Semiconductor devices - Mechanical 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 60749-20-1:2009 applies to all non-hermetic SMD packages which are subjected to reflow solder processes and which are exposed to the ambient air. The purpose of this document is to provide SMD manufacturers and users with standardized methods for handling, packing, shipping, and use of moisture/reflow sensitive SMDs which have been classified to the levels defined in IEC 60749-20. These methods are provided to avoid damage from moisture absorption and exposure to solder reflow temperatures that can result in yield and reliability degradation. By using these procedures, safe and damage-free reflow can be achieved, with the dry packing process, providing a minimum shelf life capability in sealed dry-bags from the seal date.

Halbleiterbauelemente - Mechanische und klimatische Prüfverfahren - Teil 20-1: Handhabung, Verpackung, Kennzeichnung und Transport oberflächenmontierbarer Bauelemente, die empfindlich gegen die Kombination von Feuchte und Lötwärme sind

Dispositifs à semiconducteurs - Méthodes d'essais mécaniques et climatiques - Partie 20-1: Manipulation, emballage, étiquetage et transport des composants pour montage en surface sensibles à l'effet combiné de l'humidité et de la chaleur de brasage

La CEI 60749-20-1:2009 s'applique aux boîtiers CMS non hermétiques qui sont soumis aux procédés de brasage par refusion et qui sont exposés à l'air ambiant. L'objet de ce document est de fournir aux fabricants et aux utilisateurs de CMS des méthodes normalisées pour la manipulation, l'emballage, le transport et l'utilisation des CMS sensibles à l'humidité/la refusion qui sont classés selon les niveaux définis dans la CEI 60749-20. Ces méthodes sont fournies pour éviter les dommages provoqués par l'absorption d'humidité et l'exposition aux températures de brasage par refusion pouvant donner lieu à une dégradation de rendement et de fiabilité. L'utilisation de ces procédures permet une refusion sûre et ne causant pas de dommages, avec le procédé d'emballage avec dessiccant, ce qui permet une durée minimale de stockage dans des sacs scellés avec dessiccant à compter de la date de scellement.

Polprevodniški elementi - Mehanske in klimatske preskusne metode - 20-1. del: Obdelava, pakiranje, označevanje in pošiljanje elementov za površinsko montažo (SMD), občutljivih na učinkovanje vlage in spajkalne vročine (IEC 60749-20-1:2009)

General Information

Status
Published
Publication Date
04-Jun-2009
Drafting Committee
Parallel Committee
Current Stage
6060 - Document made available
Start Date
05-Jun-2009
Due Date
05-Jul-2009
Completion Date
05-Jun-2009

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SLOVENSKI STANDARD
SIST EN 60749-20-1:2009
01-september-2009
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2EGHODYDSDNLUDQMHR]QDþHYDQMHLQSRãLOMDQMHHOHPHQWRY]DSRYUãLQVNRPRQWDåR

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Semiconductor devices - Mechanical 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 60749-20-1:2009)
Halbleiterbauelemente - Mechanische und klimatische Prüfverfahren - Teil 20-1:
Handhabung, Verpackung, Kennzeichnung und Transport oberflächenmontierbarer
Bauelemente, die empfindlich gegen die Kombination von Feuchte und Lötwärme sind
(IEC 60749-20-1:2009)

Dispositifs à semiconducteurs - Méthodes d'essais mécaniques et climatiques - Partie 20

-1: Manipulation, emballage, étiquetage et transport des composants pour montage en

surface sensibles à l'effet combiné de l'humidité et de la chaleur de brasage (CEI 60749-

20-1:2009)
Ta slovenski standard je istoveten z: EN 60749-20-1:2009
ICS:
31.080.01 Polprevodniški elementi Semiconductor devices in
(naprave) na splošno general
SIST EN 60749-20-1:2009 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 60749-20-1:2009
---------------------- Page: 2 ----------------------
SIST EN 60749-20-1:2009
EUROPEAN STANDARD
EN 60749-20-1
NORME EUROPÉENNE
June 2009
EUROPÄISCHE NORM
ICS 31.080.01
English version
Semiconductor devices -
Mechanical 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 60749-20-1:2009)
Dispositifs à semiconducteurs - Halbleiterbauelemente -
Méthodes d'essais mécaniques Mechanische und klimatische
et climatiques - Prüfverfahren -
Partie 20-1: Manipulation, emballage, Teil 20-1: Handhabung, Verpackung,
étiquetage et transport des composants Kennzeichnung und Transport
pour montage en surface sensibles oberflächenmontierbarer Bauelemente,
à l'effet combiné de l'humidité die empfindlich gegen die Kombination
et de la chaleur de brasage von Feuchte und Lötwärme sind
(CEI 60749-20-1:2009) (IEC 60749-20-1:2009)

