SRC Forum - Message Replies


Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

Back to message list Topics List About this forum
Original Message:

Posted by: Stanford Lee (stanford@serv.unityopto.com.tw )
Date posted: Mon Mar 1 1:45:04 US/Eastern 2004
Subject: LED Prediction
Message:
I have a question about how to prediction 50,000 hours power depreciation curve. I only have 1,000 hours room temperature burn-in data. Thanks.


Reply:

Subject: LED Reliability
Reply Posted by: BWD (bdudley@alionscience.com )
Organization: RAc
Date Posted: Mon Mar 15 15:00:52 US/Eastern 2004
Message:
Finding the L10 or wear-out point of the LED reliability will require a lot more data than 1000 hours. The only realistic way to find out the life parameters is to place a sample on accelerated stress test. The test needs to be performed to failure, then the life characteristics can be determined.


Back to message list Topics List About this forum
Reply to this message