Toru San, the following may be helpful:
1. Quality Assessment of Printed circuit Boards by Preben Lund
Publisher Bishop Graphics
5388 Sterling Center Drive
P.O. Box 5007
Westlake Village, Califonia, 91359-5007
2. Printed circuit Technology by Norman S. Einarson
Printed Circuit Technology
P.O. Box 334
Burlington, MA 01803
Tel (617) 272-0938
Hope this helps
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