IES TM 26 2015
$27.08
IES TM-26-15: Methods for Projecting Catastrophic Failure Rate of LED Packages
Published By | Publication Date | Number of Pages |
IES | 2015 | 15 |
None
PDF Catalog
PDF Pages | PDF Title |
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1 | Cover |
3 | Copyright |
4 | Prepared by the Solid State Lighting Subcommittee of the IES Testing Procedures Committee |
6 | Contents |
8 | Introduction 1.0 Scope 2.0 Normative References 3.0 Definitions 3.1 Catastrophic LED Package Failure 3.2 Failure in Time (FIT) Rate |
9 | 4.0 Description of Failure Rates – “Bathtub Curve 4.1 Early Failure Period 4.2 Stable Failure Rate Period 4.3 Wearout Failure Period 5.0 Methods of Failure Rate Projection for the Stable Rate Period 5.1 Prioritization of Catastrophic Failures Analysis and Projection |
10 | 5.2 Convert All Temperatures to Kelvins 5.3 Method 1 – Results of Catastrophic Failure Rate Reported in Table Format 5.4 Method 2 – Catastrophic Failure Rate Projection Model A 5.4.1 Stress Factor for Temperature Dependence 5.4.2 Stress Factor for Forward Current Dependence |
11 | 5.4.3 Reporting Results 5.5 Method 3 – Catastrophic Failure Rate Projection Model B 5.5.1 Stress Factor for Temperature Dependence 5.5.2 Stress Factor for Forward Current Dependence 5.5.3 Reporting Results Informative References |
12 | Annex A – Weibull Analysis for Catastrophic Failure Rate Projection |
14 | References for Annex A |