Meaning
Manufacturing records used in hardware production specify the exact manufacturer names and part numbers for every component mounted on a printed circuit assembly. This unblinded BOM provides the purchasing team and the contract manufacturer with full visibility into the supply chain, revealing proprietary silicon and specialized components that are hidden in generic versions. It is used during the final transition from prototype to mass production to secure supply lines and calculate product costs.
The document is updated whenever a component is qualified or replaced.
Sourcing Security
Supply chain security relies on full visibility of every single component’s manufacturer. By utilizing an unblinded BOM, procurement teams can identify single-source components and establish secondary suppliers before production begins. This prevents manufacturing delays caused by component shortages or long lead times.
It helps manage component obsolescence.
Cost Analysis
Material cost optimization requires direct negotiations with silicon manufacturers based on high volumes. The unblinded BOM enables the procurement department to calculate the exact cost of the product’s bill of materials. This document is submitted to the factory during the request for quotation phase.
Certification Compliance
Regulatory approval requires submitting a complete list of used components to certification bodies. The document must match the components on the board exactly.
