Cadence Design Systems, Inc.

Monterey Design Systems, Inc.

Jon Frankle

Akira Fujimura

Etienne Jacques

Asmus Hetzel

Anish Malhotra

Heath Feather

Roger King

David S Harrison

Alexandre Matveev

Ara Markosian

Yaacov (Jacob) Greidinger

Some embodiments of the invention provide a Local Preferred Direction (LPD) wiring model for use with one or more EDA tools (such as placing, routing, etc). An LPD wiring model allows at least one wiring layer to have a set of regions that each have a different preferred direction than the particular wiring layer. In addition, each region has a local preferred direction that differs from the local preferred direction of at least one other region in the set. Furthermore, at least two regions have two different polygonal shapes and no region in the set encompasses another region in the set. Some embodiments also provide a Graphical User Interface (GUI) that facilitates a visual presentation of an LPD design layout and provides tools to create and manipulate LPD regions in a design layout.

Local preferred direction architecture

Local preferred direction architecture, tools, and apparatus

An electronic computer aided design system provides for automated operation of a plurality of design tools to produce multiply design solutions to an initial circuit layout. Through the user entry of relative weights for: power, timing and area, different solutions to an initial layout can be generated exhibiting the requested balance of improvements over the original layout. A novel parts placement process is disclosed which prioritizes the reconfiguration of the initial design in a manner which assures that the multiple solutions will be generated which exhibit improved performance over the original layout in accordance with the priorities established by the user.

Method and apparatus for providing multiple electronic design solutions

Growing community of inventors

Los Gatos, CA, United States of America

Jon Frankle