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ID:5387945
大小:1.20 MB
页数:22页
时间:2017-12-08
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1、ULstandardsforPWBcertification:印刷电路板审核所使用的UL标准:oUL796Printed-WiringBoardsUL796印刷线路板标准oUL94TestsforFlammabilityofPlasticMaterialsforPartsinDevicesandAppliancesUL94燃烧测试标准oUL746EPolymericMaterials-IndustrialLaminates,FilamentWoundTubing,VulcanizedFibre,andMaterialsUsedinPrintedWiring
2、BoardsUL746E印刷线路板基材认证标准oUL746FPolymericMaterials-FlexibleDielectricFilmMaterialsForUseInPrinted-WiringBoardsandFlexibleMaterialsInterconnectConstructionsUL746F柔性印刷线路板材认证标准Common-usedGLOSSARYofPWB常用的印刷线路板专业术语2.1BASEMATERIAL:Aninsulator,consistingoforganicorinorganicmaterialthatsupp
3、ortsapatternofconductivematerial.基材:一种绝缘体,由有机或者无机的材料组成,是导体材料的载体。2.2BUILD-UPTHICKNESS:Overallthicknessofacombinationofmaterials.Unlessotherwiseindicated,thebuild-upthicknesswillrefertotheoverallthicknessofaboardconstructionwherenointernalorexternalconductormaterialresides.压合厚度:各种材料
4、厚度的总和。除非另外的说明,压合厚度是不包括内层,外层铜箔厚度的总厚度。2.3SINGLELAYERBOARD:APWBwithonlyonelayerlaminate,mayincludesinglesidedcopperanddoublesidedcopper.AndinUL,wedifferentiatethemintosinglelayersinglesidedandsinglelayerdoublesided.单层板:只有一层基材的印刷线路板,可包含单面铜箔或者双面铜箔。在UL,我们会区分单层单面板和单层双面板。2.4EDGECONDUCTOR–
5、Aconductorparallelwithandspacednotmorethan0.4mm(1/64inch)fromtheedgeofaprinted-wiringboard.边缘导体-导体的边缘与板边的距离在0.4mm的范围内。请参考下图。AA:导体的边缘与板边的距离在0~0.4mm之间,且不可以切到铜箔。42.5IMMERSIONSILVER:Consistsofaverythincoatingtypicallylessthan0.55microns(0.0217mils)ofnearlypuresilvercreatedbygalvanicdi
6、splacementandmaycontainaslightamountoforganicmaterialdepositedwiththesilver.浸银:由很薄的(小于0.55微米)接近纯银的涂层组成。纯银通常由置换产生,可能会含有少量的沉积的有机物。2.6MAXIMUMOPERATIONTEMPERATURE:Themaximumtemperaturetheboardwillbeexposedtointheendproductduringoperatingconditions.最高工作温度:在连续作业的情况下,成品所能承受的最高温度。2.7MIDBO
7、ARDCONDUCTOR:Aconductorspacedmorethan0.4mm(1/64inch)fromtheedgeofaprinted-wiringboard.DifferentwiththeEdgeConductor.中部导体:边缘距板边大于0.4mm的导体。区别于边缘导体。2.8DELAMINATION:Aplanarseparationofmaterials(i.e.separationbetweenconductorandbasematerial,prepreg,dielectricmaterial,etc.).分层:材料之间的分离(如
8、:导体与基材之间,导体与半固化片,以及绝缘层之间的分离,等等)。2
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