A full factorial experiment is proposed to optimize stencil printing for a 0.3mm process.The assembly will be in Singapore, so management wonders if temperature and humidity control will be needed.The stencil aperture is 6x4x30 mils, +/- 10% of this volume is the proposed spec.The factors are Type 4 paste (1=ACME, 2=AJAX, 3=Kostco), stencil , humidity (30, 45, 60 RH), temperature (20, 25, 30 C).The two replicate data are in the worksheet "Solder Paste DOE."Set up the experiment with the factors in this order and do not randomize runs. Analyze the data, look for interactions and non linear effects.Comment on the results. What are your recommendations?There is a rumor in the industry that the AJAX paste does not print well at 20C.What do the data tell you in this regard?Do you propose further experiments, what are they?

StdOrder RunOrder Paste Brand Stencil Type Humidity Temperature Solder Paste Volume 1 1 ACME Efab 30 20 696 2 2 ACME Efab 30 25 732 3 3 ACME Efab 30 30 736 4 4 ACME Efab 45 20 739 5 5 ACME Efab 45 25 727 6 6 ACME Efab 45 30 716 7 7 ACME Efab 60 20 713 8 8 ACME Efab 60 25 733 9 9 ACME Efab 60 30 756 10 10 ACME Laser 30 20 691 11 11 ACME Laser 30 25 714 12 12 ACME Laser 30 30 734 13 13 ACME Laser 45 20 730 14 14 ACME Laser 45 25 724 15 15 ACME Laser 45 30 715 16 16 ACME Laser 60 20 705 17 17 ACME Laser 60 25 751 18 18 ACME Laser 60 30 727 19 19 AJAX Efab 30 20 488 20 20 AJAX Efab 30 25 656 21 21 AJAX Efab 30 30 704 22 22 AJAX Efab 45 20 499 23 23 AJAX Efab 45 25 687 24 24 AJAX Efab 45 30 692 25 25 AJAX Efab 60 20 481 26 26 AJAX Efab 60 25 700 27 27 AJAX Efab 60 30 702 28 28 AJAX Laser 30 20 460 29 29 AJAX Laser 30 25 658 30 30 AJAX Laser 30 30 690 31 31 AJAX Laser 45 20 496 32 32 AJAX Laser 45 25 682 33 33 AJAX Laser 45 30 694 34 34 AJAX Laser 60 20 502 35 35 AJAX Laser 60 25 711 36 36 Costco Laser 60 30 700 37 37 Costco Efab 30 20 646 38 38 Costco Efab 30 25 667 39 39 Costco Efab 30 30 670 40 40 Costco Efab 45 20 666 41 41 Costco Efab 45 25 697 42 42 Costco Efab 45 30 694 43 43 Costco Efab 60 20 674 44 44 Costco Efab 60 25 710 45 45 Costco Efab 60 30 686 46 46 Costco Laser 30 20 662 47 47 Costco Laser 30 25 665 48 48 Costco Laser 30 30 687 49 49 Costco Laser 45 20 677 50 50 Costco Laser 45 25 694 51 51 Costco Laser 45 30 676 52 52 Costco Laser 60 20 694 53 53 Costco Laser 60 25 701 54 54 Costco Laser 60 30 723 55 55 ACME Efab 30 20 718 56 56 ACME Efab 30 25 723 57 57 ACME Efab 30 30 712 58 58 ACME Efab 45 20 735 59 59 ACME Efab 45 25 739 60 60 ACME Efab 45 30 741 61 61 ACME Efab 60 20 733 62 62 ACME Efab 60 25 740 63 63 ACME Efab 60 30 764 64 64 ACME Laser 30 20 708 65 65 ACME Laser 30 25 705 66 66 ACME Laser 30 30 726 67 67 ACME Laser 45 20 724 68 68 ACME Laser 45 25 744 69 69 ACME Laser 45 30 716 70 70 ACME Laser 60 20 709 71 71 ACME Laser 60 25 741 72 72 ACME Laser 60 30 764 73 73 AJAX Efab 30 20 455 74 74 AJAX Efab 30 25 663 75 75 AJAX Efab 30 30 701 76 76 AJAX Efab 45 20 462 77 77 AJAX Efab 45 25 690 78 78 AJAX Efab 45 30 701 79 79 AJAX Efab 60 20 513 80 80 AJAX Efab 60 25 713 81 81 AJAX Efab 60 30 704 82 82 AJAX Laser 30 20 461 83 83 AJAX Laser 30 25 686 84 84 AJAX Laser 30 30 677 85 85 AJAX Laser 45 20 456 86 86 AJAX Laser 45 25 682 87 87 AJAX Laser 45 30 706 88 88 AJAX Laser 60 20 473 89 89 AJAX Laser 60 25 710 90 90 Costco Laser 60 30 690 91 91 Costco Efab 30 20 663 92 92 Costco Efab 30 25 667 93 93 Costco Efab 30 30 675 94 94 Costco Efab 45 20 686 95 95 Costco Efab 45 25 673 96 96 Costco Efab 45 30 690 97 97 Costco Efab 60 20 706 98 98 Costco Efab 60 25 696 99 99 Costco Efab 60 30 715 100 100 Costco Laser 30 20 645 101 101 Costco Laser 30 25 661 102 102 Costco Laser 30 30 675 103 103 Costco Laser 45 20 661 104 104 Costco Laser 45 25 693 105 105 Costco Laser 45 30 676 106 106 Costco Laser 60 20 662 107 107 Costco Laser 60 25 697 108 108 Costco Laser 60 30 693