Teilprojekt A07: Entwurf integrierter Breitbandschaltungen für energieadaptive optische Kommunikationsverbindungen zwischen Chips auf der Leiterplatte
In A07 werden kompakte, schnelle, energie-adaptive und -effiziente integrierte Schaltungen für optische Leiterplattenverbindungen bis zu 100 Gbit/s entworfen. Dies beinhaltet, teilweise mit den optischen Komponenten kointegrierte, Laser- und Modulatortreiber, Transimpedanzverstärker sowie Takt-/Datenrückgewinnung. Es kommen mehrstufige Modulationsformen und Vorverzerrung/ Nachentzerrung sowie die schnellsten verfügbaren Halbleitertechnologien, neuartige Konzepte und Strukturen zum Bandbreiten-Peaking, zur Spannungsvervielfachung und zu vertikalen Induktivitäten zum Einsatz.
Rolle innerhalb des SFB 912
The interaction between the projects A07 (Ellinger/Wolter) and A04 (Nagel/Müller) consists of exchanging system requirements, link budget constraints and simulation models. Project A04 (Nagel/Müller) is responsible for specifying link parameters in terms of data rates, energy constraints and load conditions, whereas project A07 (Ellinger/Wolter) delivers precise link models of the optical connections for the simulation and benchmarking environment.
Within this context, the projects A07 (Ellinger/Wolter) and A03 (Jorswieck) cooperate similarly. Project A03 (Jorswieck) is in charge of specifying the link parameters of the optical onboard communication with respect to optimum network coding design. On the contrary, project A07 (Ellinger/Wolter) determines precise link models, which can be incorporated in network graph approach of A03 (Jorswieck).
Projects A07 (Ellinger/Wolter) and A05 (Plettemeier) cooperate in terms of assembling, packaging and interconnection modeling. Both projects demand for precise models of device parasitics and interconnects, and advanced assembly is required for low losses. Simulation tools and results are shared among both projects.
Projects A07 (Ellinger/Wolter) and A06 (Schröter) exchange results regarding precise models of the used IC technology. For circuit optimization, e.g. operation at low collector-emitter voltages, precise RF HBT models are investigated by A06 (Schröter) for low-voltage and high-current/high-power applications. In turn, A07 (Ellinger/Wolter) provides feedback on the impact of important physical effects and the technology selection on circuit performance and limitations by measurements.
Mitarbeiter
Principal Investigator
Postdoc
PhD Students
| Project | Project | Comment | |
|---|---|---|---|
| A07 | -> | A03 | Investigation of channel models; definition of link budget, optimum link parameters/configuration with respect to actual traffic load |
| A07 | -> | A04 | Load and traffic requirements; analysis of optimum energy scaling levels; performance parameters and link model for system simulation |
| A07 | -> | A05 | Investigation of packaging and assembling; modeling of interconnects;field simulations of wirebonds/ flip-chip |
| A07 | -> | A06 | Modeling of passive structures and parasitics; precise, low voltage and high current/power-density RF models; verification of models |