EN IEC 60749-23:2026
(Main)Semiconductor devices - Mechanical and climatic test methods - Part 23: High temperature operating life
Semiconductor devices - Mechanical and climatic test methods - Part 23: High temperature operating life
IEC 60749-23:2025 specifies the test used to determine the effects of bias conditions and temperature on solid state devices over time. It simulates the device operating condition in an accelerated way and is primarily for device qualification and reliability monitoring. A form of high temperature bias life using a short duration, popularly known as "burn-in", can be used to screen for infant-mortality related failures. The detailed use and application of burn-in is outside the scope of this document. This edition includes the following significant technical changes with respect to the previous edition: a) absolute stress test definitions and resultant test durations have been updated.
Halbleiterbauelemente - Mechanische und klimatische Prüfverfahren - Teil 23: Lebensdauer bei hoher Temperatur
Dispositifs à semiconducteurs - Méthodes d'essais mécaniques et climatiques - Partie 23 : Durée de vie en fonctionnement à haute température
L'IEC 60749-23:2025 spécifie l'essai utilisé pour déterminer les effets dans le temps des conditions de polarisation et de température sur des dispositifs à état solide. Il simule les conditions de fonctionnement des dispositifs d’une manière accélérée et il est essentiellement utilisé pour la qualification et le contrôle de fiabilité. Une forme de durée de vie utilisant une température élevée avec polarisation sur une courte durée, généralement connue sous le nom de "rodage", peut être utilisée pour dépister les défaillances liées à la mortalité infantile. L’utilisation détaillée et l’application du rodage ne font pas partie du domaine d’application du présent document. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) les définitions des essais de contraintes absolues et les durées d'essai qui en résultent ont été mises à jour.
Polprevodniški elementi - Metode za mehansko in klimatsko preskušanje - 23. del: Obratovalna življenjska doba pri visoki temperaturi
General Information
- Status
- Published
- Publication Date
- 29-Jan-2026
- Technical Committee
- CLC/TC 47X - Semiconductor devices and trusted chips
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 30-Jan-2026
- Due Date
- 07-Jul-2025
- Completion Date
- 30-Jan-2026
Relations
- Effective Date
- 15-Oct-2024
- Effective Date
- 15-Oct-2024
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
Overview
FprEN IEC 60749-23:2025 (CLC adoption of IEC 60749-23:2025) specifies accelerated high temperature operating life (HTOL) test methods for semiconductor devices. The test simulates device operating conditions under combined bias and elevated temperature to assess long‑term effects and to accelerate failure mechanisms for qualification and reliability monitoring. A short‑duration HTOL variant (commonly called "burn‑in") can be used to screen infant‑mortality failures; detailed burn‑in application is outside the scope of this document. This edition updates absolute stress test definitions and resultant test durations compared to the previous edition and is based on JEDEC JESD22‑A108G.
Key Topics
- Scope & purpose: Evaluate effects of bias and temperature over time, primarily for device qualification and reliability monitoring.
- Test apparatus:
- Circuitry must limit power dissipation and prevent thermal runaway.
- Device mounting must ensure representative heat dissipation.
- Environmental chamber tolerance: maintain specified temperature within ±5 °C while parts are loaded and unpowered.
- Stress conditions & procedure:
- Stress is applied continuously except during agreed interim measurements.
- Ambient/bias conditions should yield a minimum junction temperature of 125 °C unless otherwise specified for extended environments.
- A legacy benchmark duration commonly used is 1 000 h, though durations are set to meet equivalent field lifetime based on acceleration factors.
- Devices intended for extended‑temperature use may be stressed up to about 250 °C, but stress must not exceed absolute maximum rated junction temperature or voltage.
- Operating voltage is normally the maximum operating voltage specified for the device; higher voltages may be used for acceleration but must not exceed the absolute maximum rated voltage and should be agreed with the manufacturer.
- Biasing configurations: Static or pulsed bias and dynamic operating stresses are allowed. High temperature forward bias (HTFB) is used primarily for power devices, diodes and discrete transistors.
- Measurements & reporting: Interim and final electrical measurements, failure criteria, and comprehensive life‑test reporting are required.
Applications
- Device qualification and characterization of long‑term reliability.
- Reliability monitoring and lifetime projection for product families.
- Screening for infant‑mortality via burn‑in (note: detailed burn‑in practices are outside the standard).
- Complementary testing for power devices (see power cycling standards).
Related Standards
- IEC 60747 (all parts) - semiconductor devices (discrete & ICs).
- IEC 60749‑34 - Power cycling (complements HTOL for power devices).
- JEDEC JESD22‑A108G - basis for the technical revision used in this edition.
Practical value: Implementing FprEN IEC 60749‑23:2025 enables manufacturers and test labs to produce consistent HTOL data, improve qualification confidence, and better detect early failures during product development and production.
Frequently Asked Questions
EN IEC 60749-23:2026 is a draft published by CLC. Its full title is "Semiconductor devices - Mechanical and climatic test methods - Part 23: High temperature operating life". This standard covers: IEC 60749-23:2025 specifies the test used to determine the effects of bias conditions and temperature on solid state devices over time. It simulates the device operating condition in an accelerated way and is primarily for device qualification and reliability monitoring. A form of high temperature bias life using a short duration, popularly known as "burn-in", can be used to screen for infant-mortality related failures. The detailed use and application of burn-in is outside the scope of this document. This edition includes the following significant technical changes with respect to the previous edition: a) absolute stress test definitions and resultant test durations have been updated.