This European Standard was approved by CENELEC on 2009-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

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: Avenue Marnix 17, B - 1000 Brussels

© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60749-20-1:2009 E
---------------------- Page: 3 ----------------------
SIST EN 60749-20-1:2009
EN 60749-20-1:2009 - 2 -
Foreword

The text of document 47/2010/FDIS, future edition 1 of IEC 60749-20-1, prepared by IEC TC 47,

Semiconductor devices, was submitted to the IEC-CENELEC parallel vote and was approved by

CENELEC as EN 60749-20-1 on 2009-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 60749-20-1:2009 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 60749-37 NOTE Harmonized as EN 60749-37:2008 (not modified).
IEC 60749-39 NOTE Harmonized as EN 60749-39:2006 (not modified).
__________
---------------------- Page: 4 ----------------------
SIST EN 60749-20-1:2009
- 3 - EN 60749-20-1:2009
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 60749-20 - Semiconductor devices - Mechanical and EN 60749-20 200X
climatic test methods -
Part 20: Resistance of plastic encapsulated
SMDs to the combined effect of moisture and
soldering heat
1) 3)
IEC 60749-30 - Semiconductor devices - Mechanical and EN 60749-30 2005
climatic test methods -
Part 30: Preconditioning of non-hermetic
surface mount devices prior to reliability
testing
Undated reference.
To be ratified.
Valid edition at date of issue.
---------------------- Page: 5 ----------------------
SIST EN 60749-20-1:2009
---------------------- Page: 6 ----------------------
SIST EN 60749-20-1:2009
IEC 60749-20-1
Edition 1.0 2009-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Semiconductor devices – Mechanical 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
Dispositifs à semiconducteurs – Méthodes d'essais mécaniques et climatiques –
Partie 20-1: Manipulation, emballage, étiquetage et transport des composants
pour montage en surface sensibles à l'effet combiné de l'humidité et de la
chaleur de brasage
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 31.080.01 ISBN 2-8318-1036-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 60749-20-1:2009
– 2 – 60749-20-1 © IEC:2009
CONTENTS

FOREWORD...........................................................................................................................4

INTRODUCTION.....................................................................................................................6

1 Scope...............................................................................................................................7

2 Normative references .......................................................................................................7

3 Terms and definitions .......................................................................................................7

4 General applicability and reliability considerations............................................................9

4.1 Assembly processes................................................................................................9

4.1.1 Mass reflow .................................................................................................9

4.1.2 Localized heating ........................................................................................9

4.1.3 Socketed components .................................................................................9

4.1.4 Point-to-point soldering ...............................................................................9

4.2 Reliability ................................................................................................................9

5 Dry packing ....................................................................................................................10

5.1 Requirements........................................................................................................10

5.2 Drying of SMDs and carrier materials before being sealed in MBBs.......................10

5.2.1 Drying requirements - level A2...................................................................10

5.2.2 Drying requirements - levels B2a to B5a....................................................10

5.2.3 Drying requirements - carrier materials ......................................................10

5.2.4 Drying requirements - other .......................................................................11

5.2.5 Excess time between bake and bag...........................................................11

5.3 Dry pack................................................................................................................11

5.3.1 Description ................................................................................................11

5.3.2 Materials ...................................................................................................11

5.3.3 Labels .......................................................................................................13

5.3.4 Shelf life ....................................................................................................14

6 Drying ............................................................................................................................14

6.1 Drying options .......................................................................................................14

6.2 Post exposure to factory ambient ..........................................................................16

6.2.1 Floor life clock ...........................................................................................16

6.2.2 Any duration exposure...............................................................................16

6.2.3 Short duration exposure ............................................................................16

6.3 General considerations for baking .........................................................................17

6.3.1 High-temperature carriers..........................................................................17

6.3.2 Low-temperature carriers...........................................................................17

6.3.3 Paper and plastic container items ..............................................................17

6.3.4 Bakeout times............................................................................................17

6.3.5 ESD protection ..........................................................................................17

6.3.6 Reuse of carriers .......................................................................................17

6.3.7 Solderability limitations..............................................................................17

7 Use ................................................................................................................................18

7.1 Floor life clock start ...............................................................................................18

7.2 Incoming bag inspection........................................................................................18

7.2.1 Upon receipt..............................................................................................18

7.2.2 Component inspection ...............................................................................18

7.3 Floor life................................................................................................................18

7.4 Safe storage..........................................................................................................19

---------------------- Page: 8 ----------------------
SIST EN 60749-20-1:2009
60749-20-1 © IEC:2009 – 3 –

7.4.1 Safe storage categories.............................................................................19

7.4.2 Dry pack....................................................................................................19

7.4.3 Dry atmosphere cabinet.............................................................................19

7.5 Reflow...................................................................................................................19

