---
name: "GENLIB_LOCAP"
section: "3"
platform: "linux"
package: "alliance"
version: "5.1.1-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/GENLIB_LOCAP"
---

# GENLIB\_LOCAP(3)

add a logical capacitor to the current netlist figure

## NAME

GENLIB\_LOCAP - add a logical capacitor to the current netlist figure

## SYNOPSYS

```
#include <genlib.h>
void GENLIB_LOCAP(type,capa,tcon,bcon,name)
char type ;
double capa ;
char ∗tcon, ∗bcon ;
char ∗name ;
```

## PARAMETERS

- *type*

  Type of the capacitor to be created in the current figure

- *capa*

  Capacitance value.

- *tcon, bcon*

  Name of the signals on which the given capacitor connectors are to be linked. tcon is the top plate, bcon is the bottom plate.

- *name*

  Capacitor name. The unicity of the name is not checked.

## DESCRIPTION

**LOCAP** adds a logical capacitor to the current working figure. This capacitor has each of its pin logicaly linked to the adequat signal given as parameter. The *type* attribut may take the following values:

- **CAPMIM**

  for a MIM (metal/metal) type capacitor. The top plate (tcon) and the bottom plate (bcon) layers are different metal layers.

- **CAPPNWELL**

  for a POLY/NWELL type capacitor. The top plate layer is POLY, the bottom plate is NWELL. Please note: this feature is not available in any technology.

## ERROR

**"GENLIB\_LOCAP impossible : missing GENLIB\_DEF\_LOFIG"**

No figure has been yet specified by a call to **DEF\_LOFIG**. So it isn't possible to add anything. you must call **DEF\_LOFIG** before any other netlist call.

## EXAMPLE

```
#include <genlib.h>
int main(int argc,char ∗argv[])
{
  /∗ Create a figure to work on, a parallel capacitor ∗/
  GENLIB_DEF_LOFIG("parallel_cap") ;
  /∗ Define interface ∗/
  GENLIB_LOCON("i",IN,"input") ;
  GENLIB_LOCON("f",OUT,"output") ;
  /∗ Add capacitors ∗/
  GENLIB_LOCAP(CAPMIM,5.1,"input","output","cap1") ;
  GENLIB_LOCAP(CAPMIM,5.2,"input","output","cap2") ;
  /∗ Save all that on disk ∗/
  GENLIB_SAVE_LOFIG() ;
  return 0 ;
}
```

## SEE ALSO

[**genlib**(1)](/genlib/1.md), [**GENLIB\_BUS**(3)](/GENLIB_BUS/3.md), [**GENLIB\_ELM**(3)](/GENLIB_ELM/3.md), [**GENLIB\_LOINS**(3)](/GENLIB_LOINS/3.md), [**GENLIB\_LOCON**(3)](/GENLIB_LOCON/3.md).