Hitachi Chemical Co. America, Ltd. [printed wiring boards]

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			Electronics-Related Materials
		inquiry	Semiconductor-Related
	Multiwire Board, is a PWB where copper wire pre-insulated with a polyimide resin is embedded in the insulation layer by a wiring machine to form a circuit. Multiwire Board allows cross wiring so that the number of wires containable in one layer significantly increases, and consequently an high-density board can be manufactured with a smaller number of layers than an ordinary PWBs. In addition, as Multiwire Board uses copper wire of a uniform diameter, it is superior in various electric characteristics such as providing stable characteristic impedance. Multiwire Board has characteristics of equal length wiring between high speed CPUs. Comparing with the PWBs using etching method, easy pattern designing can be achieved with MWB.		Display & Optics-Related
			Base materials for PWBs
			Printed Wiring Boards
			Package Substrate <High Density
			Build-up Multilayer Board>
			Package Substrate <Cavity BGA>
			High Layer and Large Size PWB
			High Density Build-up Multilayer
			Board <HITAVIA>
			High Density Multi-Wire Board
			PWB for IC Testers
			Test Fixture System for Logic IC
Features			Chemical-Related Materials
Achieve high density wiring and reduction in number of layer by using the method of			Products Category List
crossovers of the insulated wire.			Products Alphabetical List
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			Hitachi Chemical. Co, Ltd.






Achieve wiring design to attain required electric characteristics by equal length wiring
and pair wiring.







Realize the design characteristics easily because of the uniforming of wire diameter.








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