how to create a basic technology file?

[jaylin]

cadence techpurposes

Hi guys,

I am a beginner for the layout, now I have a layout database *.sf from the foundry, I need to transform it into an layout library in the Virtuoso layout editer, I use the Import-->stream in, but I lack a techfile *.tf(I have no one in hand), so can anybody tell me how to create a basic techfile which contains what is important and neccesory.
Another question is that should the layer number in the technology file be the same as that in the DRC and LVS rule file?

Thanks a lot
Jay

 

[tarkyss]

techpurposes

you can modify the demo tf file by yourself ,it is not very diffucult. normally after layer number, grid and other necessory information are modified, the tf file can work
as for your second question
it is necessory, otherwise, the tool can not tell the layers.
but the layer name can be different,

 

[jaylin]

chnglyr

Would you pls tell me what is neccesory to change? following is the default.tf supplied by cadence.
layerDefinitions(

techPurposes(
;( PurposeName Purpose# Abbreviation )
;( ----------- -------- ------------ )
;User-Defined Purposes:
;System-Reserved Purposes:
( warning 234 wng )
( tool1 235 tl1 )
( tool0 236 tl0 )
( label 237 lbl )
( flight 238 flt )
( error 239 err )
( annotate 240 ant )
( drawing1 241 dr1 )
( drawing2 242 dr2 )
( drawing3 243 dr3 )
( drawing4 244 dr4 )
( drawing5 245 dr5 )
( drawing6 246 dr6 )
( drawing7 247 dr7 )
( drawing8 248 dr8 )
( drawing9 249 dr9 )
( boundary 250 bnd )
( pin 251 pin )
( drawing 252 drw )
( net 253 net )
( cell 254 cel )
) ;techPurposes

techLayers(
;( LayerName Layer# Abbreviation )
;( --------- ------ ------------ )
;User-Defined Layers:
;System-Reserved Layers:
( Unrouted 200 Unroute )
( Row 201 Row )
( Group 202 Group )
( Cannotoccupy 203 noOcupy )
( Canplace 204 Canplac )
( hardFence 205 hardFnc )
( softFence 206 softFnc )
( y0 207 y0 )
( y1 208 y1 )
( y2 209 y2 )
( y3 210 y3 )
( y4 211 y4 )
( y5 212 y5 )
( y6 213 y6 )
( y7 214 y7 )
( y8 215 y8 )
( y9 216 y9 )
( designFlow 217 dsnFlow )
( stretch 218 stretch )
( edgeLayer 219 edgeLyr )
( changedLayer 220 chngLyr )
( unset 221 unset )
( unknown 222 unknown )
( spike 223 spike )
( hiz 224 hiz )
( resist 225 resist )
( drive 226 drive )
( supply 227 supply )
( wire 228 wire )
( pin 229 pin )
( text 230 text )
( device 231 device )
( border 232 border )
( snap 233 snap )
( align 234 align )
( prBoundary 235 prBndry )
( instance 236 instnce )
( annotate 237 anotate )
( marker 238 marker )
( select 239 select )
( grid 251 grid )
( axis 252 axis )
( hilite 253 hilite )
( background 254 bkground )
) ;techLayers

