Milpitas, Calif.--July 27, 1998--Sagantec (Milpitas) began shipping the latest version of Design Rule Enforcement and Migration (DREAM), physical design migration software that enables the reuse and optimization of silicon IP for deep-submicron design.
The new release of DREAM offers improved speed performance while decreasing setup and overall migration time. It includes a new device resizing feature to straighten transistors for more optimized designs. DREAM now handles memory blocks of more than one million transistors, up from 400,000 transistor blocks.
The software is employed for rapid reuse and optimization of cells, memories, blocks, and now full chips from one process design rule to another. It is used to migrate a physical layout design from one process technology to another, adapting it to new, usually smaller, process design rules. It works by picking up individual edges in polygons and moving them closer together until constraints, either from a design-rule file or from a customer constraint list, are about to be violated. The output is a new GDS-II file conforming to new design rules without making functional or topological changes to the design.
New functionality has been added to DREAM for better handling of memories, accelerated migration, and device resizing. A new hierarchy extraction feature easily migrates larger memory structures, and handles memory blocks of more than one million transistors. An improved wire length optimizer offers faster run times and decreases migration time by 40 percent. New, faster layer arithmetic makes setting up the migration flow easier, accelerating run time. It also allows hierarchical layer arithmetic.
A new wide metal resizer offers more flexible and fail-safe wide metal resizing, and new device sizing supports many more device types. A keep-out area feature new to DREAM allows for easier migration setup for designs where part of the layout should not be touched. The gate straightener provides for more drastic changes in gate sizes and is beneficial for use with gate-resizing tools.
A new layout viewer offers 2X faster viewing and a fully interruptible mode has fill patterns for easy viewing.
DREAM is priced from $175,000 and is available for Sun Microsystems Sparcstation running SunOS, Sun Ultra running Solaris, and HP 9000/700 running UX operating systems.
558 Valley Way
Milpitas, Calif., 95035
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