Definition
Qualification demonstrates that a defined product and process can meet specified use and stress requirements, while reliability monitoring and failure analysis identify degradation mechanisms and feed corrective action back into design and manufacturing.
Process position
Inputs
- Qualified product definition
- Process and material baseline
- Use-condition mission profile
- Stress plan and failure criteria
- Returned or stressed samples
Outputs
- Qualification decision
- Reliability model and monitoring plan
- Root-cause report
- Corrective and preventive action
How it works
- 01Define mission profile and failure criteria
- 02Select accelerating stresses and sample plan
- 03Stress and periodically measure devices
- 04Analyze distributions and failures
- 05Localize and expose the defect
- 06Identify physical mechanism
- 07Correct and verify
Qualification is bounded evidence
A qualification result supports a named design, process, material set, site scope, and stress plan. It does not automatically transfer across unreviewed changes, which is why change control and ongoing reliability monitoring matter after initial release.
Failure analysis moves from symptom to mechanism
The sequence normally narrows from electrical signature and package-level localization to progressively more invasive inspection. Preserving evidence and comparing good and failed units helps prevent an artifact from being mistaken for root cause.
Failure-analysis conclusions should distinguish observed symptoms, localized physical evidence, inferred mechanisms, and verified corrective action.
Boundary: Specific analytical sequences depend on the package, device, and failure signature.
Sources
Citations support the tagged claims above. Access dates record when Maha Strategies last checked the public source.
- [1]Quality and Reliability · TSMC · accessed 2026-08-13
- [2]Microelectronics Standards and Publications · JEDEC · accessed 2026-08-13