SIST-TP CLC/TR 61340-5-2:2009
Electrostatics -- Part 5-2: Protection of electronic devices from electrostatic phenomena - User guide
Electrostatics -- Part 5-2: Protection of electronic devices from electrostatic phenomena - User guide
This technical report has been developed to support IEC 61340-5-1. The controls and limits referenced in this standard were developed to protect devices that are susceptible to discharges of 100 V or greater using the human body model test method. However, the general concepts are still valid for devices that are susceptible to discharges of less than 100 V.
Elektrostatik -- Teil 5-2: Schutz von elektronischen Bauelementen gegen elektrostatische Phänomene - Benutzerhandbuch
Electrostatique -- Partie 5-2: Protection des dispositifs électroniques contre les phénomènes électrostatiques - Guide d'utilisation
Le présent rapport technique a été élaboré comme lignes directrices à la CEI 61340-5-1.
Les contrôles et les limites cités en référence dans la présente norme ont été établis pour protéger les dispositifs sensibles aux décharges de 100 V ou plus en utilisant la méthode d'essai du modèle du corps humain. Cependant, les concepts généraux restent valables pour les dispositifs sensibles aux décharges de moins de 100 V.
Les modifications principales par rapport à l'édition précédente sont les suivantes:
La présente version de la CEI 61340-5-2 a été modifiée afin de fournir des lignes directrices aux utilisateurs de la CEI 61340-5-1. Le texte a été disposé de manière à suivre les exigences de la CEI 61340-5-1 le plus fidèlement possible, ainsi que pour donner des lignes directrices spécifiques relatives à chacune des exigences de la CEI 61340-5-1.
Le contenu du corrigendum de mai 2009 a été pris en considération dans cet exemplaire.
Elektrostatika - 5-2. del: Zaščita elektronskih naprav pred elektrostatičnimi pojavi - Vodilo za uporabnike (IEC/TR 61340-5-2:2007)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TP CLC/TR 61340-5-2:2009
01-september-2009
(OHNWURVWDWLNDGHO =DãþLWDHOHNWURQVNLKQDSUDYSUHGHOHNWURVWDWLþQLPLSRMDYL
9RGLOR]DXSRUDEQLNH ,(&75
Electrostatics -- Part 5-2: Protection of electronic devices from electrostatic phenomena -
User guide
Elektrostatik -- Teil 5-2: Schutz von elektronischen Bauelementen gegen elektrostatische
Phänomene - Benutzerhandbuch
Electrostatique -- Partie 5-2: Protection des dispositifs électroniques contre les
phénomènes électrostatiques - Guide d'utilisation
Ta slovenski standard je istoveten z: CLC/TR 61340-5-2:2008
ICS:
17.220.99 Drugi standardi v zvezi z Other standards related to
elektriko in magnetizmom electricity and magnetism
31.020 Elektronske komponente na Electronic components in
splošno general
SIST-TP CLC/TR 61340-5-2:2009 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
---------------------- Page: 2 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
TECHNICAL REPORT
CLC/TR 61340-5-2
RAPPORT TECHNIQUE
April 2008
TECHNISCHER BERICHT
ICS 17.220.99; 29.020 Supersedes EN 61340-5-2:2001
English version
Electrostatics -
Part 5-2: Protection of electronic devices
from electrostatic phenomena -
User guide
(IEC/TR 61340-5-2:2007)
Electrostatique - Elektrostatik -
Partie 5-2: Protection des dispositifs Teil 5-2: Schutz von elektronischen
électroniques contre les phénomènes Bauelementen gegen elektrostatische
électrostatiques - Phänomene -
Guide d'utilisation Benutzerhandbuch
(CEI/TR 61340-5-2:2007) (IEC/TR 61340-5-2:2007)
This Technical Report was approved by CENELEC on 2008-02-15.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 61340-5-2:2008 E
---------------------- Page: 3 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
CLC/TR 61340-5-2:2008 – 2 –
Foreword
The text of the Technical Report IEC/TR 61340-5-2:2007, prepared by IEC TC 101, Electrostatics, was
submitted to the vote in accordance with the Internal Regulations, Part 2, Subclause 11.4.3.3 (simple
majority) and was approved by CENELEC as CLC/TR 61340-5-2 on 2008-02-15.
This Technical Report supersedes EN 61340-5-2:2001.
The main changes with respect to EN 61340-5-2:2001 are listed below:
CLC/TR 61340-5-2:2008 has been modified to provide guidance for users of EN 61340-5-1. The text
has been arranged to follow the requirements of EN 61340-5-1 as closely as possible as well as
providing specific guidance on each of the requirements of EN 61340-5-1.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Report IEC/TR 61340-5-2:2007 was approved by CENELEC as a Technical
Report without any modification.
