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efan999
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re: China develops phase-change RAM
efan999   4/20/2011 3:37:36 PM
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One more thing - surely the Chinese are gunning for rad-hard chips, after their latest shipment was confiscated. Unfortunately, the Chinese failed to read the JPL report which shows that these PCRAM chips throw off errors like crazy. And BAE has persistently failed its US military qualifications for these rad-hard PCRAM chips since 2006. Now it is offering them to the Russians, hoping to ruin their space program.

efan999
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re: China develops phase-change RAM
efan999   4/20/2011 3:31:15 PM
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This is the funniest article I have read in a while. Mr. Clarke has done it again! The fact is, Samsung has achieved no deployment in any mobile phone. Samsung just floated a few fake, non-commercial units of the low-end GT-E2550 model, before it realized that the chips have power-consumption issues, immediately revised the bill of materials for the model, and replaced the chips with plain NOR MCPs last summer. Micron, of course, has no sales of its undeperforming and overpriced 128-Mbit chip and is not working on any 1-Gbit chip. Shanhai Institute's PCRAM test chip may indeed read, write and erase - up to 1000 times, at the speed of a snail. Ovonyx, by the way, will file for Chapter 11 by the end of 2012.

unknown multiplier
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re: China develops phase-change RAM
unknown multiplier   4/20/2011 2:11:05 PM
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If it's not from Ovonyx, that would be interesting.

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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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