31.080.01 - Semiconductor devices in general
ICS 31.080.01 Details
Semiconductor devices in general
Halbleiterbauelemente im allgemeinen
Dispositifs a semi-conducteurs en général
Polprevodniški elementi (naprave) na splošno
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IEC 60317-68:2017 specifies the requirements of enamelled rectangular aluminium winding wire of class 120 with a sole coating based on polyvinyl acetal resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. The range of nominal conductor dimensions covered by this standard is
- width: min. 2,0 mm - max. 16,0 mm;
- thickness: min. 0,80 mm - max. 5,60 mm.
Wires of grade 1 and grade 2 are included in this part of IEC 60317 and apply to the complete range of conductors. The specified combinations of width and thickness as well as the specific ratio width/thickness are given in IEC 60317-0-9:2015.
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This part of IEC 60749 provides a steady-state temperature and humidity bias life test to
evaluate the reliability of non-hermetic packaged semiconductor devices in humid
environments.
This test method is considered destructive.
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IEC 60749-5:2023 is available as IEC 60749-5:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-5:2023 provides a steady-state temperature and humidity bias life test to evaluate the reliability of non-hermetic packaged semiconductor devices in humid environments. This test method is considered destructive. This edition includes the following significant technical changes with respect to the previous edition: a) The specification of the test equipment is changed to require the need to minimize relative humidity gradients and maximize air flow between semiconductor devices under test; b) The specification of the test equipment fixtures is changed to require the avoidance of condensation on devices under test and on electrical fixtures connecting the devices to the test equipment; c) replacement of references to “virtual junction” with “die”.
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IEC 60749-5:2023 is available as IEC 60749-5:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-5:2023 provides a steady-state temperature and humidity bias life test to evaluate the reliability of non-hermetic packaged semiconductor devices in humid environments. This test method is considered destructive. This edition includes the following significant technical changes with respect to the previous edition:
a) The specification of the test equipment is changed to require the need to minimize relative humidity gradients and maximize air flow between semiconductor devices under test;
b) The specification of the test equipment fixtures is changed to require the avoidance of condensation on devices under test and on electrical fixtures connecting the devices to the test equipment;
c) replacement of references to “virtual junction” with “die”.
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This part of IEC 63287 gives guidelines for the development of reliability qualification plans
using the concept of mission profile, based on the environmental conditioning and proposed
usage of the product. This document is not intended for military- and space-related applications.
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This part of IEC 63287 gives guidelines for the development of reliability qualification plans using the concept of mission profile, based on the environmental conditioning and proposed usage of the product. This document is not intended for military- and space-related applications.
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IEC 63287-2:2023 gives guidelines for the development of reliability qualification plans using the concept of mission profile, based on the environmental conditioning and proposed usage of the product. This document is not intended for military- and space-related applications.
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This part of IEC 63364-1 provides terms, test method, and report of sound variation detection system based on IoT. It provides the evaluation method for each part of the sound variation detection system based on IoT in the block diagram, the characterization parameters, symbols, test setups and the conditions. In addition, this document defines the configuration items and criteria of standard space and firing situation for the quality evaluation measurement of sound field variation detection system with IoT.
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This part of IEC 60747 specifies the terminology, essential ratings and characteristics, and measuring methods of microwave integrated circuit attenuators.
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This part of IEC 60747 specifies the terminology, essential ratings and characteristics, and measuring methods of microwave integrated circuit limiters.
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This part of IEC 60749 provides a test method that is intended to evaluate and compare drop
performance of surface mount electronic components for handheld electronic product
applications in an accelerated test environment, where excessive flexure of a circuit board
causes product failure. The purpose is to standardize the test board and test methodology to
provide a reproducible assessment of the drop test performance of surface-mounted
components while producing the same failure modes normally observed during product level
test.
This document aims at prescribing a standardized test method and reporting procedure. This is
not a component qualification test and is not meant to replace any system level drop test that
is sometimes used to qualify a specific handheld electronic product. The standard is not meant
to cover the drop test required to simulate shipping and handling-related shock of electronic
components or PCB assemblies. These requirements are already addressed in test methods
such as IEC 60749-10. The method is applicable to both area array and perimeter-leaded
surface mounted packages.
