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What is AEC-Q103 Qualification Standard?

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Editorial Team - everything PE

Oct 10, 2024

The AEC-Q103 standard is a qualification standard developed specifically for Micro-Electro-Mechanical Systems (MEMS) to ensure reliability, safety, and performance in harsh automotive environments. This standard dictates the test conditions, methods, and acceptance criteria for various MEMS devices used in automotive applications such as pressure sensors, microphones, and other MEMS components. It was developed by the Automotive Electronics Council (AEC), established in the 1990s by Chrysler, Ford, and General Motors.

AEC-Q103 Stress Test Qualification and Revisions

AEC-Q103 standard outlines various stress tests for ensuring the reliability of Micro-Electro-Mechanical Systems (MEMs)

Reference Standard	Revision	Test Item Details
AEC-Q103-002	A	Failure Mechanism Based Stress Test Qualification for Micro-Electro-Mechanical System (MEMS) Pressure Sensor Devices
AEC-Q103-003	Initial Release	Failure Mechanism-Based Stress Test Qualification for MEMS Microphone Devices

AEC-Q103 Temperature Grading Systems

AEC-Q103 standard categorizes sensors based on the operating temperature range

Grade	Operating Temperature Range	Applications
0	-40°C to +150°C	Electronic control units (ECUs), powertrain, exhaust
1	-40°C to +125°C	ADAS and transmission control
2	-40°C to +105°C	Cabin electronics, infotainment, dashboard systems
3	-40°C to +85°C	Interior systems
4	0°C to +70°C	Consumer electronics