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IEC 60749-20-1:2009

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

31-12-2021

Language(s)

English - French

Published date

07-04-2009

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General applicability and reliability considerations
  4.1 Assembly processes
      4.1.1 Mass reflow
      4.1.2 Localized heating
      4.1.3 Socketed components
      4.1.4 Point-to-point soldering
  4.2 Reliability
5 Dry packing
  5.1 Requirements
  5.2 Drying of SMDs and carrier materials before being
      sealed in MBBs
      5.2.1 Drying requirements - level A2
      5.2.2 Drying requirements - levels B2a to B5a
      5.2.3 Drying requirements - carrier materials
      5.2.4 Drying requirements - other
      5.2.5 Excess time between bake and bag
  5.3 Dry pack
      5.3.1 Description
      5.3.2 Materials
      5.3.3 Labels
      5.3.4 Shelf life
6 Drying
  6.1 Drying options
  6.2 Post exposure to factory ambient
      6.2.1 Floor life clock
      6.2.2 Any duration exposure
      6.2.3 Short duration exposure
  6.3 General considerations for baking
      6.3.1 High-temperature carriers
      6.3.2 Low-temperature carriers
      6.3.3 Paper and plastic container items
      6.3.4 Bakeout times
      6.3.5 ESD protection
      6.3.6 Reuse of carriers
      6.3.7 Solderability limitations
7 Use
  7.1 Floor life clock start
  7.2 Incoming bag inspection
      7.2.1 Upon receipt
      7.2.2 Component inspection
  7.3 Floor life
  7.4 Safe storage
      7.4.1 Safe storage categories
      7.4.2 Dry pack
      7.4.3 Dry atmosphere cabinet
  7.5 Reflow
      7.5.1 Reflow categories
      7.5.2 Opened MBB
      7.5.3 Reflow temperature extremes
      7.5.4 Additional thermal profile parameters
      7.5.5 Multiple reflow passes
      7.5.6 Maximum reflow passes
  7.6 Drying indicators
      7.6.1 Drying requirements
      7.6.2 Excess humidity in the dry pack
      7.6.3 Floor life or ambient temperature/humidity exceeded
      7.6.4 Level B6 SMDs
Annex A (normative) Symbol and labels for moisture-sensitive
        devices
Annex B (informative) Board rework
Annex C (informative) Derating due to factory environmental
        conditions
Bibliography

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.

Committee
TC 47
DevelopmentNote
Supersedes IEC PAS 62168 and IEC PAS 62169. (04/2009) Stability Date: 2018. (09/2017)
DocumentType
Standard
Pages
63
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

