1、 IEC TR 63017 Edition 1.0 2015-12 TECHNICA L R EPOR T Flexible printed circuit boards(FPCBs)Met hod of compensation of impedance v ariat ions IEC TR 63017:2015-12(en)colourinsideInternational Electrotechnical Commission International Electrotechnical Commission IEC TR 63017 Edit ion 1.0 2015-12 TECH
2、NICA L R EPOR T Flexible print ed circuit boards(FPCBs)Met hod of compensat ion of impedance v ariat ions INTERNATIONA L ELECTROTECHNICA L COMMISSION ICS 31.180 ISBN 978-2-8322-3083-1 R egist er ed tr ademar k of t he Int er national Electr ot echnical Commission W arning!Make sure that y ou obtaine
3、d this publication from an authorized distributor.colourinsideInternational Electrotechnical Commission 2 IEC TR 63017:2015 IEC 2015 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Apparatus.5 3.1 Time domain reflectometry.5 3.2 Block diagram for impedance measuring.5 4 Test specimen.6 4.1
4、General.6 4.2 Structure.6 4.3 Test method.7 4.4 Calculation.8 5 Report.9 Annex A(normative)Block diagram for impedance measuring with TDR.10 Annex B(informative)Theoretical background.11 Annex C(informative)Example of an impedance measurement with TDR.12 Annex D(informative)Hand contact effect.13 An
5、nex E(informative)Test result.14 E.1 Shield 1 FPCB.14 E.2 Shield 2 FPCB.15 Bibliography.16 Figure 1 TDR test system.5 Figure 2 Two types of impedance structure of FPCB.6 Figure 3 Schematic diagram of a test specimen.7 Figure 4 Impedance value of two type FPCB(bare and shield).8 Figure 5 Compensation
6、 value(L)of the Cu line width for the shield FPCB.9 Figure A.1 TDR test system according to IPC 2141a-9-1.10 Figure A.2 TDR test system according to Agilent TDR 54754A.10 Figure B.1 Two types of impedance structure of FPCBs.11 Figure B.2 Comparison of the impedance value of a bare FPCB versus a shie
7、ld FPCB.11 Figure C.1 Photographic view of the impedance measurement with TDR.12 Figure D.1 Effect of impedance variation by hand contact for bare FPCB.13 Figure E.1 Measurement result of the test specimen for shield 1 FPCB.14 Figure E.2 Measurement result of the test specimen for shield 2 FPCB.15 T
8、able E.1 Cross-section of test specimen with using shield 1 FPCB.14 Table E.2 Cross-section of test specimen with using shield 2 FPCB.15 International Electrotechnical Commission IEC TR 63017:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FLEXIBLE PRINTED CIRCUIT BOARDS(FPCBs)METHOD OF
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