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The design and simulation of a scalable neural chip with synaptic electronics using nanoscale memristors fully integrated with complementary metal-oxide-semiconductor (CMOS) is presented. The circuit consists of integrate-and-fire neurons and synapses with spike-timing dependent plasticity (STDP). The synaptic conductance values can be stored in memristors with eight levels, and the topology of connections between neurons is reconfigurable. The circuit has been designed using a 90 nm CMOS process with via connections to on-chip post-processed memristor arrays. The design has about 16 million CMOS transistors and 73 728 integrated memristors. We provide circuit level simulations of the entire chip performing neuronal and synaptic computations that result in biologically realistic functional behavior.
HRL Laboratories LLC, Malibu, CA 90265, USA.
This article was published in the following journal.
In the field of Brain Machine Interfaces (BMI) researchers still are not able to produce clinically viable solutions that meet the requirements of long-term operation without the use of wires or batte...
Trapping and manipulation of cells are essential operations in numerous studies in biology and life sciences. We discuss the realization of a Lab-on-a-Chip platform for dielectrophoretic trapping and ...
We present a monolithic CMOS-based sensor system comprising an array of silicon nanowire field-effect transistors (FETs) and the signal-conditioning circuitry on the same chip. The silicon nanowires w...
An integrated CMOS chip is implemented in 0.13μm technology that detects the efficacy of pore-forming antibiotics on bacterial samples in 10 minutes. The chip has been tested using two strains of E. ...
The synaptic activities in nervous system is the basis of memory and learning behaviours, and the concept of biological synapses also spurred the development of neuromorphic engineering. In recent yea...
The purpose of the study is to assess the efficacy and the safety of Chlorhexidine Gluconate chip (Periochip®) versus Placebo Chip in treatment of symptoms in patients with Peri-Implantit...
The aim of the current study is to evaluate to effectiveness of sperm selection by using fertile chip in unexplained infertile couples on ICSI cycles.
The purpose of the study is to determine whether a DNA chip, designed by Medical Prognosis Institute (MPI), can provide an accurate prognosis for survival of NSCLC (adeno-, squamous and la...
The study examines the effects of delta-9-tetrahydrocannabinol (Δ9-THC), the principal active ingredient of cannabis, on neural synchrony. Neural synchrony is studied using electroencepha...
The purpose of this study is to determine the effect of the placement of a PerioChip Plus (flurbiprofen/chlorhexidine - FBP/CHX) formulation versus PerioChip (chlorhexidine) formulation ve...
The communication from a NEURON to a target (neuron, muscle, or secretory cell) across a SYNAPSE. In chemical synaptic transmission, the presynaptic neuron releases a NEUROTRANSMITTER that diffuses across the synaptic cleft and binds to specific synaptic receptors, activating them. The activated receptors modulate specific ion channels and/or second-messenger systems in the postsynaptic cell. In electrical synaptic transmission, electrical signals are communicated as an ionic current flow across ELECTRICAL SYNAPSES.
An early embryonic developmental process of CHORDATES that is characterized by morphogenic movements of ECTODERM resulting in the formation of the NEURAL PLATE; the NEURAL CREST; and the NEURAL TUBE. Improper closure of the NEURAL GROOVE results in congenital NEURAL TUBE DEFECTS.
The voltages across pre- or post-SYNAPTIC MEMBRANES.
A protein component of the synaptic basal lamina. It has been shown to induce clustering of acetylcholine receptors on the surface of muscle fibers and other synaptic molecules in both synapse regeneration and development.
The two longitudinal ridges along the PRIMITIVE STREAK appearing near the end of GASTRULATION during development of nervous system (NEURULATION). The ridges are formed by folding of NEURAL PLATE. Between the ridges is a neural groove which deepens as the fold become elevated. When the folds meet at midline, the groove becomes a closed tube, the NEURAL TUBE.