Blaze MO equips chip designers with the ability to get the most
out of 90nm and below process technologies. With Blaze MO, designers
drive their power and performance requirements into the manufacturing
flow, effectively “turbo charging” the manufacturing
process. Blaze enhanced designs are faster, less leaky and have
better parametric yield.
Blaze MO enables designers to:
• Minimize leakage power
• Improve timing margin
• Increase parametric yield
Blaze MO performs a comprehensive power and timing optimization
of a finished design just prior to the handoff to manufacturing.
No changes to any of the design layers are made during this optimization.
Instead, Blaze MO outputs an annotation layer in the handoff GDSII
database that gives detailed guidance to the OPC flow used in manufacturing.
Blaze MO annotations in the design are used in manufacturing to
guide the OPC process to a solution that is optimized to meet power
and timing constraints. In contrast to the design-oblivious OPC
flow that has been used in the past, with Blaze MO every physical
feature is fabricated in the way that best supports the design
objectives.
Reduced Leakage Power and Improved Timing
Leakage power is especially sensitive to gate length variation;
it increases exponentially with decreased gate length. Blaze MO
optimizes designs by making small (≤3nm per edge) adjustments
to individual gate lengths. This is a powerful technique that results
in leakage reduction of 20% or more for typical 90nm designs that
are already heavily optimized using multi-Vt libraries, multiple
drive strengths, and low-leakage processes.
Blaze MO also improves timing margin by controlling gate length
based on timing criticality – slightly increasing gate length
for hold-critical paths and slightly decreasing it for setup-critical
paths. Just as with the biases for leakage, these changes are within
the allowed range for the process and are achieved by providing
specific guidance to the manufacturing OPC flow.
Design Flow Integration
Blaze MO is built on the Open Access database. It integrates easily
into existing design flows from Cadence, Synopsys and Magma using
industry standard file formats, including SDC, Liberty, Verilog,
LEF/DEF, DSPF/SPEF, and GDSII. Blaze MO annotated GDSII output
can be used to drive any commercial OPC tool.
Blaze
MO fits into the design flow directly before handoff to manufacturing. |
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Users
interact with Blaze MO through Tcl scripts or the graphical
user interface. |