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For high-volume products,
where unit cost is crucial, SEI provides COT (Customer-Owned
Tooling) design services, integrating custom SRAM, ROM and
analog blocks designed at SEI with random logic arrays developed
using ASIC methodologies.
SEI's
foundry expertise and understanding of the underlying semiconductor process technology
means that we can help the customer with foundry and technology selection. We
have direct experience with a large number of foundries and can advise customers
on the relative merits of each for their particular application.
Our
proprietary library generation technology allows us to quickly
generate design libraries for any given foundry and process
technology, including Verilog models, Synopsys synthesis
models, and layout. Alternatively, vendor-supplied or third
party libraries can be used if available.
Logic
blocks are designed using ASIC methodologies, coding in
HDL and synthesizing to gates which are then laid out using
SEI in-house place and route software or third party tools
from suppliers such as Cadence or Avant!

Custom
blocks such as RAM, ROM, or analog units, including IO cells
with particular drive or sense requirements, are designed
using custom circuit design methodologies and are laid out
using SEI's in-house layout tools.
The
final chip is hooked up and verified using Cadence Dracula
for LVS, DRC and ERC, converted to Calma (stream) format,
and taped out as GDS-II geometry tapes which interface directly
to the fab.
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