I.S. EN 60749-37:2008 SEMICONDUCTOR DEVICES - MECHANICAL AND CLIMATIC TEST METHODS - PART 37: BOARD LEVEL DROP TEST METHOD USING AN ACCELEROMETER
EN 62435-5:2017 Electronic components - Long-term storage of electronic semiconductor devices - Part 5: Die and wafer devices
EN 62435-1:2017 Electronic components - Long-term storage of electronic semiconductor devices - Part 1: General
I.S. EN 62435-2:2017 ELECTRONIC COMPONENTS - LONG-TERM STORAGE OF ELECTRONIC SEMICONDUCTOR DEVICES - PART 2: DETERIORATION MECHANISMS
I.S. EN 62435-5:2017 ELECTRONIC COMPONENTS - LONG-TERM STORAGE OF ELECTRONIC SEMICONDUCTOR DEVICES - PART 5: DIE AND WAFER DEVICES
09/30190356 DC : 0 BS EN 60749-40 - SEMICONDUCTOR DEVICES - MECHANICAL AND CLIMATIC TEST METHODS - PART 40: BOARD LEVEL DROP TEST METHOD USING A STRAIN GAUGE
NF EN 60749-37 : 2008 SEMICONDUCTOR DEVICES - MECHANICAL AND CLIMATIC TEST METHODS - PART 37: BOARD LEVEL DROP TEST METHOD USING AN ACCELEROMETER
IEC 62435-4:2018 Electronic components - Long-term storage of electronic semiconductor devices - Part 4: Storage
05/30135664 DC : DRAFT JUN 2005 IEC 60749-37 ED. 1 - SEMICONDUCTOR DEVICES - MECHANICAL AND CLIMATIC TEST METHODS - PART 37: BOARD LEVEL DROP TEST METHOD FOR HANDHELD ELECTRONIC PRODUCTS
CEI EN 60749-37 : 2008 SEMICONDUCTOR DEVICES - MECHANICAL AND CLIMATIC TEST METHODS - PART 37: BOARD LEVEL DROP TEST METHOD USING AN ACCELEROMETER
IEC 61760-4:2015 Surface mounting technology - Part 4: Classification, packaging, labelling and handling of moisture sensitive devices
EN 61760-4:2015/A1:2018 SURFACE MOUNTING TECHNOLOGY - PART 4: CLASSIFICATION, PACKAGING, LABELLING AND HANDLING OF MOISTURE SENSITIVE DEVICES (IEC 61760-4:2015/A1:2018)
IEC 62137-4:2014 Electronics assembly technology - Part 4: Endurance test methods for solder joint of area array type package surface mount devices
BS EN 62435-2:2017 Electronic components. Long-term storage of electronic semiconductor devices Deterioration mechanisms
BS EN 62137-4:2014 Electronics assembly technology Endurance test methods for solder joint of area array type package surface mount devices
I.S. EN 62435-1:2017 ELECTRONIC COMPONENTS - LONG-TERM STORAGE OF ELECTRONIC SEMICONDUCTOR DEVICES - PART 1: GENERAL
BS EN 62435-1:2017 Electronic components. Long-term storage of electronic semiconductor devices General
BS EN 61760-4 : 2015 SURFACE MOUNTING TECHNOLOGY - PART 4: CLASSIFICATION, PACKAGING, LABELLING AND HANDLING OF MOISTURE SENSITIVE DEVICES
CEI EN 62435-2 : 1ED 2017 ELECTRONIC COMPONENTS - LONG-TERM STORAGE OF ELECTRONIC SEMICONDUCTOR DEVICES - PART 2: DETERIORATION MECHANISMS
IEC TS 62686-1:2015 Process management for avionics - Electronic components for aerospace, defence and high performance (ADHP) applications - Part 1: General requirements for high reliability integrated circuits and discrete semiconductors
CEI EN 62435-1 : 1ED 2017 ELECTRONIC COMPONENTS - LONG-TERM STORAGE OF ELECTRONIC SEMICONDUCTOR DEVICES - PART 1: GENERAL
IEC 62435-5:2017 Electronic components - Long-term storage of electronic semiconductor devices - Part 5: Die and wafer devices
IEC 62435-2:2017 Electronic components - Long-term storage of electronic semiconductor devices - Part 2: Deterioration mechanisms
IEC 60749-37:2008 Semiconductor devices - Mechanical and climatic test methods - Part 37: Board level drop test method using an accelerometer
BS EN 62435-5:2017 Electronic components. Long-term storage of electronic semiconductor devices Die and wafer devices
PD IEC/TS 62686-1:2015 Process management for avionics. Electronic components for aerospace, defence and high performance (ADHP) applications General requirements for high reliability integrated circuits and discrete semiconductors
12/30271778 DC : 0 BS EN 62137-4 ED.1 - ELECTRONICS ASSEMBLY TECHNOLOGY - PART 4: ENDURANCE TEST METHODS FOR SOLDER JOINT OF AREA ARRAY TYPE PACKAGE SURFACE MOUNT DEVICES
I.S. EN 62137-4:2014 ELECTRONICS ASSEMBLY TECHNOLOGY - PART 4: ENDURANCE TEST METHODS FOR SOLDER JOINT OF AREA ARRAY TYPE PACKAGE SURFACE MOUNT DEVICES
BS EN 60749-37:2008 Semiconductor devices. Mechanical and climatic test methods Board level drop test method using an accelerometer
I.S. EN 61760-4:2015 SURFACE MOUNTING TECHNOLOGY - PART 4: CLASSIFICATION, PACKAGING, LABELLING AND HANDLING OF MOISTURE SENSITIVE DEVICES
EN 60749-37:2008 Semiconductor devices - Mechanical and climatic test methods - Part 37: Board level drop test method using an accelerometer
EN 62137-4:2014/AC:2015 ELECTRONICS ASSEMBLY TECHNOLOGY - PART 4: ENDURANCE TEST METHODS FOR SOLDER JOINT OF AREA ARRAY TYPE PACKAGE SURFACE MOUNT DEVICES (IEC 62137-4:2014)
EN 62435-2:2017 Electronic components - Long-term storage of electronic semiconductor devices - Part 2: Deterioration mechanisms
OVE/ONORM EN 60749-37 : 2008 SEMICONDUCTOR DEVICES - MECHANICAL AND CLIMATIC TEST METHODS - PART 37: BOARD LEVEL DROP TEST METHOD USING AN ACCELEROMETER

IEC 60749-20:2008 Semiconductor devices - Mechanical and climatic test methods - Part 20: Resistance of plastic encapsulated SMDs to the combined effect of moisture and soldering heat
IEC 60749-37:2008 Semiconductor devices - Mechanical and climatic test methods - Part 37: Board level drop test method using an accelerometer
IEC 60749-30:2005+AMD1:2011 CSV Semiconductor devices - Mechanical and climatic test methods - Part 30: Preconditioning of non-hermetic surface mount devices prior to reliability testing
IEC 60749-39:2006 Semiconductor devices - Mechanical and climatic test methods - Part 39: Measurement of moisture diffusivity and water solubility in organic materials used for semiconductor components
IPC J STD 033C-1:2014 HANDLING, PACKING, SHIPPING AND USE OF MOISTURE, REFLOW, AND PROCESS SENSITIVE DEVICES

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