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Steve_i7
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re: IBM claims fastest graphene transistor
Steve_i7   12/23/2008 2:52:03 AM
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Thanks for choosing this story. Please note that the graphene device in question does not "operate" at 26 GHz, but that this frequency is based on an extrapolation from data up to 10 GHz. 10 GHz is the highest frequency "achieved" by this transistor. See figure 6 in the paper.

EE Space
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re: IBM claims fastest graphene transistor
EE Space   12/19/2008 5:28:19 PM
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May I suggest that you always provide the source of your tech news, such as a professional journal, meeting proceedings, or a web link? I think this should do a really good service to your readers.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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