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Automated probing lets you control the variables.
www.us-tech.com
March, 2012
Electronic Paper Display Getting Much Closer
Continued from page 1
are able to hide or reveal colored pig- ment in a manner that is optically superior to the techniques used in electrowetting, electrophoretic and electrochromic displays.” Because the optically active lay-
er can be less than 15 microns thick, project partners at PolymerVision see strong potential for rollable dis- plays. The product offerings could be extremely diverse, including elec- tronic windows and tunable color casings on portable electronics. “This takes the Amazon Kindle,
The Huntron Access DH Prober is designed with your test and measurement needs in mind.
Te Access DH dual head Prober lets you control variables such as dexterity, high density, tight lead spacing and speed with precise, fast and repeatable guided probing.
Applications Examples - - Huntron Power-off ASA - Precision Mechanical Applications - Boundary Scan - Point-to-point Measurements
- Guided Probe Measurements - Image Capture and Comparison - Stimulus/Response Measurements - Multiple Probe Arrays
for example, which is black and white, and could make it full color,” Heikenfeld says. “So now you could take it from a niche product to a mainstream product.”
Monochrome Comes First The first tiny pigment droplets
that pop up through the paper-bright white background of Gamma e-paper are black and white, and all of the initial development efforts are direct- ed at making this manufacturable and reliable. But mono is not an in- herent limitation; it’s just the first step. Color is on its own development track and Gamma has said that it will have something to show publicly in about a year. The appearance of the display is
very much like paper with print on it. As such, its first applications may well be for e-books — better, brighter more readable paper, and cheaper, without glare or washouts. The displays can be manufac-
tured as active (up to video rates) or bistable (zero power except to change), they can be flexible or rigid, monochrome or color, paper-like or transparent. The initial work at Gamma has
focused on what it takes to turn pix- els on and off, then what it takes to do it faster. The next major step is how to accomplish grey scales, which are a plus for monochrome, but a ne- cessity for anything other than prim- itive “paint box”
color.Grey scale work is following several paths,pri- marily involving either spatial or temporal finesse. Color work can’t get serious until grey scale is solved. While electrofluidic display
technology sounds like a single solu- tion, it actually describes a fairly broad cluster of achievable displays, each with its own attributes. Despite the university backgrounds of many members of the development team, the pure science is not their goal. The immediate priority is to be able to get into very small volume prototype production that will allow them to more quickly refine the electronics, fluidics and legibility alternatives of the best possible displays that are consistent with good production yields.
While these prototypes will all
remain in house, the end of the sum- mer of 2012 could bring some stun- ning new results. Contact: Gamma Dynamics
Corp., 7700 South River Parkway, Tempe, AZ 85284 % 480-276-5971. r
Cool Nano Loudspeakers Feeding Quantum Processors
Access DH shown above with standard spring probes mounted to the Z axis heads Adaptable by Design
Te ability to customize the Access DH probe head assemblies combined with software created using the Huntron Workstation SDK, Hardware SDK or Remote Control provides many integration and customization opportunities. Te probe head design includes pre-wired interconnections for adding built-in USB, Firewire or Ethernet instrumentation at the head.
Built-in interface connections on Z head
Test Automation
As the density and complexity of circuit boards has increased, the need to accurately place a probe on a test point has grown. Huntron recognized this issue early on and released its first robotic test platform in 1991. Our Access Probers have matured over the years with increased accuracy and the ability to be customized based on your test and measurement needs.
Continued from page 1
faint electrical signals using the mo- tion of a nanomechanical membrane, or loudspeaker. If shown in experiments, the
scheme could prove a boon to mag- netic resonance imaging and quan- tum information science. The JQI is a collaborative venture of the Nation- al Institute of Standards and Tech- nology (NIST) and the University of Maryland, College Park. “We envision coupling a nano -
mechanical membrane to an electri- cal circuit so that an electrical signal, even if exceedingly faint, will cause the membrane to quiver slightly as a function of the strength of that sig- nal,” says JQI physicist Jake Taylor. “We can then bounce photons from a laser off that membrane and read the signal by measuring the modulation of the reflected light as it is shifted by the motion of the membrane. This leads to a change in the wavelength of the light.” Present technology for measur-
Custom multi-probe assembly mounted on the Access DH Z head
To get more details on what you can do with the Huntron Access DH, call or click, 800-426-9265 or
www.huntron.com.
ing the wavelength of light is highly sensitive, which makes it ideal for detecting the nanoscopic motions of the loudspeaker caused by extremely faint electrical signals. And the abili- ty to detect extremely faint electrical signals may someday make MRI medical procedures much easier. “MRI machines are so big be-
cause they are stuffed with really powerful superconducting magnets,
See us at APEX, Booth 619
but if we can reduce the strength of the signals we need for a reading, we can reduce the strength, and the size, of the magnets,” Taylor says. “This may mean that one could get an MRI while sitting quietly in a room and forgo the tube.” The same setup could be used to
generate information-carrying pho- tons from one qubit to another, ac- cording to Taylor. One popular quantum informa-
tion system design uses light to transfer information among qubits, entangled particles that will exploit the inherent weirdness of quantum phenomena to perform certain calcu- lations impossible for current com- puters. The “nanospeaker” could be used to translate low-energy signals from a quantum processor to optical photons, where they can be detected and transmitted from one qubit to another. All this, and the team will
throw in cooling the system for free. According to their calculations, translating the mechanical motion of the little loudspeaker into photons will siphon a considerable amount of heat out of the system (from room temperature to 3 kelvin or -270°C), which in turn will reduce noise in the system and provide for better signal detection. Info:
http://link.aps.org/ doi/ -
10.1103/ PhysRevLett.107.273601r
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