Integrating the TRIZ and Taguchi's Method in the Optimization of Processes Parameters for SMT

Table 2

Experimental design using the 𝐿₉(3⁴) orthogonal array and results.

Run order	𝐴	𝐵	𝐶	𝐷	𝑆/𝑁 ratio	Mean
	Squeegee pressure	Squeegee angle	Squeegee speed	Ejection speed
1	1	1	1	1	21.2140	0.1725
2	1	2	2	2	21.5987	0.1700
3	1	3	3	3	25.8433	0.1600
4	2	1	2	3	23.3596	0.0850
5	2	2	3	1	19.8540	0.1475
6	2	3	1	2	25.8433	0.1600
7	3	1	3	2	18.1639	0.0775
8	3	2	1	3	20.8458	0.0900
9	3	3	2	1	20.1436	0.1525