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China develops phase-change RAM

4/20/2011 11:55 AM EDT
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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.

Volatile Memory
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re: China develops phase-change RAM
Volatile Memory   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.

Volatile Memory
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Volatile Memory   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.

resistion
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re: China develops phase-change RAM
resistion   4/21/2011 3:36:45 AM
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I think Chinese Academy of Sciences used chalcogenides like Ovonyx, based on the SIMIT papers I found. If these materials melt more easily than other semiconductor industry materials, their structure cannot be that stable..

Peter Clarke
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re: China develops phase-change RAM
Peter Clarke   4/21/2011 9:00:49 AM
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@ubm112211 Perhaps you are referring to Shandong Sino-chip Semiconductors Ltd.? But as to the power which buried Qimonda; you will need to be more specific, without being libelous.

Peter Clarke
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re: China develops phase-change RAM
Peter Clarke   4/21/2011 9:11:01 AM
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@resistion I also suspect that SIMIT is using chalcogenide mixes and the assertion that the development is entirely proprietary is a legal position. If the development is ever commercially successful one might expect some patent horse trading or legal action, eventually.

JackT
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re: China develops phase-change RAM
JackT   4/21/2011 10:43:22 AM
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China Gov: Funding SIMIT: Material/Phyics SMIC: Fab manufactory/Process Intergration Microchip SST: TD/Process/Device/Design/Product/Test/Marketing SST was acquired by microchip last year See the link: http://english.sim.cas.cn/ns/icn/200910/t20091019_45466.html Volume production? Is it NOR compatible product? Interesting and waiting for their risk production anoucement.How can they do something better than Micron.

vincentxia
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re: China develops phase-change RAM
vincentxia   4/21/2011 3:57:22 PM
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I worked in SIMIT before, known every single detail about it. the purpose of this research is not for mass production, but just getting funding from the gov.

Peter Clarke
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re: China develops phase-change RAM
Peter Clarke   4/21/2011 4:15:56 PM
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@JackT Thanks or the insight and the URL @vincentxia Some would argue it was ever thus within research groups; in the commercial world as well as in academia; in the west as well as in the east.

JackT
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re: China develops phase-change RAM
JackT   4/22/2011 1:28:08 AM
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Microchip/SST split gate flash cell may don't have road map below 65nm.They may think something diffrent. That is the reason. They may has some sigma data to show the performance, but it really high risk to put in into MCU even their low end PIC market.

resistion
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re: China develops phase-change RAM
resistion   4/22/2011 2:07:21 AM
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Some companies have NOR flash roadmap below 65 nm. At least to 4X nm. Beyond that is uncertainty for sure.

_hm
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re: China develops phase-change RAM
_hm   5/8/2011 12:32:44 PM
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Since Microchip's Sanghi is interested in this technology and new products, there will be specific market requirement for PCRAM.

resistion
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re: China develops phase-change RAM
resistion   5/8/2011 3:18:46 PM
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China's interest in PCRAM is not strong. Its interest in RRAM is much stronger.

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