This test method uses an accelerometer to measure the mechanical shock duration and
magnitude applied which is proportional to the stress on a given component mounted on a
standard board. The test method described in IEC 60749-40 uses strain gauge to measure the
strain and strain rate of a board in the vicinity of a component. The customer specification states
which test method is to be used.
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IEC 60749-37:2022 is available as IEC 60749-37:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-37:2022 provides a test method that is intended to evaluate and compare drop performance of surface mount electronic components for handheld electronic product applications in an accelerated test environment, where excessive flexure of a circuit board causes product failure. The purpose is to standardize the test board and test methodology to provide a reproducible assessment of the drop test performance of surface-mounted components while producing the same failure modes normally observed during product level test. This edition includes the following significant technical changes with respect to the previous edition: - correction of a previous technical error concerning test conditions; - updates to reflect improvements in technology.
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IEC 61975:2010 applies to system tests for high-voltage direct current (HVDC) installations which consist of a sending terminal and a receiving terminal, each connected to an a.c. system. The tests specified in this standard are based on bidirectional and bipolar high-voltage direct current (HVDC) installations which consist of a sending terminal and a receiving terminal, each connected to an a.c. system. The test requirements and acceptance criteria should be agreed for back-to-back installations, while multi-terminal systems and voltage sourced converters are not included in this standard. For monopolar HVDC installations, the standard applies except for bipolar tests. This standard only serves as a guideline to system tests for high-voltage direct current (HVDC) installations. The standard gives potential users guidance, regarding how to plan commissioning activities. The tests described in the guide may not be applicable to all projects, but represent a range of possible tests which should be considered. This edition cancels and replaces IEC/PAS 61975 published jointly in 2004 by IEC and CIGRÉ. It constitutes a technical revision incorporating engineering experience.
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IEC 60749-37:2022 is available as IEC 60749-37:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-37:2022 provides a test method that is intended to evaluate and compare drop performance of surface mount electronic components for handheld electronic product applications in an accelerated test environment, where excessive flexure of a circuit board causes product failure. The purpose is to standardize the test board and test methodology to provide a reproducible assessment of the drop test performance of surface-mounted components while producing the same failure modes normally observed during product level test. This edition includes the following significant technical changes with respect to the previous edition:
- correction of a previous technical error concerning test conditions;
- updates to reflect improvements in technology.
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IEC 62007-1:2015 is a specification template for essential ratings and characteristics of the following categories of semiconductor optoelectronic devices to be used in the field of fibre optic systems and subsystems:
- semiconductor photoemitters;
- semiconductor photoelectric detectors;
- monolithic or hybrid integrated optoelectronic devices and their modules. This part of IEC 62007 provides a frame for the preparation of detail specifications for the essential ratings and characteristics. In using this part of IEC 62007, detail specification writers add but do not delete specification parameters and/or groups of specification parameters for particular applications. This third edition cancels and replaces the second edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. The definitions of some symbols and terms are revised in order to harmonize them with those in other SC 86C documents; A clause on APD-TIA has been added. Keywords: semiconductor optoelectronic devices, semiconductor photoemitters, semiconductor photoelectric detectors, monolithic or hybrid integrated optoelectronic devices
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This part of IEC 60749 is intended to evaluate devices in the free state and assembled to printed
wiring boards for use in electrical equipment. The method is intended to determine the
compatibility of devices and subassemblies to withstand moderately severe shocks. The use of
subassemblies is a means to test devices in usage conditions as assembled to printed wiring
boards. Mechanical shock due to suddenly applied forces, or abrupt change in motion produced
by handling, transportation or field operation can disturb operating characteristics, particularly
if the shock pulses are repetitive. This is a destructive test intended for device qualification
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IEC 60749-10:2022 is intended to evaluate devices in the free state and assembled to printed wiring boards for use in electrical equipment. The method is intended to determine the compatibility of devices and subassemblies to withstand moderately severe shocks. The use of subassemblies is a means to test devices in usage conditions as assembled to printed wiring boards. Mechanical shock due to suddenly applied forces, or abrupt change in motion produced by handling, transportation or field operation can disturb operating characteristics, particularly if the shock pulses are repetitive. This is a destructive test intended for device qualification. This edition cancels and replaces the first edition published in 2002. This edition includes the following significant technical changes with respect to the previous edition:
covers both unattached components and components attached to printed wiring boards;
tolerance limits modified for peak acceleration and pulse duration;
mathematical formulae added for velocity change and equivalent drop height.
