LEGEND RELEASED AUTOMATIC MEMORY IP CHARACTERIZATION
SUNNYVALE, Calif.--- June 2000 --- Legend Design
Technology, Inc., a leading provider of IP characterization, and
critical-path circuit simulation for deep submicron IC designs,
announced today a new product called MemChar™ that addresses the
automatic memory IP characterization for system-on-chip (SOC)
designs. Unlike alternate methods, Legend's MemChar™ provides the
benefits of automation, higher accuracy and performances. The
process of MemChar™ is transparent, and can be repeated directly by
Memory IP users.
The MemChar™ program has been developed to automate all processes
in the Memory IP characterization flow efficiently, including the
simulations and optimizations. Although a memory compiler can
generate several tens of thousands of various instances, only one
instance is needed to set up the automatic characterization flow of
MemChar™. For all other configurations in this memory compiler, the
same 'setup' can be directly applied. The MemChar™ program has been
used very successfully for memory compiler development.
For high performance designs in areas of networking and
communication, MemChar™ is especially useful by its unique
capability of doing on-chip embedded memory characterization. Since
the input is the layout-extracted data of the 'exact' configuration,
the characterization results can directly reflect the `on-chip'
models, not through interpolated or extrapolated. Therefore, the
margins can be well controlled, and the system performance can be
The MemChar™ program consists of four modules:
1. Simulation Stimulus Generator
2. 'Critical-Path' Circuit
Builder: SpiceCut ™
3. Circuit Simulation and Optimization
4. Timing Database Generator
Based upon the parameter specifications from the data sheets,
MemChar™ can automatically generate the simulation stimulus and
controls. SpiceCut™ is used to generate the critical- path netlist
for the circuit reduction and RC reduction. And, Circuit Simulation
Manager such as HSPICE™ or PowerMill™ is called for running the
simulations automatically in 'sweep' loops or in 'optimization'
loops. The timing data is then obtained from the simulation results
and organized as the timing database for the models.
To better serve the design teams in different locations, MemChar™
engines provide on-chip characterization services through the
internet or intranet. MemChar™ has been set up for providing IC
designers 'white-box' timing models of on-chip embedded memories.
This 'two-way' usage can further enhance the design quality compared
to the 'one-way' with only 'black-box' model provided.
About Legend Design Technology
Legend Design Technology, Inc. is a leading provider of IP
characterization, and critical-path circuit simulation for deep
submicron IC designs. In addition to EDA products, Legend also
provides services such as memory IP characterization for high
performance designs. Currently, Legend has more than 40 customers
worldwide, including a number of first tier accounts. Legend is
located at Sunnyvale, California, with distributors in Japan and
Taiwan. Additional information about Legend is available at http://www.legenddesign.com/
Legend Design Technology, Inc.
(408) 720-9168 ext. 15
Fax: (408) 720-1732