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RSang's avatar
RSang
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

How to proceed to have the RMA# for 1ST280EY2F55I2LG (Stratix 10) q'ty 1pcs?

we have FPGA device (Stratix 10) failed flying probe test Q'ty 1 pcs from product NPI. After verify, we found the resistance of pin BC41 (VCCT_GXBL1C) vs pin BB43 (Gnd) is low resistance(23 Ohm) co...
RSang's avatar
RSang
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Dear Wani,

Please find the answers inline

1. What is the failure symptom? Please elaborate the failure symptom in detail.

[CTH]: Flying probe failed pin "VP1P12_VCCT_GXB" impedance abnormal. Pls see detail in FA report

2.When did the failure happen? How did you discover the failure?

[CTH]: during Flying probe test.

3.How did you determine the failure? Please elaborate the procedures.

[CTH]: Pls see detail in FA report.

4.Does the failure unit ever working before failure?

[CTH]: Never worked before.

5.Did they violate solder re-flow temperature profiles, moisture sensitivity? Please provide the re-flow temperature profiles.

[CTH]: Peak temperature of reflow soldering on this BGA is 236 degree C follow per supplier recommend (not over 245 degree C).

6.Did you swap the failure device to a known good board? Is the failure following the device or board?

[CTH]:we cannot swaps the component with know good board due to customer not allow to use re-ball component. Referring verification result FA report confirm relate with BGA device.