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SGhar.1
SGhar.1
Visitor II
September 3, 2022
Solved

MTBF or FIT Value

  • September 3, 2022
  • 2 replies
  • 2689 views

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This topic has been closed for replies.
Best answer by PatrickF

Hi @SGhar.1​ 

Maybe you could have been added more details on your question.

Here is the values for overall STM32MP15x family :

  • 16.9 FITs
  • MTBF @ Tj=25°C: 81739 Years
  • MTBF @ Tj=55°C: 6754 Years
  • MTBF @ Tj=85°C: 847 Years

These number are limited by the sample size, it is not a failure distribution screened by our tests (0 FAIL in our 2 years rolling HTOL monitoring tests).

We can estimate that the intrinsic quality level is much better.

Enlarging the calculation to the whole ST product range using same technology, we have:

  • EFR (Early Failure Rate) <50 PPM (with 0 FAIL also limited by the sample size)
  • <4.40 FITs

Regards,

In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

2 replies

Tesla DeLorean
Tesla DeLorean
Guru
September 3, 2022

Yes​

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PatrickF
PatrickFBest answer
ST Employee
September 5, 2022

Hi @SGhar.1​ 

Maybe you could have been added more details on your question.

Here is the values for overall STM32MP15x family :

  • 16.9 FITs
  • MTBF @ Tj=25°C: 81739 Years
  • MTBF @ Tj=55°C: 6754 Years
  • MTBF @ Tj=85°C: 847 Years

These number are limited by the sample size, it is not a failure distribution screened by our tests (0 FAIL in our 2 years rolling HTOL monitoring tests).

We can estimate that the intrinsic quality level is much better.

Enlarging the calculation to the whole ST product range using same technology, we have:

  • EFR (Early Failure Rate) <50 PPM (with 0 FAIL also limited by the sample size)
  • <4.40 FITs

Regards,

In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

In order to give better visibility on the answered topics, please click on 'Best Answer' on the reply which solved your issue or answered your question.Tip of the day: Try Sidekick STM32 AI agent
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