About Lesson
Moisture-Sensitive Device (MSD) Handling
Purpose: Moisture inside MSDs can lead to component damage during reflow soldering.
Storage Guidelines (As per JEDEC J-STD-033):
-
Store unopened MSDs in Moisture Barrier Bags (MBBs) with desiccants.
-
Place a humidity indicator card (HIC) inside MBBs.
-
After opening, log exposure time and store in dry cabinets or resealed bags.
-
Bake components if floor life exceeds specified hours.
Labels Required:
-
MSL level (e.g., MSL 3, 72 hours)
-
Date/time of opening