Thanks for your explanation.
This is flip chip QFN, so we don't want any Ag plating on the leadframe.
According to your inline process ,they must pass photo resist Ag plating process, could you help to solve this issue?
The TN-Cu2 & TN-Cu3 are acceptable,that's up to you.
But these two LF material are C7025-SH, please be noted.
Thanks.