7.5.1 Reflow categories ......................................................................................19

7.5.2 Opened MBB .............................................................................................19

7.5.3 Reflow temperature extremes ....................................................................19

7.5.4 Additional thermal profile parameters ........................................................20

7.5.5 Multiple reflow passes ...............................................................................20

7.5.6 Maximum reflow passes ............................................................................20

7.6 Drying indicators ...................................................................................................20

7.6.1 Drying requirements ..................................................................................20

7.6.2 Excess humidity in the dry pack.................................................................20

7.6.3 Floor life or ambient temperature/humidity exceeded.................................21

7.6.4 Level B6 SMDs..........................................................................................21

Annex A (normative) Symbol and labels for moisture-sensitive devices................................22

Annex B (informative) Board rework.....................................................................................27

Annex C (informative) Derating due to factory environmental conditions ..............................28

Bibliography..........................................................................................................................31

Figure 1 – Typical dry pack configuration for moisture-sensitive SMDs in shipping

tubes ....................................................................................................................................11

Figure 2a – Example humidity indicator card for level A2 ......................................................13

Figure 2b – Example humidity indicator card for levels B2a to B5a .......................................13

Figure 2 – Example humidity indicator cards .........................................................................13

Figure A.1 – Moisture-sensitive symbol (example) ................................................................22

Figure A.2 – MSID label (example) .......................................................................................22

Figure A.3 – Information label for level A1 or B1 (example)...................................................23

Figure A.4 – Moisture-sensitive caution label for level A2 (example) .....................................24

Figure A.5 – Moisture-sensitive caution label for levels B2-B5a (example) ............................25

Figure A.6 – Moisture-sensitive caution label for level B6 (example) .....................................26

Table 1 – Dry packing requirements......................................................................................10

Table 2 – Reference conditions for drying mounted or unmounted SMDs (user bake:

floor life begins counting at time = 0 after bake)....................................................................14

Table 3 – Default baking times used prior to dry-pack that were exposed to conditions

≤60 % RH (supplier bake: MET = 24 h) .................................................................................

Table 4 – Moisture classification level and floor life ..............................................................18

Table C.1 – Recommended equivalent total floor life (days) for level A2 at 20 °C, 25 °C,

30 °C and 35 °C for ICs with Novolac, biphenyl and multifunctional epoxies (reflow at

same temperature at which component was classified) .........................................................28

Table C.2 – Recommended equivalent total floor life (days) for levels B2a to B5a at

20 °C, 25 °C, 30 °C and 35 °C for ICs with Novolac, biphenyl and multifunctional

epoxies (reflow at same temperature at which component was classified).............................29

---------------------- Page: 9 ----------------------
SIST EN 60749-20-1:2009
– 4 – 60749-20-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SEMICONDUCTOR DEVICES –
MECHANICAL 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
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.

International Standard IEC 60749-20-1 has been prepared by IEC technical committee 47:

Semiconductor devices.

This standard cancels and replaces IEC/PAS 62168 and IEC/PAS 62169 published in 2000.

IEC/PAS 62169 was based on a Joint (IPC/JEDEC) Industry Standard. This first edition of

IEC 60749-20-1 constitutes a technical revision.
---------------------- Page: 10 ----------------------
SIST EN 60749-20-1:2009
60749-20-1 © IEC:2009 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
47/2010/FDIS 47/2013/RVD

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 the parts in the IEC 60749 series, under the general title Semiconductor devices –

Mechanical and climatic test methods, 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.
---------------------- Page: 11 ----------------------
SIST EN 60749-20-1:2009
– 6 – 60749-20-1 © IEC:2009
INTRODUCTION

The advent of surface-mount devices (SMDs) introduced a new class of quality and reliability

concerns regarding package damage ‘‘cracks and delamination’’ from the solder reflow

process. This document describes the standardized levels of floor life exposure for

moisture/reflow-sensitive SMDs along with the handling, packing and shipping requirements

necessary to avoid moisture/reflow-related failures. IEC 60749-20 defines the classification

procedure and Annex A of this document defines the labelling requirements.

Moisture from atmospheric humidity enters permeable packaging materials by diffusion.

Assembly processes used to solder SMDs to printed circuit boards (PCBs) expose the entire

package body to temperatures higher than 200 °C. During solder reflow, the combination of

rapid moisture expansion, materials mismatch, and material interface degradation can result

in package cracking and/or delamination of critical interfaces within the package.

The solder reflow processes of concern are convection, convection/IR, infrared (IR), vapour

phase (VPR) and hot air rework tools. The use of assembly processes that immerse the

component body in molten solder are not recommended for most SMDs.

