DPPM (Defective Parts Per Million) is a key metric for measuring the quality and reliability of automotive chips. When a chip is used in a braking system or autonomous driving control unit, even a failure rate of just 1 in a million can lead to irreversible accidents. Therefore, every stage from design, manufacturing, testing to validation must target an ultra-low DPPM.
This episode introduces the DPPM targets during mass production and warranty periods for various types of automotive chips, such as Power ICs, MCUs, and radar sensor ICs. It also explores the real-world quality requirements from Tier 1 suppliers and OEMs, and how international standards—such as AEC-Q100, IATF 16949, and ISO 26262—shape the industry’s DPPM management strategies. Through a comprehensive overview of the background and supporting data, this episode aims to help viewers understand the rigor and practical approaches involved in automotive chip quality control.
Key Points
- Background and Expectations for DPPM
- Field Return DPPM Expectations
- Reference Standards and Guidelines
- DPPM Targets for Different Chip Types
- DPPM Context and Considerations