Rambus (RMBS) - Eagle or Penguin Message Board

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Technology Stocks : Rambus (RMBS) - Eagle or Penguin

RMBS 88.13

+1.0%

Nov 21 9:30 AM EST

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To: Scumbria who wrote (39970)	4/15/2000 1:55:00 PM
From: Zeev Hed	Read Replies (2) of 93625

Scumbria, you get "faster" transistors in two ways, you reduce features (good for cost) and you increase threshold voltages (bad for heat dissipation) (and that a very "simplistic" description). I am not sure about DDR for the simple reason that not enough of these (and their associated chip sets) are out there. One thing, I would postulate, is that as speed increases, engineers will have to learn to perfection the religion of transmission lines, since at the 500 MHZ and above range, every parasitic capacitance, mismatched terminations, open lines etc will be a source of headaches (as we have learned from the third open connectors in the early 820 fiasco). I am sure that similar problems are going to crop up for DDR. Sure, DDR is a more evolutionary development (of SDRAM) when compared to RDRAM, but that is also its Achiles heel, it frequency extensions capabilities are limited just for that reason. Zeev

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