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LOCAP

NAME

locap − mbk logical capacitor

DESCRIPTION

The locap is used to describe a logical capacitor. Please note, this description is different from the RCN description and has a different purpose: the created capacitor is a functional logical capacitor, not a parasitic capacitor. For the time being, only MIM (i.e. metal/metal) and POLY/NWELL capacitors type are supported.

The declarations needed to work on locap are available in the header file "/labo/include/mlo.h".

The following C structure supports the description of the logical capacitor :

typedef struct locap

{

struct locap

∗NEXT ;

struct locon

∗TCON ;

struct locon

∗BCON ;

char

∗NAME ;

double

CAPA ;

char

TYPE ;

struct ptype

∗USER ;

} locap_list

;

NEXT

Pointer to the next locap of the list.

TCON

Pointer to the tcon (top plate) connector of the capacitor. This connector is, of course unique. See locon(3) for details.

BCON

Pointer to the bcon (bottom plate) connector of the capacitor. This connector is, of course unique. See locon(3) for details.

NAME

Capacitor instance name

CAPA

Capacitance value

TYPE

Layer type of the capacitor. Two legal values are available :

CAPMIM

Metal/metal capacitor. The top plate and the bottom plate are in different metal layers.

CAPPNWELL

Poly/NWELL capacitor. The top plate layer is POLY, the bottom plate layer is NWELL. Note: this capacitor type is technological dependent and is not available for any technology.

USER

Pointer to a ptype list, see ptype(3) for details, that is a general purpose pointer used to share informations on the capacitor. This field is used with the LOCAP_INFO(3) ptype to store physical informations.

SEE ALSO

mbk(1), addlocap(3), getlocap(3), dellocap(3), setlocap(3), locon(3), lofig(3), ptype(3).

BUG REPORT

This tool is under development at the ASIM department of the LIP6 laboratory.
We need your feedback to improve documentation and tools.

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