“With efficient optics, we have the opportunity to prove the promise of efficient lighting,” Schreiber said. “But, for the small LED chips, we need also small but precise and precisely mounted optics. This requires some changes of mind of the luminaires manufacturers – which are used to ...
Simulation models (such as finite element models) with detail matching the accuracy desired at a particular design stage must be available. In a simulation-driven design process, engineers have access to powerful geometry editing tools, like direct modelling and dimension-driven design. The most ...
Major yield-Inhibiting Issues At each successive process node, additional defect mechanisms appear and hinder the ability to achieve desired yield (Figure 1). The trend toward declining yields has led to a resurgence in the application of design for manufacturing (DFM) methodologies.Much of...
If desired, multiple patterns can be used simultaneously, making it very easy to produce larger calibration geometries. Strict planarity is not required, since we later perform full bundle adjustment including the calibration patterns' geometries. However, we assume approxi...
The current sense amplifier could also be used for a grounded current sense for this ap- plication, if desired, so the output can be tied to the LED string directly. ISP2 would be tied to the cathode side of the LEDs, and ISN2 is tied to ground. 90 85 80 75 70 65 60 55 50 0...
They seemed to enjoy their sleep, protected it, and were quite concerned when they were occasionally robbed of their desired 9 hours of nightly bed rest. They tended to recall their dreams much better than did the “short sleepers.” Many of the “long sleepers” were shy, anxious, ...