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IEC 60749-18:2019 is available as IEC 60749-18:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-18:2019 provides a test procedure for defining requirements for testing packaged semiconductor integrated circuits and discrete semiconductor devices for ionizing radiation (total dose) effects from a cobalt-60 (60Co) gamma ray source. Other suitable radiation sources can be used. This document addresses only steady-state irradiations, and is not applicable to pulse type irradiations. It is intended for military- and aerospace-related applications. It is a destructive test. This edition includes the following significant technical changes with respect to the previous edition: - updates to subclauses to better align the test method with MIL-STD 883J, method 1019, including the use of enhanced low dose rate sensitivity (ELDRS) testing; - addition of a Bibliography, which includes ASTM standards relevant to this test method.
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The neutron irradiation test is performed to determine the susceptibility of semiconductor devices to non-ionizing energy loss (NIEL) degradation. The test described herein is applicable to integrated circuits and discrete semiconductor devices and is intended for military- and aerospace-related applications. It is a destructive test. The objectives of the test are as follows: a) to detect and measure the degradation of critical semiconductor device parameters as a function of neutron fluence, and b) to determine if specified semiconductor device parameters are within specified limits after exposure to a specified level of neutron fluence (see Clause 6).
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IEC 60749-10:2022 is intended to evaluate devices in the free state and assembled to printed wiring boards for use in electrical equipment. The method is intended to determine the compatibility of devices and subassemblies to withstand moderately severe shocks. The use of subassemblies is a means to test devices in usage conditions as assembled to printed wiring boards. Mechanical shock due to suddenly applied forces, or abrupt change in motion produced by handling, transportation or field operation can disturb operating characteristics, particularly if the shock pulses are repetitive. This is a destructive test intended for device qualification.
This edition cancels and replaces the first edition published in 2002. This edition includes the following significant technical changes with respect to the previous edition:
covers both unattached components and components attached to printed wiring boards;
tolerance limits modified for peak acceleration and pulse duration;
mathematical formulae added for velocity change and equivalent drop height.
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IEC 60747-5-4:2022(E) specifies the terminology, the essential ratings and characteristics as well as the measuring methods of semiconductor lasers.
This edition includes the following significant technical changes with respect to the previous edition:
References for the terms and definitions related to the lighting area, IEC 60050-845, are revised based on IEC 60050-845:2020;
Emission angle is changed to radiation angle in 3.3.2;
Definitions of rise time and fall time in 3.4.1 are revised based on the publication IEC 60050-521:2002;
Spectral linewidth is added to Table 1 in Clause 4;
Conditions for carrier-to-noise ratio of Table 1 in Clause 4 is amended.
Error in the equation for carrier-to-noise ratio in 5.2.2 is corrected;
Precaution against the equipment used for carrier-to-noise ratio measurement is added in 5.2.2;
Explanation for the measurement method of the small signal cut-off frequency in 5.3.2 of the first edition is deleted because it has been defined in the latest version of ISO 11554;
Reference document for the lifetime in 5.4 is amended;
Precaution against the measuring arrangement used for the half-intensity width and 1/e2-intensity is added in 5.5.3;
Reference tables in Annex A, Annex B and Annex C are revised by following the latest version of ISO publications.
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This part of IEC 60749 establishes the procedure for testing, evaluating, and classifying devices and microcircuits according to their susceptibility (sensitivity) to damage or degradation by exposure to a defined field-induced charged device model (CDM) electrostatic discharge (ESD).
All packaged semiconductor devices, thin film circuits, surface acoustic wave (SAW) devices, opto-electronic devices, hybrid integrated circuits (HICs), and multi-chip modules (MCMs) containing any of these devices are to be evaluated according to this document. To perform the tests, the devices are assembled into a package similar to that expected in the final application.
