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Complementary logic using piezoelectric MEMS switches

Problem: New technologies and approaches are needed to miniaturize logic circuits and reduce power consumption.Solution: Researchers at the University of Pennsylvania have developed low-voltage complementary logic circuits using Aluminum Nitride piezoelectric MEMS switches. These switches have been used to create a low voltage (<1.5V) inverter with...

Published: 3/17/2020

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Nanowire phase change memory

Problem: Phase Change Memory (PCM) is a leading contender to replace flash memory. In PCM devices, a material is heated to undergo glass transition, changing back and forth between the amorphous and crystalline state. However, existing PCM devices have experienced problems with reliability and threshold voltage drift. In order to make commercially viable...

Published: 3/17/2020

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Dual beam RF MEMS switches

Problem: RF MEMS switches are an emerging solution for wireless technology, but these devices typically require large switching voltages and have problems with long term reliability. Solution: A new piezoelectric RF MEMS switch design from the University of Pennsylvania could overcome many of the challenges of electrostatic switches. This design...

Published: 3/11/2020

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Single-chip multiple-frequency MEMS resonators

Problem: The increasing use of networked devices is driving a need for smaller, more efficient wireless components. Making RF MEMS filters smaller and easier to integrate with CMOS on-chip fabrication would allow for cost and size savings. Solution: A new resonator design from the University of Pennsylvania allows the co-fabrication of multiple...

Published: 3/9/2020

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Diamond waveguides for photonic devices

Problem: Photonic Integrated Circuits (PICs) can transmit information for computing using light rather than electricity. Using PICs on chips would allow for faster data transmission rates, lower power consumption, and less energy wasted through thermal dissipation. Diamond is a promising material for PICs due to its optical properties, however, fabrication...

Published: 2/3/2020

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Platinum Silicide thin films with tailored properties

Problem: Platinum is highly conductive but it has poor mechanical properties and is not very durable when used in mechanical devices. In the emerging field of nanoelectromechanical (NEM) contact switches, reliability has been identified as a key concern, and to fully enable NEM switches, new materials are needed that can perform well mechanically...

Published: 1/28/2020

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Resistance switching materials for next generation non-volatile memory

Problem: Flash memory is beginning to reach its performance limit. Other emerging memory technologies face challenges that limit their practical use. Resistance switching memory is a leading contender for the next generation of computer memory, but most resistance switching materials are prone to filamentary breakdown, which causes failure and limits...

Published: 1/23/2020

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