Research Article

Fuzzy TOPSIS for Multiresponse Quality Problems in Wafer Fabrication Processes

Table 3

Weighted fuzzy decision matrix.

NumberDefect number ( )Density ( )Deposition rate ( )

1(0.0000, 0.0000, 0.0002)(0.0147, 0.0167, 0.0167)(0.0156, 0.0179, 0.0180)
2(0.0004, 0.0004, 0.0138)(0.0395, 0.0449, 0.0446)(0.0395, 0.0453, 0.0451)
3(0.0057, 0.0188, 0.0304)(0.0448, 0.0506, 0.0511)(0.0446, 0.0509, 0.0515)
4(0.0017, 0.0018, 0.0034)(0.0160, 0.0182, 0.0180)(0.0390, 0.0447, 0.0444)
5(0.1111, 0.1409, 0.1898)(0.0346, 0.0391, 0.0386)(0.0793, 0.0903, 0.0895)
6(0.0385, 0.0741, 0.2274)(0.0217, 0.0247, 0.0247)(0.0533, 0.0611, 0.0613)
7(0.0718, 0.0737, 0.1697)(0.0254, 0.0288, 0.0287)(0.0827, 0.0947, 0.0945)
8(0.1361, 0.2238, 0.4772)(0.0329, 0.0386, 0.0398)(0.1100, 0.1300, 0.1345)
9(0.1841, 0.2147, 0.4938)(0.0298, 0.0338, 0.0333)(0.1249, 0.1425, 0.1408)
10(0.0000, 0.0000, 0.0003)(0.0258, 0.0292, 0.0289)(0.0269, 0.0307, 0.0304)
11(0.0000, 0.0001, 0.0003)(0.0191, 0.0217, 0.0215)(0.0217, 0.0247, 0.0246)
12(0.0045, 0.0219, 0.0733)(0.0435, 0.0496, 0.0488)(0.0422, 0.0484, 0.0478)
13(0.0020, 0.0121, 0.0465)(0.0204, 0.0233, 0.0231)(0.0573, 0.0658, 0.0654)
14(0.0019, 0.0070, 0.0091)(0.0216, 0.0244, 0.0241)(0.0496, 0.0565, 0.0560)
15(0.1593, 0.1747, 0.2186)(0.0241, 0.0272, 0.0273)(0.0593, 0.0675, 0.0678)
16(0.0003, 0.0022, 0.0033)(0.0235, 0.0266, 0.0262)(0.0834, 0.0952, 0.0939)
17(0.1615, 0.1836, 0.5477)(0.0298, 0.0346, 0.0358)(0.1105, 0.1294, 0.1343)
18(0.2532, 0.2908, 0.8081)(0.0272, 0.0308, 0.0303)(0.0993, 0.1132, 0.1119)