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KNgao's avatar
KNgao
Icon for New Contributor rankNew Contributor
4 years ago

EP3C40F324C8N Leakage voltage 1.38V @ pin#U4 .

Hello, We have got the new FAR from customer and would like to return EP3C40F324C8N for FA. The problem is Leakage voltage 1.38V @ pin#U4 . Could you please review and provide me the FAR numner ...
Farabi's avatar
Farabi
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,

The FAR process need to go through technical investigation first.

Could you please explain what is the details of the pin leakage?

1. How many seeing same issue out of how many produced

2. Methods of leakage measurement

regards,

Farabi

KNgao's avatar
KNgao
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4 years ago

We have only 1 pc failed and need to be return for FA.

The failure was confirm by our tester and becnch testing .

All FAULT signals connected with pinU4 of IC U5c, Measurement voltage has found 1.8 V leakage voltage always send out from IC U5 (CPU) We could suspect that the root cause may came from IC U5 on Eigen PCBA was damaged from.

Measured pin G of Q32 compare with the known good PBCA

  • no any fault measured = 0V and
  • fault measured = 3.3V

Measured Failed PBCA always found leakage voltage 1.38V input triggering from the Eigen PCBA even if the PCBA has no any fault.

Could you please provide us the ship to address? then, we can return this ssupect part to you for further investigation.

  • KNgao's avatar
    KNgao
    Icon for New Contributor rankNew Contributor
    4 years ago

    INTEL-FAE, Could you please update status? Can we retrun the sample to you for further investigation? . Thank you.

    • Farabi's avatar
      Farabi
      Icon for Regular Contributor rankRegular Contributor
      4 years ago

      Hi,

      I will register your case with FAR, will give you the number and address to return.

      regards,

      Farabi