JEDEC規格 JESD47 Revision L, 2022: Stress-Test-Driven Qualification of Integrated Circuits

JEDEC規格 JESD 47 Revision L, 2022

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JEDEC規格 JESD 47 Revision L, 2022

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JEDEC JESD47 Revision L, 2022: Stress-Test-Driven Qualification of Integrated Circuits
JEDEC規格 JESD47 Revision L, 2022年版: 集積回路のストレステスト駆動認定
発行元 JEDEC
発行年/月 2022年12月   
装丁 ペーパー
ページ数 36 ページ
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Description

This standard describes a baseline set of acceptance tests for use in qualifying electronic devices as new products, a product family, or as products in a process which is being changed.

These tests are capable of stimulating and precipitating semiconductor device and packaging failure modes on free-standing devices not soldered to a printed wired board (PWB), or the like (base device reliability). The objective is to precipitate failures in an accelerated manner compared to use conditions. Failure Rate projections usually require larger sample sizes than are called out in qualification testing. For guidance on projecting failure rates, refer to JESD85 Methods for Calculating Failure Rates in Units of FITs.

This qualification standard is aimed at a generic qualification for a range of use conditions, but
- may not be applicable at extreme use conditions such as military applications, automotive under-the-hood applications, or uncontrolled avionics environments
- does not cover devices assembled onto a PWB, or the like, which may affect the device reliability under assembled state. This is addressed in JEP150 and e.g., typically applies to TC on WLCSP devices

Additional qualification testing tailored to meet specific requirements such as solder joint interconnect reliability can be developed by applying JESD94.

This set of tests should not be used indiscriminately. Each qualification project should be examined for:
a) Any potential new and unique failure mechanisms.
b) Any situations where these tests/conditions may induce invalid or overstress failures.

If it is known or suspected that failures either are due to new mechanisms or are uniquely induced by the severity of the test conditions, then the application of the test condition as stated is not recommended. Alternatively, new mechanisms or uniquely problematic stress levels should be addressed by building an understanding of the mechanism and its behavior with respect to accelerated stress conditions (Ref. JESD91, “Method for Developing Acceleration Models for Electronic Component Failure Mechanisms” and JESD94, “Application Specific Qualification using Knowledge Based Test Methodology”).

Consideration of PC board assembly-level effects may also be necessary. For guidance on this, refer to JEP150, Stress-Test-Driven Qualification of and Failure Mechanisms Associated with Assembled Solid State Surface-Mount Components.

This document does not relieve the supplier of the responsibility to assure that a product meets the complete set of its requirements.