Abstract: A circuit package includes a central chip and multiple input/output (IO) chips disposed along a periphery of the central chip, wherein at least some of the IO chips being non-rectangular and extending into corner regions of the periphery. The IO chips may have non-rectangular patterned areas in the shape of isosceles trapezoids, right trapezoids, and stepped tables, for example.

Abstract: Adaptive clock mechanisms for serial links utilizing a delay-chain-based edge generation circuit to generate a clock that is a faster (higher-frequency) version of an incoming digital clock. The base frequency of the link clock utilized by the line transmitters is determined by the (slower) clock utilized by the digital circuitry supplying data to the line transmitters. An edge generator that may be composed of only non-synchronous circuit elements multiplies the edges of the slower clock to generate the link clock and also a clock forwarded to the receiver at a phase offset from the link clock.

Abstract: A process to ameliorate scoreboard aliasing in multi-threaded data processors whereby, in response to executing at least one long-latency instruction in a first thread, a shared hardware scoreboard is incremented. A shared software register is incremented and the shared software register is spilled to a first per-thread register, and execution is switched to a second thread. After execution switches back to the first thread, execution of the first thread is suspended until the shared hardware scoreboard reaches a value at or below a difference between a value in the shared software register and the value spilled into the first per-thread register.

Abstract: Reference voltage generators including a header circuit configured to pass current from a power supply to a time-to-digital converter, an amount of the current to pass determined by a thermometer code, and logic to update the thermometer code based on a comparison between an output of the time-to-digital converter and a digital code representing a reference voltage level.

Abstract: Power delivery systems for integrated circuits that include a first metal path traversing first metal layers from a global power domain supply to a voltage regulator, a second metal path traversing second metal layers from a local power domain supply to the voltage regulator, and a third metal path traversing third metal layers from the local power domain supply to an integrated circuit. Electrical isolation gaps are formed between the first metal layers, the second metal layers, and the third metal layers.

Abstract: A process to manage congestion in a network involves converting traffic received from the local endpoints to a bandwidth demand for one or more destination endpoint in a remote group, and determining a sum over the destination endpoints of a minimum of a maximum bandwidth of a link and a bandwidth demand to one or more of the remote endpoints.

Abstract: A circuit system and method of manufacturing a printed circuit board includes providing an integrated circuit package mounted on a first side of a printed circuit board and a power regulator connected to power terminals of the integrated circuit package through a cutout in the printed circuit board. The power regulator draws power from the printed circuit board by way of side pins around a periphery of the cutout.

Abstract: A circuit board includes chip die mounted on a three dimensional rectangular structure, a three dimensional triangular prism structure, or a combination thereof. A ball grid array for the chip die mounted on any such three dimensional structure is interposed between the three dimensional structure and the circuit board itself.

Abstract: A graph neural network to predict net parasitics and device parameters by transforming circuit schematics into heterogeneous graphs and performing predictions on the graphs. The system may achieve an improved prediction rate and reduce simulation errors.

Abstract: A transceiver configured to communicate a burst of data bits and meta-data bits for the data bits includes data channels, auxiliary data channels, and at least one error correction channel. The transceiver includes an encoder that applies 11b7s encoding to a first number of the data bits to generate first PAM-3 symbols on some or all of the communication channels, and that applies 3b2s encoding to a second number of the data bits to generate second PAM-3 symbols on at least some of the communication channels.

Abstract: A circuit includes a bandgap circuit configured to generate multiple reference voltages. A first voltage glitching detection circuit utilizes a first one of the reference voltages and a first power rail to generate a first reset signal in response to a voltage glitching attack on the first power rail, and a second voltage glitching detection circuit operates independently of the reference voltages to generate a second reset signal in response to the voltage glitching attack on the first power rail.

Abstract: Optical systems including an interferometer utilizing a spatial light modulator. A light guide including a first beam splitter and multiple mirrors directs incoherent light through the beam splitter to the interferometer to generate an interference light pattern, and further directs the interference light pattern back to the first beam splitter via the mirrors.

Abstract: Negative bit line voltage assist mechanisms for multi-bank machine memories utilizing multiple local IO drivers include a shared boost capacitor configured to generate a negative bit line voltage assist for write operations by local IO drivers, where the boost capacitor is configured to selectively couple to one of the local IO drivers during the write operation.

Abstract: A genetic algorithm is utilized to generate routing candidates to which a reinforcement learning model is applied to correct the design rule constraint violations incrementally. A design rule checker provides feedback on the violations to the reinforcement learning model and the model learns how to fix the violations. A layout device placer based upon a simulated annealing method may also be utilized.

Abstract: Lattice graph routability modelling mechanisms for standard cells utilizing a trained lattice graph routability model to determine routability metrics for local areas and global net connections in the standard cell. The metrics are applied to influence transistor placement in the standard cell, resulting in standard cell layouts with improved routability. Circuit layout generating processes are also described, in which a layout is formed lacking external pin assignments, and during routing of the nets for the circuit, a graph comprising virtual nodes and edges from the virtual nodes to grid locations for pins external to the circuit is generated. Routing to the external net of the circuit is performed according to the graph nodes and the graph edges.

Abstract: Lattice graph routability modelling mechanisms for standard cells utilizing a trained lattice graph routability model to determine routability metrics for local areas and global net connections in the standard cell. The metrics are applied to influence transistor placement in the standard cell, resulting in standard cell layouts with improved routability. Circuit layout generating processes are also described, in which a layout is formed lacking external pin assignments, and during routing of the nets for the circuit, a graph comprising virtual nodes and edges from the virtual nodes to grid locations for pins external to the circuit is generated. Routing to the external net of the circuit is performed according to the graph nodes and the graph edges.

Abstract: Power supply circuits in which a supplemental current driver is utilized to boost the current provided by a voltage regulator. The supplementing driver detects operating conditions for providing the supplementary current, and may be trained to provide particular amounts of current in response to particular operation conditions of a circuit load.

Abstract: Mechanisms to mitigate signal race conditions in circuits that utilize multiple voltage domains. The mechanisms are applicable in signal fanout scenarios where leakage becomes problematic to signal timing, such machine memory devices, e.g., volatile single port or multi-port memory devices such as SRAMs (volatile static random access memory) or other bit-storing cell arrangements that include memory cells and a hierarchical bitline structure including local bitlines for subsets of the memory banks and a global bitline spanning the subsets.

Abstract: Optical transceiver architecture utilizing micro-ring modulators and micro-ring resonators configured to route resonant wavelengths of light injected into each micro-ring resonator's input port and through port to that micro-ring resonator's drop port and add port, respectively. The micro-ring resonators drop two distinct streams of data modulated onto the same optical wavelength, or two wavelengths separated by an integer number of free spectral ranges coupled into the micro-ring resonators in two different directions.

Abstract: A process for manufacturing inductors for use in integrated circuits includes embedding ferromagnetic material in a bulk silicon substrate, forming a plurality of vias in the bulk silicon substrate such that the vias bracket a volume of the bulk silicon substrate that includes the ferromagnetic material, slicing the bulk silicon substrate to form a silicon wafer, and configuring traces between top metal pads of the vias and between bottom metal pads of the vias to form a continuous path for current to flow circumferentially from a first end of the volume to a second end of the volume.