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Commercial manufacturing of these atomic clocks began in 2011. [4] The CSAC, the world's smallest atomic clock, is 4 x 3.5 x 1 cm (1.5 x 1.4 x 0.4 inches) in size, weighs 35 grams, consumes only 115 mW of power, and can keep time to within 100 microseconds per day after several years of operation.
In August 2004, NIST scientists demonstrated a chip-scale atomic clock that was 100 times smaller than an ordinary atomic clock and had a much smaller power consumption of 125 mW. [ 33 ] [ 34 ] The atomic clock was about the size of a grain of rice with a frequency of about 9 GHz.
Apple A12 and Huawei Kirin 980 mobile processors, both released in 2018, use 7 nm chips manufactured by TSMC. [ 127 ] AMD began using TSMC 7 nm starting with the Vega 20 GPU in November 2018, [ 128 ] with Zen 2-based CPUs and APUs from July 2019, [ 129 ] and for both PlayStation 5 [ 130 ] and Xbox Series X/S [ 131 ] consoles' APUs, released ...
In 2011, chip-scale atomic clocks became available. Although vastly more expensive and power-hungry (120 mW vs. <1 μW), they keep time within 50 parts per trillion ( 5 × 10 −11 ). [ 13 ]
The clock took fewer than four years to test and build, and was developed by Steve Jefferts and Dawn Meekhof of the Time and Frequency Division of NIST's Physical Measurement Laboratory. [1] The clock replaced NIST-7, a cesium beam atomic clock used from 1993 to 1999. NIST-F1 is ten times more accurate than NIST-7.
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Pages in category "Atomic clocks" The following 18 pages are in this category, out of 18 total. ... Chip-scale atomic clock; D. Deep Space Atomic Clock; Dick effect; H.