一.orcad
  1.Annotate    1)Update entire design & Incremental reference update          2)Update entire design & Add Intersheet References         2.Design Rules Check：无DRC错误     3.Create Netlist  4.Lock整个工程文件
二.Allegro PCB
1.重新导入Netlist2.Display-->Status     Update DRC   3.Tools-->Datebase Check           点击Viewlog:       4.Shape-->Global Dynamic Shapde Parameters-->Force Update  5.Shape-->Delete Islands  输出窗口无死铜数为0  6.Display-->Status  Update DRC7.EDA365 DFx check Tools-->DangLing Cline&Via Check8.Skill:ctv 检查丝印的重叠;ctn 检查丝印丢失，查看no_refdes.log文件9.Reports:
  Design Rules Check (DRC) Report
  Design Rules Net Shorts Check(DRC) Report
  Shape No Net
  Shape Islands
  Unconnect Pins Report
  Unplaced Components Report

10.Display-->Status
  Update DRC
  全绿