2020年（PCB印制电路板）PCB工艺设计规范V.doc

PCB印制电路板） PCB工艺设计规范V PCB工艺设计规范 _____________________________________________________________________________________ 修订信息表 版本修订人修订时间修订内容 目 录 前 言..........................................................................................................................................5 1 目 的 .......................................................................................................................................6 2 适用范围 ..................................................................................................................................6 3 引用/参考标准或资料 ...............................................................................................................6 4 名词解释 ..................................................................................................................................6 5 规范简介 ..................................................................................................................................7 6 规范内容 ..................................................................................................................................7 6.1 基板规格...............................................................................................................................................7 6.2 层间结构设计.......................................................................................................................................7 6.2.1 层间结构....................................................................................................................................7 6.2.2 半固化片规格...........................................................................................................................8 6.2.3 板厚............................................................................................................................................8 6.2.4 板厚公差....................................................................................................................................8 6.3 外形设计...............................................................................................................................................8 6.3.1 一般规则....................................................................................................................................8 6.3.2 外形尺寸....................................................................................................................................9 6.3.3 外形加工....................................................................................................................................9 6.3.4 翘曲度 .....................................................................................................................................11 6.4 孔和焊盘设计.....................................................................................................................................11 6.4.1 基本要求.................................................................................................................................11 6.4.1.1 孔壁铜厚..........................................................................................................................11 6.4.1.2 非金属化孔 .....................................................................................................................11 6.4.1.3 金属化孔..........................................................................................................................11 6.4.2 元件孔和元件焊盘.................................................................................................................12 6.4.3 导通孔 .....................................................................................................................................12 6.4.4 金属化边.................................................................................................................................12 6.4.5 槽的设计.................................................................................................................................12 6.4.6 标准安装孔.............................................................................................................................13 6.4.7 腰形长孔.................................................................................................................................13 6.5 器件工艺.............................................................................................................................................13 6.6 布局设计.............................................................................................................................................14 6.6.1 原点、板框及禁布区设置....................................................................................................14 6.6.2 布局基本原则.........................................................................................................................14 6.6.3 装联工艺选择.........................................................................................................................14 6.6.4 热设计要求.............................。