Research Article

A Modified Lotka–Volterra Model for Diffusion and Substitution of Multigeneration DRAM Processing Technologies

Table 1

Revenues and market share for old and new processing technologies from 2005 Q1 to 2013 Q4.

QuarterRevenue (millions USD)Market share
90 nm80 nm70 nm90 nm80 nm70 nm
OldNewOldNewOldNewOldNewOldNewOldNew

05Q16574<16574<16574<11<0.011<0.011<0.01
05Q25715<15715<15715<11<0.011<0.011<0.01
05Q36394<16394<16394<11<0.011<0.011<0.01
05Q46372<16372<16372<11<0.011<0.011<0.01
06Q164221316553<16553<10.980.021<0.011<0.01
06Q271584577615<17615<10.940.061<0.011<0.01
06Q384556369091<19091<10.930.071<0.011<0.01
06Q48897169510592<110592<10.840.161<0.011<0.01
07Q16961270794751939668<10.720.280.980.021<0.01
07Q243802920671658471541460.60.40.920.080.980.02
07Q3358443806929103576453190.450.550.870.130.960.04
07Q4205541734484174452949340.330.670.720.280.850.15
08Q11408445934622405445714080.240.760.590.410.760.24
08Q21042547028003712429822140.160.840.430.570.660.34
08Q3758613422054687379131010.110.890.320.680.550.45
08Q428637938163263171323660.070.930.20.80.420.58
09Q1953073222294691922490.030.970.070.930.290.71
09Q2813984203386277232930.020.980.050.950.190.81
09Q31225991245586885652570.020.980.040.960.140.86
09Q4878595174850895577210.010.990.020.980.110.89
10Q1939195186910283684520.010.990.020.980.090.91
10Q2104103172081021383495870.010.990.020.980.080.92
10Q31081067121610563647101320.010.990.020.980.060.94
10Q4868558173847134682980.010.990.020.980.040.96
11Q1838220166813733279710.010.990.020.980.040.96
11Q2<18147<181471637984<0.011<0.0110.020.98
11Q3<16565<16565666499<0.011<0.0110.010.99
11Q4<16453<16453<16453<0.011<0.011<0.011
12Q1<16271<16271<16271<0.011<0.011<0.011
12Q2<17023<17023<17023<0.011<0.011<0.011
12Q3<16429<16429<16429<0.011<0.011<0.011
12Q4<16864<16864<16864<0.011<0.011<0.011
13Q1<16870<16870<16870<0.011<0.011<0.011
13Q2<18531<18531<18531<0.011<0.011<0.011
13Q3<19300<19300<19300<0.011<0.011<0.011
13Q4<19748<19748<19748<0.011<0.011<0.011

Data sources: DRAMeXchange, IHS iSuppli, & Morgan Stanley Research (2014).
Data collation: Industrial Technology Research Institute of Taiwan & Taiwan Institute of Economic Research.