The MSL label serves as a reference when the product is used in the production floor.
The MSL label is found on the following:
- Moisture barrier bag (MBB) or Aluminum bag (Al bag)
- Reel or cover tray of a bundled tray
| Number | Field name | Description |
|---|---|---|
| 1 | MSL classification | The MSL classification of the product based on IPC/Jedec J-STD-020. It is the numeric information usually found on the top right corner of the label. |
| 2 | Peak body temperature (PBT) | The product's maximum reflow temperature. See item 2 on Sample MSL label for MSL2 products. |
| 3 | Floor life | The maximum exposure time from unsealing the moisture barrier bag before the product requires baking. See item 3a on Sample MSL label for MSL2 products. |
| 4 | Storage conditions or requirements | The environmental conditions of the storage area where the product was kept per J-STD-033. See item 3b on Sample MSL label for MSL2 products |
| 5 | Bake application | The conditions when to perform baking. See item 4 on Sample MSL label for MSL2 products |
| 6 | Bake requirements | The procedures or specifications to be followed when baking is required. See item 5 on Sample MSL label for MSL2 products |
| 7 | Bag seal date | The dry pack date of the product. |
| 8 | Moisture-sensitive symbol  |
The symbol indicates that the product is moisture-sensitive. |
| 9 | Moisture-sensitivity declaration | A caution warning if the product is moisture-sensitive or not. It is usually found on the top of the label. |
Figure 1. Sample MSL label for MSL1 products
Figure 2. Sample MSL label for MSL2 products
