WG 6 - TC 47/WG 6

IEC 62951-8:2023 (E) defines terms and specifies the test method for evaluating the stretchability, flexibility, and stability of flexible resistive memory. The test method descriptions include experimental procedures and the equipment to be used. It also includes general requirements for test conditions such as the temperature and relative humidity of the testing environment. The test method described in this document focuses on stability evaluation rather than reliability.

IEC 62951-9:2022(E) specifies the test methods for evaluating the performance of unipolar-type one transistor one resistor (1T1R) resistive memory cells. The performance test methods in this document include read, forming, SET, RESET, endurance and retention. This document is applicable to flexible devices as well as rigid resistive memory devices without any limitations prone to device technology and size.

IEC 63364-1:2022 specifies terms, the test method, and the 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.

IEC TR 63357:2022(E) describes standardization roadmap of fault test methods for integrated circuits used in automotive vehicles. Since automotive vehicles are exposed in harsh environment such as very low or high temperature, vibration, high frequency signals, etc. Therefore, they are tested for possible faults which can be caused by harsh environment. There are several fault test methods and related issues to be standardized.
Semiconductor devices used in automotive vehicles are exposed in harsh environment of very high or very low temperature, vibration, high frequency signals, etc. Therefore, they are tested for possible faults which can be caused by harsh environment Evaluation results following this fault test methods will provide robustness of the semiconductor device.

IEC 62779-4:2020 defines general requirements on the electrical performances of a semiconductor interface for capsule endoscope using galvanic coupling human body communication. It includes general and functional specifications of the interface. The semiconductor interface that is covered in this document is the interface to handle or deliver an electrical signal between the capsule endoscope inside the human body and the HBC modem in the receiving device outside the human body.
NOTE Additional information on capsule endoscope using the human body communication is provided in Annex A of this document.

IEC 62951-6:2019 specifies terms, as well as the test method and report of sheet resistance of the flexible conducting film under bending and folding tests. The measurement methods include the 2-point probe, 4-point probe and Montgomery method, which can be applied to in-situ and ex-situ measurement and the measurements of anisotropic sheet resistance.

IEC 62951-7:2019 specifies evaluation conditions and gives a method of measurement as well as a test set-up for the measurement of barrier performance for thin-film layer with ultra‑low permeation rate under both flat and bending conditions. This document also includes the preparation of specimen, electrical contacts, sensor films and calculation procedures. For these purposes, this document provides terms, definitions, symbols, configurations, and test methods including test conditions such as temperature, relative humidity, testing time.

IEC 62951-4:2019 specifies an evaluation method of the bending fatigue properties of conductive thin film and flexible substrate for the application at flexible semiconductor devices. The films include any films deposited or bonded onto a non-conductive flexible substrate such as thin metal film, transparent conducting electrode, and thin silicon film used for flexible semiconductor devices. The electrical and mechanical behaviours of films on the substrate are evaluated. The fatigue test methods include dynamic bending fatigue test and static bending fatigue test.

IEC 62951-5:2019 specifies the test method for thermal characteristics of flexible materials. This document includes terms, definitions, symbols, and test methods that can be used to evaluate and determine thermal characteristics of flexible materials for practical use. The measurement method relies on non-contact optical thermometry that is based on temperature dependent optical reflectance. This document is applicable to both substrate and thin-film flexible semiconductor materials that are subjected to bending and stretching.

IEC 62951-3:2018(E) specifies the method for evaluating thin film transistor characteristics on flexible substrates under bulging. The thin film transistor is fabricated on flexible substrates, including polyethylene terephthalate (PET), polyimide (PI), elastomer and others. The stress is applied by applying a uniformly-distributed pressure to the flexible substrate using the equipment.

IEC 62969-4:2018 specifies a method of directly fault injection test for automotive semiconductor sensor interface that can be used to support the conformance assurance in the vehicle communications interface.

IEC 62969-1:2017 provides general requirements for performance evaluations and environmental conditions for the power interface of automotive vehicle sensors. For performance evaluations, various electrical performances such as voltage drop from power source to automotive sensors, AC noises and voltage level are included. For environmental conditions, various test conditions such as temperature, humidity and vibration are included. In addition, terms, definitions, symbols and configurations are covered in this part.

IEC 62951-1:2017(E) specifies a bending test method to measure the electromechanical properties or flexibility of conductive thin films deposited or bonded on flexible non-conductive substrates. Conductive thin films on flexible substrates are extensively used in flexible electronic devices and flexible semiconductors. Conductive thin films include any films deposited or bonded onto a non-conductive flexible substrate such as thin metal film, transparent conducting electrode, and thin silicon film. The electrical and mechanical behaviours of thin films on flexible substrates differ from those of freestanding films and substrates due to their interfacial interactions and adhesion between the film and substrate. The object of this standard is to establish simple and repeatable test methods for evaluating the electromechanical properties or flexibility of conductive thin films on flexible substrate. The bending test methods include outer bending test and inner bending test.

IEC 62779-3:2016 defines a functional type of a semiconductor interface for human body communication (HBC). This part includes the categorization of the interface for HBC according to the contact condition; and performance parameters characterizing the interface of each category.

IEC 62779-2:2016 defines a measurement method on electrical performances of an electrode that composes a semiconductor interface for human body communication (HBC). In the measurement method, a signal transmitter is electrically isolated from a signal receiver, so an isolation condition between the transmitter and receiver is maintained to accurately measure the electrode's performances. This part includes general and functional specifications of the measurement method.

IEC 62779-1:2016 defines general requirements for a semiconductor interface used in human body communication (HBC). It includes general and functional specifications of the interface, as well as limiting values and its operating conditions.