Imec
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Apple is the first public partner to join sustainable chip initiative
With the Sustainable Semiconductor Technologies and Systems program, Imec wants to help chipmakers reduce their carbon footprint.
Researchers devise contact lens with built-in LCD (video)
Another day, another step towards technologically tricked out contact lenses. The latest development comes from researchers at the Centre of Microsystems Technology at Ghent University, who've developed a prototype lens with an embedded, spherical curved LCD that isn't limited to a paltry amount of pixels. As opposed to LED-based solutions which could only muster a few pixels, the newly-developed screen can pack enough to display graphics that cover a contact. In its current form, the display can show simple patterns, and demonstrates the technology with a simple dollar sign. What appears on the lens wouldn't be visible to folks who wear it, however, since eyes can't focus at such a close range. Despite the limitation, researchers are trying to tackle the focusing issue and are assessing the feasibility of a version that would effectively act as a heads-up display. In the future, the tech could be leveraged for medical purposes, such as controlling light transmission to the retina when the iris is damaged, cosmetic uses and -- you guessed it -- HUDs. With the technology's foundation established, it's expected that real-world applications are potentially a few of years away. Hit the jump to catch a video of the tech in action.
IMEC working with holograms, mirrored pixels to prevent 3D movie headaches
Let's face it, 3D movies are amazing but there are times when you'll walk away with a killer headache. A group of researchers at IMEC believes that holographic video might be the best way around this problem and has been working on a means of constructing holographic displays by shining lasers on microelectromechanical systems (MEMS) platforms capable of moving up and down like small, reflective pistons. Here's the cool part: each pixel would have a spring-like mechanism attached to it that could be moved by applying voltage to it. In the first stage of the technology, a laser is bounced off a MEMS-less chip containing an image, the diffracted light interfering to create a 3D picture. From here, the team can adjust the image by replacing pixels with small, mirrored platforms that can alternate their direction to create a moving projection. It gets technical after this, but you can take a gander at the video after the break for a full demo and explanation.
Researchers grow crops on super thin film, do away with that pesky soil stuff
Here's the problem with plants: they require dirt which is, well, dirty. Japanese researchers at Mebiol have figured out a way to grow small crops of Earthly flora on clean sheets of hydrogel (commonly found in diapers), called Imec, that measures just tens of microns thick. Roots grow along the membrane, absorbing water through it, but the material is able to block out bacteria and viruses that could harm the plants. Of course, there are downsides. Water is absorbed at a much lower rate through the gel than with traditional soil, so plant size is limited and only the strongest and healthiest varieties can truly thrive on the flexible sheets. By using carefully selected plants and high quality fertilizer though, researchers were able to grow tomatoes, spinach and even melons, and hope to strengthen the film enough to support trees. Not bad for a substance normally used to absorb baby pee. Check out the video after the break.
IMEC creates flexible microprocessor with organic semiconductors -- computational clothing right around the corner
Organic semiconductors have been teasing us with the possibility of computationally-inclined clothing for years, but until now we could only dream about our pants being the computer. That dream is closer to reality than ever, as researchers from IMEC have created a cheap (potentially 1/10th the cost of silicon chips), bendable microprocessor by layering a plastic substrate, gold circuits, organic dielectric, and a pentacene organic semiconductor to create an 8-bit logic circuit with 4000 transistors. Executing 6 instructions per second, these things won't be challenging Watson any time soon, but the chips should prove useful in creating cheaper flexible displays and sensors to tell us whether that week-old chicken in the fridge has gone bad. The trick was to overcome individual organic transistors' variable switching voltage thresholds -- as opposed to silicon's predictable nature -- that eliminated the possibility of organic-based logic circuits previously. But by adding a second gate to each transistor, IMEC was able to control the electrical field in each to prevent unwanted switching and usher in the dawn of plastic processors. The zenith of nerd fashion can't be far behind.
Researchers develop tiny, autonomous piezoelectric energy harvester
Folks have long been using piezoelectric devices to harvest energy in everything from dance floors to parking lots, but a group of European researchers have now shown off some novel uses for the technology at the recent International Electron Devices Meeting that could see even more of the self-sufficient devices put to use. Their big breakthrough is that they've managed to shrink a piezoelectric device down to "micromachine" size, which was apparently possible in part as a result of using aluminum nitride instead of lead zirconate titanate as the piezoelectric material, thereby making the devices easier to manufacture. Their first such device is a wireless temperature sensor, which is not only extremely tiny, but is able to function autonomously by harvesting energy from vibrations and transmit temperature information to a base station at 15 second intervals. Of course, the researchers say that is just the beginning, and they see similar devices eventually being used in everything from tire-pressure monitoring systems to predictive maintenance of any moving or rotating machine parts.
Resin replaces ITO in latest flexible OLED prototype
Make no mistake, wrapping your mind around the build of an OLED panel is mighty tough to do. Without getting you mired in technobabble, let's just say that indium tin oxide (ITO) has generally been a mainstay in every single OLED that was produced commercially. Now, a team of researchers from AGFA-Gevaert, IMEC, Holst Centre and Philips have prototyped a 12- x 12-centimeter flexible OLED lighting panel that swaps out the ITO for highly-conductive transparent resin electrodes. You see, it's been difficult for OLED builders to secure enough electrical conductivity of ITO in a low-temperature process, and this new methodology is perfectly suited for the coating method (which makes it ripe for printing). The resin itself is being dubbed Orgacon, and tests have shown it to have a 6x improvement over ITO in terms of electrical conductivity. Beyond that, the crews are keeping the secrets safe from the poachers of the world, but here's hoping this amounts to more than just jovial celebration in a far off laboratory.[Via OLED-Display]
IMEC reveals wireless EEG headband, Geordi La Forge approves
Make no mistake about it, if Geordi La Forge ever needed a wireless EEG system, this would be atop his list. Developed by IMEC, the same folks who brought us the wireless ECG patch, this wearable contraption enables brain wave monitoring sans the use of batteries. Rather, it relies on body heat dissipated naturally from the forehead for power, which allows it to "operate completely autonomous and maintenance-free." The entire rig consumes just 0.8mW of energy, and it utilizes the company's proprietary biopotential readout ASIC to extract EEG signals, which are then encoded and beamed to a PC via a 2.4GHz wireless radio. As for applications, IMEC is apparently hoping that this creation can be used to detect certain kinds of brain trauma, monitor brain activity and draw all kinds of unwanted attention.[Via MedGadget]