IEC 60749-23:2025 specifies the test used to determine the effects of bias conditions and temperature on solid state devices over time. It simulates the device operating condition in an accelerated way and is primarily for device qualification and reliability monitoring. A form of high temperature bias life using a short duration, popularly known as "burn-in", can be used to screen for infant-mortality related failures. The detailed use and application of burn-in is outside the scope of this document. This edition includes the following significant technical changes with respect to the previous edition: a) absolute stress test definitions and resultant test durations have been updated.
EN IEC 60749-23:2026 is classified under the following ICS (International Classification for Standards) categories: 31.080.01 - Semiconductor devices in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 60749-23:2026 has the following relationships with other standards: It is inter standard links to EN 60749-23:2004, EN 60749-23:2004/A1:2011, EN 60749-43:2017, EN IEC 60749-41:2020, EN IEC 63287-1:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 60749-23:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 60749-23:2025
01-januar-2025
Polprevodniški elementi - Metode za mehansko in klimatsko preskušanje - 23. del:
Obratovalna življenjska doba pri visoki temperaturi
Semiconductor devices - Mechanical and climatic test methods - Part 23: High
temperature operating life
Halbleiterbauelemente - Mechanische und klimatische Prüfverfahren - Teil 23:
Lebensdauer bei hoher Temperatur
Dispositifs à semiconducteurs - Méthodes d'essais mécaniques et climatiques - Partie
23: Durée de vie en fonctionnement à haute température
Ta slovenski standard je istoveten z: prEN IEC 60749-23:2024
ICS:
31.080.01 Polprevodniški elementi Semiconductor devices in
(naprave) na splošno general
oSIST prEN IEC 60749-23:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 60749-23:2025
oSIST prEN IEC 60749-23:2025
47/2881/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60749-23 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-11-22 2025-02-14
SUPERSEDES DOCUMENTS:
47/2879/RR
IEC TC 47 : SEMICONDUCTOR DEVICES
SECRETARIAT: SECRETARY:
Korea, Republic of Mr Cheolung Cha
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 91,TC 104
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the
final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Semiconductor devices - Mechanical and climatic test methods - Part 23: High temperature
operating life
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.
oSIST prEN IEC 60749-23:2025
IEC CDV 60749-23 © IEC 2024 2 47/2881/CDV
1 CONTENTS
3 FOREWORD . 3
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 5
7 4 Test apparatus . 6
8 4.1 Testing requirements . 6
9 4.1.1 Circuitry . 6
10 4.1.2 Device schematic . 6
11 4.1.3 Power . 6
12 4.1.4 Device mounting . 6
13 4.1.5 Power supplies and signal sources . 6
14 4.1.6 Environmental chamber . 6
15 5 Procedure . 6
16 5.1 Stress requirements . 6
17 5.2 Stress duration . 6
18 5.3 Stress conditions . 6
19 5.3.1 Stress condition application . 6
20 5.3.2 Ambient temperature . 7
21 5.3.3 Operating voltage . 7
22 5.3.4 Biasing configurations . 7
23 6 Cool-down . 8
24 7 Measurements . 8
25 8 Failure criteria . 9
26 9 Life Testing reporting . 9
27 10 Summary . 9
29 Table 1 – Additional Stress Requirements for Parts Not Tested Within Time Window . 9
oSIST prEN IEC 60749-23:2025
IEC CDV 60749-23 © IEC 2024 3 47/2881/CDV
33 INTERNATIONAL ELECTROTECHNICAL COMMISSION
34 ____________
36 SEMICONDUCTOR DEVICES –
37 MECHANICAL AND CLIMATIC TEST METHODS –
39 Part 23: High temperature operating life
41 FOREWORD
42 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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72 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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78 represent the latest information, which may be obtained from the patent database available at
79 https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.
80 IEC 60749-23 ED2 has been prepared by IEC technical committee 47: Semiconductor
81 Devices. It is an International Standard.
82 This second edition, based on JEDEC document JESD22-A108G, cancels and replaces the
83 first edition published in 2004, It is used with permission of the copyright holder, JEDEC Solid
84 State Technology Association. This edition constitutes a technical revision.
85 This edition includes the following significant technical changes with respect to the previous
86 edition:
87 a) Absolute stress test definitions and resultant test durations have been updated.
oSIST prEN IEC 60749-23:2025
IEC CDV 60749-23 © IEC 2024 4 47/2881/CDV
88 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
90 Full information on the voting for its approval can be found in the report on voting indicated in
91 the above table.
92 The language used for the development of this International Standard is English.
93 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
94 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
95 available at www.iec.ch/members_experts/refdocs. The main document types developed by
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97 The committee has decided that the contents of this document will remain unchanged until the
98 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
99 specific document. At this date, the document will be
100 • reconfirmed,
101 • withdrawn, or
102 • revised.
oSIST prEN IEC 60749-23:2025
IEC CDV 60749-23 © IEC 2024 5 47/2881/CDV
106 SEMICONDUCTOR DEVICES –
107 MECHANICAL AND CLIMATIC TEST METHODS –
109 Part 23: High temperature operating life
113 1 Scope
114 This test is used to determine the effects of bias conditions and temperature on solid state
115 devices over time. It simulates the device operating condition in an accelerated way, and is
116 primarily for device qualification and reliability monitoring. A form of high temperature bias life
117 using a short duration, popularly known as “burn-in”, may be used to screen for infant-
118 mortality related failures. The detailed use and application of burn-in is outside the scope of
119 this standard.
120 2 Normative references
121 The following documents are referred to in the text in such a way that some or all of their
122 content constitutes requirements of this document. For
...




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