1、 IEC TS 61189-3-301 Edition 1.0 2016-07 TECHNICAL SPECIFICATION Test methods for electrical materials,printed boards and other interconnection structures and assemblies Part 3-301:Test methods for interconnection structures(printed boards)Appearance inspection method for plated surfaces on PWB IEC T
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11、est methods for electrical materials,printed boards and other interconnection structures and assemblies Part 3-301:Test methods for interconnection structures(printed boards)Appearance inspection method for plated surfaces on PWB INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.180 ISBN 978-2-8322-3
12、550-8 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinside 2 IEC TS 61189-3-301:2016 IEC 2016 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Test spec
13、imens.5 5 Equipment/apparatus.5 5.1 Evaluation of lustre non-uniformity.5 5.2 Evaluation of colour non-uniformity.6 6 Procedure.6 6.1 Outline of the method.6 6.2 Specimen preparation.6 6.3 Imaging of surface roughness/chromaticity distribution.6 6.4 Binarization of images.6 6.5 Extraction of feature
14、 quantities.7 6.6 Derivation of discriminant function.7 6.7 System registration.7 7 Report.8 8 Additional information.8 Annex A(informative)Example of equipment and tested result for lustre non-uniformity.9 A.1 Equipment for lustre non-uniformity inspection.9 A.2 Tested result.9 A.2.1 Surface roughn
15、ess image.9 A.2.2 Binarized image and feature extraction.11 A.2.3 Frequency analysis of feature quantities.12 A.2.4 Final estimate.12 Annex B(informative)Example of tested result for colour non-uniformity inspection.13 B.1 Image analysis of colour non-uniformity.13 B.2 Feature extraction and discrim
16、inant analysis.14 Bibliography.16 Figure 1 Flow chart of the test procedure.6 Figure A.1 Equipment prototype.9 Figure A.2 Images of gold-plating of non-defective and defective products.10 Figure A.3 Images of S-and P-polarized components,and for gold-plating with lustre non-uniformity.11 Figure A.4 Image examples of gold-plating with lustre non-uniformity.11 Figure A.5 Example of frequency analysis of feature quantity.12 Figure A.6 Example of the final estimate of the quality of gold-plating.12