This CDM document does not apply to socketed discharge model testers. This document describes the field-induced (FI) method. An alternative, the direct contact (DC) method, is described in Annex J.
The purpose of this document is to establish a test method that will replicate CDM failures and provide reliable, repeatable CDM ESD test results from tester to tester, regardless of device type. Repeatable data will allow accurate classifications and comparisons of CDM ESD sensitivity levels.
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IEC 60749-28:2022 is available as IEC 60749-28:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-28:2022 establishes the procedure for testing, evaluating, and classifying devices and microcircuits according to their susceptibility (sensitivity) to damage or degradation by exposure to a defined field-induced charged device model (CDM) electrostatic discharge (ESD). All packaged semiconductor devices, thin film circuits, surface acoustic wave (SAW) devices, opto-electronic devices, hybrid integrated circuits (HICs), and multi-chip modules (MCMs) containing any of these devices are to be evaluated according to this document. To perform the tests, the devices are assembled into a package similar to that expected in the final application. This CDM document does not apply to socketed discharge model testers. This document describes the field-induced (FI) method. An alternative, the direct contact (DC) method, is described in Annex J. The purpose of this document is to establish a test method that will replicate CDM failures and provide reliable, repeatable CDM ESD test results from tester to tester, regardless of device type. Repeatable data will allow accurate classifications and comparisons of CDM ESD sensitivity levels. This edition includes the following significant technical changes with respect to the previous edition: - a new subclause and annex relating to the problems associated with CDM testing of integrated circuits and discrete semiconductors in very small packages; - changes to clarify cleaning of devices and testers.
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IEC 60749-28:2022 is available as IEC 60749-28:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60749-28:2022 establishes the procedure for testing, evaluating, and classifying devices and microcircuits according to their susceptibility (sensitivity) to damage or degradation by exposure to a defined field-induced charged device model (CDM) electrostatic discharge (ESD). All packaged semiconductor devices, thin film circuits, surface acoustic wave (SAW) devices, opto-electronic devices, hybrid integrated circuits (HICs), and multi-chip modules (MCMs) containing any of these devices are to be evaluated according to this document. To perform the tests, the devices are assembled into a package similar to that expected in the final application. This CDM document does not apply to socketed discharge model testers. This document describes the field-induced (FI) method. An alternative, the direct contact (DC) method, is described in Annex J. The purpose of this document is to establish a test method that will replicate CDM failures and provide reliable, repeatable CDM ESD test results from tester to tester, regardless of device type. Repeatable data will allow accurate classifications and comparisons of CDM ESD sensitivity levels. This edition includes the following significant technical changes with respect to the previous edition:
- a new subclause and annex relating to the problems associated with CDM testing of integrated circuits and discrete semiconductors in very small packages;
- changes to clarify cleaning of devices and testers.
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This part of IEC 60749 details the procedures for the measurement of the characteristic
properties of moisture diffusivity and water solubility in organic materials used in the
packaging of semiconductor components.
These two material properties are important parameters for the effective reliability
performance of plastic packaged semiconductors after exposure to moisture and being
subjected to high-temperature solder reflow.
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IEC 60749-39:2021 is available as IEC 60749-39:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-39:2021 details the procedures for the measurement of the characteristic properties of moisture diffusivity and water solubility in organic materials used in the packaging of semiconductor components. These two material properties are important parameters for the effective reliability performance of plastic packaged semiconductors after exposure to moisture and being subjected to high-temperature solder reflow. This edition includes the following significant technical changes with respect to the previous edition: - updated procedure for "dry weight" determination.
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IEC TR 63378-1:2021(E) specifies the terms and definitions that are commonly used for thermal characteristics of BGA and QFP type semiconductor packages, and guidelines to use these thermal characteristics.
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IEC 60749-39:2021 is available as IEC 60749-39:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60749-39:2021 details the procedures for the measurement of the characteristic properties of moisture diffusivity and water solubility in organic materials used in the packaging of semiconductor components. These two material properties are important parameters for the effective reliability performance of plastic packaged semiconductors after exposure to moisture and being subjected to high-temperature solder reflow. This edition includes the following significant technical changes with respect to the previous edition:
- updated procedure for "dry weight" determination.
