Creating a Layout from a SchematicWord文档格式.docx
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Creating a Layout from a SchematicWord文档格式.docx
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∙Importingandplacingadatafileinaschematic
∙Changinganelementsymbol
∙Placingmicrostriplinesforlayout
∙Assigninganartworkcelltoaschematicelement
∙Viewingalayout
∙Anchoringalayoutcell
∙Creatinganartworkcell
∙ManipulatingtheMTRACE2elementinlayout
∙Snappingfunctionsinlayout
∙Exportingalayout
CreatingaNewProject
Theexampleyoucreateinthischapterisavailableinitscompleteformaslayout_example.empinyourC:
\ProgramFiles\AWR\AWR2010\Examplesdirectory.ToaccessthisfilefromalistofGettingStartedexampleprojects,chooseFile>
OpenExample,Ctrl-clicktheKeywordscolumnheaderandtype"
getting_started"
inthetextboxatthebottomofthedialogbox.Youcanusethisexamplefileasareference.
Tocreateaproject:
1.ChooseFile>
NewProject.
2.ChooseFile>
SaveProjectAs.TheSaveAsdialogboxdisplays.
3.Navigatetothedirectoryinwhichyouwanttosavetheproject,type"
layout_example"
astheprojectname,andthenclickSave.
ImportingaLayerProcessFile
ALayerProcessFile(LPF)definesthedefaultsettingsfortheLayoutView,includingdrawinglayers,layermappings,3Dviews,andEMsightmappings.
ToimportanLPF:
1.ClicktheLayouttabatthelowerleftofthewindowtodisplaytheLayoutManager.
2.Right-clickLayerSetupintheLayoutManager,andchooseImportProcessDefinition.TheImportProcessDefinitiondialogboxdisplays.
3.Locatetheprogramdirectory(C:
\ProgramFiles\AWR\AWR2010isthedefaultinstallationdirectory)anddouble-clickittoopenit.Ifyouchangedthedefaultinstallationdirectory,thenlocatethatdirectoryinsteadwhentheprogramdirectoryisreferenced.
4.SelecttheMIC_english.lpffileandclickOpen.ClickYeswhenpromptedtoreplacethedefaultlpffile.ThefollowingfigureshowstheLayoutManager.
EditingDatabaseUnitsandDefaultGridSize
Adatabaseunitisdefinedasthesmallestunitofprecisionforalayout.Itisveryimportantthatthisparameterisnotchangedafteritisset.Changingdatabaseunitscancauseroundingerrorsthatmayleadtoproblemsinthelayoutfile.ThegridsizeisimportantbecausemanyICdesignsmustresideonagrid.Thegridmustbegreaterthanorequaltothedatabaseunit.Becausethegridmultiplier'
ssmallestunitis.1x,youshouldsetthegridto10timesthedatabaseunittopreventhavingasmallergridthandatabaseunit.
Tosetthedatabaseunitandgridsize:
1.ChooseOptions>
LayoutOptions.TheLayoutOptionsdialogboxdisplays.
2.OntheLayouttab,type"
.1"
inGridspacingand"
.01"
inDatabaseunitsize.
3.InSnaptogether,selectAutosnaponparameterchangesandthenclickOK.
ImportingaGDSIICellLibrary
CelllibrariesareusedinMicrowaveOfficetoprovideboththephysicalpackagesandfootprintsforprintedcircuitboardorhybriddesignprocesses,aswellasthestandardartworkcellsusedinMMICandRFICdesignprocesses.MicrowaveOfficesupportstheGDSIIfileformatasthenativedrawingtoolformat.
ToimportaGDSIIcelllibrary:
1.Right-clickCellLibrariesintheLayoutManagerandchooseImportGDSIILibrary.
2.NavigatetotheC:
/ProgramFiles/AWR/.../Examples/directoryintheAWRprogramdirectoryanddouble-clickittoopenit.
3.Selectthepackages.gdsfileandclickOpen.TheimportedcelllibrarydisplaysintheLayoutManager.Ifawarningmessagedisplays,clickOK.
ImportingaDataFile
Toimportadatafile:
1.IntheProjectBrowser,right-clickDataFilesandchooseImportDataFile.TheBrowseforFiledialogboxdisplays.
3.SelecttheN76038a.s2pfileandthenclickOpen.
PlacingaDataFileinaSchematicandAddingaGroundNode
Toplaceadatafileinaschematicandaddagroundnode:
1.Right-clickCircuitSchematicsinProjectBrowser,chooseNewSchematic,andcreateaschematicnamed"
qslayout"
thenclickOK.
2.ClicktheSUBbuttononthetoolbartoaddasubcircuit.TheAddSubcircuitElementdialogboxdisplaysasshowninthefollowingfigure.
3.SelectN76038afromthelistandselectExplicitgroundnodeastheGroundingtype.
4.ClickOKtoplaceitintheschematicwindow.
ChangingtheElementSymbol
YoucanchangethesubcircuitsymboltorepresentaFETsothatyoucanseewhichnodescorrespondtothegate,drain,andsource.
Tochangetheelementsymbol:
1.Double-clickthesubcircuitelementintheschematicwindow.TheElementOptionsdialogb
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