IEC 62496-2-5:2022

Optical circuit boards - Basic test and measurement procedures - Part 2-5: Flexibility test for flexible opto-electric circuits

IEC 62496-2-5:2022 defines a test method for folding flexibility inspection of flexible opto-electric circuits with a flexibility tester endurance tester and presents a guideline for a step stress test method for finding the predetermined minimum mechanical folding radii below which the flexible opto-electric circuits can be damaged by intended folding distortion. Here, test samples are used instead of products for the flexibility test of their flexible opto-electric circuits, and the test samples have the same material, layer structure, processing technology and equipment as the products.

Cartes à circuits optiques - Procédures fondamentales d’essais et de mesures - Partie 2-5: Essai de flexibilité pour les circuits optoélectriques souples

IEC 62496-2-5:2022 définit une méthode d’essai pour l’examen de la flexibilité au pliage des circuits optoélectriques souples au moyen d’un appareil de contrôle de la flexibilité, et fournit un guide qui présente une méthode d’essai sous contrainte échelonnée destinée à déterminer les rayons de pliage mécanique minimaux prédéterminés en deçà desquels les circuits optoélectriques souples peuvent être endommagés par la distorsion induite par un pliage intentionnel. Des échantillons d’essai sont utilisés ici à la place des produits pour l’essai de flexibilité de leurs circuits optoélectriques souples, et ces échantillons d’essai sont constitués du même matériau, ont la même structure de couches et utilisent la même technologie et les mêmes équipements de traitement que les produits eux-mêmes.

General Information

• Status: Published
• Publication Date: 06-Dec-2022
• ICS: 33.180.01 - Fibre optic systems in general
• Technical Committee: TC 91 - Electronics assembly technology
• Drafting Committee: JWG 9 - TC 86/JWG 9
• Current Stage: PPUB - Publication issued
• Start Date: 30-Dec-2022
• Completion Date: 07-Dec-2022

Standards Content (Sample)

IEC 62496-2-5 ®
Edition 1.0 2022-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical circuit boards – Basic test and measurement procedures –
Part 2-5: Flexibility test for flexible opto-electric circuits

Cartes a circuits optiques – Procédures fondamentales d’essais et de mesures –
Partie 2-5: Essai de flexibilité pour les circuits optoélectriques souples

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IEC 62496-2-5 ®
Edition 1.0 2022-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical circuit boards – Basic test and measurement procedures –

Part 2-5: Flexibility test for flexible opto-electric circuits

Cartes a circuits optiques – Procédures fondamentales d’essais et de mesures

–
Partie 2-5: Essai de flexibilité pour les circuits optoélectriques souples

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.01 ISBN 978-2-8322-6119-4

– 2 – IEC 62496-2-5:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Apparatus . 7
4.1 General description . 7
4.2 Flexibility tester for flexibility test of FOECBs . 8
4.2.1 FOECBs test sample of fibre optical types . 8
4.2.2 FOECBs test sample of planer waveguide optical circuit types . 8
4.3 O-E signal control source . 9
4.4 Laser source . 9
4.5 Photo detector . 9
4.6 Folding jig . 9
4.7 Relay switch . 10
4.8 Main controller . 10
5 Test sample . 10
5.1 FOECB test samples of optical fibre-types . 10
5.2 FOECB test samples of planar optical waveguide-types . 11
6 Procedures . 13
6.1 For test samples of optical fibre-types . 13
6.1.1 Preparing test samples . 13
6.1.2 Initial optical and electrical performance measurement . 13
6.1.3 Setting the test sample . 13
6.1.4 Flexibility measurement . 14
6.1.5 Final optical and electrical performance measurement . 14
6.1.6 Mechanical performance measurement . 14
6.2 For test samples of the planar optical waveguide-types. 14
6.2.1 Preparing test samples . 14
6.2.2 Initial optical and electrical performance measurement . 14
6.2.3 Setting the test sample . 15
6.2.4 Flexibility measurement . 15
6.2.5 Final optical and electrical performance measurement . 15
6.2.6 Mechanical characteristic measurement . 16
7 Report . 16
Annex A (informative) Detail requirement for structure of FOECB test samples of
optical fibre-types . 17
Annex B (informative) Requirement for structure of FOECB test samples of planar
optical waveguide-types . 18
Annex C (informative) Guideline for flexibility folding jig setting conditions of FOECB
test samples . 19
Bibliography . 20

Figure 1 – Schematic diagram of flexible opto-electric circuit board (top view) . 7
Figure 2 – Overview of the folding jig . 8
Figure 3 – Schematic diagram of the flexibility test system for fibre optical circuits . 8

Figure 4 – Schematic diagram of the flexibility test system for planar waveguide optical
circuits . 9
Figure 5 – Flexibility folding jigs (from the left, folding radius r is 1,0 mm, 2,0 mm, 3,0

mm, 4,0 mm, 5,0 mm and 10,0 mm) . 10
Figure 6 – Schematic diagram of FOECB test samples of optical fibre-types . 11
Figure 7 – Schematic diagram of FOECB test samples of planar optical waveguide-
types. 12
Figure B.1 – Schematic diagram of the flexibility test system for planar waveguide
optical circuits . 18
Figure C.1 – An example of measurement result of optical loss versus bending
diameter . 19

– 4 – IEC 62496-2-5:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL CIRCUIT BOARDS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-5: Flexibility test for flexible opto-electric circuits

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