__________
---------------------- Page: 4 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
– 3 – CLC/TR 61340-5-2:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
1) 2)
IEC 60749-26 Semiconductor devices - Mechanical and EN 60749-26
- 2006
climatic test methods -
Part 26: Electrostatic discharge (ESD)
sensitivity testing - Human body model
(HBM)
1) 2)
IEC 61340-2-1 - Electrostatics - EN 61340-2-1 2002
Part 2-1: Measurement methods - Ability of
materials and products to dissipate static
electric charge
1) 2)
IEC 61340-2-3 - Electrostatics - EN 61340-2-3 2000
Part 2-3: Methods of test for determining the
resistance and resistivity of solid planar
materials used to avoid electrostatic charge
accumulation
1) 2)
IEC 61340-4-1 - Electrostatics - EN 61340-4-1 2004
Part 4-1: Standard test methods for specific
applications - Electrical resistance of floor
coverings and installed floors
1) 2)
IEC 61340-4-3 - Electrostatics - EN 61340-4-3 2001
Part 4-3: Standard test methods for specific
applications - Footwear
1) 2)
IEC 61340-4-5 - Electrostatics - EN 61340-4-5 2004
Part 4-5: Standard test methods for specific
applications - Methods for characterizing the
electrostatic protection of footwear and
flooring in combination with a person
1) 2)
IEC 61340-5-1 - Electrostatics - EN 61340-5-1 2007
Part 5-1: Protection of electronic devices
from electrostatic phenomena - General
requirements
1)
ANSI/ESD STM2.1 - Standard Test Method for the protection of - -
electrostatic discharge susceptible items -
Garments
1)
ANSI/ESD STM3.1 - Standard Test Method for the protection of - -
electrostatic discharge susceptible items -
Ionization
———————
1)
Undated reference.
2)
Valid edition at date of issue.
---------------------- Page: 5 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
---------------------- Page: 6 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
IEC/TR 61340-5-2
Edition 1.0 2007-08
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Electrostatics –
Part 5-2: Protection of electronic devices from electrostatic phenomena –
User guide
Electrostatique –
Partie 5-2: Protection des dispositifs électroniques contre les phénomènes
électrostatiques – Guide d’utilisation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 17.220.99; 29.020 ISBN 2-8318-9175-2
---------------------- Page: 7 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
– 2 – TR 61340-5-2 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.8
2 Normative references .8
3 Terms and definitions .9
4 ESD control program plan .9
4.1 Developing an ESD control program plan .9
4.1.1 Assignment of an ESD coordinator .9
4.1.2 Determination of part ESD sensitivity.9
4.1.3 Initial process and organizational assessment .9
4.1.4 Documentation of ESD control program plan .10
4.1.5 Tailoring .11
4.2 Development of a training plan .11
4.2.1 Personnel training .11
4.3 Development of a compliance verification plan .13
4.3.1 Introduction .13
4.3.2 ESD control items.13
4.3.3 Verification frequency.14
4.3.4 Type of verifications .14
4.3.5 ESD control item limits .14
4.3.6 Test methods.14
4.3.7 Test equipment.15
4.3.8 Auditor skills.15
4.3.9 Reporting of audit findings.15
4.4 Grounding/bonding systems .18
4.4.1 Introduction .18
4.4.2 Basic grounding requirements .18
4.4.3 Additional grounding considerations .20
4.4.4 Verification of ESD grounding system.21
4.4.5 Verification of proper installation of ESD control items.22
4.5 Personnel grounding .22
4.5.1 System requirements.22
4.5.2 Wrist strap system.23
4.5.3 Footwear-flooring system .23
4.6 Protected areas (EPA).25
4.7 ESD control items .26
4.7.1 Work surfaces .26
4.7.2 Wrist straps .29
4.7.3 Static protective floor materials .33
4.7.4 Footwear .38
4.7.5 Static protective seating .39
4.7.6 Ionization.40
4.7.7 Garments .51
4.7.8 Storage racks and shelving.54
4.7.9 Mobile equipment .55
---------------------- Page: 8 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
TR 61340-5-2 © IEC:2007 – 3 –
4.8 Packaging electronic products for shipment and storage .56
4.8.1 Introduction and purpose .56
4.8.2 Definitions .56
4.8.3 Selecting/designing the right package .57
4.9 Marking .60
4.9.1 Marking of assemblies and equipment .60
4.9.2 Marking of packaging .61
4.9.3 Other marking considerations .62
Annex A (informative) Example ESD control document based on IEC 61340-5-1 .63
Annex B (informative) ESD control element considerations .69
Figure 1 – Example audit report showing current status of ESD program .16
Figure 2 – Example audit report showing target for manufacturing line.17
Figure 3 – Example audit report showing audit trend report.17
Figure 4a – North American electrical power system.19
