inst
flat design下的instance
Parent Object
group, hInst, instTerm, io, pBlkg, ptn, rBlkg, sdp, topCell
Child Object
area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,boxes,cell,group,hInst,instTerms,isAlwaysOn,isDontTouch,isHaloBlock,isIsolation,isJtagElem,isLevelShifter,isPhysOnly,isSpareGate,maskShift,name,orient,pHaloBot,pHaloBox,pHaloBox_area,pHaloBox_ll,pHaloBox_llx,pHaloBox_lly,pHaloBox_size,pHaloBox_sizex,pHaloBox_sizey,pHaloBox_ur,pHaloBox_urx,pHaloBox_ury,pHaloLeft,pHaloRight,pHaloTop,pStatus,pd,pgCellTerms,pgTermNets,props,pt,pt_x,pt_y,rHaloBotLayer,rHaloSideSize,rHaloTopLayer
hInst: inst的parent module
instTerms: instance的pin
pHalo*：placement halo相關的東西
pgCellTerms：cell的pg term
pgTermNets：cell pg term所連的net
rHalo*：route halo相關的東西
instTerm
instance的pin
Parent Object
hNet, inst, net
Child Object
cellTerm,hNet,inst,isInput,isOutput,isSpecial,isTieHi,isTieLo,layer,name,net,pd,pt,pt_x,pt_y
cellTerm: cell的term
hNet: 連接該inst term的hierarchical net，對圖上紅圈框住的net就是hNet,
整條到top level的net就是net,是flatten的
io
io pad或者io pin的信息
Parent Object
fPlan
Child Object
area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,indent,inst,isAssigned,isCorner,isGapFixed,isGround,isOffsetFixed,isPower,name,offset,order,row,side,spacing,term,type
Layer
tech lef中layer的信息
Parent Object
antennaData, busGuide, cellDensity, fPlan, hInstTerm, head, inst, instTerm, layerRule, layerShape, marker, net, pWire, pinGuide, ptn, ptnPinBlkg, rBlkg, routeType, sWire, term, text, trackDef, vWire, via, viaRuleGenerate, wire
Child Object
antennaModel1,antennaModel2,antennaModel3,antennaModel4,area,backside,densityStepX,densityStepY,densityWindowX,densityWindowY,direction,extName,fillActiveSpacing,fillGapSpacing,maxDensity,maxWidth,mfgGrid,minDensity,minSpacing,minWidth,name,num,numMasks,offsetX,offsetY,pitchX,pitchY,props,spacingTables,type,width,wrongwayMinWidth,wrongwaySpacing,wrongwayWidth
這些就是tech lef中關於layer的信息，以及一些routing信息，太復雜了，暫時就不介紹了，不懂的名詞可以查閱下LEF menu.
layerRule
layer中關於rule的信息
Parent Object
rule
Child Object
layer,spacing,width
layerShape
pin或者blockage在layer上的shape
Parent Object
libCell, pin
Child Object
isExceptPGNet，layer，shapes，spacing
libCell
library中的cell信息
Parent Object
bump, head, inst, term
Child Object
abstractLib,abstractView,allObstructions,baseClass,cellDensities,eeqCells,foreigns,isAbstractDefined,isBuffer,isDontTouch,isDontUse,isInverter,isIsolation,isLevelShifter,isSequential,isTimeDefined,isVDDOnBottom,layerShapeObstructions,layoutLib,layoutView,lefFileName,leftEdgeName,leftPadding,name,numBidirs,numInputs,numOutputs,numPGTerms,numPhysTerms,numRefs,numTerms,pgTerms,physTerms,props,rightEdgeName,rightPadding,shapeViaObstructions,site,size,size_x,size_y,subClass,symmetryR90,symmetryX,symmetryY,terms
baseClass：返回design中的cell的class信息,一般有這些block, core, corner, cover, none, pad
[DEV]innovus 14> dbGet head.libCells.baseClass -u
pad block core corner
eeqCells：官方解釋是與電氣相關的cell
foreigns: cell原點的坐標與參考原點之間的偏移量
numBidirs：cell的bidirectional term,雙向term
numPhysTerms: cell的physical term,就是沒有用到的term數量
numRefs: library中每個cell被例化的次數
physTerms：就是指沒有用到的term
