下载
加入VIP
  • 专属下载特权
  • 现金文档折扣购买
  • VIP免费专区
  • 千万文档免费下载

上传资料

关闭

关闭

关闭

封号提示

内容

首页 PCB元器件封装建库规范

PCB元器件封装建库规范.doc

PCB元器件封装建库规范

俄要让迩永远得卜到
2017-09-17 0人阅读 举报 0 0 暂无简介

简介:本文档为《PCB元器件封装建库规范doc》,可适用于综合领域

PCB元器件封装建库规范XXXXXXXXXXXXX质量管理体系文件编号:CZDPPCB元器件封装建库规范第A版受控状态:发放号:发布实施XXXXXXXXXXX发布ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistoricalParameters选项卡的介绍)如上图所示通过该选项卡可以编辑和设定焊盘的类型钻孔尺寸和单位等基本参数。)焊盘类型。在TYPE栏内可以指定正在编辑的焊盘属于哪一类型焊盘它有个选项分别是“Through”(通孔类)、“BlindBuried”(埋盲孔类)和“Single”表贴类)如图图焊盘类型设定)内层(Internallayers)。Internallayers栏有两个选项分别是“Fixed”(固定)和“Option”(可选)如图所示该栏定义了焊盘在生成光绘文件时是否需要禁止末连接的焊盘。“Fixed”选项保、留焊盘“Option”选项可禁止生成末连接的焊盘。图内层设定)单位(Unit)。Unit栏指定了采用何种类型的单位编辑焊盘。包含“Units”(单位类型)和“Decimalplaces”(精度用小数点后面的位数表示)两个选项单位可选择的类型有mils(千分之一英寸)、Inch(英寸)、Millimeter(毫米)、Centimeter(厘米)和Micron(微米)。如图。设定精确度的时候在精确度编辑框内填写所需的精确度数字(注意:精确度只能是小数点后之间。图单位设定:单位类型昨精确度)多孔(Multipledrill)勾选其中的Enable选项可以使设计者在一个有多个过孔的焊盘上对行和列以及间距革行定义设置钻孔的数目行和列的数目设置范围~总孔孔数不超过。)钻孔参数(Drillhole)Drillhole栏用于设定在焊盘为通孔或埋盲孔时的类型和钻孔的直径如图所示。电镀类型有种分别为“Plated”(电镀)、“NonPlated”(不电镀)、“Optional”(随意)。“Size”表ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical示钻孔直径根据设计要求填写其下的(OffsetX)和(OffsetY)表示焊盘坐标原点偏离焊盘中心的距离一般高为()表示焊盘中心与坐标原点重合。图钻孔参数的设定)钻孔符号(Drillsymbol)。Drillsymbol栏用于设定生成钻孔文件时用某种符号和字符来惟一地表示某一类型的过孔以示区别。如图图钻孔符号的设定Layers选项卡Layers选项卡主要由Padstacklayers(焊盘叠层)、Regulaypad(正焊盘)、ThermalRelief(热隔离焊盘)、AntiPad(反焊盘)如图ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图Layers选项卡,RegularPad:用正片生成的焊盘可供选择的形状有、Circle、Square、Rectangle、Oblong、Shape。,ThermalRelief:以热隔离的方式替代焊盘。,AntiPad:正片的焊盘相对为负片的焊盘一般为圆圈用于阻止引脚与周围的铜箔相连。,Shape:如果焊盘的形状为表中末列出的形状刚必须先在Allegro中生成Shape的方式产生焊盘的外部形状在焊盘编辑器中调用Shape来生成焊盘。下面详细介绍Padstacklayer栏中“Layer”层所列出各项的物理意义。,BEGINLYAER:定义焊盘在PCB板中的起始层一个般指底层。,ENDLAYER:定义焊盘在PCB板中的结束层一般指底层。,DEFAULTINTERNAL:定义焊盘在PCB板的中处于顶层与底层之间的各层。,SOLDERMASKTOP:定义焊盘顶层铜箔去除焊窗。,SOLDERMASKBOTTOM:定义焊盘底层铜箔去除焊窗。,PASTERMASKTOP:定义焊盘顶层涂胶开窗此功能用于PCB板的钢网加工。,PASTERMASKBOTTOM:定义焊盘底层涂胶开窗此功能用于PCB板的钢网加工。ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistoricalSMT焊盘的设计)启动焊盘调计器PadDesinger)FileNew命令系统弹出PseNew对话框在文件栏中输入“smd”具体命名规则见第章如图所示单击保存按钮关闭对话框。图PseNew对话框)在Parameters选项卡中进行如下设置见图图设置Parameters选项卡ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical)Padsatcklayers设置如图阻焊相关要求见第章高计要求。图Padstacklayers相关设置)FileSave,这样一个Pad就做好了。通孔焊盘的设计)启动焊盘调计器PadDesinger)FileNew命令系统弹出PseNew对话框在文件栏中输入“padcird”具体命名规则见第章如图所示单击保存按钮关闭对话框。ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图PseNew对话框)在Parameters选项卡中进行如下设置见图图设置Parameters选项卡ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical)Padsatcklayers设置如图阻焊、ThermalReliefandAntiPad相关要求见第章高计要求。图Padstacklayers相关设置)FileSave,这样一个Pad就做好了。PCB封装库设计(只针对用向导制作库)如何起启动封装设计器)开始程序allegrospbPCBEditor,在出来的对话框中选择如图ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图)进入AllegroPackage工作界面。选择SetupDrawingSize,弹出对话框如图图DrawingParameters对话框列子利用向导器设计一个SOIC的型元件下面介绍采用向导器设计SOIC的过程。在设计封装之前首先要确定器件封装的几何尺寸所用的焊盘。选取的焊盘如果不合适会引起器件在焊接时出现工艺问题。