http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/ Engadget Comments for Inductive coupling slashes SSD power consumption http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:26AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:31AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:44AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:53AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 12:38PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/
Less wires means higher density chips.]]>Feb 15th 2009 1:36PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:44AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:47AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:47AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 12:05PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 11:51AMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 12:03PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 12:16PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 4:47PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 12:14PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Nowhere it explains how the power savings are accomplished, but I can only asume that each NAND layer can be turned on and off individually.
They extoll their wireless interface as a way to reduce interconnections between dies. However, they never mention that they reduced the number of channels from 25 wired to 1 wireless channel. What makes things worse is that this 1 wireless channel is bridged up to 63 times. I can't see any high bandwidth coming out of this idea. What makes things worse, the wireless part will undoubtedly increase power usage.
Re-implement your 1 channel idea as wired, non bridged (kinda like 1 SATA connection per die), and you'll have a killer product.]]>Feb 15th 2009 12:21PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Inductive coupling literally means that you integrate functionality that is susceptible to interference.
Plug in a radio, and in the same room flip the switch very slowly, at a certain point you'll here the radio go static as hell and
the lights will flicker ... that's inductive coupling from your light net to your radio. The same thing happens with lightning. Making your SSD listen to this means that every flick of a switch has the possibility of messing up a few bits. True, SSDs are enclosed in the
computer case which shields it, but this means that whenever you remove the case to change a few things, you run the risk of corrupting your system.

Lastly, I'd like to see which ESD devices they're going to put under the bondpads of these dies.


]]>Feb 15th 2009 12:22PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/
No idea whether this is practical other than that, but significantly reducing power consumption is definitely an improvement if they can achieve it. I haven't actually noticed any figures, but I get the impression that right now, SSD power consumption is not all that much better than (small, slow) HD power consumption. That certainly seems wrong to me...]]>Feb 15th 2009 1:07PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 1:16PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Secondly, relay transmission of data from the 1st (closest) chip to the 64th (farthest) chip means it is *extremely* challenging to employ any sort of parallelism (probably impossible).

A 6-chip stack was demonstrated, which is laudable. Don't expect the following anytime soon:
1> Scaling down to 30nm
2> Performance gains
3> Actual adoption by NAND chip suppliers or SSD manufacturers.


Need to report a more balanced view, engadget.]]>Feb 15th 2009 1:20PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/
Skynet says it's a step in the right direction for wireless world domination.]]>Feb 15th 2009 1:27PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/Feb 15th 2009 2:40PMhttp://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/http://www.engadget.com/2009/02/15/inductive-coupling-slashes-ssd-power-consumption/
Wireless isn't inherently more insecure than plain old "wired", we just know how to shield wires. With the right equipment and the (wrong) display (can't remember if it's analog only, probably not), you can pick up the signal that is on it's way to being displayed just by placing the detectors / sensors next to the video cable. ]]>Feb 19th 2009 7:04AM