[ Date Time : 2015-3-20 ] [ Comments : 0
Now there are many different types of PCB PCB. For example: the multilayer printed circuit board, rigid printed circuit board, rigid single-sided PCB, double-sided PCB rigidity, rigid multilayer printed circuit board, flexible multilayer PCB and flexible printed circuit board, etc. The PCB material is what? The following will give you details about it .
Substrate materials technology and production, after half a century of development, the annual output has reached 290 million square meters around the world, the development time is electronic product, semiconductor manufacturing technology, the electronic installation technology, the innovation development of printed circuit board technology driven.
Since the 1943 s made of phenolic resin base copper-clad plate into practical application, the development of the substrate material is very quickly. In 1959, the United States, Texas instruments company made the first piece of integrated circuit, put forward the higher density for printed circuit board assembly requirements, thus promote the generation of the sandwich plate. In 1961, the United States Hazeltine Corpot ation company development success with metallized hole process method of laminated technology. In 1977, the BT resin has realized industrialization, profes sional development to the world and provides a new type of high and low Tg substrate materials.
In Japan in 1990, IBM announced with photosensitive resin as a new technology of insulation layer of a multilayer laminated method, in 1997, including product layer laminated sandwich plate of high density interconnect technology to the development stage. Meanwhile, BGA, CSP, as a typical representative of plastic substrate with the swift and violent development. In the late 1990 s, some green flame retardant containing bromine, antimony and other new substrates grew rapidly and to market.
Substrate materials in our country has been 40 years of development, at present has formed an annual output value of about 9 billion yuan of the scale of production. Copper clad in China in 2000, production has reached 64 million square meters, production value of 5.5 billion yuan. The production of paper-based copper clad has firmly established itself as one of the world third.