这个要根据器件的资料来看并且做适当的扩展请参照第章~)首先进入Allegro工作界面选择FileNew命令打开NewDrawing对话框在DrawingName文本框里输入名称“SOIC”各种类型元件的命名规则详见第章PCB封装库设计规范在DrawingType下列表中选择“Packagesymbol(wizard)”如图所示单击OK按钮进入下一步。ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图选择向导器设计封装)择器件类型在弹出的如图所示的对话框中选择器件类型SOIC单击Next按钮进放下一步。图选择器件封装类型)调用模块。系统弹出如图所示的对话框供设计者调用模块单击按钮然后单击Next按钮进入下一步。ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图调用模板)单位和位号。此时出现如图所示的对话框供调计者设置长度单位和精度以及位号设置完成后单击按钮进入下一步。图设置参数单位和位号)设置尺寸参数。此时界面如图供设计者设置器件的尺寸参数设置完成后单击NEXT钮。图设置尺寸参数参数选择可选择下面参考ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical)选择器件引脚焊盘。如图设置完成后单击NEXT按钮进入下一步。图选择引脚焊盘)设置坐标原点。如图本院以Centerofsymbolbody为标准。图设置器件坐标参考点)确定设置完成此时界面积出现如图所示的对话框提醒设计者所有步骤已完成如无误可单击按钮完成设置过程如果要修改前面的设置可单击按钮重新设置参数。ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图确定参数设定)点击Finish,出现如图图添加标号RefDes与REFDES,class和subclass为REFDESASSEMBLYTOP输入REF放在器件的左上侧,class和subclass为REFDESSILKSCREENTOP输入REF放在器件的左上侧,class和subclass为DeviceTypeASSEMBLYTOP输入DEV放在器件的中央,class和subclass为DeviceTypeSILKSCREENTOP输入DEV放在器件的中央以上字体暂定为号字体别的封装也一样方便以后做修改。)定义封装高度(可以选择)选择Setup>Areas>PackageBoundaryHeightclass和subclass为PACKAGEGEOMETRYPLACEBOUNDTOP点击刚才自动生成的封装边界(指class和subclass为PACKAGEGEOMETRYPLACEBOUNDTOP输入高度如图ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical图器件高度设置)到此一个封装就做好别的类型与此类似在此就不做介绍请参考相关书籍。统一标准。)RefDes与REFDES,class和subclass为REFDESASSEMBLYTOP输入REF放在器件的左上侧,class和subclass为REFDESSILKSCREENTOP输入REF放在器件的左上侧,class和subclass为DeviceTypeASSEMBLYTOP输入DEV放在器件的中央,class和subclass为DeviceTypeSILKSCREENTOP输入DEV放在器件的中央以上字体暂定为号字体别的封装也一样方便以后做修改。在最后出GERBER的时候在SetupTextSizes里做统一修改~ofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorical板本标号的字体大小WidthHeightPhotowidthCharspace推荐(mils)如下图所示)ACKAGEGEOMETRYSilkscreenTop)线宽设为mil,在出光绘的时候统一设为一个值如图图定义Mil的线宽为milofvisionYibinformationintheCentersurroundedby,organicdispersionbandofbeadspacelayoutstructure,asleadingdevelopmentofthecitytotheEastalongtheYangtzeRiverShiGuarea,lingangnewvisiontoexpand,NaxidistricttotheNorth,theEastopenplacestoexpand,Jianganeastwardconnection,PingShan,radiationtotheWesttheSouthBankarea,theminjiangRiverarea,GoldenSandsareaonalongtermbasisinareasonablespacetodevelop,perfecturbandistrictalongtheYangtzeRiverinYibin"Ribbonmulticenter"strategicvisionofspaceframeYibinCenterCitydevelopmentconstructionsteeringextensiontypeextendedandconnotationtypeupgradesimultaneouslyofmode,inMetroconstructionofwhileiscommittedtooldcitytransformationandbuiltdistrictofperfect,throughliveandindustrywithtoofreasonablelayoutoptimizationcitystructure,improvecitytrafficoperationefficiencyvigorouslyimprovedcityenvironment,shapingcityfeatures,upgradecityquality,playcityofservicefunction,formedhasperfectmodernservicecapacityofbigcityConstructionofurbangreenspacesystem,promotingtheconstructionofperipheralgreenspaceandprotectionofhistorica

用户评价(0)

关闭

新课改视野下建构高中语文教学实验成果报告(32KB)

抱歉,积分不足下载失败,请稍后再试!

提示

试读已结束,如需要继续阅读或者下载,敬请购买!

文档小程序码

使用微信“扫一扫”扫码寻找文档

1

打开微信

2

扫描小程序码

3

发布寻找信息

4

等待寻找结果

我知道了
评分:

/72

PCB元器件封装建库规范

VIP

在线
客服

免费
邮箱

爱问共享资料服务号

扫描关注领取更多福利