One defective part can result in 1,000 unsafe automobiles. It’s crucial for engineers who operate in the automotive industry to adhere to industry standards. As a result, AEC-Q100 has a firm grasp of automotive standards.
Electrical components in vehicles must operate under extreme stress and in a constantly changing environment. To accomplish this, dependability and durability are the main objectives of the AEC certification, which mostly applies to packaged ICs. Stress testing is then utilized all throughout the design phase of automotive systems to reinforce and increase predictability. The Automotive Electronics Council claims that AEC-Q100 compliance is an essential requirement for designers and engineers.
Let’s explore more about the AEC-Q100 standard, the requirements for obtaining this certification, and why it’s crucial for the auto industry.
Background of Automotive Electronics Council (AEC)
To establish uniform quality requirements for electrical components, Chrysler, Ford, and General Motors established the Automotive Electronics Council.
The Automotive Electronics Council’s AEC-Qxx documents are broad and provide a set of standards for manufacturers to use when designing and testing automotive components. These documents provide general guidance on testing and reliability requirements for electronic components used in automotive applications, but they are not able to cover every potential use case or mode of failure. Therefore, it is important for manufacturers to also include their own standards and testing procedures to ensure product safety and reliability.
AEC-Q100 is a benchmark for component suppliers, and manufacturers must abide by its guidelines to ensure the highest quality components are used in automotive production. The council includes important suppliers to the semiconductor and automotive industries, ensuring that the AEC-Q100 standards are consistent and reliable for both the suppliers and their customers, according to Richard Oshiro, head of automotive quality management systems at Monolithic Power Systems.
There are four further significant standards created by AEC:
AEC-Q101 – This standard has been created for Active components used in Automotive applications.
AEC-Q102 – This standard has been created for discrete optoelectronic semiconductors in automotive applications.
AEC-Q104 (New) – This standard has been created for Multi-Chip Modules (MCM) used in Automotive applications.
AEC-Q200 – This standard has been created for passive components used in Automotive applications.
What Makes This AEC-Q100 Important?
The two automotive quality criteria for semiconductor devices that are most frequently quoted are AEC-Q100 and AEC-Q101. The ISO/TS-16949 standard is frequently seen as an addition to the AEC-Qxxx requirements. In contrast to AEC-Q101, AEC-Q100 is specialized for automotive applications and requires a combination of demanding functional tests and adverse environmental conditions.
This AEC-Q100 is an international technical standard for automotive quality systems. The AEC modifications Q100 represent the ongoing advances in the automobile sector. These standards also ensure that components interact properly.
Its objective was to establish uniform standards for the part qualification and quality assurance. It includes detailed certification and requalification standards, guidelines for using generic data, and particular test processes. The AEC-Q100 standard is crucial because of the consequences of a single defective IC. If this component is not found in time, thousands of defective cars may need to be recalled.
Scope of AEC-Q100
For compact integrated circuits used in automotive applications, AEC-Q100 is a qualification standard for stress tests based on failure mechanisms. It specifies test conditions for qualifying integrated circuits and specifies the minimal stress test-driven certification standards (ICs). These tests have the power to provoke and hasten the failure of semiconductor devices and packages. In contrast to reasonable circumstances, failures are to be precipitated more quickly. Every qualification project needs to be checked for:
- Any potential failure mechanisms as well as any new ones could emerge in the future to ensure that no existing failure modes are left unidentified.
- Any bugs or issues identified in the testing phase can be fixed before deployment.
- Any extreme conditions and/or applications are to ensure the reliability and performance of the project under all operating circumstances.
The user is in charge of verifying and validating all qualification information that attests to compliance with this standard. Device usage by the supplier should abide by the temperature of the device as described in the next section.
What is required to get AEC-Q100 certification?
One of the key aspects of AEC compliance is temperature. In actuality, according to Oshiro, the Q100 specification has four separate grades defined under 0,1,2, and 3. The optimum temperature range of the IC determines these ranges.
|Ambient Operating Temperature Range
|-40℃ to +150℃
|-40℃ to +125℃
|-40℃ to +105℃
|-40℃ to +85℃
After trying to pass testing, it must ensure a specific level of dependability in accordance with the essential qualification categories listed below:
- Accelerated Environment Stress
- Accelerate Lifetime Simulation
- Die Fabrication
- Electrical Verification
- Defect Screening
- Cavity Package Integrity
Use cases in ADAS Applications
The automobile industry has long placed a strong emphasis on reliability. Consumers frequently anticipate owning their automobiles for more than ten years. To lower on-road occurrences and lifetime ownership costs, it follows that essential electrical components must continue to work.
AEC-Q100 is being developed to address the essential image qualities and properties required for ADAS applications and to discover relevant metrics and other helpful data. Additionally, it describes tools and test procedures and defines subjective and objective test methodologies for assessing vehicle camera picture quality features. Image quality is crucial in ADAS implementations for both automotive computer vision systems and driver-facing human-machine interfaces (HMIs).
Conflicting criteria exist for the production of the picture for viewing-based HMI camera systems. On the one side, it must be aesthetically pleasing and “pleasant,” and on the other, it must offer the user a high-quality experience or high degree of enjoyment. At the same time, it must effectively and quickly convey the specific details needed for the application (such as visible detail in shadowed areas). It might be difficult to strike a balance between what is enjoyable and what is helpful.
Automotive licensing is a broad and evolving field. Current standards are continually examined to see if they still meet the requirements of the latest technology and mission profiles. To meet the demands of novel applications like ADAS, automated driving, computer vision, and LIDAR, new standards are being created. In terms of system design and hardware procurement, “AEC-Q qualified” is a crucial consideration that encompasses multiple “grades” and other aspects.
Vadzo Imaging has experience in terms of design and development of camera systems that incorporate AEC-Q100 certified components such as Imaging sensors, ISPs, Controllers and so on. Should you want to know more, please feel free to Contact Us