set_tech_references

set_tech_references
-tech_lib s_techName 
{-clear | -ref_tech_libs {s_techName…}} 

Description

Establishes or resets references from one technology library to other technology databases.

OpenAccess allows for libraries to refer to technology information that exists in one or more technology libraries. For example, a base technology library could define a process with seven interconnect layers and another library could refer to that base technology information and add three more interconnect layers for a total of ten layers. This is known as an incremental technology library.

Use -ref_tech_libs to establish references for an incremental technology database. The technology databases must be defined in the lib.defs file.

Use -clear to reset an incremental database by removing all references from the base technology library.

Use tech_info to verify the current technology information.

Establishing technology references may generate warnings or errors if duplicate information exists (for example, when a metal layer is defined in more than one library).

Arguments

-clear	Removes all references from the base technology database.
-ref_tech_libs {s_techName…}
	Establishes references from the base technology library to the technology databases in the list.
-tech_lib s_techName	Specifies the name of the base technology library.

Examples

The following commands remove all references from the techLib database, then establishes a reference for the sq1 technology database to techLib.

set_tech_references -tech_lib techLib -clear
set_tech_references -tech_lib techLib -ref_tech_libs { sq1 }

Related Topics

Technology Commands

tech_info

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