Close-up of a silicon wafer containing experimental Avalanche Photodetector chips.



A packaged silicon Avalanche Photodetector held in a pair of tweezers. A silicon chip is mounted in the circle on the upper right, while electrical pins on the lower left allow researchers to interface the device with test equipment.
A packaged silicon Avalanche Photodetector. The silicon chip is the grey square in the center of the image. Wire-bonds connect the device to the package pins, which in turn allow researchers to interface the device with test equipment.
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