EN 62435-1:2017

Electronic components - Long-term storage of electronic semiconductor devices - Part 1: General

IEC 62435-1:2017 on long-term-storage covers the terms, definitions and principles of long-term-storage that can be used in as an obsolescence mitigation strategy. Long-term storage refers to a duration that can be more than 12 months for products scheduled for long duration storage. Philosophy, good working practice, and general means to facilitate the successful long-term-storage of electronic components are also addressed. This standard cancels and replaces IEC/PAS 62435 published in 2005. This first edition constitutes a technical revision.

Elektronische Bauteile - Langzeitlagerung elektronischer Halbleiterbauelemente - Teil 1: Allgemeines

Composants électroniques - Stockage de longue durée des dispositifs électroniques à semiconducteurs - Partie 1: Généralités

L’IEC 62435-1:2017 relative au stockage de longue durée couvre les termes, les définitions et les principes du stockage de longue durée qui peuvent être utilisés dans le cadre d’une stratégie de réduction de l’obsolescence. Le stockage de longue durée fait référence à une durée qui peut être supérieure à 12 mois, pour un produit destiné à être stocké pendant une durée prolongée. Les concepts, les bonnes pratiques et les moyens généraux de nature à faciliter la réussite d’un stockage de longue durée de composants électroniques sont aussi abordés. La présente norme annule et remplace l'IEC/PAS 62435 publié en 2005. Cette première édition constitue une révision technique.

Elektronske komponente - Dolgoročno skladiščenje elektronskih polprevodniških elementov - 1. del: Splošno (IEC 62435-1:2017)

Ta del standarda IEC 62435 o dolgoročnem skladiščenju zajema določila, definicije in načela dolgoročnega skladiščenja, ki jih je mogoče uporabiti kot strategijo ublažitve zastarelosti. Dolgoročno skladiščenje se nanaša na obdobje, ki je lahko daljše od 12 mesecev, za izdelke, namenjene za dolgoročno skladiščenje. Obravnavana so tudi načela, dobra delovna praksa in splošna sredstva za lažjo uspešno dolgoročno skladiščenje elektronskih komponent.

General Information

• Status: Published
• Publication Date: 27-Apr-2017
• Withdrawal Date: 23-Feb-2020
• ICS: 31.020 - Electronic components in general
• Technical Committee: CLC/TC 47X - Semiconductor devices and trusted chips
• Drafting Committee: IEC/TC 47 - IEC_TC_47
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 28-Apr-2017
• Completion Date: 28-Apr-2017
• Ref Project: SIST EN 62435-1:2017 - Electronic components - Long-term storage of electronic semiconductor devices - Part 1: General (IEC 62435-1:2017)

