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Low Energy and Noise Sub-Sampling Phase-Locked Loop

Phase locked loops are widely employed in radio, telecommunications, computers and other electronic applications. They can be used to demodulate a signal, recover a signal from a noisy communication channel, generate a stable frequency at multiples of an input frequency, or distribute precisely timed clock pulses in digital logic circuits such as microprocessors. Researchers at the University of California, Davis have invented a novel, sub-sampling phase-locked, loop (SSPLL) that uses a sub-sampling lock detector (SSLD) to monitor the harmonic selected by the SSPLL. This technology requires lower energy consumption and reduces signal noise.

Stream-Based Memory Access Specialization For General Purpose Processors

Researchers led by Zhengrong Wang and Tony Nowatzki from the Computer Science Department at UCLA have created a way to improve computer processing power, speed, and efficiency by optimizing how processors access memory.

Diamond On Nanopatterned Substrates

UCLA researchers in the Department of Materials Science and Engineering have developed a nanofabrication method for improving the thermal properties of polycrystalline diamond films grown by chemical vapor deposition.

Techniques for Creation and Insertion of Test Points for Malicious Circuitry Detection

Researchers led by Dr. Potkonjak from the UCLA Department of Computer Science have developed a technique to detect hardware Trojans in integrated circuits.

Grating-Based Quantum-Cascade Vertical External Cavity Lasers In The Terahertz And Mid-Infrared

UCLA researchers in the Department of Electrical Engineering have developed grating-based quantum-cascade vertical external lasers that operate in the terahertz and mid-infrared range.

Distributed Feedback Laser with Transparent Conducting Oxide Grating

Improved laser diodes which use distributed feedback (DFB) or distributed Bragg reflector (DBR) gratings to enable single wavelength operation in Group III-N lasers operating at visible or ultraviolet wavelengths.

Magnetoelectric Device with Two Dielectric Barriers

UCLA researchers in the Department of Electrical and Computer Engineering have developed a magnetoelectric memory device that uses two dielectric barriers for improved voltage-controlled magnetic anisotropy (VCMA) and tunnel magnetoresistance (TMR) properties.

An Improved On-Chip Crosstalk Noise Model

Researchers led by Jason Cong from the Department of Computer Science at UCLA have developed an improved on-chip crosstalk noise model to optimize integrated circuit design.

Selective Deposition Of Diamond In Thermal Vias

UCLA researchers in the Department of Materials Science & Engineering have developed a new method of diamond deposition in integrated circuit vias for thermal dissipation.

Wafer Bonding for Embedding Active Regions with Relaxed Nanofeatures

An alternative method, using wafer bonding, to connect relaxed nanostructures in the active region with separately grown material.

Efficient Implementation of a Tunnel Junction Contact on a Nitride-Based Edge-Emitting Laser Diode

An edge-emitting laser diode that leverages the design space uniquely using a tunnel junction contact to improve laser diode performance.

Colloidal Lithography-Enabled Creation of Metasurface-Integrated MicroLEDs and Devices

A resonant-cavity device that utilizes stimulated emission efficiency and/or narrows the emission angular profile.

CMOS-Compatible Doped-Multilayer-Graphene (DMG) Interconnects

A method to implement high-conductivity nanometer-scale doped-multilayer-graphene (DMG) interconnects that are compatible with high-volume manufacturing of integrated circuits (ICs).

A Nonvolatile Magnetoelectric Random Access Memory Circuit

UCLA researchers in the Department of Electrical Engineering have developed a nonvolatile random-access memory circuit (MeRAM) that is very dense, fast, and consumes extremely low power.

Voltage-Controlled Magnetic Memory Element With Canted Magnetization

UCLA researchers in the Department of Electrical Engineering have developed a method for voltage-controlled switching of the magnetization direction in MeRAM circuits.

Wideband Distributed Mixers

This technology is a simple, novel ultra wideband distributed complementary metal-oxide-semiconductor mixer, which incorporates on-chip distributed transmission line. A wideband distributed mixer is capable of operation over a wide range of frequencies, and can carry large amounts data up to 250 feet, which makes it attractive for military and law-enforcement use.

Simple and Effective Strategy for Optical Band Gap Control in Conjugated Oligomers and Polymers

Researchers have demonstrated the ability to modulate the electronic properties of a conjugated molecule via interaction with Lewis acids that bind a basic site in the molecule.

Multilayer Batch Microfabricated Magnetic Shielding

UCLA researchers in the Department of Electrical Engineering have developed a novel batch microfabrication technique for microscale shielding layers, simultaneously pushing the limits of minimum size, maximum shielding factor, flexibility, and cost.

A Plastic Synapse Based on Self-Heating-Enhanced Charge-Trapping in High-K Gate Dielectrics of Advanced-Node Transistors

UCLA researchers in the Department of Electrical Engineering and Computer Science have developed a novel way of implementing plastic synapses for neuromorphic systems applications by using charge-trapping advanced-node transistors.

Magnetic Pendulum Array for Efficient Wireless Power Transmission

UCLA researchers in the Department of Electrical Engineering have developed a novel magnetic pendulum array based mechanical antenna system for near field wireless power transfer with a 2-3 orders of magnitude improvement in quality factor.

Controlling Magnetization Using Patterned Electrodes on Piezoelectrics

UCLA researchers in the Department of Materials Science and Engineering have developed a novel piezoelectric thin film that can control magnetic properties of individual magnetic islands.

Approaching Schottky-Mott Limit in Van Der Waals Metal Semiconductor Contacts

UCLA researchers in the Department of Chemistry and Biochemistry have successfully achieved van der Waals ohmic contact in metal-semiconductor junctions with an interface S-parameter approaching the Schottky-Mott limit.

An Actuator Device Driven By Electrostatic Forces

Researchers in the UCLA Department of Materials Science and Engineering have developed an electrostatically actuated device with reversible high-frequency operation that consumes low power and has low fabrication costs.

Refreshable Tactile Display Using Bistable Electroactive Polymer

Researchers in the UCLA Department of Materials Science and Engineering have developed a high resolution, refreshable, and low-cost pneumatic tactile interactive device with a compact structure, single fluidic reservoir, and high actuator density that exerts large stroke and provides high blocking force.

Network On Interconnect Fabric

Researchers at the UCLA Department of Electrical & Computer Engineering have developed a novel network on interconnect fabric (NoIF) to support global communication, power conversion and management, synchronization, and to facilitate testing within the silicon interconnect fabric (Si-IF).

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