of electrolytic copper foil include Nuode Co., Ltd., Chaohua Technology, etc.; the suppliers of special wood pulp paper include, Chaohua Technology, etc.; the suppliers of electronic grade gauze cloth mainly include Honghe Technology and Shengxiang Electronics, etc. Enterprises; synthetic resin suppliers mainly include Wanhua Chemical and Shengquan Group.
The middle position of the industry are PCB raw materials and PCB manufacturers,copper clad laminates and prepregs are important raw materials. Manufacturers of copper clad laminates include Ultrasonic Electronics, Kingboard Group, Chaohua Technology and other enterprises.
The downstream of the industry is mainly manufacturers in the fields of communication equipment, semiconductors, consumer electronics, and aerospace, such as ZTE, FiberHome, Huawei, and Xiaomi.
The development of PCB industry and downstream industries are further mutually associated
and complementary advancement . Printed circuit boards are indispensable electronic components in modern electronic information products. The development level of the industry can reflect the development speed and level of a country or region's electronic industry .
