galliumnitride
Latest
Oppo's next phone can be fully charged in just 30 minutes
While a handful of recent flagship phones -- namely Samsung's Note 10+ (with the optional 45W adapter) and Vivo's NEX 3 5G -- can be fully charged in a little over an hour, Oppo's upcoming tech will soon render such "fast" charging speeds obsolete. We're talking about juicing up a 4,000mAh battery in just 30 minutes! That's the claim for Oppo's 65W SuperVOOC 2.0 feature, which will debut on the gaming-centric Reno Ace due October 10th, according to the company's Shenzhen event yesterday.
Boston University sues Apple over chip technology patent
We usually associate Boston University with brain studies and bat-chasing UAVs; we'll have to add technology patent lawsuits to the list. Following similar claims versus the likes of Amazon and Samsung, the university has sued Apple for allegedly infringing on a 1997 patent for making gallium nitride thin films used in semiconductors. The university wants both financial compensation (likely the real objective) and a ban on US sales of the purportedly offending iPad, iPhone 5 and MacBook Air. Neither side is commenting on the case, although we suspect that it will end with a whimper, not a bang. Like many big tech firms, Apple tends to fight patent lawsuits when it expects to win, and settle out of court when it doesn't. We'd add that the patent expires in 2015 -- a Boston University victory would have relatively little effect on Apple's future.
Samsung breakthrough could turn your window pane into a big ol' LED
Samsung's quest for transparency won't end with laptops, apparently. Today, the Samsung Advanced Institute of Technology announced that its engineers have successfully created "single crystalline Gallium Nitride on amorphous glass substrates" -- an achievement that would allow the manufacturer to produce jumbo-sized LEDs from normal glass, including window panes. Samsung says this scaled-up approach will allow them to lower production costs relative to most LED manufacturers, which rely on sapphire, rather than glass substrates. And, whereas most Gallium Nitride (GaN) LEDs on the market measure just two inches in size, Sammy's technique could result in displays about 400 times larger. "In ten years, window panes will double as lighting and display screens, giving personality to buildings," a Samsung spokesperson told the Korea Herald. Unfortunately, however, it will likely be another ten years before the technology is ready to hit the market. Until then, we'll just have to do our late night window coding the old fashioned way. [Image courtesy of Columbia Pictures / The New York Times]
Bridgelux silicon LED could mean bright future for solid state lighting
While Democrats and Republicans squabble over the future of the incandescent light bulb, a Livermore-based company has produced an LED that they claim could lead to brighter, more affordable solid state lighting. By growing gallium nitride on low-cost silicon wafers, as opposed to the typical sapphire and silicon carbide substrates, the company has achieved an output of 135lm/W (lumens per watt) with a color correlated temperature of 4730K-- brighter than any affordable LED lighting solution we've ever seen. Of course, this isn't the first time efficacy of this level has been achieved, and we've yet to see a practical application, but if Bridgelux's numbers are right, this could mean a 75 percent cut in LED production costs. The company expects the technology to make its way to real world lights in the next two to three years -- perhaps by then the furor over pigtail light bulbs will have settled a bit. Enlightening PR after the break.
Transphorm promises brickless laptop chargers, power savings aplenty
Stop us if you've heard this one before. A mysterious startup company operates in secret for a number of years, raises millions in funding from some of the biggest players in the industry (in this case, Google and Kleiner Perkins Caufield & Byers), and announces a breakthrough technology that promises to change everything. In this case the startup is a company called Transphorm, and the breakthrough is a gallium nitride technology that promises to improve AC/DC transformers. While that might not sound like the most exciting thing in the world, the company's CEO says that it could not only drastically reduce the electricity wasted by electronics that currently rely on silicon components, but significantly reduce the size of the components as well. One prime example there is laptop charger bricks, which Transphorm says could be reduced or even completely eliminated by building the necessary components right into the laptop itself. The company also sees a huge opportunity with electric cars, and especially data centers, which is one of the first markets it will be targeting. Of course, complete details are still fairly light at the moment, but the company is promising to unveil its first products in just two weeks, and you can be sure we'll be watching.
Glowing nanowires could light up your life, one particle at a time
A gadget without LEDs is like hug without a squeeze or apple pie without cheese -- no blinkenlights no care. But, what about nanoscale gadgets? Previously things that were smaller than LEDs naturally couldn't offer their charming glow, but now nanobots too can assault your rods, cones, and good taste thanks to a new process of creating "nano-LEDS" developed by Babak Nikoobakht and Andrew Herzing at NIST. They're really just nanowires, but these have a very different composition than usual due to their method of creation: growing horizontally like vines instead of vertically like trees. By growing them along a gallium nitride surface the wire partially picks up that substance's composition and, with the addition of a little electric current, that GaN infusion causes the wires to glow. Appropriate, that, since gallium nitride is also used in the production of normal-sized LEDs. And thus, the science comes full-circle.
