We ordered some i.MX RT parts in BGA and when they arrived we found that their DATE CODE was already fairly old. Now QA has doubts about using them due to the fact that they are MSL-3. Three questions result from this: 1. What data code 'till production is permissible WITHOUT needing to bake the parts? [Our manufacturer suggests that they accept MSL-3 parts with date code 24 months in the past without baking but the packaging itself suggests 12 months from packing date] 2. What date code 'till production is permissible WITH baking (the NXP shelf-life policy suggest that - for BGAs - a total of 6 years may be the limit: https://www.nxp.com/docs/en/supporting-information/NXP-Shelf-Life-Policy-2020.pdf) 3. From what date code should the parts NOT be used (that is, they are too old and need to be scrapped)?
