Abstract: A rotary oscillator array (ROA) apparatus includes a plurality of rotary traveling wave oscillators (RTWOs) configured to generate a plurality of resonant clock signals. An RTWO of the plurality of RTWOs includes a plurality of inverter cells and a fractional divider. The inverter cells are coupled in parallel to each other between two metal interconnects. The fractional divider is coupled to the two metal interconnects. The fractional divider will output a resonant clock signal of the plurality of resonant clock signals based on a reset-out signal generated by a reset-out terminal of the RTWO.

Abstract: Various embodiments provide apparatuses, systems, and methods for resonant rotary clocking to generate synchronized clock signals. A base die may include a resonant ring structure to form a plurality of rotary traveling wave oscillators (RTWOs) coupled to one another in a rotary oscillator array (ROA). The ROA may provide synchronized clock signals at deterministic phase points that are tapped from the resonant ring structure. Multiple dies may be coupled to the base die (e.g., in a multi-die system) and may receive the tapped clock signals. Other embodiments may be described and claimed.

Abstract: Various embodiments provide apparatuses, systems, and methods for resonant rotary clocking for die-to-die (D2D) communication in a multi-die system. A base die may include a resonant ring structure to form a plurality of rotary traveling wave oscillators (RTWOs) coupled to one another in a rotary oscillator array (ROA). The ROA may provide synchronized clock signals at deterministic phase points that are tapped from the resonant ring structure. Multiple dies may be coupled to the base die and may receive the tapped clock signals from respective tap points. The clock signals may be used for die-to-die communication and/or other purposes. Other embodiments may be described and claimed.

Abstract: Structures having magnetic vias and backside power delivery are described. In an example, an integrated circuit structure includes a front-side structure including a device layer having a plurality of nanowire-based transistors, and a plurality of metallization layers above the nanowire-based or fin-based transistors of the device layer. One of the metallization layers includes one or more magnetic vias. A backside structure is below the nanowire-based or fin-based transistors of the device layer. The backside structure includes a ground metal line.

Abstract: Various embodiments provide apparatuses, systems, and methods for resonant rotary clocking to generate synchronized clock signals. A base die may include a resonant ring structure to form a plurality of rotary traveling wave oscillators (RTWOs) coupled to one another in a rotary oscillator array (ROA). The ROA may provide synchronized clock signals at deterministic phase points that are tapped from the resonant ring structure. Multiple dies may be coupled to the base die (e.g., in a multi-die system) and may receive the tapped clock signals. Other embodiments may be described and claimed.

Abstract: Modern integrated circuits have an increasing need for various levels of both supply voltage (V) and operating frequency (f) available at fine spatial and temporal granularity. This work introduces a solution that provides a number and quality of locally distributed V/f domains through FOPAC. Opportunistically sharing design resources and features between multi-phase voltage regulators (MPVRs) and resonant rotary clocks (ReRoCs) enabling i) the scalability to hundreds of domains, ii) fast switching times for both voltage and frequency, leading to temporal flexibility, and iii) locally distributed designs, leading to spatial flexibility.

Abstract: Modern integrated circuits have an increasing need for various levels of both supply voltage (V) and operating frequency (f) available at fine spatial and temporal granularity. This work introduces a solution that provides a number and quality of locally distributed V/f domains through FOPAC. Opportunistically sharing design resources and features between multi-phase voltage regulators (MPVRs) and resonant rotary clocks (ReRoCs) enabling i) the scalability to hundreds of domains, ii) fast switching times for both voltage and frequency, leading to temporal flexibility, and iii) locally distributed designs, leading to spatial flexibility.