Design flow (EDA)

Design flows are the explicit combination of electronic design automation tools to accomplish the design of an integrated circuit. Moore's law has driven the entire IC implementation RTL to GDSII design flows from one which uses primarily stand-alone synthesis, placement, and routing algorithms to an integrated construction and analysis flows for design closure. The challenges of rising interconnect delay led to a new way of thinking about and integrating design closure tools.

The RTL to GDSII flow underwent significant changes from 1980 through 2005. The continued scaling of CMOS technologies significantly changed the objectives of the various design steps. The lack of good predictors for delay has led to significant changes in recent design flows. New scaling challenges such as leakage power, variability, and reliability will continue to require significant changes to the design closure process in the future. Many factors describe what drove the design flow from a set of separate design steps to a fully integrated approach, and what further changes are coming to address the latest challenges. In his keynote at the 40th Design Automation Conference entitled The Tides of EDA, Alberto Sangiovanni-Vincentelli distinguished three periods of EDA:

The Age of Invention: During the invention era, routing, placement, static timing analysis and logic synthesis were invented.
The Age of Implementation: In the age of implementation, these steps were drastically improved by designing sophisticated data structures and advanced algorithms. This allowed the tools in each of these design steps to keep pace with the rapidly increasing design sizes. However, due to the lack of good predictive cost functions, it became impossible to execute a design flow by a set of discrete steps, no matter how efficiently each of the steps was implemented.
The Age of Integration: This led to the age of integration where most of the design steps are performed in an integrated environment, driven by a set of incremental cost analyzers.

References

Electronic Design Automation For Integrated Circuits Handbook, by Lavagno, Martin, and Scheffer, ISBN 0-8493-3096-3 A survey of the field, from which this summary was derived, with permission.

Design

Outline
Portal
Designer

Disciplines

Communication design	Advertising Book design Corporate design Exhibit design Film title design Graphic design Environmental Motion Postage stamp design Print design Illustration Information design Instructional design News design Photography Retail design Signage / Traffic sign design Typography / Type design Video design Visual merchandising

Environmental design	Architecture Architectural lighting design Building design Passive solar Ecological design Environmental impact design Garden design Computer-aided Healthy community design Hotel design Interior architecture Interior design EID Keyline design Landscape architecture Sustainable Landscape design Spatial design Transition design Urban design

Industrial design	Automotive design Automotive suspension design CMF design Corrugated box design Electric guitar design Furniture design Sustainable Hardware interface design Motorcycle design Packaging and labeling Photographic lens design Product design Production design Sensory design Service design

Interaction design	Experience design EED Game design Level design Video game design Hardware interface design Icon design Immersive design Information design Sonic interaction design User experience design User interface design Web design

Other applied arts	Public art design Ceramic / glass design Fashion design Costume design Jewelry design Floral design Game art design Property design Scenic design Sound design Stage/set lighting design Textile design

Other design & engineering	Algorithm design Boiler design Conceptual design Database design Drug design Electrical system design Experimental design Filter design Job design Integrated circuit design Circuit design Physical design Power network design Nuclear weapon design Nucleic acid design Organization design Process design Processor design Protein design Research design Social design Software design Spacecraft design Strategic design Systems design

Approaches

Tools
Intellectual property
Organizations
Awards

Tools	AAD Architectural model Blueprint Comprehensive layout CAD CAID Virtual home design software CAutoD Design quality indicator Electronic design automation Flowchart Mockup Product design specification Prototype Sketch Storyboard Technical drawing Web design program Website wireframe

Intellectual property	Community design Design around Design patent Geschmacksmuster Industrial design rights European Union

Organizations	AIGA Chartered Society of Designers Design and Industries Association Design Council International Forum Design The Design Society Design Research Society

Awards	European Design Award German Design Award Good Design Award (Chicago) Good Design Award (Japan) Graphex IF product design award James Dyson Award Prince Philip Designers Prize

Design flow (EDA)

See also

References