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To: wily who wrote (103691)	5/26/2000 1:27:00 PM
From: wily	Respond to of 186894

Food for thought (based on a 1/4" X 1/4" memory area, where cell size = F*L^2). Also, note that Samsung is already in limited production @ .12um: L F cell size cells Mcells Mbits/chip Gbytes per computer (um^2) per um^2 per chip @ 3bits/cell @ 3 DIMMs per mobo & 16 chips per DIMM .25 12 0.75 1.33 53.7 .18 12 .389 2.57 103 .18 6 .194 5.14 207 621 3.7 .18 4 .130 7.72 311 933 5.6 .18 2 .0648 15.4 622 1866 11.2 .12 6 .0864 11.6 466 1400 8.4 .12 4 .0576 17.4 700 2100 12.6 .12 2 .0288 34.7 1400 4200 25.2 If the cache area on a cumine is 20mm^2, then at F=4 and L=.12um (not too far off, IMO), you could fit 43MBytes (129MBytes w/3bits/cell) of OUM on the die. wily