techLayerPurposePriorities(
;layers are ordered from lowest to highest priority
;( LayerName Purpose )
;( --------- ------- )
( background drawing )
( grid drawing )
( grid drawing1 )
( annotate drawing )
( annotate drawing1 )
( annotate drawing2 )
( annotate drawing3 )
( annotate drawing4 )
( annotate drawing5 )
( annotate drawing6 )
( annotate drawing7 )
( annotate drawing8 )
( annotate drawing9 )
( instance drawing )
( instance label )
( prBoundary drawing )
( prBoundary boundary )
( prBoundary label )
( align drawing )
( hardFence drawing )
( softFence drawing )
( text drawing )
( text drawing1 )
( text drawing2 )
( border drawing )
( device drawing )
( device label )
( device drawing1 )
( device drawing2 )
( device annotate )
( wire drawing )
( wire label )
( wire flight )
( pin label )
( pin drawing )
( pin annotate )
( axis drawing )
( edgeLayer drawing )
( edgeLayer pin )
( snap drawing )
( stretch drawing )
( y0 drawing )
( y1 drawing )
( y2 drawing )
( y3 drawing )
( y4 drawing )
( y5 drawing )
( y6 drawing )
( y7 drawing )
( y8 drawing )
( y9 drawing )
( hilite drawing )
( hilite drawing1 )
( hilite drawing2 )
( hilite drawing3 )
( hilite drawing4 )
( hilite drawing5 )
( hilite drawing6 )
( hilite drawing7 )
( hilite drawing8 )
( hilite drawing9 )
( select drawing )
( drive drawing )
( hiz drawing )
( resist drawing )
( spike drawing )
( supply drawing )
( unknown drawing )
( unset drawing )
( designFlow drawing )
( designFlow drawing1 )
( designFlow drawing2 )
( designFlow drawing3 )
( designFlow drawing4 )
( designFlow drawing5 )
( designFlow drawing6 )
( designFlow drawing7 )
( designFlow drawing8 )
( designFlow drawing9 )
( changedLayer tool0 )
( changedLayer tool1 )
( marker warning )
( marker error )
( Row drawing )
( Row label )
( Group drawing )
( Group label )
( Cannotoccupy drawing )
( Cannotoccupy boundary )
( Canplace drawing )
( Unrouted drawing )
( Unrouted drawing1 )
( Unrouted drawing2 )
( Unrouted drawing3 )
( Unrouted drawing4 )
( Unrouted drawing5 )
( Unrouted drawing6 )
( Unrouted drawing7 )
( Unrouted drawing8 )
( Unrouted drawing9 )
) ;techLayerPurposePriorities

