To: Zeev Hed who wrote (42664 ) 5/21/2000 6:43:00 PM From: Bilow Read Replies (2) | Respond to of 93625
Hi Zeev Hed; Re learning curve and yields in semiconductors... You wrote: Scumbria, all that is required is "narrower" specifications or better tolerances, I view this as an integral part of the learning curve. High yields in traditional chip production came about by the continuous tightening of the specs, and this part of the equation, IMHO, is evolutionary and not a major technical road block. Please consider the following: (1) The memory makers have claimed for several years that DDR was easier to manufacture than RDRAM, and that DDR was about as difficult as SDRAM. (2) The memory makers are now producing large amounts of DDR for graphics cards. The pricing on these chips is already well below the pricing of RDRAM chips, even though much more RDRAM has been produced, to date, by the industry, and even though, to date, RDRAM has about as many major suppliers and has had a longer history of production. It seems to be the case that DDR has already crossed RDRAM in terms of learning curve. One might suppose that the movement of production into DDR instead of RDRAM would tend to postpone the climbing of the learning curve for RDRAM. The concept that RDRAM could possibly be built almost as cheaply as SDRAM at some indefinite point in the future may have little relevance to the eventual acceptance of the technology. Especially given the fact that the other technologies are not standing still. Wouldn't you say that, generally speaking, a race is won by the participant with the head start? And so, given their head start, why isn't Rambus winning this race? On a purely theoretical basis, do you suppose that it is at all possible that if a technology had a slow enough learning curve, that that would be enough to prevent its widespread use particularly when easier alternatives were readily available? -- Carl P.S. In the words of the great economist, in the long run we are all dead. (Which is why people should consider trading instead of long term investing.)