MAX V Exposed pad solder reflow problem-2

[Nakaj]

Hi

I have an additional question related to my previous question.
Is there a standard for the contact area of the exposed PAD of MAXV QFP64 with the printed circuit board?
For example, 50% or more.

Thank you for your support.

<Previous questiom>

https://community.intel.com/t5/Programmable-Devices/MAX-V-Exposed-pad-solder-reflow-problem/m-p/1646077/emcs_t/S2h8ZW1haWx8dG9waWNfc3Vic2NyaXB0aW9ufE00MDJDWDFERDJHSklZfDE2NDYwNzd8U1VCU0NSSVBUSU9OU3xoSw

Regards

Nakaj

[AqidAyman_Intel]

Hi Nakaj,

As I refer to last conversations, you are decided not to do the rework due to customer request.

May I know the background for this new question?

Regards,

Aqid

[Nakaj]

Hi Aqid,

Thank you for your reply.

We decided not to do rework due to the customer's request,

but we are currently discussing the quality of the reflow soldering with the customer.

I posted it here because a customer asked me a question of contact area of exposed PAD.

Regards,

Nakaj

[AqidAyman_Intel]

Hello Nakaj,

You may download the package information according to the part number of the device you are using. Link below:

https://www.intel.com/content/www/us/en/support/programmable/support-resources/devices/package.html?family=MAX_V

Regards,

Aqid

[Nakaj]

Hi Aqid,

Rather than the size of the PAD, I would like to know what percentage of the PAD's solder

needs to be in contact with the board.

Regards,

Nakaj

[AqidAyman_Intel]

Helllo Nakaj,

We don't really have the recommended percentage of contact area for the exposed PAD. I have confirmed this with the internal team.

However, they provide an article that is worth for you to look into as your reference. Refer below link:

https://www.allaboutcircuits.com/technical-articles/stencil-design-for-exposed-pad-packages/

Regards,

Aqid

[Nakaj]

Hi Aqid,

Thank you for your reply.

I’m looking forward to hearing from you regarding your internal team discussion.

Regards,

Nakaj

[AqidAyman_Intel]

Hello Nakaj,

The answer I provided before is the confirmation from the internal team.

Regards,

Aqid

[Nakaj]

Hi Aqid,

Thank you very much.

OK. noted.

Regards,

Nakaj

[AqidAyman_Intel]

I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, Please login to ‘https://supporttickets.intel.com/s/?language=en_US’, 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.