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# Layer Data Definition (Default Foundry) C_LAYER

### Symbol :

### Parameters :

> via_ol = Overlap for inter metal via
> cond_os = Oversize of metal layer 1 (cond)
> cond_wm = minimum width of metal layer 1 (cond)
> cond_sm = minimum slot of metal layer 1 (cond )
> cond2_os = Oversize of metal layer 2 (cond2)
> cond2_wm = minimum width of metal layer 2 (cond2)
> cond2_sm = minimum slot of metal layer 2 (cond2)
> resi_os = Oversize of resi-layer
> diel_os = Oversize of dielectric layer 1
> diel2_os = Oversize of dielectric layer 2

### Notes/Equations/References :

> 1. In this data item, the layer information of default foundry are stored. These data are used only for the layot generation and have therefore no effects on simulation results.
> 2. If only the DEFAULT foundry is available (standard packet of COPLAN for ADS), the only name for C_LAYER allowed is "C_LAYER_DEFAULT". Use of another name causes the simulator to abort!
> 3. via_ol is the minimum length of overlapping area for the connection of metal level 1 with metal level 2.
> 4. cond_os and cond2_os as well as diel_os and diel2_os are used for the generation of an oversized layout.
> 5. cond_wm and cond2_wm can be used for definition of minimum conductor size in metal level 1 and metal level 2 respectively.
> 6. cond_sm and cond2_sm can be used for definition of minimum slot size in metal level 1 and metal level 2 respectively
> 7. Following values could lead to an incorrect layout generation :

> via_ol > cap_l (see C_TECH)
> via_ol > res_l (see C_TECH)
> cond_wm < 2*|cond_os| if cond_os<0
> cond_sm < 2*cond_os if cond_os>0
> cond_wm < 2*|cond_os| if cond_os<0
> cond2_sm < 2*cond2_os if cond_os>0

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