Cadence VIRTUOSO LAYOUT MIGRATE Datasheet - page 2
www.cadence.com
VIrTuoSo LAyouT MIgrATE
vIRTUOSO laYOUT
mIgRaTe
Virtuoso Layout Migrate enables fast
migration of a given design to new or
altered process geometry. Integrated
within the Virtuoso platform, Virtuoso
Layout Migrate provides hierarchical two-
dimensional optimization algorithms to
achieve significantly higher quality of
results (Qor) than traditional methods
using near-linear shrinks. Virtuoso Layout
Migrate is also a cost-effective solution
compared to a purely manual approach—
saving both time and labor. Structure
preservation and parameterized cell (Pcell)
substitution capabilities enhance produc-
tivity, while the menu-driven flow con-
figuration environment makes the setup
procedure straightforward and efficient.
BenefITS
•
rapid layout migration through support
of all types of layout hierarchy—typi-
cally resulting in an order-of-magnitude
productivity improvement over manual
efforts
•
Two-dimensional compaction that
produces high Qor as compared with
other solutions using one-dimensional
algorithms
•
Easy-to-use menu-driven setup and
configuration, allowing new users to
produce high-quality results within days
of installation
•
Support for complex design rules at 90
nanometers and beyond, targeted to
improve yield and circuit performance
•
Efficient engineering change order
(ECo) implementation
feaTUReS
faST hIeRaRchIcal and TWO-
dImenSIOnal cOmpacTIOn
Virtuoso Layout Migrate has been
architected from the ground up to handle
hierarchy directly—to enable rapid
migration of hierarchical layout such as
memories, custom datapath blocks, and
mixed-signal designs. The user provides
hierarchical gDS or Virtuoso data with a
target process technology as input, and
is returned an LVS/DrC-correct hierarchi-
cal gDS or Virtuoso layout. Abutment,
alignment, and pitch matching are all
handled implicitly with hierarchical optimi-
zation to improve ease of use and capacity
on hierarchical and arrayed designs
(see
Figure 2)
. Hierarchy-aware migration and
technology mapping of Pcell layout is also
fully supported
(see Figure 3)
.
All layout structure is preserved, including
connectivity, properties, ports, param-
eters, Pcells, multi-part paths (MPPs), and
symbolic contacts. This enables the layout
generated by Virtuoso Layout Migrate to
be linked with the schematic, rerouted
by the Virtuoso router, manually edited,
or modified using other layout functions.
optimal layout is achieved with native
support for two-dimensional rules such
as diagonal spacing, minimum area, 45˚
angles, common run, and end of line.
Virtuoso Layout Migrate is a production-
proven solution for advanced process
geometries requiring special design rules,
including preferred rules used for yield and
performance improvements
(see Figure 4)
.
eaSY-TO-USe menU-dRIven SeTUp
and flOW cOnfIgURaTIOn
Virtuoso Layout Migrate includes an
easy-to-use menu-driven setup and flow
configuration system in the familiar
Figure 3:
Fast and accurate layout migration with Pcell preservation, with an example of the Pcell map file
Figure 2:
Example of fast layout migration showing implicit handling of hierarchy and abutment
Runtime = 10 min.
Cadence 7105_Figure 2
0.18 hm
Source
Layout
90nm
Pcell view
of Layout
VIR
TUOSO LA
YOUT IMAGE
Cadence 7105_Figure 3