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High-quality III-V layers on Si(001) pave the way to high-performance Ge/III-V CMOS

Imec has demonstrated the selective area growth of high-quality InP layers on 200mm Si(001) wafers. Key to avoiding the typically formed and unwanted antiphase boundaries (APBs) is the creation of atomic steps on a thin Ge buffer layer. This result is a major step forward towards the fabrication of high-performance Ge/III-V CMOS devices and the integration of optoelectronic devices on a Si chip.

Posted: Dec 18th, 2010

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Innovative method to fabricate complex 3D microstructures

Researchers from imec and the University of Michigan have reported a new technology to fabricate complex three-dimensional microstructures, with intricate bends, twists, and multidirectional textures, starting from vertically aligned carbon nanotubes.

Posted: Dec 18th, 2010

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Process flow for the biocompatible packaging of medical implants

Imec has derived a process flow concept for the packaging of medical implants that meets the requirements for miniaturization, biocompatibility and safety. The proposed solution is a promising alternative for the currently used rigid packages that tend to enhance foreign body reactions.

Posted: Dec 18th, 2010

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NO2 gas sensor based on vertically-grown InAs nanowires

Imec and Holst Centre have developed an innovative sensor for measuring ultra-low concentrations of NO2. Such sensors are important for applications that monitor environmental pollution resulting from traffic, and in general, from all combustion motors. The sensor's active components are arrays of grown vertical InAs nanowires.

Posted: Dec 18th, 2010

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Study to avoid stress impact of 3D stacking on IC performance

At IEDM 2010, imec and its partners presented a study of the stress-induced impact of through-silicon via (TSV) processing on the performance of high-k/metal-gate CMOS transistors and circuits. This study is a first of its kind; the results and the approach that was followed are a foundation for stress-aware design with dedicated design rules. This will allow to precisely delineate keep-out zones, and thus to save valuable silicon area.

Posted: Dec 18th, 2010

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Organic electronic ratchets doing work

Researchers at Eindhoven University of Technology and the COBRA research institute in Eindhoven have succeeded in causing electron transport using an electronic 'ratchet'. This is the first time that usable powers have been generated at room temperature with a device of this kind. The finding opens the possibility of a new kind of wireless drive for microelectronic circuits.

Posted: Dec 17th, 2010

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How do you cut a nanotube? Lots of compression

Researchers at Brown University and in Korea have described the dynamics behind cutting single-walled carbon nanotubes, cylindrical structures just 1/50,000th the width of a human hair. The tubes are compressed by potent sonic booms, causing them to buckle at certain points at helical, 90-degree angles. The finding could lead to better-quality nanotubes for potential use in automotive, electronics, optics and other fields.

Posted: Dec 17th, 2010

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Novel injectable hydrogel with tunable stiffness for tissue repair and regeneration

Scientists at the Institute of Bioengineering and Nanotechnology (IBN), the world's first bioengineering and nanotechnology research institute, have developed the first injectable hydrogel system with variable stiffness that can control cell proliferation and differentiation in a two-dimensional (2D) and three-dimensional (3D) cell culture environment.

Posted: Dec 17th, 2010

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Quantum or not?

Mathematical equations can now resolve whether electron transport in nanostructures follows classical or quantum mechanical behavior.

Posted: Dec 17th, 2010

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Nanoparticles deliver one-two therapeutic punch to kill tumor cells

The standard approach to cancer therapy today is to mix and match chemotherapy drugs in order to attack tumors in multiple ways. Now, two separate teams of investigators have demonstrated that using nanoparticles to deliver multiple drugs simultaneously can produce a synergistic effect that boosts the cell-killing ability of both drugs.

Posted: Dec 16th, 2010

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Nanoparticle targets brain tumors

Employing nanoparticles as a drug delivery agent, a research team has created a 'nanobioconjugate' drug that may be given by intravenous injection and carried in the blood to target the brain tumor.

Posted: Dec 16th, 2010

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