Figure 4b – Malaysia electrical power system .19
Figure 4c – UK electrical power system – Single phase system .19
Figure 4 – Country-specific electrical power systems .19
Figure 5 –Example of individually grounded benches - Recommended.20
Figure 6 – Example of a series ground connection of benches – Not recommended.21
Figure 7 – Relationship between body voltage and resistance to ground.23
Figure 8 – Voltage reading on person walking across grounded conductive floor whilst
wearing two heelstraps .24
Figure 9 – Ionization by alpha radiation .42
Figure 10 – Corona ionization – Positive.42
Figure 11 – Corona ionization – Negative .42
Figure 12 – ESD sensitive part or assembly.61
Figure 13 – Example of a warning label for ESDS .61
Figure 14 – Example of a packaging label.62
Figure 15 – ESD material marking .62
Figure A.1 – Sign indicating special handling conditions .66
Figure A.2 – Label indicating product is ESD sensitive.67
Figure B.1a – Example 1.70
Figure B.1b – Example 2.70
Figure B.1c – Example 3.71
Figure B.1 – Voltage generated for three types of footwear all on the same flooring
system .71
Table 1 – Type of wrist strap bands .30
Table 2 – Ionizer selection checklist .46
Table A.1 – ESD control program audits requirements .65
---------------------- Page: 9 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
– 4 – TR 61340-5-2 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 5-2: Protection of electronic devices
from electrostatic phenomena –
User guide
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 61340-5-2, which is a technical report, has been prepared by IEC technical committee
101: Electrostatics.
This version cancels and replaces the first edition, which was issued as a technical
specification in 1999. It constitutes a technical revision.
---------------------- Page: 10 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
TR 61340-5-2 © IEC:2007 – 5 –
The main changes with respect to the previous edition are listed below:
This version of IEC 61340-5-2 has been modified to provide guidance for users of
IEC 61340-5-1. The text has been arranged to follow the requirements of IEC 61340-5-1 as
closely as possible as well as providing specific guidance on each of the requirements of
IEC 61340-5-1.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
101/219/CDV 101/233/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61340 series, under the general title Electrostatics, can be found on
the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The contents of the corrigendum of May 2009 have been included in this copy.
---------------------- Page: 11 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
– 6 – TR 61340-5-2 © IEC:2007
INTRODUCTION
This user guide and has been produced for individuals and organizations that are faced with
controlling electrostatic discharge (ESD). It provides guidance that can be used for
developing, implementing and monitoring an electrostatic discharge control program in
accordance with IEC 61340-5-1.
This user guide applies to activities that: manufacture, process, assemble, install, package,
label, service, test, inspect or otherwise handle electrical or electronic parts, assemblies and
equipment susceptible to damage by electrostatic discharges greater than or equal to 100 V
using the human body model (HBM). The 100 V HBM limit was selected for IEC 61340-5-1 as
the baseline susceptibility threshold, since a large majority of the ESD products on the market
have a sensitivity of greater than 100 V.
The limits established for each of the ESD control items are specified for an ESD program
designed for 100 V HBM devices. The 100 V value is predicated on maximum voltage levels
attainable on an individual when they are grounded via techniques accepted throughout the
electronics industry as outlined in IEC 61340-5-1.
For organizations concerned with charged device model damage, IEC 61340-5-1 establishes
requirements concerning the use of insulators in the ESD protected area (EPA) based on
maximum electrostatic field limits. This topic is addressed in more detail in 4.6.
The general principals described in IEC 61340-5-1 are not limited in their applicability to
ESDS with ESD sensitivities of 100 V or greater. For companies that handle ESDS with
sensitivities of less than 100 V (HBM), the general principals of IEC 61340-5-1 can still be
used. The organization may have to modify some of the required limits specified in Tables 2
to 4. The program documentation would then identify that ESDS with sensitivities of less than
100 V HBM were being handled and that this required a change to the limits established in
IEC 61340-5-1.
