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Contenuto archiviato il 2024-04-15

Advanced Integrated Circuit Design Aids

Obiettivo

The objective of the AIDAproject was to master the complexity of VLSI chips (more than onemillion transistors within the next few years) by obtaining a drastic improvement in design methods. CAD tools, new methods and concepts were defined, proved on ex perimental software, and finally developed into industrial tools integrated into the existing CAD environments of the partners. AIDA explored the application of modern programming techniques and knowledgebased engineering to CAD tool development. It cons titutes a design assistant that proposes solutions rather than merely records and validates the designer's ideas. This allows the designer to apply his creativity where it is most efficient, leading to improved design quality. Modern programming techniques were applied, such asthose developed for expert systems to VLSICAD tools. The potential contribution of these techniques is twofold:
-the basic techniques can be used to make new tools much more efficient than classical ones
-the basic integrated circuit design knowledge can be recorded on the machine and used by "expert" modules under the control of a system designer.
The sevenwork packages undertaken show the full span of problems tackled by the project: Data Management, Specification, Synthesis, Layout, Testing, Man-Machine Interface and Evaluation.
The objective of the AIDA project was to master the complexity of very large scale integration (VLSI) chips (more than one million transistors) by obtaining a drastic improvement in design methods. Computer aided design (CAD) tools, new methods and concepts were defined, proved on experimental software and finally developed into industrial tools integrated into the existing CAD environments. AIDA explored the application of modern programming techniques and knowledge based engineering to CAD tool development.
Modern programming techniques were applied, such as those developed for expert systems, to VLSI-CAD tools. The potential contribution of these techniques is 2-fold:
the basic techniques can be used to make new tools much more efficient than classical ones;
the basic integrated circuit design knowledge can be recorded on the machine and used by expert modules under the control of a system designer.
The 7 work packages undertaken show the full span of problems tackled by the project:
data management;
specification;
synthesis;
layout;
testing;
man machine interface;
evaluation.
The operating environment is as follows :
Computer aided design (CAD) and design methodologies
The project started with an indepth study and refinement of the requirements catalogues in each work area and the establishment of priorities in the different approaches towards implementation. In data management, particularly, the large volume and compl ex structure of the design data, together with the extensive range of necessary design tools and all their varied interactions, means that the requirements of CAD systems for VLSI design are probably among the most challenging of all database applications. Here the partners concentrated on aspects of portability, exchange formats and interfaces and data security concepts, especially for CAD systems distributed over a range of interconnected computers.
During its second year the project entered the implementation phase. During the third year most of the first prototype tools were produced. Many of these were demonstrated at the exhibition during the 1989ESPRITConference.
The final year of the project saw the completion of the implementation and integration of the tools. Early exploitation in industrial designs were exhibited at the 1990 ESPRIT Conference.
Prompted by the need to share design data and tools between the three corporate databases, the project evolved an internal standard for the presentation of conceptual data models. This development has been taken into account in the work on conceptual models in the ECIP project. In the last year of the project the software bridges between the three CAD systems were implemented.
Exploitation
All three partners have a large existing investment in CAD systems in-house. The project has already had a significant impact on the ability of these companies to design complex chips with several million transistors. Furthermore, the partners are committed to marketing the results both as standalone tools and as integrated systems, thus making the results available to a much wider community. AIDA should also prove a useful test-bed for the proposed standards emerging from the ECIPproject (number 2072).Siemens-Nixdorf-Informations Systems is now marketing the CALANY floorplanner tool and the SMILE digital simulator resulting from AIDA as part of its SIGRAPH-EL CAD system. CALANY gives cost improvements resulting from a reduction of 50% in total block area and performance improvements of up to 35% in total wire length.

Argomento(i)

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Invito a presentare proposte

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Meccanismo di finanziamento

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Coordinatore

Siemens Nixdorf Informationssysteme AG
Contributo UE
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Indirizzo
Otto-Hahn-Ring 6
81739 München
Germania

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Partecipanti (2)