API reference - Class DeviceExtractorBJT3Transistor

Notation used in Ruby API documentation

Module: db

Description: A device extractor for a bipolar transistor (BJT)

Class hierarchy: DeviceExtractorBJT3Transistor » DeviceExtractorBase

This class supplies the generic extractor for a bipolar transistor device.

Extraction of vertical and lateral transistors is supported through a generic geometry model: The basic area is the base area. A marker shape must be provided for this area. The emitter of the transistor is defined by emitter layer shapes inside the base area. Multiple emitter shapes can be present. In this case, multiple transistor devices sharing the same base and collector are generated. Finally, a collector layer can be given. If non-empty, the parts inside the base region will define the collector terminals. If empty, the collector is formed by the substrate. In this case, the base region will be output to the 'tC' terminal output layer. This layer then needs to be connected to a global net to form the net connection.

The device class produced by this extractor is DeviceClassBJT3Transistor. The extractor delivers these parameters:

The device layer names are:

The terminals are output on these layers:

This class is a closed one and methods cannot be reimplemented. To reimplement specific methods, see DeviceExtractor.

This class has been introduced in version 0.26.

Public constructors

new DeviceExtractorBJT3Transistor ptrnew(string name,
DeviceClassFactory ptr factory = none)
Creates a new device extractor with the given name

Public methods

void_createEnsures the C++ object is created
void_destroyExplicitly destroys the object
[const]bool_destroyed?Returns a value indicating whether the object was already destroyed
[const]bool_is_const_object?Returns a value indicating whether the reference is a const reference
void_manageMarks the object as managed by the script side.
void_unmanageMarks the object as no longer owned by the script side.

Detailed description

_create

Signature: void _create

Description: Ensures the C++ object is created

Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created.

_destroy

Signature: void _destroy

Description: Explicitly destroys the object

Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing.

_destroyed?

Signature: [const] bool _destroyed?

Description: Returns a value indicating whether the object was already destroyed

This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself.

_is_const_object?

Signature: [const] bool _is_const_object?

Description: Returns a value indicating whether the reference is a const reference

This method returns true, if self is a const reference. In that case, only const methods may be called on self.

_manage

Signature: void _manage

Description: Marks the object as managed by the script side.

After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required.

Usually it's not required to call this method. It has been introduced in version 0.24.

_unmanage

Signature: void _unmanage

Description: Marks the object as no longer owned by the script side.

Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur.

Usually it's not required to call this method. It has been introduced in version 0.24.

new

Signature: [static] new DeviceExtractorBJT3Transistor ptr new (string name, DeviceClassFactory ptr factory = none)

Description: Creates a new device extractor with the given name

For the 'factory' parameter see DeviceClassFactory. It has been added in version 0.27.3.

Python specific notes:
This method is the default initializer of the object