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This part of IEC 63244 provides general requirements and specifications of the semiconductor
devices for the performance and reliability evaluations of wireless power transfer and charging
systems. For the performance evaluations, this part covers various characterization parameters
and symbols, general system diagrams, and test setups and test conditions.
This document also describes classifications of the wireless power transfer technologies.
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This part of IEC 63287 gives guidelines for reliability qualification plans of semiconductor
integrated circuit products. This document is not intended for military- and space-related
applications.
NOTE 1 The manufacturer can use flexible sample sizes to reduce cost and maintain reasonable reliability by this
guideline adaptation based on EDR-4708, AEC Q100, JESD47 or other relevant document can also be applicable if
it is specified.
NOTE 2 The Weibull distribution method used in this document is one of several methods to calculate the
appropriate sample size and test conditions of a given reliability project
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This part of IEC 62435 specifies storage practices encompassing silicon and semiconductor
device building blocks of all types that are integrated together to into products in the form of
either packages or boards that can be stored as fully assembled units or partial assemblies.
Special attention is given to memories as components and assemblies although methods also
apply to heterogeneous components. Guidelines and requirements for customer-supplier
interaction are provided to manage the complexity.
NOTE In IEC 62435 (all parts), the term "components" is used interchangeably with dice, wafers, passives and
packaged devices.
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IEC 63287-1:2021 gives guidelines for reliability qualification plans of semiconductor integrated circuit products. This document is not intended for military- and space-related applications. NOTE 1 The manufacturer can use flexible sample sizes to reduce cost and maintain reasonable reliability by this guideline adaptation based on EDR-4708, AEC Q100, JESD47 or other relevant document can also be applicable if it is specified. NOTE 2 The Weibull distribution method used in this document is one of several methods to calculate the appropriate sample size and test conditions of a given reliability project. This first edition of IEC 63287-1 cancels and replaces the first edition of IEC 60749-43 published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
the document has been renamed and renumbered to distinguish it from the IEC 60749 (all parts);
a new section concerning the concept of "family" has been added with appropriate renumbering of the existing text.
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IEC 63287-1:2021 gives guidelines for reliability qualification plans of semiconductor integrated circuit products. This document is not intended for military- and space-related applications.
NOTE 1 The manufacturer can use flexible sample sizes to reduce cost and maintain reasonable reliability by this guideline adaptation based on EDR-4708, AEC Q100, JESD47 or other relevant document can also be applicable if it is specified.
NOTE 2 The Weibull distribution method used in this document is one of several methods to calculate the appropriate sample size and test conditions of a given reliability project.
This first edition of IEC 63287-1 cancels and replaces the first edition of IEC 60749-43 published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
the document has been renamed and renumbered to distinguish it from the IEC 60749 (all parts);
a new section concerning the concept of "family" has been added with appropriate renumbering of the existing text.
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IEC 60749-13:2018 describes a salt atmosphere test that determines the resistance of semiconductor devices to corrosion. It is an accelerated test that simulates the effects of severe sea-coast atmosphere on all exposed surfaces. It is only applicable to those devices specified for a marine environment. The salt atmosphere test is considered destructive. This edition includes the following significant technical changes with respect to the previous edition: a) alignment with MIL-STD-883J Method 1009.8, Salt Atmosphere (Corrosion), including information on conditioning and maintenance of the test chamber and mounting of test specimens (including explanatory figures).
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IEC 60747-14-11:2021(E) defines the terms, definitions, configuration, and test methods can be used to evaluate and determine the performance characteristics of surface acoustic wave-based semiconductor sensors integrated with ultraviolet, illuminance, and temperature sensors. The measurement methods are for DC characteristics and RF characteristics, and the measurement method for RF characteristics includes a direct mode and differential amplifier mode based on feedback oscillation. This document excludes devices dealt with by TC 49: piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection.
