IC Knowledge - DRAM data

DRAM Trends

This table represents "average" die sizes versus date and linewidth. Different manufactures may have different dies sizes (sometimes very different) even at the same linewidth This table is calculated from an extensive database of die size versus linewidth, manufacturer and date maintained by IC Knowledge.

Year	Product	Process type	Line width (µm)	Transis tors (K)	Mask layers	Cell Construction			# of Layers		Die size (mm²)
Year	Product	Process type	Line width (µm)	Transis tors (K)	Mask layers	Trans	Type	Size (µm)	Poly	Metal	Die size (mm²)
1970	1Kbit	PMOS	8.0	4	6	3T	P	2,400	1	1	10.1
1974	4Kbit	NMOS	8.0	8	6	1T	P	1,280	1	1	14.5
1976	16Kbit	NMOS	5.0	16	7	1T	P	500	2	1	19.4
1979	64Kbit	NMOS	3.0	66	8-10	1T	P	180	2	1	31.0
1982 1984	256Kbit	NMOS CMOS	2.0 1.5	262	---	1T	P	70 40	2	1	45.0 27
1986 1987	1Mbit	CMOS	1.2 1.0	1,049	18	1T	P, S, T	25	2-3	1	70 50
1988 1991 1994	4Mbit	CMOS	0.80 0.50 0.35	4,194	20-25	1T	S, T	12 4.69 2.30	2-3	2	105 44 23
1991 1991 1994 1996	16Mbit	CMOS	0.50 0.50 0.35 0.30	16.777	---	1T	S, F, T	4.2 2.06 1.51	3-4	2	160 [1] 112 54 44
1994 1994 1996 1997 1998 1999 2000 2001	64Mbit	CMOS	0.35 0.35 0.30 0.25 0.23 0.21 0.18 0.15	67,109	---	1T	H, C, F, T		3-5	2-3	229 [1] 139 105 75 65 55 41 29
1996 1997 1998 1999 2000 2001 2002	128Mbit	CMOS	0.30 0.25 0.23 0.21 0.18 0.15 0.13	131,072	---	1T	H, C, F, T	---	4-5	2-3	178 128 110 93 70 50 39
1997 1997 1998 1999 2000 2001 2002 2003 2004	256Mbit	CMOS	0.25 0.25 0.23 0.21 0.18 0.15 0.13 0.11 0.09	262,144	---	1T	HC, T, HK, PI	---	4-5	2-3	300 [1] 225 193 164 123 88 68 50 35
1998 1999 2000 2001 2002 2003 2004	512Mb	CMOS	0.23 0.21 0.18 0.15 0.13 0.11 0.09	524,288	'---	1T	HC, T, HK, PI	'---	4-5	3	329 278 210 150 115 85 59
2000 2001 2002 2003 2004	1Gb	CMOS	0.18 0.15 0.13 0.11 0.09	1,048,576	'----	1T	HC, T, HK, PI	'---	4-5	3	400 [1] 264.7 203.6 149.8 103.7

[1] Indicates die size at introduction, die quickly shrink from the size at introduction even for the same linewidth through design improvements.