This first edition of IEC 60749-20-1 is based principally on IPC/JEDEC J-STD-033 and the

permission to use this standard is gratefully acknowledged. It is also based on contributing

documents from various national committees.
___________
Refer to Bibliography.
---------------------- Page: 12 ----------------------
SIST EN 60749-20-1:2009
60749-20-1 © IEC:2009 – 7 –
SEMICONDUCTOR DEVICES –
MECHANICAL 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
1 Scope

This part of IEC 60749 applies to all non-hermetic SMD packages which are subjected to

reflow solder processes and which are exposed to the ambient air.

The purpose of this document is to provide SMD manufacturers and users with standardized

methods for handling, packing, shipping, and use of moisture/reflow sensitive SMDs which

have been classified to the levels defined in IEC 60749-20. These methods are provided to

avoid damage from moisture absorption and exposure to solder reflow temperatures that can

result in yield and reliability degradation. By using these procedures, safe and damage-free

reflow can be achieved, with the dry packing process, providing a minimum shelf life

capability in sealed dry-bags from the seal date.

Two test conditions, method A and method B, are specified in the soldering heat test of

IEC 60749-20. For method A, moisture soak conditions are specified on the assumption that

moisture content inside the moisture barrier bag is less than 30 % RH. For method B,

moisture soaking conditions are specified on the assumption that manufacturer’s exposure

time (MET) does not exceed 24 h and the moisture content inside the moisture barrier bag is

less than 10 % RH. In an actual handling environment, SMDs tested by method A are

permitted to absorb moisture up to 30 % RH, and SMDs tested by method B are permitted to

absorb moisture up to 10 % RH. This standard specifies the handling conditions for SMDs

subjected to the above test conditions.

NOTE Hermetic SMD packages are not moisture sensitive and do not require moisture precautionary handling.

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 60749-20, Semiconductor devices – Mechanical and climatic test methods – Part 20:

Resistance of plastic-encapsulated SMDs to the combined effect of moisture and soldering

heat

IEC 60749-30, Semiconductor devices – Mechanical and climatic test methods – Part 30:

Preconditioning of non-hermetic surface mount devices prior to reliability testing

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
active desiccant

desiccant that is either fresh (new) or has been baked according to the manufacturer’s

recommendations to renew it to original specifications
---------------------- Page: 13 ----------------------
SIST EN 60749-20-1:2009
– 8 – 60749-20-1 © IEC:2009
3.2
bar code label

a label that gives information in a code consisting of parallel bars and spaces, each of various

specific widths

NOTE For the purposes of this standard, the bar code label is on the lowest level shipping container and includes

information that describes the product, e.g., part number, quantity, lot information, supplier identification, and

moisture-sensitivity level etc.
3.3
mass reflow

reflow of a number of components with simultaneous attachment by an infrared (IR),

convection/IR, convection, or vapour phase reflow (VPR) process
3.4
carrier
container that directly holds components such as a tray, tube, or tape and reel
3.5
desiccant
absorbent material used to maintain a low relative humidity
3.6
floor life

allowable time period for a moisture-sensitive device, after removal from a moisture barrier

bag, dry storage or dry bake and before the solder reflow process
3.7
humidity indicator card
HIC

card on which a moisture-sensitive chemical is applied in such a way that it will make a

significant, perceptible change in colour (hue), typically from blue (dry) to pink (wet) when the

indicated relative humidity is exceeded

NOTE The HIC is packed inside the moisture-barrier bag, along with a desiccant, to aid in determining the level of

moisture to which the moisture-sensitive devices have been subjected.
3.8
manufacturer’s exposure time
MET

maximum time after bake that the component manufacturer requires to process components

prior to bag seal; it also includes the maximum time allowed at the distributor for having the

bag open to split out smaller shipments
3.9
moisture barrier bag
MBB

bag designed to restrict the transmission of water vapour and used to pack moisture-sensitive

devices
3.10
rework

the removal of a component for scrap, reuse, or failure analysis; the replacement of an

attached component; or the heating and repositioning of a previously attached component

3.11
shelf-life

maximum storage period for a dry-packed moisture-sensitive device in an unopened moisture

barrier bag (MBB) to avoid exceeding the specified interior bag ambient humidity
---------------------- Page: 14 ----------------------
SIST EN 60749-20-1:2009
60749-20-1 © IEC:2009 – 9 –
3.12
surface-mount device
SMD

plastic-encapsulated surface-mount devices made with moisture-permeable materials

NOTE For the purposes of this standard, the term SMD is limited as indicated in the definition.

3.13
solder reflow

a solder attachment process in which previously applied solder or solder paste is melted to

attach a component to the printed circuit board
3.14
water vapour transmission rate
WVTR

measure of the permeability of plastic film or metallized plastic film material to moisture

4 General applicability and reliability considerations
4.1 Assembly processes
4.1.1 Mass reflow

This standard applies to mass solder reflow assembly by convection, convection/IR, infrared

(IR), and vapour phase (VPR), processes.
...

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