2.8 Warehouse Operations

The warehouse is not a storage unit; it is a processing center. Errors introduced here (wrong count, mixed parts, ESD damage) propagate directly to the SMT line, causing machine stoppages. This section defines the physical protocols for receiving, storage, and issuance.

2.8.1 Receiving: The 3-Way Match 

Every receipt must validate three data points before acceptance:

1. Physical Item: Matches the manufacturer P/N and quantity on the label.
2. Packing Slip: Matches the physical item.
3. Purchase Order: Matches the Packing Slip.

• Discrepancy: Any mismatch halts the receipt. Material moves to the "Trouble Cage."

2.8.2 Storage Protocols

• FIFO (First-In, First-Out): The oldest date code must be issued first. ERP systems must enforce this picking logic.
• MSD Control: Moisture Sensitive Devices must be stored in dry boxes or MBBs (Moisture Barrier Bags) with HIC (Humidity Indicator Cards) per J-STD-033.
• ESD Control: All active components must remain in ESD-shielding packaging until loaded onto the feeder.

2.8.3 Shelf Life Management

• Perishables: Solder paste, adhesives, and flux must carry visual expiry labels.
• Protocol: Expired material is logically locked in the ERP and physically segregated for disposal. Usage of expired chemistry requires a documented waiver and validation test.

Final Checklist