subClass: 子類型，LEF中關於macro更詳細的分類，比如說：block, blockBlackBox, blockRing, blockSoft, core, coreAntenna...具體內容如下圖所示：紅框框就是baseClass，藍框框就是subClass
marker
DRC marker的信息
Parent Object
topCell
Child Object
area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,layer,message,messageId,originator,polyPts,subType,type,userOriginator,userSubType,userType
大部分都和rule有關，平時用到也不多。
net
net信息
Parent Object
bump, bus, hInstTerm, hNet, hTerm, inst, instTerm, netGroup, pWire, pd, routeType, sViaInst, sWire, term, topCell, vWire, viaInst, wire
Child Object
allTerms,area,avoidDetour,botMaskLayerNum,botOneSideSpacingLayerNum,bottomPreferredLayer,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,bus,hNets,instTerms,isAnalog,isCTSClock,isClock,isDontTouch,isExternal,isFixedBump,isGnd,isMixedSignal,isPatternTrunk,isPhysOnly,isPwr,isPwrOrGnd,isScanNet,isTrialRouted,mask,maxVoltage,minVoltage,name,numInputTerms,numOutputTerms,numTerms,pWires,preferredExtraSpace,props,rule,sVias,sWires,shieldNets,siPostRouteRepair,skipAntennaRepair,skipRouting,terms,topMaskLayerNum,topOneSideSpacingLayerNum,topPreferredLayer,vias,weight,wires
allTerms: design中所有的inst term以及top level io term
isIlmNet: 這條net是不是連着ilm module
maxVoltage: 這條net的最大電壓
minVoltage：這條net的最小電壓
pWires: patch wire
sVias: special via
sWires: special wire
vias: regular via
wires: regular wire
weight: net weight, 指net的權重，可以參考下文
剩余的大部分都是routing本身的屬性，和dbGet並無太多關系
netGroup
net group信息
Parent Object
busGuide, fPlan, pinGuide
Child Object
excludeNet,isCompact,isGuided,isOptimizeOrder,isSpread,keepOutSpace,name,nets
pBlkg
placement blockage信息
Parent Object
fPlan
Child Object
area,attr,boxes,density,inst,isNoFlop,isPushdown,name,shapes,type
pd
power domain信息
Parent Object
group, inst, instTerm, term, topCell
Child Object
core2Bot,core2Left,core2Right,core2Top,extBot,extEdges,extLeft,extRight,extTop,gapBot,gapEdges,gapLeft,gapRight,gapTop,group,isAlwaysOn,isDefault,name
這里基本上就是low power的基本信息，這些內容和dbGet本身沒太大關系.
pin
lef中的port信息
Parent Object
term
Child Object
allShapes,class,layerShapeShapes,portNumber,shapeViaShapes
這里基本上就是lef中關於pin定義的那些physical信息
pinGroup
lef中的port信息
Parent Object
term
Child Object
allShapes,class,layerShapeShapes,portNumber,shapeViaShapes
這里基本上就是lef中關於pin定義的那些physical信息
pinGuide
pin guide信息
Parent Object
fPlan
Child Object
area,boxes,cell,layerPriority,layers,name,netGroup,pinGroup
ptn
ptn就是partition的信息
Parent Object
hInst, topCell
Child Object
cloneHInsts,cloneInsts,clones,coreSpacingBot,coreSpacingLeft,coreSpacingRight,coreSpacingTop,isBlackBox,isCommited,master,masterHInst,masterInst,minPitchBot,minPitchLeft,minPitchRight,minPitchTop,name,pHaloBot,pHaloLeft,pHaloRight,pHaloTop,pinLayersBot,pinLayersLeft,pinLayersRight,pinLayersTop,pinToCornerDist,rHaloBotLayer,rHaloSideSize,rHaloTopLayer,railWidth,reservedLayers,stdCellHeight
cloneHInsts: 如果partition還沒有commit,或者不是blackbox,返回clone hinsts
cloneInsts:如果partition已經commit或者是blackbox,返回clone insts
masterHInst: 如果partition還沒有commit,或者不是blackbox,返回master hinsts
masterInst: 如果partition已經commit或者是blackbox,返回master insts
ptnCell
ptn cell的信息
Parent Object
head, inst, pinGroup, term
Child Object
isVDDOnBottom,name,numBidirs,numInputs,numPGTerms,numPhysTerms,numRefs,numTerms,pgTerms,physTerms,pinToCornerDist,props,symmetryR90,symmetryX,symmetryY,terms
