Conventional multilayer printed wiring boards (PWBs) generally contain epoxy resin bromine, which may generate dioxin at the time of disposal depending on the incineration method.We have developed an environmentally friendly PWB using flame retardants such as nitrogen/phosphorous chemicals, the first PWB in the world that does not generate dioxin during incineration, and have applied it to a notebook PC (DynaBook Satellite 2510).By the year 2000, we are planning to apply this environmentally friendly PWB to all our notebook PCs.
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