Keyword: printed circuit board, PCB components, material of PCB, PCB production
(Printed circuit board, PCB for short) is the assembly of electronic components with substrate, and is in general the substrate form the point of connection between a predetermined design and printing PCB components. The product's main function is to make all kinds of electronic components forming order circuit connection and ACTS as relay transmission, is the key to the electronic products, electronic interconnection. The printed circuit board manufacturing quality, not only directly affect the electronic.
(Printed circuit board, PCB for short) is the assembly of electronic components with substrate, and is in general the substrate form the point of connection between a predetermined design and printing PCB components. The product's main function is to make all kinds of electronic components forming order circuit connection and ACTS as relay transmission, is the key to the electronic products, electronic interconnection. Printed circuit board manufacturing quality, not only directly affects the reliability of electronic products, but also affect the system overall competitive ability of products, so the printed circuit board is referred to as the "mother of the electronic system. Printed circuit board industry can to a certain extent, reflects the development level of a country or a region the development speed and technical level of the electronics industry.
Raw materials such as glass fiber yarn, glass fiber yarn by silica sand in the kiln calcine into liquid, through tiny alloy nozzle to form very fine glass fiber, and hundreds of root fiberglass foul into glass fiber yarn. Kiln construction investment is huge, as the capital-intensive industries, 30000 tons of kiln need 400 million yuan, the new kiln need for 18 months, difficulty of the business cycle, and once the ignition must 24 hours of continuous production, and for five years or so, must shut down half a year maintenance, enter exit cost.
Glass fiber cloth, glass fiber cloth is one of the raw materials of copper clad, composed of glass fiber yarn spinning and weaving, accounts for about 40% of the cost sheet (plate) and 25% (sheet). Glass fiber cloth manufacturing and weaving enterprise is similar, can be controlled by controlling the speed and quality capacity, and specification is unitary and stable, since the second world war almost no too big changes on the specification. And CCL is different, the price of the glass fiber cloth is affected by supply and demand, the largest in recent years the price of volatility between 0.50 ~ 1.00 $/ m. The current capacity of Taiwan and mainland China account for about 70% of the world. Key based on the relationship between upstream and downstream operations, a price is 10 ~ 150000 looms, generally for more than 100 can be normal production, but the subsequent heat treatment and chemical processing equipment of high capital requirements, grade must, weaving capacity expansion easy, more flexible.
Copper foil, copper foil is the largest proportion of the cost of sheet materials, accounts for about 30% of the cost sheet (plate) and 50% (sheet), so the increase in the price of the copper foil sheet is the main driving force. Wide application of the copper foil, not only used in the industries of copper clad, when copper clad industry downturn, copper foil manufacturers can switch to other purposes of copper foil. The price of copper foil closely reflect changes in the price of copper, with copper prices are rising, the copper foil manufacturers transfer cost pressure downstream. Copper foil industries of high technical barriers lead to domestic supply shortages, high-grade copper foil still needs to be imported in great quantities, the cost of investing is very big.
Copper clad (CCL) : in electronic level glass fiber cloth as the backing material, epoxy resin, after drying treatment, made half curing state bonding sheet, in the single side, double side and multilayer board face again apply upper thin copper foil, specially the hot-pressing process conditions, is the direct raw material of PCB. Copper clad industry capital demand is bigger, small factory is about 50 million yuan, concentration is higher, there are about 100. Copper clad industry is cyclical industry, the cost driver in the upstream and downstream industry chain structure, CCL of PCB's bargaining power is stronger, as long as the downstream demand, can will cost upward pressure on the downstream PCB manufacturer, but only a mega CCL can in the purchase of raw materials such as glass fiber cloth and copper foil with a strong voice. Due to the product USES a single copper clad, can only be sold to the printed circuit board factory, when PCB is bad, can only demand to ensure the use of capacity.
PCB: relative to the upstream and downstream industry, printed circuit board industry characteristics determine its industrial concentration is not high; In the fierce market competition environment, only those who are good market positioning and high operating efficiency is the long-term competitiveness of enterprise, a common PCB production line need to more than 2000 yuan, a multilayer need to invest 50 million, HDI to invest 200 million yuan of above. , because of the great industrial division of labor is very fine, has specialized in drilling, single station process outsourcing, low-grade products supply exceeds demand. HDI and other high-end printed circuit board industry belongs to the fund, the labor intensive industry, the management and technical requirement is high also, often become the bottleneck of capacity expansion.
Source: //www.seekic.com
