Managing reliability cost-effectively with today's ever-diminishing product development cycle time requires pro-active control over the design and manufacturing processes, using a physics-of-failure (PoF) approach. Accelerated stress testing is one of the key resources in the PoF approach.

Accelerated stress test exposures simulate product life cycles over compressed time periods by accelerating the damage accumulation rate for relevant wearout damage mechanisms. If done early in the development phase, in conjunction with physics-of-failure (PoF) design, accelerated testing can enhance process and design maturity, and enable early introduction of mature products with robust design margins. Accelerated stress exposures are also useful in the production phase to ensure process control. However, accelerated testing may not be efficient unless one understands how to select the right type of accelerated test, how to determine the testing stresses, how to understand the test results, and how to correlate the test to the field life. PoF approach is the key to answer these crucial questions and achieve an efficient accelerated product qualification.

Participants will learn how to make accelerated stress testing a value-added activity and use accelerated test results to take pro-active corrective measures early in the design and production phases, thus ensuring consistently high reliability and quality of design and processes.

For Planning Your Training Course, please click here. You can also contact the calce tranning Team Lead by Dr. Michael Pecht for more information.

1. Introduction

• Qualification in Product Development

• Purpose of Qualification Tests

• Change in Product Certification Methodology

• Reliability Assessment Process

• Similarity Analysis for Reliability Prediction

• How to Determine Qualification Conditions

• Define lifetime application (manufacturing, environment and use) conditions based on target market segments

• Stress Limits and Margins

• Types of Accelerated Tests

• Qualitative Tests

• Quantitative Tests

• Qualitative Tests

• Benefits

• Unanswered questions

• Quantitative Accelerated Life Testing

• “Usage Rate Acceleration” or “Continuous Use Acceleration”

• The Problem with “Continuous Use Acceleration”

• Accelerating High Usage Products

• Different “Accelerated” Stress Conditions Can Give Different Results

• Qualification for Life Assessment

• Life – Stress Relationship

• Arrhenius Relationship

• Eyring Relationship

• Inverse Power Law Relationship

• Two Parameter Relationship

• Two-Stress Type Testing

• Case Studies

Books

• Electronic Packaging: Design, materials, Process, and Reliability
• High Temperature Electronics
• Long-Term Non-Operating Reliability of Electronic Products
• Product Reliability, Maintainability, and Supportability Handbook
• Plastic Encapsulated Microelectronics