IST-2001-34058
 

D1: End users requirements

D3: Project presentation

D4: Interface formation to the CAD environment

CODESTAR

Compact modeling of on-chip passive structures at high frequencies

Final Report

Dissemination

LMN

MAGWEL

austriamicrosystems

A critical part of a passive on-chip design is submitted to a detailed analysis by the CODESTAR-code. 

The first part of the project deals with this detailed analysis of the critical structure using an electromagnetic field solver. Three types of field solvers are considered and compared, being the finite-difference-time-domain solver, the finite-integration solver and a recently developed lattice-gauge solver. The outcome of the field solvers are a full net list including the net list parameters. 
In general, this net list will be too large to be useful for inclusion in the design database and therefore a systematic reduction of the net list must be carried out i.e. application of reduced-order modelling (ROM). After having obtained a sufficiently compact equivalent lumped-element model (using original and efficient ROM techniques), the result is inserted back into the full design scheme and the interconnect design cycle will be continued. The emphasis of this work will be on the development of new techniques like the Laguerre-SVD and the two-step Lanczos technique and their connection with the different field solving techniques.
Parallel with this code development process, dedicated test structures are designed and evaluated to validate the CODESTAR-code. The test-cases will attempt to capture the complexity of realistic interconnect structures, will highlight the limits of present CAD tools and allow to assess the enhancements brought by the new tool created in this project.

 The resulting software will be used on a day-to-day basis at all partner sites. The research results will be disseminated in the academic community through workshops, conferences, demonstrators. All patent-sensitive technology will be protected. The industrial interest for the resulting CODESTAR-code is evaluated and a technological implementation plan is created.