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IEC 60191-1:2018(E) gives guidelines on the preparation of outline drawings of discrete devices, including discrete surface-mounted semiconductor devices with lead count less than 8. This edition includes the following significant technical changes with respect to the previous edition: a) the Scope has been extended to include surface-mounted semiconductor devices with a lead count less than 8; b) a definition of the term "stand-off" has been added; c) the methods for locating the datum have been extended to be suitable for SMD-packages; d) the visual identification of terminal position one for automatic handling has been clarified; e) the rules for the drawing of terminals have been clarified; f) Table A.1 has been completed with symbols specifically for SMD-packages; g) Annex B "Standardization philosophy" has been deleted; h) a normative Annex with special rules for SMD-packages has been added; i) the examples of semiconductor device drawings have been aligned to state-of-the-art packages including SMD-packages.
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IEC Corrected Version
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IEC 60749-26:2018 establishes the procedure for testing, evaluating, and classifying components and microcircuits according to their susceptibility (sensitivity) to damage or degradation by exposure to a defined human body model (HBM) electrostatic discharge (ESD). The purpose of this document is to establish a test method that will replicate HBM failures and provide reliable, repeatable HBM ESD test results from tester to tester, regardless of component type. Repeatable data will allow accurate classifications and comparisons of HBM ESD sensitivity levels. ESD testing of semiconductor devices is selected from this test method, the machine model (MM) test method (see IEC 60749-27) or other ESD test methods in the IEC 60749 series. Unless otherwise specified, this test method is the one selected. This fourth edition cancels and replaces the third edition published in 2013. This edition constitutes a technical revision. This standard is based upon ANSI/ESDA/JEDEC JS-001-2014. It is used with permission of the copyright holders, ESD Association and JEDEC Solid state Technology Association. This edition includes the following significant technical changes with respect to the previous edition: a) a new subclause relating to HBM stressing with a low parasitic simulator is added, together with a test to determine if an HBM simulator is a low parasitic simulator; b) a new subclause is added for cloned non-supply pins and a new annex is added for testing cloned non-supply pins.
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IEC 62435-7:2020 on long-term storage applies to micro-electromechanical devices (MEMS) in long-term storage that can be used as part of obsolescence mitigation strategy. Long-term storage refers to a duration that may be more than 12 months for products scheduled for storage. Philosophy, good working practice, and general means to facilitate the successful long-term storage of electronic components are also addressed.
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IEC 60749-12:2017 describes a test to determine the effect of variable frequency vibration, within the specified frequency range, on internal structural elements. This is a destructive test. It is normally applicable to cavity-type packages This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) alignment with MIL-STD-883J Method 2007, Vibration, variable frequency.
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This part of IEC 60747 specifies the terminology, essential ratings, characteristics, safety test
and the measuring methods of magnetic coupler and capacitive coupler.
It specifies the principles and requirements of insulation and isolation characteristics for
magnetic and capacitive couplers for basic insulation and reinforced insulation.
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This part of IEC 60749 provides a means of assessing the resistance to soldering heat of
semiconductors packaged as plastic encapsulated surface mount devices (SMDs). This test is
destructive.
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This part of IEC 60749 describes a test used to determine whether encapsulated solid state
devices used for through-hole mounting can withstand the effects of the temperature to which
they are subjected during soldering of their leads by using wave soldering.
In order to establish a standard test procedure for the most reproducible methods, the solder
dip method is used because of its more controllable conditions. This procedure determines
whether devices are capable of withstanding the soldering temperature encountered in printed
wiring board assembly operations, without degrading their electrical characteristics or internal
connections.
This test is destructive and may be used for qualification, lot acceptance and as a product
monitor.
The heat is conducted through the leads into the device package from solder heat at the
reverse side of the board. This procedure does not simulate wave soldering or reflow heat
exposure on the same side of the board as the package body.
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IEC 60749-20:2020 is available as IEC 60749-20:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60749-20:2020 provides a means of assessing the resistance to soldering heat of semiconductors packaged as plastic encapsulated surface mount devices (SMDs). This test is destructive. This edition includes the following significant technical changes with respect to the previous edition: - incorporation of a technical corrigendum to IEC 60749-20:2008 (second edition ); - inclusion of new Clause 3; - inclusion of explanatory notes.
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