前文lib cell中有解釋
ptnPinBlkg
partition pin blockage信息
Parent Object
fPlan
Child Object
box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,layer,name
pWire
patch wire，補丁，在advance node中用做金屬，修補DRC使用
Parent Object
net
Child Object
box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,layer,mask,net,pt,pt_x,pt_y,rule,status
rBlkg
routing blockage信息
Parent Object
fPlan
Child Object
area,attr,boxes,designRuleWidth,inst,isExceptPGNet,isPGNetOnly,isPushdown,layer,name,shapes,spacing
resizeBlkg
size blockage信息
Parent Object
fPlan
Child Object
area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,isResizeable,name
row
row信息
Parent Object
fPlan
Child Object
area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,name,numX,numY,orient,site,stepX,stepY
shape
shape的一些信息
Parent Object
layerShape, pBlkg, rBlkg
Child Object
mask,path,poly,rect,rect_area,rect_ll,rect_llx,rect_lly,rect_size,rect_sizex,rect_sizey,rect_ur,rect_urx,rect_ury,type
shapeVia
via的形狀
Parent Object
libCell, pin
Child Object
botMask,botRects,cutMask,cutRects,pt,pt_x,pt_y,topMask,topRects,via
site
site的信息
Parent Object
fPlan, head, libCell, row
Child Object
class,name,size,size_x,size_y,symmetryR90,symmetryX,symmetryY
class：site的類別，一般包括core, pad
sVia
special via信息
Parent Object
net
Child Object
botMask,botRects,cutMask,cutRects,net,props,pt,pt_x,pt_y,shape,shieldNet,status,topMask,topRects,userClass,via
sWire
special wire信息
Parent Object
net
Child Object
area,beginExt,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,endExt,geomType,layer,mask,net,polyPts,props,pts,shape,shieldNet,status,userClass,width
term
top level io port信息
Parent Object
bump, bus, hInstTerm, hTerm, inst, instTerm, io, libCell, net, pinGroup, ptnCell, topCell
Child Object
antennas,bus,cell,depth,groundSensitivity,inOutDir,isClk,isInput,isOutput,isScanClk,isSpecial,isTieHi,isTieLo,layer,mustJoin,name,net,orient,pStatus,pd,pins,props,pt,pt_x,pt_y,rule,shape,side,supplySensitivity,type,width
topCell
top cell下面的信息
Parent Object
fPlan, head, pinGroup, pinGuide, term
Child Object
bumps,designLib,designView,fPlan,hInst,insts,isProtoModelCommitted,isProtoModelSpecified,isVDDOnBottom,markers,name,nets,numBidirs,numInputs,numInsts,numNets,numPGTerms,numPhysInsts,numPhysNets,numPhysTerms,numTerms,pds,pgTerms,physInsts,physNets,physTerms,pinToCornerDist,pkgComponents,pkgObjects,props,ptns,statusClockSynthesized,statusDetailRouted,statusGRouted,statusIoPlaced,statusPlaced,statusPowerAnalyzed,statusRCExtracted,statusRouted,statusScanOpted,symmetryR90,symmetryX,symmetryY,terms,texts
trackDef
Def中關於track的信息
Parent Object
fPlan
Child Object
dir,isSameMask,layers,mask,numTracks,start,step
via
regular via的信息
Parent Object
head, rule, sVia, shapeVia, via
Child Object
botMask,botRects,cutMask,cutRects,net,pt,pt_x,pt_y,rule,status,topMask,topRects,via
wire
regular wire的信息
Parent Object
net
Child Object
area,beginExt,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,direction,endExt,layer,length,mask,net,pts,rule,status,width
關鍵的那幾個:term,hterm,hinstTerm,net,hNet,inst,hinst區別就行，剩余的大都是physical本身的一些概念