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Browse Category: Semiconductors > Design and Fabrication

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Integration And Mass Transfer Of Microleds

Brief description not available

Controlling Linearity in N-Polar GaN MISHEMTs

Brief description not available

(Al, In,Ga, B)N Device Structures

Brief description not available

Development of a CMOS-Compatible, Nano-photonic, Laser

Researchers at the University of California, Davis have developed a new class of lasers and amplifiers that uses a CMOS-compatible electronics platform - and can also be applied to nano-amplifiers and nano-lasers applications.

New Spin Current-Based Memory Devices and Switches

Prof. Jing Shi and his colleagues from the University of California, Riverside have developed two new applications to utilize spin current in electronic devices. The first is a pure spin current switch that allows for the manipulation of pure spin current in electronic devices by allowing the user to switch between an “on” and “off” state. The device includes a first metal layer, a magnetic insulator layer, and a second metal layer. This technology controls the flow of information by switching the direction of magnetization of the middle layer. Since spin current does not require electricity, the spin current switch holds an innovative promise for the future of the way electronic devices channel current. The second is a non-volatile random access memory (RAM) device capable of using spin current to reduce electricity consumption. The technology can transmit information through electrical insulators, where the flow of information can be switched “off” by applying a magnetic field. The “on” and “off” states are two non-volatile memory states that can be stored as the magnetization direction of the magnetic insulator layer. This technology holds promise for a new generation of RAM technology that is not limited by memory bottleneck.  Fig. 1: A schematic illustration of a spin current valve. Top: The switch in the "on" position. Bottom: The switch in the "off" position.  

Scalable Manufacturing of Copper Nanocomposites with Tunable Properties

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed a cost-effective method to produce copper-based nanocomposites with excellent mechanical, electrical and thermal properties.

Flexible Microfluidic Sensors for Curved Surfaces

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed flexible tactile sensors for curved surfaces that are robust against fatigue and suitable for robotic applications.

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.

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.

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