techDisplays(
;( LayerName Purpose Packet Vis Sel Con2ChgLy DrgEnbl Valid )
;( --------- ------- ------ --- --- --------- ------- ----- )
( background drawing background t nil t nil nil )
( grid drawing grid t nil t nil nil )
( grid drawing1 grid1 t nil t nil nil )
( annotate drawing annotate t t t t nil )
( annotate drawing1 annotate1 t t t t nil )
( annotate drawing2 annotate2 t t t t nil )
( annotate drawing3 annotate3 t t t t nil )
( annotate drawing4 annotate4 t t t t nil )
( annotate drawing5 annotate5 t t t t nil )
( annotate drawing6 annotate6 t t t t nil )
( annotate drawing7 annotate7 t t t t nil )
( annotate drawing8 annotate8 t t t t nil )
( annotate drawing9 annotate9 t t t t nil )
( instance drawing instance t t t t nil )
( instance label instanceLbl t t t t nil )
( prBoundary drawing prBoundary t t t t nil )
( prBoundary boundary prBoundaryBnd t t t t nil )
( prBoundary label prBoundaryLbl t t t t nil )
( align drawing defaultPacket t t t t nil )
( hardFence drawing hardFence t t t t nil )
( softFence drawing softFence t t t t nil )
( text drawing text t t t t nil )
( text drawing1 text1 t t t t nil )
( text drawing2 text2 t t t t nil )
( border drawing border t t t t nil )
( device drawing device t t t t nil )
( device label deviceLbl t t t t nil )
( device drawing1 device1 t t t t nil )
( device drawing2 device2 t t t t nil )
( device annotate deviceAnt t t t t nil )
( wire drawing wire t t t t nil )
( wire label wireLbl t t t t nil )
( wire flight wireFlt t t t t nil )
( pin label pinLbl t t t t nil )
( pin drawing pin t t t t nil )
( pin annotate pinAnt t t t t nil )
( axis drawing axis t nil t t nil )
( edgeLayer drawing edgeLayer t t t t nil )
( edgeLayer pin edgeLayerPin t t t t nil )
( snap drawing snap t t t t nil )
( stretch drawing stretch t t t t nil )
( y0 drawing y0 t t t t nil )
( y1 drawing y1 t t t t nil )
( y2 drawing y2 t t t t nil )
( y3 drawing y3 t t t t nil )
( y4 drawing y4 t t t t nil )
( y5 drawing y5 t t t t nil )
( y6 drawing y6 t t t t nil )
( y7 drawing y7 t t t t nil )
( y8 drawing y8 t t t t nil )
( y9 drawing y9 t t t t nil )
( hilite drawing hilite t t t t nil )
( hilite drawing1 hilite1 t t t t nil )
( hilite drawing2 hilite2 t t t t nil )
( hilite drawing3 hilite3 t t t t nil )
( hilite drawing4 hilite4 t t t t nil )
( hilite drawing5 hilite5 t t t t nil )
( hilite drawing6 hilite6 t t t t nil )
( hilite drawing7 hilite7 t t t t nil )
( hilite drawing8 hilite8 t t t t nil )
( hilite drawing9 hilite9 t t t t nil )
( select drawing select t t t t nil )
( drive drawing drive t t t t nil )
( hiz drawing hiz t t t t nil )
( resist drawing resist t t t t nil )
( spike drawing spike t t t t nil )
( supply drawing supply t t t t nil )
( unknown drawing unknown t t t t nil )
( unset drawing unset t t t t nil )
( designFlow drawing designFlow t t t nil nil )
( designFlow drawing1 designFlow1 t t t nil nil )
( designFlow drawing2 designFlow2 t t t nil nil )
( designFlow drawing3 designFlow3 t t t nil nil )
( designFlow drawing4 designFlow4 t t t nil nil )
( designFlow drawing5 designFlow5 t t t nil nil )
( designFlow drawing6 designFlow6 t t t nil nil )
( designFlow drawing7 designFlow7 t t t nil nil )
( designFlow drawing8 designFlow8 t t t nil nil )
( designFlow drawing9 designFlow9 t t t nil nil )
( changedLayer tool0 changedLayerTl0 nil nil t nil nil )
( changedLayer tool1 changedLayerTl1 nil nil t nil nil )
( marker warning markerWarn t t t t nil )
( marker error markerErr t t t t nil )
( Row drawing Row t t t t nil )
( Row label RowLbl t t t t nil )
( Group drawing Group t t t t nil )
( Group label GroupLbl t t t t nil )
( Cannotoccupy drawing Cannotoccupy t t t t nil )
( Cannotoccupy boundary CannotoccupyBnd t t t t nil )
( Canplace drawing Canplace t t t t nil )
( Unrouted drawing Unrouted t t t t nil )
( Unrouted drawing1 Unrouted1 t t t t nil )
( Unrouted drawing2 Unrouted2 t t t t nil )
( Unrouted drawing3 Unrouted3 t t t t nil )
( Unrouted drawing4 Unrouted4 t t t t nil )
( Unrouted drawing5 Unrouted5 t t t t nil )
( Unrouted drawing6 Unrouted6 t t t t nil )
( Unrouted drawing7 Unrouted7 t t t t nil )
( Unrouted drawing8 Unrouted8 t t t t nil )
( Unrouted drawing9 Unrouted9 t t t t nil )
) ;techDisplays

techLayerProperties(
;( PropName Layer1 [ Layer2 ] PropValue )
)

) ;layerDefinitions

Added after 4 minutes:

Can I get any layer information such as the layer number from the *.sf layout database?

Added after 1 hours 22 minutes:

How can I know the layer number from the *.sf supplied by the foundry?
Is it enough that I only write the layer definition? I mean whether the device definition, layer rules, physical rules, electrical rules are necessory?


Big thanks