Agilex 7 FPGA Short-Circuited Without Physical Damage – Need Guidance

Hi,

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For your questions 2 and 3, I think the suggestion we can give should be based on the exact failure symptom. Could you please confirm the following information?

1- Did you measure certain Test Point on the board to confirm the "short"? What are the FPGA pins related to the "short" point?

2- What is the exact failure you observed? Did you observe a specific functional failure? Are there some abnormal output signals? Or basically there's no function working?

3- Did you check the configuration status of FPGA? If you try to detect and program the FPGA with Quartus Programmer, is there any error message in Programmer?

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For your question 1.

Actually, according to functional failure cases reported by other customers, it is quite rare for us to see physical damage. Even for some units with a lot of pins short to ground, there's actually no visible damage.

Some examples below may cause visible damage, but it still depends on the severity:

-- Mechanical/Thermal induced: The unit was subjected to physical damage. The unit was subjected to high temperature reflow/rework process before baking to clear the humidity. (I think for such cases, customer generally do not find us. )

-- Electrical Induced: The unit was subjected to excessively long term of high current.

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Best Regards,

Xiaoyan