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2017
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Electronic components - Long-term storage of electronic semiconductor devices - Part 1:
General (IEC 62435-1:2017)
Composants électroniques - Stockage de longue durée des dispositifs électroniques à
semiconducteurs - Partie 1: Généralités (IEC 62435-1:2017)
Ta slovenski standard je istoveten z: EN 62435-1:2017
ICS:
31.080.01 Polprevodniški elementi Semiconductor devices in
(naprave) na splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62435-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2017
ICS 31.020
English Version
Electronic components - Long-term storage of electronic
semiconductor devices - Part 1: General
(IEC 62435-1:2017)
Composants électroniques - Stockage de longue durée des Elektronische Bauteile - Langzeitlagerung elektronischer
dispositifs électroniques à semiconducteurs - Halbleiterbauelemente - Teil 1: Allgemeines
Partie 1: Généralités (IEC 62435-1:2017)
(IEC 62435-1:2017)
This European Standard was approved by CENELEC on 2017-02-24. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62435-1:2017 E
European foreword
The text of document 47/2326/FDIS, future edition 1 of IEC 62435-1, prepared by IEC/TC 47
"Semiconductor devices" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62435-1:2017.
The following dates are fixed:
(dop) 2017-11-24
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2020-02-24
• latest date by which the national standards conflicting with
the document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62435-1:2017 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60068-2-17:1994 NOTE Harmonized as EN 60068-2-17:1994 (not modified).
IEC 60068-2-20:2008 NOTE Harmonized as EN 60068-2-20:2008 (not modified).
IEC 60749-20-1 NOTE Harmonized as EN 60749-20-1.
IEC 60749-21 NOTE Harmonized as EN 60749-21.
IEC 61340-5-1:2007 NOTE Harmonized as EN 61340-5-1:2007 (not modified).
IEC/TR 61340-5-2:2007 NOTE Harmonized as CLC/TR 61340-5-2:2008 (not modified).
IEC 62258 NOTE Harmonized in EN 62258 / CLC/TR 62258 series.
IEC/TR 62258-3 NOTE Harmonized as CLC/TR 62258-3.
IEC 62402 NOTE Harmonized as EN 62402.
IEC 62435-2 NOTE Harmonized as EN 62435-2.
IEC 62435-5 NOTE Harmonized as EN 62435-5.
ISO 14644 NOTE Harmonized in EN ISO 14644 series.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60749-20-1 -  Semiconductor devices - Mechanical EN 60749-20-1 -
and climatic test methods - Part 20-1:
Handling, packing, labelling and
shipping of surface-mount devices
sensitive to the combined effect of
moisture and soldering heat
IEC 62435-1 ®
Edition 1.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electronic components – Long-term storage of electronic semiconductor

devices –
Part 1: General
Composants électroniques – Stockage de longue durée des dispositifs

électroniques à semiconducteurs –

Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.020 ISBN 978-2-8322-3835-6

– 2 – IEC 62435-1:2017 © IEC 2017

CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 9
4 Purpose of long-term storage . 9
4.1 General . 9
4.2 Storage decision criteria . 10
4.2.1 Advantages . 10
4.2.2 Hazards . 10
4.2.3 Storage cost . 11
4.2.4 Decision criteria . 12
4.3 Reasons and methodology . 12
4.4 Market forces . 13
4.5 Risk mitigation and insurance . 13
4.6 Obsolescence mitigation . 13
5 Logistics . 13
5.1 Procurement requirements . 13
5.1.1 List of components . 13
5.1.2 Quantity of components to be stored . 14
5.1.3 When is it worth keeping in stock? . 14
5.1.4 Procurement recommendations . 14
5.2 Elementary storage unit . 15
5.3 Stock management . 15
5.4 Redundancy . 15
5.5 Storage regimen . 15
5.5.1 Storage concerns . 15
5.5.2 Identification and traceability . 15
5.6 Removal from storage . 16
5.6.1 Precautions . 16
5.6.2 Stock rotation . 16
5.7 Periodic check of the components . 16
5.7.1 General . 16
5.7.2 Objectives . 17
5.7.3 Periodicity . 17
5.7.4 Tests during periodic check . 17
6 Storage considerations for devices after card (or other) attachment. 17
7 Handling . 18
8 Inspection . 18
9 Inventory control process . 18
10 Transportation . 18
11 Lead finishes . 18
12 Kitting and lot control . 18

IEC 62435-1:2017 © IEC 2017 – 3 –
13 Validation . 19
14 Unplanned storage and types of storage . 19
14.1 Types of storage . 19
14.2 Unplanned storage . 19
15 Other things to store in addition to the components . 20
15.1 Relevant data . 20
15.2 Equipment . 20
16 Storage facility . 20
16.1 Cost of ownership . 20
16.2 Physical security and safety . 20
16.3 Location and ambient environment . 20
17 Policies . 21
17.1 General . 21
17.2 Supply chain . 21
17.3 Re-starting the manufacturing chain . 21
18 Legislation and environmental issues . 21
Annex A (informative) Example checklist for project managers . 22
Annex B (normative) Example checklist for long-term storage facilities . 24
Annex C (informative) Example of a component list .
...