FPGA parts, tin balls turn yellow color, why?

[JoyceChane]

we bought some FPGA parts, such as PN # 5CGXFC7D6F27I7N. we found some tin balls turn yellow color, now my QC supposed it is factory production  that make it, actually we can use it. but can you please explain or confirm it is normal so we'll move to next step? i can show you a picture.

[NazrulNaim_Intel]

We sincerely apologize for the inconvenience caused by the delay in addressing your Forum queries. Due to an unexpected back-end issue in our system, your Forum cases, along with others, did not get through as intended. As a result, we have a backlog of cases that we are currently working through one by one.

Please be assured that we are doing everything we can to resolve this issue as quickly as possible. However, this process will take some time, and we kindly ask for your patience and understanding during this period. The cases will be attended by AE shortly.

We appreciate your patience and understanding, and we are committed to providing you with the best support possible.

Thank you for your understanding.

[NazrulNaim_Intel]

Hello,

Before proceeding with the case, can you provide us some information. Can you provide the top mark photo, the labels on the moisture barrier bag and the box. Can you also mention where did you purchased the parts from?

Best regards,

Nazrul Naim

[NazrulNaim_Intel]

Hello,

As we do not receive any response from you on the previous question/reply/answer that we have provided. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

Best regards,

Nazrul Naim