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Technology Stocks : WDC/Sandisk Corporation -- Ignore unavailable to you. Want to Upgrade?


To: NY Stew who wrote (8108)11/13/1999 8:58:00 PM
From: gdichaz  Read Replies (1) | Respond to of 60323
 
NY Stew: Perhaps there is little discussion on the "multi-level cell" because you haven't been here enough. Welcome. Great to see one of the most respected posters on several threads here.

Eli's having a telescope sounds great to me, but I don't really understand (yet) the multi-level cell technology you are describing or the strength of the IPR's related to it. Could you spell it out a bit for those like me who are willing to learn please. Chaz



To: NY Stew who wrote (8108)11/14/1999 1:46:00 AM
From: Binx Bolling  Respond to of 60323
 
NY Stew, you write,

"My sense is that Eli has a telescope on his desk as well as microscope."

But he has no polished crystal ball!

I ask this thread, which is the greatest sin for the leader, the entrepreneur, the calculating engineer:

To over-estimate demand or under-estimate demand for one's product?

Dr. Eli is closer to knowing the need for his
product than any of us, yet he owns such a small percentage of his/our company. Tis Tis

And why doesn't he broadcast his conference calls on the internet?



To: NY Stew who wrote (8108)11/14/1999 7:27:00 PM
From: Artslaw  Read Replies (3) | Respond to of 60323
 
Why is there so little discussion on this thread concerning the multi-level cell and Sandisk's superior IP in this area?

I think there has been plenty of talk with regard to Sandisk's superior IP in general. For multi-level cell technology specifically, Intel has been doing it for a couple years (StrataFlash), so I don't think Sandisk has any stranglehold there.

Just to be contrary, let me say that the multi-level cell is no big deal (besides being technically "cool"). What people may not realize is that it takes a whole lot of additional circuitry (better sense amps for reads, better write-verification circuitry, etc.) to support multi-level cells. It also makes the reliability inherently more problematic (since you have less voltage range to call a "1").

All in all, it doesn't reduce the cost/bit by as much as you would hope and always runs the risk of reducing your working-product yield (which can then make the cost/bit increase!). It can also increase your write-time, requiring additional clever tricks (at the cost of silicon space) to hide the fact. Thus, what you thought was a doubling in capacity for the same silicon space turns out to be considerably less than 2X (I don't have any numbers--talk to Eli!).

I'd say the double density is a good idea, but don't think it is that great for the bottom line--just keeping the forward progress.

Steve