CMOS integrated circuits

Impact of FinFET on Near-Threshold Voltage Scalability

Near-threshold operations provide a powerful knob for improving energy efficiency and alleviating on-chip power densities. This article explores the impact of newest FinFET CMOS technologies (from 40 to 7 nm) on near-threshold computing in terms of …

Supply boosting for high-performance processors in flip-chip packages

On-chip supply boosting can quickly restore a microprocessor core's power rail from near-threshold to super-threshold when critical code sections are encountered. We demonstrate a flip-chip implementation of a supply boosting technique, called …

Reconfigurable self-timed regenerators for wide-range voltage scaled interconnect

A reconfigurable self-timed regenerator based global interconnect scheme enables graceful degradation of performance and power in wide range dynamic voltage/frequency scaled systems. A test chip demonstrates up to 40% and 25% better performance …

A fully-integrated 40-phase flying-capacitance-dithered switched-capacitor voltage regulator with 6mV output ripple

A switched-capacitor voltage regulator (SCVR) that dithers flying capacitance (C$_textrmFLY$) to reduce output ripple is presented. The proposed technique is implemented in a 40-phase SCVR with 4b C$_textrmFLY$ modulation in 65nm CMOS. At 2.3V input, …

A reconfigurable sense amplifier with auto-zero calibration and pre-amplification in 28nm CMOS

This work presents an area-efficient and variation-tolerant small-signal differential sensing (VTS) scheme that modifies the conventional SA circuit to include: 1) a structure for on-the-fly, auto-zeroing offset compensation, 2) pre-amplification of …

A 467nW CMOS visual motion sensor with temporal averaging and pixel aggregation

Visual monitoring with CMOS image sensors opens up a variety of new applications for wireless sensor nodes, ranging from military surveillance to in vivo molecular imaging. In particular, the ability to detect motion can enable more intelligent power …

A true random number generator using time-dependent dielectric breakdown

A true random number generator (tRNG) is proposed that, for the first time, uses the random physical process of time to oxide breakdown under voltage stress. Time to breakdown is repeatedly measured with a counter and serialized into a bitstream. The …

Low power silicon photonic transceivers

We present ultra low power silicon photonic transceivers, including a 320 fJ/bit reverse biased ring modulator integrated with CMOS driver, and a 690 fJ/bit record-low power receiver with sensitivity of -18.9 dBm at 5 Gbps for bit-error-rate of …

A package demonstration with solder free compliant flexible interconnects

Flexible, stress-engineered spring interconnects are a novel technology potentially enabling room temperature assembly approaches to building highly integrated and multi-chip modules (MCMs). Such interconnects are an essential solder-free technology …

Circuits for silicon photonics on a “macrochip”

Recent advances in silicon photonics bring significant benefits to "macrochip" grids made of arrayed chips. Such configurations have global interconnects long enough to benefit from the high speed, low energy, and high bandwidth density of optics. In …