深セン Zhongxinhua 電子工業株式会社
工場見学

プリント配線コード

ソース:

Aprintedcircuitboard (PCB) mechanicallysupportsandelectricallyconnectselectroniccomponentsusingconductivetracks、padsandotherfeaturesetchedfromcoppersheetslaminatedontoanon conductivesubstrate。PCBscanbesinglesided(onecopperlayer),doublesided(twocopperlayers)ormulti-layer(outerandinnerlayers)。マルチ layerPCBsallowformuchhighercomponentdensity.Conductorsondifferent layersareconnectedwithplated-throughholescalledvias。

AdvancedPCBsmaycontaincomponents コンデンサー、resistorsoractivedevices embeddedinthesubstrate。FR 4glassepoxyistheprimaryinsulatingsubstrateuponwhichthevastmajorityofrigidPCBsareproduced.AthinlayerofcopperfoilislaminatedtooneorbothsidesofanFR 4panel.Circuitryinterconnectionsareetchedinto copperlayerstoproduceprintedcircuitboards。

Complexcircuitsareproducedinmultiplelayers.Printedcircuitboardsareusedinallbutthesimplestelectronicproducts.AlternativestoPCBsincludewirewrapandpoint-to-pointconstruction.PCBsrequiretheadditionaldesignefforttolayoutthecircuit,butmanufacturingandassemblycanbeautomated.ManufacturingcircuitswithPCBsischeaperandfasterthanwithotherwiringmethodsascomponentsaremountedandwiredwithonesingle 部分。さらに、オペレーターの wiringerrorsareeliminated。

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