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> pursuit of miniaturization of electronic products, before the narrowing of perforation plug-in components have been unable to function more complete electronic products, integrated circuit (IC) has been adopted by the element without perforation, large-scale, high integrated IC, in particular, to adopt the surface patch components.
> the product mass and production automation, factory with low cost and high yield, to produce high quality products to meet customer needs and strengthen the development of the market competitive power electronic components;
> the development of integrated circuit (IC), multiple application of electronic science and technology revolution of semiconductor materials is imperative, chasing the international trend.
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