The fundamental ESD control principles that form the basis of IEC 61340-5-1 are as follows:
a) Avoid a discharge from any charged, conductive object (personnel, equipment) into the
device:
This can be accomplished by bonding or electrically connecting all conductors in the
environment, including personnel, to a known ground or contrived ground (as on shipboard
or on aircraft). This attachment creates an equipotential balance between all items and
personnel. Electrostatic protection can be maintained at a potential different from “zero”
voltage ground potential, as long as all items in the system are at the same potential.
b) Avoid a discharge from any charged ESD sensitive device (the charging can result from
direct contact and separation or can be field induced):
Necessary insulators in the environment cannot lose their electrostatic charge by
attachment to ground. Ionization systems provide neutralization of charges on these
necessary insulators (circuit board materials and some device packages are examples of
necessary insulators). Assessment of the ESD hazard created by electrostatic charges on
the necessary insulators in the work place is required to ensure that appropriate actions
are implemented, according to the risk.
c) Once outside of an electrostatic discharge protected area (hereafter referred to as an
EPA) it is often not possible to control the above items, therefore, ESD protective
packaging may be required.
ESD protection can be achieved by enclosing ESD sensitive products in static protective
materials, although the type of material depends on the situation and destination. Inside
---------------------- Page: 12 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
TR 61340-5-2 © IEC:2007 – 7 –
an EPA, low charging and static dissipative materials may provide adequate protection.
Outside an EPA, low charging and static discharge shielding materials are recommended.
While all of these materials are not discussed in this standard, it is important to recognize
the differences in their application.
---------------------- Page: 13 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
– 8 – TR 61340-5-2 © IEC:2007
ELECTROSTATICS –
Part 5-2: Protection of electronic devices
from electrostatic phenomena –
User guide
1 Scope
This technical report has been developed to support IEC 61340-5-1.
The controls and limits referenced in this standard were developed to protect devices that are
susceptible to discharges of 100 V or greater using the human body model test method.
However, the general concepts are still valid for devices that are susceptible to discharges of
less than 100 V.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60749-26, Semiconductor devices – Mechanical and climatic test methods – Part 26:
Electrostatic discharge (ESD) sensitivity testing – Human body model (HBM)
IEC 61340-2-1 – Electrostatics – Part 2-1: Measurement methods – Ability of materials and
products to dissipate static electric charge
IEC 61340-2-3 – Electrostatics – Part 2-3:Methods of test for determining the resistance and
resistivity of solid planar materials used to avoid electrostatic charge accumulation
IEC 61340-4-1 – Electrostatics – Part 4-1:Standard test methods for specific applications –
Electrostatic resistance of flloor coverings and installed floors
IEC 61340-4-3 – Electrostatics – Part 4-3:Standard test methods for specific applications –
Footwear
IEC 61340-4-5 - Electrostatics – Part 4-5:Standard test methods for specific applications –
Methods for characterizing the electrostatic protection of footwear and flooring in combination
with a person
IEC 61340-5-1, Electrostatics – Part 5-1: Protection of electronic devices from electrostatic
phenomena – General requirements
ANSI/ESD STM2.1, Standard Test Method for the protection of electrostatic discharge
susceptible items – Garments
ANSI/ESD STM3.1, Standard Test Method for the electrostatic discharge susceptible items -
Ionization
---------------------- Page: 14 ----------------------
SIST-TP CLC/TR 61340-5-2:2009
TR 61340-5-2 © IEC:2007 – 9 –
3 Terms and definitions
For the purposes of this document, the terms and definitions of IEC 61340-5-1 apply.
4 ESD control program plan
This clause outlines a step-by-step approach that can be used to establish an ESD control
Program.
4.1 Developing an ESD control program plan
4.1.1 Assignment of an ESD coordinator
In order to have a well thought out and implemented ESD program an ESD coordinator must
be assigned. The ESD coordinator is responsible for all aspects of ESD in the facility. In order
to be effective the ESD coordinator needs:
a) the full support of management;
b) a good understanding of electrostatics and how ESD sensitive devices can be damaged.
The ESD coordinator will often need to attend educational classes or seminars related to
ESD in order to maintain or update their knowledge;
c) a thorough understanding of IEC 61340-5-1 and all of the organization’s processes related
to the handling of ESD sensitive devices.
d) access to measuring equipment for the purposes of performing compliance verification
audits as well as testing new ESD products and materials for use in the ESD program;
e) depending on the size of the facility, the ESD coordinator might also need to have auditors
assigned to conduct the ESD audits.
Finally, management must provide the ESD coordinator with the authority and funding
necessary to ensure that the ESD control program is maintained and enforced.
4.1.2 Determination of part ESD sensitivity
The next step in developing an ESD control program plan is to determine the part, assembly
or equipment sensitivity level under which the plan is to be developed. Although the
requirements outlined in IEC 61340-5-1 are effective fo
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.